Abstract

A notching system for an electrode sheet coated with slurry on a surface of a collector includes: an electrode unwinder from which the electrode sheet is unwound; a film unwinder from which a protective film stacked on the electrode sheet is unwound; a notching device configured to notch a non-coating portion, which is a portion that is not coated with the slurry on the electrode sheet, when provided in the state in which the protective film is stacked on the electrode sheet; and a rewinder configured to wind the notched electrode sheet. A notching system for an electrode sheet coated with slurry on a surface of a collector includes: an electrode unwinder from which the electrode sheet is unwound; a film unwinder from which a protective film stacked on the electrode sheet is unwound; a notching device configured to notch a non-coating portion, which is a portion that is not coated with the slurry on the electrode sheet, when provided in the state in which the protective film is stacked on the electrode sheet; and a rewinder configured to wind the notched electrode sheet. Accordingly, the problem such as the cutting and tearing of the electrode sheet and the problem of causing the scratches due to the separation of the graphite powder from the surface of the electrode sheet may be solved.

IPC Classes  ?

• B26F 1/12 - Perforating by punching, e.g. with relatively-reciprocating punch and bed to notch margins of work
• B65H 18/10 - Mechanisms in which power is applied to web-roll spindle
• B65H 23/04 - Registering, tensioning, smoothing, or guiding webs longitudinally
• B65H 39/16 - Associating two or more webs
• B65H 41/00 - Machines for separating superposed webs
• H01M 4/04 - Processes of manufacture in general

Abstract

A secondary battery includes a battery case accommodating therein an electrode assembly with an electrode lead protruding therefrom and including a sealing portion in which an outer perimeter is sealed. The sealing portion includes a first sealing portion on the electrode lead side of the battery case; and a second sealing portion on the electrode lead side of the battery case. The first sealing portion and the second sealing portion each have one end and another end in a protruding direction of the electrode lead, and the another end of the second sealing portion extends further in a direction opposite to the protruding direction of the electrode lead than the another end of the first sealing portion

IPC Classes  ?

• H01M 50/184 - Sealing members characterised by their shape or structure
• H01M 50/105 - Pouches or flexible bags
• H01M 50/178 - Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag cells

Abstract

A battery system may include a plurality of battery packs, a plurality of first relays, each first relay of the plurality of first relays connected between a positive electrode of each respective battery pack of the plurality of battery packs and each respective first node of a plurality of first nodes for each of the plurality of battery packs, a plurality of second relays connected between a negative electrode of the respective battery pack and each respective second node of a plurality of second nodes for each of the plurality of battery packs, a capacitor having both ends connected between a first wiring connected to the plurality of first nodes and a second wiring connected to the plurality of second nodes, a resistor and a switch connected in series between the first wiring and the second wiring, and a plurality of pack battery management systems (BMS).

IPC Classes  ?

• G01R 31/327 - Testing of circuit interrupters, switches or circuit-breakers
• B60L 58/18 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
• G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
• G01R 31/54 - Testing for continuity
• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
• H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• H02J 7/34 - Parallel operation in networks using both storage and other DC sources, e.g. providing buffering

Abstract

A battery module includes a plurality of battery cells and a plurality of vents, each vent associated with a respective battery cell. A heat sink is positioned adjacent the vents parts and is configured to dissipate heat from the plurality of battery cells. The heat sink includes a heat dissipation case having a metal material and a resinous material and defining a flow path groove through which cooling water is configured to flow, and a heat dissipation film adjacent the vents and coupled to the heat dissipation case and surrounding the flow path groove.

IPC Classes  ?

• H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
• A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
• A62C 35/10 - Containers destroyed or opened by flames or heat
• H01M 10/613 - Cooling or keeping cold
• H01M 10/643 - Cylindrical cells
• H01M 10/6567 - Liquids
• H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
• H01M 50/342 - Non-re-sealable arrangements
• H01M 50/673 - Containers for storing liquidsDelivery conduits therefor

Abstract

A battery module includes a battery cell stack including a plurality of battery cells; a module frame housing the battery cell stack; and a cooling pipe member formed between an upper part of the battery cell stack and the module frame. The cooling pipe member comprises a first cooling pipe part and a second cooling pipe part.

IPC Classes  ?

• H01M 10/6567 - Liquids
• H01M 10/613 - Cooling or keeping cold
• H01M 10/625 - Vehicles
• H01M 10/647 - Prismatic or flat cells, e.g. pouch cells
• H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
• H01M 50/258 - Modular batteriesCasings provided with means for assembling
• H01M 50/271 - Lids or covers for the racks or secondary casings

Abstract

A cooling member includes an upper plate, a lower plate, and cooling water contained into an inner space between the upper plate and the lower plate. Sealing parts are formed at edges of the upper plate and the lower plate, wherein a coupling groove is formed inside the sealing part. A fastening part coupled by a fastening member is formed outside the sealing part.

IPC Classes  ?

• H01M 10/6557 - Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
• H01M 10/613 - Cooling or keeping cold
• H01M 10/647 - Prismatic or flat cells, e.g. pouch cells

Abstract

An electrolyte, a battery comprising the same, and a method for producing the same are provided. The electrolyte includes: a polymer mixture including a polyethylene (PEO)-based copolymer containing crosslinkable functional groups and a non-crosslinkable PEO-based copolymer; a ceramic compound; and a polar compound, wherein at least some of the crosslinkable functional groups of the PEO-based copolymer containing crosslinkable functional groups form crosslinks with each other and the polar compound is contained in the polymer mixture.

IPC Classes  ?

• H01M 10/056 - Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes

Abstract

A battery cell pressing system may include a sealed case having an internal chamber, the sealed case including at least one window to allow visual inspection of the internal chamber; a pouch-type battery cell disposed within the internal chamber of the sealed case; a fluid filling the internal chamber and surrounding the pouch-type battery cell; a fluid entrance in fluid communication with the internal chamber; a pressing member configured to adjust a pressure of the fluid within the internal chamber such that the pressure at which the fluid presses the pouch-type battery cell is approximately 1 MPa to 10 MPa; a heater configured to heat the fluid within the internal chamber; and a pressure measuring member configured to measure the pressure within the internal chamber. The fluid isotropically presses the pouch-type battery cell during at least one of charging and discharging of the pouch-type battery cell.

IPC Classes  ?

• H01M 10/04 - Construction or manufacture in general
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
• H01M 10/44 - Methods for charging or discharging
• H01M 10/615 - Heating or keeping warm
• H01M 50/105 - Pouches or flexible bags

Abstract

The present disclosure relates to a cell packaging device. The cell packaging device can include a cell grip unit with a cell grip part including a first member provided with a roller and a second member disposed opposite to the first member at a predetermined interval to provide an insertion space to receive a cell. A gap adjusting part of the cell grip unit can adjust a gap between the first member and the second member. A transport part of the cell packaging unit can transport the cell grip unit.

IPC Classes  ?

• B65G 47/90 - Devices for picking-up and depositing articles or materials
• H01M 10/04 - Construction or manufacture in general

Abstract

Disclosed is a battery module, which includes a cell stack including a plurality of battery cells; a compression member disposed on at least one side of the cell stack and interposed in a gap between the battery cells, the compression member being configured to be shape-deformable by an external pressure; and a pressurizing member configured to pressurize the compression member on the at least one side of the cell stack.

IPC Classes  ?

• H01M 50/242 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
• H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
• H01M 50/293 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
• H01M 50/505 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing comprising a single busbar

Abstract

Disclosed is a lithium secondary battery including: a positive electrode; a negative electrode; and an electrolyte, wherein the positive electrode comprises a positive electrode active material layer comprising a positive electrode active material layer composition, wherein the negative electrode comprises a negative electrode active material layer comprising a negative electrode active material layer composition, wherein the positive electrode active material layer composition comprises a positive electrode active material comprising a layered active material containing nickel, and an olivine-based active material, wherein the negative electrode active material layer composition comprises a negative electrode active material comprising a silicon-based active material, and wherein a part by weight of the olivine-based active material (A) based on 100 parts by weight of the positive electrode active material, and a part by weight of the silicon-based active material (B) based on 100 parts by weight of the negative electrode active material satisfy Formulas 1 and 2: Disclosed is a lithium secondary battery including: a positive electrode; a negative electrode; and an electrolyte, wherein the positive electrode comprises a positive electrode active material layer comprising a positive electrode active material layer composition, wherein the negative electrode comprises a negative electrode active material layer comprising a negative electrode active material layer composition, wherein the positive electrode active material layer composition comprises a positive electrode active material comprising a layered active material containing nickel, and an olivine-based active material, wherein the negative electrode active material layer composition comprises a negative electrode active material comprising a silicon-based active material, and wherein a part by weight of the olivine-based active material (A) based on 100 parts by weight of the positive electrode active material, and a part by weight of the silicon-based active material (B) based on 100 parts by weight of the negative electrode active material satisfy Formulas 1 and 2: 4 . 5 ⁢ 2 ⁢ 4 + 0 . 9 ⁢ 3 ⁢ 9 × e 0 . 0 ⁢ 5 ⁢ 3 ⁢ 7 × A < B < - 4 . 3 ⁢ 1 ⁢ 2 + 5 . 1 ⁢ 8 ⁢ 3 × e 0 . 0 ⁢ 5 ⁢ 3 ⁢ 7 × A [ Equation ⁢ 1 ] 10 ≤ A ≤ 9 ⁢ 0 . [ Equation ⁢ 2 ]

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
• H01M 4/583 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

A battery pack includes a cell stack including one or more battery cells, including a pack case. The pack case includes a base plate supporting a lower portion of the cell stack; a main wall extending across the base plate and coupled to a center portion of the base plate; a side wall having a hollow shape and including a gas venting path therein, and coupled along an edge of the base plate; and a plurality of supplementary wall having a front end coupled to the main wall, and a rear end coupled to the side walls. The supplementary wall includes a first partition member including a pair of ribs along a longitudinal direction of the supplementary wall, and a second partition member coupled to the first partition member. At least one of the first partition member and the second partition member includes a first hole between the ribs.

IPC Classes  ?

• H01M 50/358 - External gas exhaust passages located on the battery cover or case
• H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
• H01M 50/291 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape

Abstract

A pack case includes a base plate, a side plate, a lower cross beam, and an upper cross beam. The side plate is coupled along a periphery of the base plate to form a receiving space therein, the lower cross beam is coupled to the base plate to transversely divide the receiving space inside the base plate, and the upper cross beam is coupled to the lower cross beam. The lower cross beam and the upper cross beam are each provided with fastening grooves to regulate the installation position of a cell laminate.

IPC Classes  ?

• H01M 50/262 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders with fastening means, e.g. locks
• H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
• H01M 50/271 - Lids or covers for the racks or secondary casings
• H01M 50/291 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
• H01M 50/505 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing comprising a single busbar

Abstract

A system for managing a battery, may include a wireless communication unit configured to communicate using a plurality of associated lower-level battery management systems disposed in a same battery rack through a first communication channel, and a channel change unit configured to allow the wireless communication unit to communicate with a non-associated lower-level battery management system in a different battery rack using a second communication channel different from the first communication channel for a preset time at a preset period.

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• G01R 31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
• G01R 31/371 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with remote indication, e.g. on external chargers
• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
• H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte

Abstract

A negative electrode for a lithium secondary battery, a method for manufacturing the same, and a lithium secondary battery including the same are provided. The negative electrode includes a first negative electrode active material layer having a first negative electrode active material comprising one or more selected from the group consisting of a carbon-based active material, a silicon-based active material, a metal-based active material capable of forming an alloy with lithium, and a lithium-containing nitride; and a second negative electrode active material layer having a second negative electrode active material comprising one or more selected from the group consisting of Si, SiOx (0

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/04 - Processes of manufacture in general
• H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
• H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

A battery diagnosing apparatus, a battery pack, an electric vehicle and a battery diagnosing method are provided. The battery diagnosing apparatus is provided for a battery array including first to mth batteries (m is a natural number of 3 or more) connected in series. The battery diagnosing apparatus includes voltage sensors configured to detect voltage of each of the first to mth batteries, and a controller configured to generate first to mth voltage profiles representing a voltage change history of each of the first to mth batteries during charging or discharging of the battery array. The controller diagnoses the battery array by comparing each of first to (m−1)th comparison voltage profiles with a criterion voltage profile. The criterion voltage profile is one of the first to mth voltage profiles, and the first to (m−1)th comparison voltage profiles are remaining (m−1) voltage profiles other than the criterion voltage profile.

IPC Classes  ?

• G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
• G01R 19/10 - Measuring sum, difference, or ratio
• G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
• G01R 31/374 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
• G01R 31/3835 - Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
• G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery

Abstract

A battery data analysis server according to an embodiment, disclosed in the present document, comprises: a first communication unit that receives battery data from a plurality of vehicles; an analysis unit that determines, from among the plurality of vehicles, target vehicles that have been operated on a target day, analyzes each of pieces of the battery data corresponding to each of the target vehicles, and generates daily data on the basis of the result of the analysis; a data lake that stores the daily data; a message queue that acquires data information including the number of pieces of the daily data stored in the data lake in real time; a storage unit that receives at least a portion of the daily data from the data lake and stores same; and a scheduler that stores the daily data in the storage unit on the basis of the number of pieces of the daily data and the data information, which are being processed by the storage unit for storage.

IPC Classes  ?

• G06F 16/25 - Integrating or interfacing systems involving database management systems
• G06F 16/22 - IndexingData structures thereforStorage structures
• G06F 16/2458 - Special types of queries, e.g. statistical queries, fuzzy queries or distributed queries
• G06Q 50/40 - Business processes related to the transportation industry
• G06Q 50/50 - Business processes related to the communications industry

Abstract

A battery pack according to the present invention comprises: a plurality of secondary batteries which include battery cases having electrode leads and lead sealing portions corresponding to the electrode leads, and which face each other such that the lead sealing portions are arranged in one direction; cooling plates positioned between the plurality of secondary batteries; and a pack case having an accommodation space for accommodating the plurality of secondary batteries, the pack case having drains that are adjacent to the lead sealing portions and are recessed in the direction of moving farther away from the lead sealing portions.

IPC Classes  ?

• H01M 50/691 - Arrangements or processes for draining liquids from casingsCleaning battery or cell casings
• H01M 10/6557 - Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
• H01M 10/6551 - Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
• H01M 50/289 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs
• H01M 10/613 - Cooling or keeping cold
• H01M 50/271 - Lids or covers for the racks or secondary casings
• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells

Abstract

The present international application relates to a dam slurry for an electrode, comprising: inorganic particles; a binder; a hydrophobic additive; and an aqueous solvent, wherein the hydrophobic additive is in particulate form having a specific surface area (BET) of 500 m2/g or more, the content of the hydrophobic additive is in a range of 0.03-35 parts by weight based on 100 parts by weight of total solid content, and the dam slurry for the electrode enables control of an electrode sliding shape and suppression of fat edge occurrence.

IPC Classes  ?

• H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/04 - Processes of manufacture in general
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

According to exemplary embodiments, a battery cell manufacturing device is provided. The battery cell manufacturing device may comprise: an image matching device, which includes a first image acquisition unit for acquiring first images of a first electrode assembly that has a tab stack of a first electrode and has, on one end portion thereof, a first electrode lead welded to the tab stack, a second image acquisition unit for acquiring a second image of a second electrode assembly that is determined to be usable through re-inspection of the first electrode assembly that is determined to be defective through inspection based on the first images, and an image matching unit, which compares the second image and the plurality of first images so as to extract a first image matched with the second image; and an ID allocation device for allocating, as an ID of the second electrode assembly, an ID of the first electrode assembly of the first image matched to the second image. In addition, a battery cell system comprising the battery cell manufacturing device is provided. The present invention also provides a battery cell manufacturing method using image matching.

IPC Classes  ?

• H01M 10/04 - Construction or manufacture in general
• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
• H01M 50/54 - Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
• G01N 21/88 - Investigating the presence of flaws, defects or contamination
• B23K 31/12 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups relating to investigating the properties, e.g. the weldability, of materials

Abstract

The present application relates to a negative active material, a method for preparing same, a negative electrode composition, a negative electrode for a lithium secondary battery comprising the negative electrode composition, and a lithium secondary battery comprising the negative electrode. Etching the crystalline surface by surface-etching the crushed silicon-based active material itself via alkaline solution treatment allows lithium ion mobility to be controlled, and the specific surface areas of the 111 and 220 planes in the silicon-based active material can be adjusted in response to changing etching conditions, thereby allowing intercalation/deintercalation reaction of lithium to be even, and the stress to the silicon-based active material to be reduced.

IPC Classes  ?

• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 10/052 - Li-accumulators
• C01B 33/02 - Silicon
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

A battery management apparatus according to embodiments and experimental examples of the present invention may comprise: a command to detect the occurrence of an abnormality in a battery system; a command to detect a specific battery group in which an abnormality has occurred according to whether balancing is performed if an abnormality has occurred in the battery system; and a command to detect a specific battery in which an abnormality has occurred on the basis of the temperatures of a plurality of batteries in the specific battery group.

IPC Classes  ?

• G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
• G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
• G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
• G01R 31/385 - Arrangements for measuring battery or accumulator variables
• G01R 31/52 - Testing for short-circuits, leakage current or ground faults
• H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte

Abstract

Provided is a battery pack comprising: a plurality of cell units, each comprising one or more battery cells: one or more spacers disposed between the plurality of cell units and each provided with one or more venting channels through which gas discharged from one or more of the battery cells can flow; and one or more cooling members arranged to face at least one cell unit from among the plurality of cell units, wherein the plurality of cell units and one or more cooling members are arranged along a first direction, and the plurality of cell units and one or more of the spacers are arranged along a second direction intersecting the first direction.

IPC Classes  ?

• H01M 10/613 - Cooling or keeping cold
• H01M 10/6557 - Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
• H01M 50/502 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing
• H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
• H01M 50/367 - Internal gas exhaust passages forming part of the battery cover or caseDouble cover vent systems

Abstract

A battery data analysis system according to one embodiment disclosed herein includes: an information acquisition device which detects ignition-on and ignition-off of a target vehicle and transmits battery data acquired from the target vehicle to a server, and which counts the number of transmissions of the battery data from an ignition-on section of the target vehicle and transmits a cumulative number of transmissions signal to the server; and the server for determining the transmission state of the battery data of the target vehicle on the basis of the result of comparing the number of pieces of battery data received from the ignition-on section of the target vehicle and the cumulative number of transmissions.

IPC Classes  ?

• B60L 58/10 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
• G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
• G01R 31/371 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with remote indication, e.g. on external chargers
• G07C 5/02 - Registering or indicating driving, working, idle, or waiting time only
• H04W 4/40 - Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]

Abstract

Provided is a battery cell comprising: an electrode tab assembly in which a plurality of electrode tabs extending from a plurality of electrode plates to one side are stacked; a case in which the plurality of electrode plates are accommodated; and a lead tab electrically connected to the electrode tab assembly and having at least a portion exposed to the outside of the case. The electrode tab assembly includes: a first connection part formed by welding and coupling at least some of the plurality of electrode tabs to each other; and a second connection part extending from the first connection part and welded and coupled to the lead tab, wherein the number of electrode tabs constituting the second connection part is smaller than the number of electrode tabs constituting the first connection part.

IPC Classes  ?

• H01M 50/54 - Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
• H01M 50/534 - Electrode connections inside a battery casing characterised by the material of the leads or tabs

Abstract

The present invention provides a lithium secondary battery comprising: a negative electrode including a negative electrode current collector and a negative electrode active material layer formed on the negative electrode current collector; a positive electrode; an electrolyte including a lithium salt, an organic solvent, and an additive, wherein the negative electrode active material layer includes Si as a negative electrode active material, the organic solvent includes a fluoroethylene carbonate, and Z has a value of 0.1-0.2. X is the content (wt%) of Si on the basis of the total weight of the negative electrode active material in the negative electrode active material layer, and Y is the content (wt%) of the fluoroethylene carbonate on the basis of the total weight of the electrolyte after the activation of the lithium secondary battery.

IPC Classes  ?

• H01M 10/052 - Li-accumulators
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 10/0569 - Liquid materials characterised by the solvents
• H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 10/04 - Construction or manufacture in general
• H01M 10/0567 - Liquid materials characterised by the additives

Abstract

2244 is preserved as leach residue and reused as a raw material for lithium iron phosphate, and thus productivity and economic feasibility are significantly improved. Moreover, this method for recovering lithium is an eco-friendly lithium recovery method that does not require wastewater treatment.

IPC Classes  ?

• C22B 26/12 - Obtaining lithium
• C22B 1/02 - Roasting processes
• C22B 3/32 - Carboxylic acids
• C22B 3/22 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means
• H01M 10/54 - Reclaiming serviceable parts of waste accumulators

Abstract

According to an embodiment disclosed herein, a process management device comprises an air supply unit and an exhaust unit that each operate at a rotational speed to form an air flow to a slurry, and a damper for adjusting the air flow, and may include: a sensor for measuring the differential pressure in at least some of a plurality of drying zones for drying the slurry; and a controller for adjusting at least one of the rotational speed of the air supply unit, the rotational speed of the exhaust unit, or the opening rate of the damper.

IPC Classes  ?

• G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
• G05D 16/00 - Control of fluid pressure
• H01M 4/04 - Processes of manufacture in general

Abstract

The present invention relates to a positive electrode for a secondary battery and a secondary battery comprising same and, more specifically, to a positive electrode for a secondary battery, comprising a first positive electrode layer and a second positive electrode layer.

IPC Classes  ?

• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 10/0562 - Solid materials
• H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to an anode and a manufacturing method therefor. The anode comprises a first anode active layer and a second anode active layer on an anode current collector. Here, the degree of alignment (O.I) of each anode active layer of the anode satisfies a predetermined range, and thus high adhesion of the anode active layer to the anode current collector is implemented, thereby providing excellent lifespan characteristics. In addition, a lithium secondary battery comprising same has excellent output characteristics, and enables charging in a short time even at a 1C-rate.

IPC Classes  ?

• H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 4/1393 - Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 4/583 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 10/052 - Li-accumulators
• H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

A battery module of the present invention includes: a stack configured by one or more battery cells; a case for receiving the stack; and a PCB assembly provided inside the case and connecting a first bus bar provided on one side of the stack and a second bus bar provided on the other side of the stack to allow electricity to flow therethrough or blocking electricity from flowing when a current equal to or greater than a preconfigured value flows, wherein the PCB assembly includes: a first connection cable connected to the first bus bar; a second connection cable connected to the second bus bar; and a PCB substrate including a circuit for connecting the first connection cable and the second connection cable to allow electricity to flow therethrough and a fuse for blocking electricity from flowing through the circuit when a current equal to or greater than a preconfigured value flows on the circuit.

IPC Classes  ?

• H01M 50/581 - Devices or arrangements for the interruption of current in response to temperature
• H01M 50/519 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing comprising printed circuit boards [PCB]
• H01M 50/507 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
• H01M 50/271 - Lids or covers for the racks or secondary casings
• H02H 7/18 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteriesEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for accumulators

Abstract

A fire-resistant cable includes a cable core wire, a fire-resistant silicone sheath layer surrounding portions of the cable core wire excluding both ends thereof and ceramicized at high temperatures to support the cable core wire, and a metal case accommodating the cable core wire and the fire-resistant silicone sheath layer. Both sides of the metal case are provided with openings through which opposite ends of the cable core wire are drawn out to the outside. The fire-resistant cable can be used in a battery pack.

IPC Classes  ?

• H01B 7/42 - Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
• H01B 3/46 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes silicones
• H01M 10/658 - Means for temperature control structurally associated with the cells by thermal insulation or shielding
• H01M 50/24 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
• H01M 50/298 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by the wiring of battery packs

Abstract

An apparatus for diagnosing a state of a battery includes a voltage measuring unit configured to measure a voltage of a battery and measure a target voltage for the battery when the measured voltage reaches a preset first reference voltage, a resistance measuring unit configured to measure a target resistance of the battery when the measured voltage reaches a preset second reference voltage, and a control unit configured to determine a voltage increase/decrease pattern for the target voltage based on a voltage profile in which the target voltage is stored, determine a resistance increase/decrease pattern for the target resistance based on a resistance profile in which the target resistance is stored, and diagnose a state of the battery from the voltage increase/decrease pattern and the resistance increase/decrease pattern according to a preset diagnostic rule.

IPC Classes  ?

• G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
• G01R 31/385 - Arrangements for measuring battery or accumulator variables
• G01R 31/389 - Measuring internal impedance, internal conductance or related variables
• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells

Abstract

An optical communication device includes a first detachable communication module structure configured to block light between an inside and an outside. The first detachable communication module structure may include: a first terminal on the outside; a second terminal on the outside; a first master light emitter attached to a first surface of the inside and coupled to the first terminal; and a first slave light receiver attached to a second surface of the inside and coupled to the second terminal, the first surface being opposite to the second surface.

IPC Classes  ?

• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
• H01M 10/44 - Methods for charging or discharging

Abstract

The present invention relates to a sealed portion folding apparatus and method for pouch-shaped battery cells, and more particularly to a sealed portion folding apparatus for pouch-shaped battery cells including a lower unit configured to allow a sealed portion to be seated thereon. The lower unit includes a lower folding block configured to perform horizontal reciprocation and upward and downward movement, an upper unit including an upper folding block configured to perform horizontal reciprocation and upward and downward movement and to press the sealed portion so as to be bent to a predetermined angle, a lower folding guide unit configured to perform upward and downward movement and to guide the sealed portion so as to be bent to a predetermined angle, and an upper folding guide unit configured to perform upward and downward movement and to guide the sealed portion so as to be bent to a predetermined angle.

IPC Classes  ?

• B21D 39/02 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
• H01M 50/105 - Pouches or flexible bags

Abstract

A negative electrode composition, a negative electrode including the same, and a lithium secondary battery including the negative electrode are provided. The negative electrode composition comprises a silicon-based active material comprising Si and optionally SiOx (0

IPC Classes  ?

• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 10/052 - Li-accumulators

Abstract

A method of controlling a cycling pressure of a secondary battery can include assembling the secondary battery by stacking a cathode, a separator, and an anode in order; activating the secondary battery by applying a pressure of about 5 MPa or less; and cycling the secondary battery by applying the pressure of about 5 MPa or less.

IPC Classes  ?

• H01M 10/04 - Construction or manufacture in general
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
• H01M 10/44 - Methods for charging or discharging
• H01M 50/105 - Pouches or flexible bags

Abstract

Provided is a battery assembly according to example embodiments. The battery assembly includes a cell stack with first to third pouch type battery cells, and a first bus bar assembly. The first bus bar assembly includes a first bus bar, a second bus bar, and a first integrated circuit including a first sensing bar configured to measure electric potentials of a second negative electrode lead of the second pouch type battery cell and a third positive electrode lead of the third pouch type battery cell. A thickness of the first sensing bar is less than a thickness of the first bus bar.

IPC Classes  ?

• H01M 50/503 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
• H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
• H01M 50/505 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing comprising a single busbar

Abstract

The battery module according to the present disclosure includes a cell block assembly including a plurality of cells, a bottom plate disposed on a first surface of the cell block assembly, a frame surrounding a second surface opposite to the first surface and a side surface of the cell block assembly, and a pair of end plates disposed on each of front and rear surfaces of the cell block assembly, respectively.

IPC Classes  ?

• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
• H01M 10/613 - Cooling or keeping cold
• H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
• H01M 10/6554 - Rods or plates

Abstract

An easy-to-disassemble battery pack is configured to have a structure in which an insulating film is added between a thermal resin and a heat sink such that a lower part of the battery pack is separable from a battery cell while the lower part of the battery pack is fixed in tight contact with the battery cell for heat transfer.

IPC Classes  ?

• H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
• H01M 10/6551 - Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
• H01M 50/258 - Modular batteriesCasings provided with means for assembling

Abstract

A battery module reduces the risk of secondary ignition or explosion and increases durability against external impacts. The battery module includes a plurality of secondary batteries respectively having a gas venting portion for discharging a gas generated therein to the outside at a predetermined pressure and arranged in a front and rear direction in two rows; and a cooling member including a body portion interposed between two rows of the plurality of secondary batteries and having a size corresponding to left and right sides of the plurality of secondary batteries, and a gas discharge portion provided to at least one of an upper portion and a lower portion of the body portion and having a gas discharge passage elongated from a front end to a rear end of the body portion.

IPC Classes  ?

• H01M 10/6557 - Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
• H01M 10/613 - Cooling or keeping cold
• H01M 10/625 - Vehicles
• H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
• H01M 50/325 - Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
• H01M 50/35 - Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
• H01M 50/505 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing comprising a single busbar
• H01M 50/507 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules

Abstract

An apparatus for manufacturing a dry electrode powder according to one embodiment of the present invention comprises: a drying chamber for manufacturing a dry electrode powder by drying a wet electrode slurry; and a spray unit for spraying the electrode slurry into the drying chamber, wherein the inner wall surface of the drying chamber may include a plurality of protrusions.

IPC Classes  ?

• H01M 4/04 - Processes of manufacture in general
• F26B 9/06 - Machines or apparatus for drying solid materials or objects at rest or with only local agitationDomestic airing cupboards in stationary drums or chambers
• F26B 25/12 - Walls or sidesDoors
• F26B 25/00 - Details of general application not covered by group or

Abstract

A battery data analysis server according to one embodiment disclosed in the present document comprises: a first communication unit for receiving battery data from a plurality of vehicles; an analysis unit for determining target vehicles driven on a target date from among the plurality of vehicles, analyzing each piece of the battery data corresponding to each of the target vehicles, and generating daily data on the basis of the analysis result; a data lake for storing the daily data; a message queue for acquiring, in real time, data information including the number of pieces of daily data stored in the data lake; a storage unit for receiving and storing at least some of the daily data from the data lake; and a scheduler for checking a load state according to data processing of the storage unit, and storing the daily data in the storage unit on the basis of the load state.

IPC Classes  ?

• G06Q 50/40 - Business processes related to the transportation industry
• G06Q 50/10 - Services
• G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
• B60L 58/10 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries

Abstract

According to some embodiments disclosed herein, a battery management apparatus includes: a sensor configured to collect battery data from a battery to be diagnosed at intervals of a first time period whenever the battery to be diagnosed enters an idle state; and a controller configured to determine, during the first time period, a short-term change of the battery to be diagnosed on the basis of current battery data measured in a current idle state, determine a long-term change between adjacent idle states of the battery to be diagnosed on the basis of a difference between previous battery data measured in a previous idle state and the current battery data, and diagnose a state of the battery to be diagnosed on the basis of the short-term change and the long-term change.

IPC Classes  ?

• G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
• G01R 31/385 - Arrangements for measuring battery or accumulator variables
• G01R 31/3835 - Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
• G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
• G01R 19/10 - Measuring sum, difference, or ratio
• G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
• G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
• H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte

Abstract

The present invention is characterized in that negative active material comprises silicon-based active material, the specific surface area of which is 5 m2/g or greater, the silicon-based active material being porous with internal pores, having tap density of 0.2-0.8 g/cm3, comprising at least one selected from the group consisting of SiOx (x=0) and SiOx (0

IPC Classes  ?

• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 10/052 - Li-accumulators
• C01B 33/02 - Silicon
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The positive electrode slurry of the present invention is a positive electrode slurry for manufacturing a positive electrode for a lithium secondary battery. The positive electrode slurry comprises: a positive electrode active material; a conductive material; a binder; an aliphatic organic acid having 5 or less carbon atoms; and a solvent. The positive electrode slurry contains at least 0.02 parts by weight and less than 0.1 parts by weight of the aliphatic organic acid on the basis of 100 parts by weight of the total solid content of the positive electrode active material, the conductive material, the binder, and the aliphatic organic acid. The positive electrode slurry has a viscosity of 5,000-27,500 cP at room temperature.

IPC Classes  ?

• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

Provided are a battery cell stack assembly and a battery pack comprising same. The battery cell stack assembly according to one aspect of the present specification comprises: cell stacks in which a plurality of battery cells are vertically stacked so that the leads are disposed on at least one of the sides, one side or the other side, in a horizontal first direction; and a cooling plate disposed between the plurality of battery cells, wherein the cell stacks, multiply provided, are arrayed in a horizontal second direction intersecting the horizontal first direction, and the cooling plate extends in the horizontal second direction so as to pass over the plurality of cell stacks arranged in the horizontal second direction.

IPC Classes  ?

• H01M 10/6557 - Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
• H01M 10/613 - Cooling or keeping cold
• H01M 10/6567 - Liquids
• H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
• H01M 50/367 - Internal gas exhaust passages forming part of the battery cover or caseDouble cover vent systems

Abstract

The present invention relates to a battery module comprising: a plurality of battery cells; an elastic member coupled to an end portion of at least some of the plurality of battery cells and configured to undergo shape deformation by external pressure; and a fixing member configured to press the elastic member from an outer side thereof.

IPC Classes  ?

• H01M 50/264 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
• H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains

Abstract

The present invention provides a battery pack, a structure thereof, and a method for manufacturing same, the battery pack comprising: a battery module; a pack housing defining an inner space in which the battery module is accommodated; a first valve provided in the pack housing to selectively communicate the inside and the outside of the pack housing; and a support for supporting the pack housing from the inside, wherein the pack housing is sealed such that gas cannot flow in and out while the first valve is closed.

IPC Classes  ?

• H01M 50/24 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
• H01M 50/317 - Re-sealable arrangements
• H01M 50/291 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
• H01M 50/271 - Lids or covers for the racks or secondary casings
• H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
• H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains

Abstract

Provided are a secondary battery having high sealing reliability and a sealing device which is for manufacturing the secondary battery and capable of reducing tact time. A secondary battery according to the present invention includes a battery case which has embedded therein an electrode assembly having electrode leads protruding therefrom and which includes a sealing portion structured to include a sealed outer periphery portion. The sealing portion includes: a first sealing portion at the electrode lead side of the battery case; and a second sealing portion at the electrode lead side of the battery case, wherein the first sealing portion and the second sealing portion each include one end and the other end in the protruding direction of the electrode leads, and the other end of the second sealing portion extends in a direction opposite to the protruding direction of the electrode leads and further than the other end of the first sealing portion.

IPC Classes  ?

• H01M 50/184 - Sealing members characterised by their shape or structure
• H01M 50/186 - Sealing members characterised by the disposition of the sealing members
• H01M 50/172 - Arrangements of electric connectors penetrating the casing
• H01M 50/183 - Sealing members
• B29C 65/00 - Joining of preformed partsApparatus therefor
• H01M 50/178 - Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag cells
• H01M 50/105 - Pouches or flexible bags
• B29L 31/00 - Other particular articles

Abstract

The present invention relates to a contact resistance abnormality diagnosis method and a contact resistance abnormality diagnosis system, the method comprising steps in which: a plurality of first contact resistance values for a first connector coupling body at a plurality of first time points is received from a plurality of battery swapping systems (BSSs) when a battery connector of a battery pack is coupled to a plurality of system connectors of the plurality of BSSs by the first connector coupling body at the plurality of first time points; a plurality of second contact resistance values for a second connector coupling body at a plurality of second time points is received from a plurality of vehicles when the battery connector is coupled to a plurality of vehicle connectors of the plurality of vehicles by the second connector coupling body at the plurality of second time points; a central server generates a log table by sorting the plurality of first and second contact resistance values in time order of the plurality of first and second time points; and the states of the battery connector, the plurality of system connectors, and the plurality of vehicle connectors are determined on the basis of the log table.

IPC Classes  ?

• G01R 31/66 - Testing of connections, e.g. of plugs or non-disconnectable joints
• G01R 27/20 - Measuring earth resistanceMeasuring contact resistance of earth connections, e.g. plates
• G01R 19/10 - Measuring sum, difference, or ratio
• G01R 27/08 - Measuring resistance by measuring both voltage and current
• B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
• B60L 53/80 - Exchanging energy storage elements, e.g. removable batteries

Abstract

A battery module according to one embodiment of the present invention comprises: a battery cell stack in which a plurality of battery cells are stacked; a module frame for accommodating the battery cell stack; and a phase change material layer located between the battery cell stack and the module frame. The phase change material layer comprises a phase change material and has a mesh structure. Venting holes are formed in the module frame.

IPC Classes  ?

• H01M 50/375 - Vent means sensitive to or responsive to temperature
• H01M 50/30 - Arrangements for facilitating escape of gases
• H01M 50/383 - Flame arresting or ignition-preventing means
• H01M 50/502 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing
• H01M 10/658 - Means for temperature control structurally associated with the cells by thermal insulation or shielding
• H01M 50/271 - Lids or covers for the racks or secondary casings
• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells

Abstract

A battery diagnosis apparatus according to an embodiment disclosed in the present document may comprise: a slave BMS for generating unit state information by measuring the state of a battery unit; a management unit for generating pack state information by measuring the state of a battery pack, and comprising a control unit for controlling an operation of a relay related to power supply of the battery pack on the basis of at least one of the unit state information and the pack state information; and a master BMS for receiving the unit state information and the pack state information from the management unit, and monitoring battery cells included in at least one of the battery unit and the battery pack on the basis of at least one of the unit state information and the pack state information.

IPC Classes  ?

• G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
• G01R 31/385 - Arrangements for measuring battery or accumulator variables
• G01R 31/371 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with remote indication, e.g. on external chargers
• G01R 27/02 - Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
• G08C 17/02 - Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
• H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells

Abstract

The present invention relates to a cathode active material for an all-solid-state battery, a cathode, and an all-solid-state battery comprising same. More specifically, the cathode active material according to the present invention has formed on the surface thereof a particle layer coated with lithium titanium oxide particles, so that side reactions between the cathode active material and sulfide-based solid electrolyte particles in the cathode are suppressed due to the particle layer, and thus the all-solid-state battery can be stably charged and discharged.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 10/0562 - Solid materials
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The pouch cutting device according to the present invention is configured to cut a pouch including a cup portion and a side portion extending from the cup portion, and comprises: a cutter including a blade portion having a sectional area decreased toward the end portion thereof so as to cut the side portion; and a guide provided to be positioned adjacent to the blade portion so as to hold the side portion while the cutter cuts the side portion.

IPC Classes  ?

• B26D 1/09 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type with a plurality of cutting members
• B26D 7/01 - Means for holding or positioning work
• B26D 7/00 - Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
• H01M 4/04 - Processes of manufacture in general

Abstract

The present invention relates to an all-solid-state battery comprising a positive electrode, a solid electrolyte layer, a coating layer, and a negative electrode current collector, wherein the coating layer comprises amorphous carbon, the amorphous carbon comprises nitrogen-containing amorphous carbon, and the nitrogen content (atomic %) contained in the coating layer is in the range of 0.5% to 7%. The all-solid-state battery according to the present invention may have an excellent capacity retention rate according to cycles during high-rate charging and discharging.

IPC Classes  ?

• H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 4/40 - Alloys based on alkali metals
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
• H01M 10/052 - Li-accumulators
• H01M 10/0562 - Solid materials
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to an electrode separation device, an electrode transfer device including the electrode separation device, and an electrode transfer method. The electrode separation device includes: a plurality of adsorption units for respectively adsorbing two or more points on one surface of an electrode; a vibration control unit for applying vibration to the electrode; and a stretching unit horizontally moving at least one of the adsorption units toward or away from at least one of the remaining adsorption units to unfold the electrode adsorbed to the adsorption unit.

IPC Classes  ?

• B65H 3/08 - Separating articles from piles using pneumatic force
• B65H 3/46 - Supplementary devices or measures to assist separation or prevent double feed
• B65H 1/04 - Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile
• H01M 10/04 - Construction or manufacture in general

Abstract

A battery swapping station (BSS) management system, according to one embodiment disclosed in the present document, may comprise: a connection module connected to a battery pack to monitor a state of the battery pack; and a software defined networking (SDN) controller for managing a connection state between the battery pack and the connection module on the basis of data related to the battery pack and received from the connection module.

IPC Classes  ?

• G06Q 50/40 - Business processes related to the transportation industry
• G06Q 50/10 - Services
• B60L 53/60 - Monitoring or controlling charging stations
• B60L 53/80 - Exchanging energy storage elements, e.g. removable batteries
• B60L 58/10 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
• H04L 43/20 - Arrangements for monitoring or testing data switching networks the monitoring system or the monitored elements being virtualised, abstracted or software-defined entities, e.g. SDN or NFV
• H04L 43/0811 - Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
• H04L 49/00 - Packet switching elements

Abstract

Provided is a current collecting plate that is connected to an electrode tab provided at one end among the two ends of the electrode assembly in the axial direction, wherein the one end is inserted into a can while facing the bottom thereof. The current collecting plate comprises: a terminal joint part that has one side surface joined to a cap, the bottom of the can, or an electrode terminal; an electrode joint part that surrounds the terminal joint part from the outside of the terminal joint part in the radial direction and has the other side connected to the electrode tab of the electrode assembly; elastic connection parts that are disposed between the electrode joint part and the terminal joint part and electrically connect the electrode joint part and the terminal joint part; and an opening that is disposed between the elastic connection parts adjacent in the circumferential direction and separates the electrode joint part and the terminal joint part in the radial direction or the axial direction.

IPC Classes  ?

• H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
• H01M 10/04 - Construction or manufacture in general
• H01M 50/179 - Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for cells having curved cross-section, e.g. round or elliptic
• H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic

Abstract

The present invention relates to a battery core module comprising a battery unit and an electrical connection assembly. The battery unit includes a battery body, a first electrode, and a second electrode, wherein the battery body has an end portion, and the first electrode and the second electrode are disposed in the end portion. The electrical connection assembly is disposed in the end portion, and includes a first conductive element, a second conductive element, a third conductive element, a thermal cutoff element, and an insulating adhesive. The insulating adhesive covers a part of the first conductive element, a part of the second conductive element, and a part of the third conductive element, and the thermal cutoff element is connected between the second conductive element and the third conductive element. The first conductive element is connected to the first electrode, and the second conductive element is connected to the second electrode.

IPC Classes  ?

• H01M 50/502 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing
• H01M 50/519 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing comprising printed circuit boards [PCB]
• H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
• C09J 9/00 - Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks
• C09J 7/22 - PlasticsMetallised plastics

Abstract

The present invention relates to a battery module capable of preventing or delaying a loss of a connector due to flame generated therein to delay thermal propagation to the outside. A battery module according to the present invention may include cell assemblies, each of which includes a plurality of cells, a busbar frame on which a busbar configured to electrically connect the cell assemblies to each other is disposed, an endplate disposed on each of both ends of the cell assembly to cover the busbar frame, a circuit board that is in contact with the busbar so as to be electrically connected to the cell assembly, a connector configured to electrically connect the circuit board to the outside, and a protective plate disposed between the circuit board and the connector to protect the connector from being deformed due to heat.

IPC Classes  ?

• H01M 50/24 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
• H01M 50/503 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
• H01M 50/519 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing comprising printed circuit boards [PCB]
• H01R 13/533 - Bases or cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure

Abstract

An electrode assembly, a battery, and a battery pack and a vehicle comprising same are disclosed. The electrode assembly comprises a first electrode, a second electrode, and a separator interposed therebetween that are wound around a winding axis such that a core and an outer circumferential surface are defined, wherein the first electrode includes: a first active material part coated with an active material layer in the winding direction; and a first non-coated part which is not coated with the active material layer and which is exposed to the outside of the separator, the first non-coated part includes a plurality of segmental pieces that can be independently bent, the plurality of segmental pieces are defined as electrode tabs bent in the radius direction of the electrode assembly, and at least a partial region of the first non-coated part including the plurality of segmental pieces can include a cut-off portion extending in one direction parallel to the winding direction.

IPC Classes  ?

• H01M 10/04 - Construction or manufacture in general
• H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
• H01M 50/131 - Primary casingsJackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
• H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
• H01M 50/167 - Lids or covers characterised by the methods of assembling casings with lids by crimping
• H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
• H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
• H01M 50/593 - SpacersInsulating plates

Abstract

A separator for an electrochemical device includes a porous polymer substrate; a first coating layer provided on at least one surface of the porous polymer substrate and containing a first polymer resin of a first solubility in an electrolyte; and a second coating layer provided on the first coating layer and including a second polymer resin of a second solubility in the electrolyte, and inorganic particles, wherein the first solubility is higher than the second solubility in the electrolyte, and the separator is provided on a negative electrode containing a silicon (Si)-based active material.

IPC Classes  ?

• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 10/052 - Li-accumulators
• H01M 10/0566 - Liquid materials
• H01M 50/411 - Organic material
• H01M 50/42 - Acrylic resins
• H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
• H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
• H01M 50/457 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers

Abstract

A pouch type battery cell according to an embodiment of the present invention may include an electrode assembly accommodated between a pair of cases, each of which includes a first resin layer constituting the innermost layer, a second resin layer constituting the outermost layer, and a metal layer stacked between the first and second resin layers. The pouch type battery cell may include a cup portion, which is provided in at least one of the pair of cases and accommodates the electrode assembly, an insulation sealing portion, at which the first resin layers of the pair of cases are sealed to each other, a folded portion, which is folded so that an edge of one case of the pair of cases surrounds an edge of the other case, and a metal sealing portion which is provided at the folded portion and at which the metal layers of the pair of cases are sealed to each other.

IPC Classes  ?

• H01M 50/105 - Pouches or flexible bags
• H01M 50/119 - Metals
• H01M 50/126 - Primary casingsJackets or wrappings characterised by the material having a layered structure comprising three or more layers
• H01M 50/129 - Primary casingsJackets or wrappings characterised by the material having a layered structure comprising three or more layers with two or more layers of only organic material
• H01M 50/178 - Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag cells
• H01M 50/191 - Inorganic material

Abstract

The present specification discloses a positive electrode including a positive electrode active material layer, wherein the positive electrode active material layer includes a 5 positive electrode active material and a conductive agent, wherein the positive electrode active material includes a first lithium composite transition metal oxide in a form of a single particle composed of one primary particle or a pseudo-single particle as an aggregate of 10 or less primary particles, and 10 the conductive agent includes few-walled carbon nanotubes and single-walled carbon nanotubes, wherein the number of walls of the few-walled carbon nanotubes is in a range of 2 to 7, and a secondary battery including the positive electrode.

IPC Classes  ?

• C01B 32/158 - Carbon nanotubes
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers

Abstract

A temperature sensing member is located between two adjacent battery cells, and includes a main body part arranged in parallel to one surface of the battery cell, and a temperature measuring unit mounted on the main body part and measuring the temperature of the battery cell. The main body part has a plate shape. The temperature measuring unit is inserted into one side of the main body part.

IPC Classes  ?

• H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
• G01K 1/143 - SupportsFastening devicesArrangements for mounting thermometers in particular locations for measuring surface temperatures

Abstract

A polymer solid electrolyte and a method for preparing the same are provided. The method includes preparing a polymer solid electrolyte, defining a correlation between an added amount of a lithium salt and ionic conductivity of the polymer solid electrolyte, and adjusting the added amount of the lithium salt depending on the ionic conductivity of the prepared solid electrolyte, and is thereby capable of preparing a polymer solid electrolyte having high ionic conductivity through a large-capacity continuous process.

IPC Classes  ?

• H01M 10/0565 - Polymeric materials, e.g. gel-type or solid-type

Abstract

Disclosed are an electrode, a secondary battery comprising the same and an energy storage system, the electrode comprising: an electrode current collector; and an electrode layer on the electrode current collector, the electrode layer comprising an active material, a conductive material and a fluorine-containing binder, wherein the electrode layer has a quantified binder ratio (QBR) of 1.1 or less, and the QBR is defined as the following equation: Disclosed are an electrode, a secondary battery comprising the same and an energy storage system, the electrode comprising: an electrode current collector; and an electrode layer on the electrode current collector, the electrode layer comprising an active material, a conductive material and a fluorine-containing binder, wherein the electrode layer has a quantified binder ratio (QBR) of 1.1 or less, and the QBR is defined as the following equation: QBR = Bs / Bf . , Disclosed are an electrode, a secondary battery comprising the same and an energy storage system, the electrode comprising: an electrode current collector; and an electrode layer on the electrode current collector, the electrode layer comprising an active material, a conductive material and a fluorine-containing binder, wherein the electrode layer has a quantified binder ratio (QBR) of 1.1 or less, and the QBR is defined as the following equation: QBR = Bs / Bf . , Bs denotes an average fluorine content in an electrode layer surface region within 15% of a total thickness of the electrode layer from an outermost surface of the electrode layer, and Bf denotes an average fluorine content in an electrode layer bottom region within 15% of the total thickness of the electrode layer from an interface between the electrode layer and the current collector.

IPC Classes  ?

• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/04 - Processes of manufacture in general
• H01M 10/052 - Li-accumulators

Abstract

An automatic transportation control method includes moving, by an automatic guidance vehicle, to a first node which is an initial reference location according to an instruction from an automatic transportation control apparatus; moving, by the automatic guidance vehicle, to a second node which is a stand-by location before entering a production facility from the first node; moving, by the automatic guidance vehicle, to a third node for docking to the production facility from the second node; and receiving, by the automatic guidance vehicle, the changed location coordinate value of the second node from the automatic transportation control apparatus, and traveling based on the changed location coordinate value of the second node when the second node is changed according to a work location change of the production facility.

IPC Classes  ?

• G05D 1/667 - Delivering or retrieving payloads
• G05D 1/229 - Command input data, e.g. waypoints
• G05D 1/661 - Docking at a base station
• G05D 105/28 - Specific applications of the controlled vehicles for transportation of freight
• G05D 107/70 - Industrial sites, e.g. warehouses or factories

Abstract

Provided is a battery pack and a vehicle including the same. A battery pack according to an embodiment of the present disclosure includes a plurality of pouch-type battery cells, a pack case having an inner space in which the plurality of pouch-type battery cells are accommodated, and a plurality of cell covers provided in the inner space of the pack case to at least partially surround at least some of the plurality of pouch-type battery cells, each of the plurality of cell covers being each to have a dimension that is changeable in a width direction.

IPC Classes  ?

• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
• H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
• H01M 50/383 - Flame arresting or ignition-preventing means
• H01M 50/507 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules

Abstract

A button-type secondary battery has a diameter greater than a height thereof. The button type secondary battery includes a can body defining an accommodation space therein and having an opened upper end; an electrode assembly accommodated in the accommodation space of the can body; and a top cap assembly configured to cover the upper end of the can body and coupled to the can body. The top cap assembly includes a base plate having a flat plate shape and bent upward from a circumferential area thereof; an electrode terminal having a flat plate shape to be seated on an upper portion of the base plate, wherein the electrode terminal comprises a protrusion protruding downward from a central area thereof; and an insulating member between the base plate and the electrode terminal.

IPC Classes  ?

• H01M 50/169 - Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
• H01M 50/109 - Primary casingsJackets or wrappings characterised by their shape or physical structure of button or coin shape
• H01M 50/153 - Lids or covers characterised by their shape for button or coin cells
• H01M 50/531 - Electrode connections inside a battery casing
• H01M 50/559 - Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
• H01M 50/586 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes

Abstract

A pouch-type battery cell includes an electrode assembly configured such that positive electrode plates and negative electrode plates are repeatedly arranged to face each other with a separator interposed therebetween; an exterior pouch case configured to store the electrode assembly to be sealed; and electrode leads connected to a bundle of electrode tabs extending from the electrode assembly inside the exterior pouch case and protruding to the outside of the exterior pouch case. The electrode leads include a first electrode lead and a second electrode lead that face each other, extend in the same direction, and have the same polarity. A rupture sealing member is provided between the first electrode lead and the second electrode lead such that one side thereof is bonded to the first electrode lead and the other side is bonded to the second electrode lead.

IPC Classes  ?

• H01M 50/105 - Pouches or flexible bags
• H01M 10/04 - Construction or manufacture in general
• H01M 50/178 - Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag cells
• H01M 50/186 - Sealing members characterised by the disposition of the sealing members
• H01M 50/54 - Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
• H01M 50/55 - Terminals characterised by the disposition of the terminals on the cells on the same side of the cell

Abstract

A battery pack with a double cover includes a plurality of battery modules; and a case accommodating the battery modules, the case includes the double cover disposed at an upper portion of the case, and the double cover includes a first lid disposed above the battery module and having a through hole; and a second lid above the first lid and spaced apart from the first lid.

IPC Classes  ?

• H01M 50/367 - Internal gas exhaust passages forming part of the battery cover or caseDouble cover vent systems
• H01M 50/271 - Lids or covers for the racks or secondary casings
• H01M 50/289 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs

Abstract

An energy storage system includes a rack container having a predetermined accommodation space, a plurality of battery racks disposed in the rack container and respectively having a coolant tank in which a predetermined coolant is contained, and at least one flux supplement unit configured to connect the coolant tanks of the plurality of battery racks.

IPC Classes  ?

• H01M 10/6567 - Liquids
• H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
• H01M 10/613 - Cooling or keeping cold
• H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange

Abstract

A simulation apparatus for secondary battery production is provided. The simulation apparatus for secondary battery production comprises a memory configured to store at least one instruction and at least one processor configured to execute the at least one instruction stored in the memory. The at least one instruction includes instructions for executing an apparatus operating unit including a 3D coater related to secondary battery production, a facility operating unit including a plurality of adjustment parameters for determining operation of the 3D coater, and a quality checking unit including quality information related to quality of a material produced by the 3D coater.

IPC Classes  ?

• G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
• H01M 4/04 - Processes of manufacture in general

Abstract

An apparatus for diagnosing a battery according to one aspect of the present disclosure may include a measuring unit configured to measure a voltage value of the battery at each predetermined cycle during a battery charging process; and a processor configured to calculate a resistance value of the battery based on the measured voltage value of the battery, determine a resistance change pattern by comparing the calculated plurality of resistance values with a preset criterion profile, and determine the state of the battery based on the determined resistance change pattern.

IPC Classes  ?

• G01R 31/389 - Measuring internal impedance, internal conductance or related variables
• G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
• G01R 31/3835 - Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
• G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

A gas venting device, and a battery module and a battery pack including same has a gradually reducing cross-sectional area of a flow path in a gas discharge direction so that a greater flow rate of gas can be discharged even when a venting disc having the same area is used.

IPC Classes  ?

• H01M 50/35 - Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
• F16K 17/16 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side with fracturing member with fracturing diaphragm
• F16K 24/04 - Devices, e.g. valves, for venting or aerating enclosures for venting only
• F16K 27/00 - Construction of housingsUse of materials therefor
• H01M 50/184 - Sealing members characterised by their shape or structure
• H01M 50/342 - Non-re-sealable arrangements

Abstract

A method for sealing a secondary battery, according to the present invention, is a method for sealing a battery case and an electrode lead of the secondary battery. The method comprises the steps of: providing a heater on the front surface of a sealer; providing an electrode lead between an upper sealer and a lower sealer included in the sealer; heating the electrode lead by using the heater; sealing the electrode lead and a battery case by using the sealer; photographing the sealer around the heater by means of a camera disposed on the front surface of the heater to obtain shape information; measuring the temperature of the sealer around the heater by using a temperature sensor to obtain temperature information; obtaining temperature-dependent thermal expansion data of the sealer by using the shape information, the temperature information, and material information of the sealer; and measuring the temperature of the electrode lead by using a temperature sensor, and then predicting the thermal expansion value of the sealer at the electrode lead covered by the heater by using the thermal expansion data.

IPC Classes  ?

• B29C 65/00 - Joining of preformed partsApparatus therefor
• B29C 65/30 - Electrical means
• B29C 65/18 - Joining of preformed partsApparatus therefor by heating, with or without pressure using heated tool
• H04N 7/18 - Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
• G01B 11/16 - Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
• H01M 10/04 - Construction or manufacture in general

Abstract

A battery pack is disclosed. The battery pack according to an embodiment of the present invention comprises: a case having an open upper surface and providing an inner space; battery cells accommodated in the case; a pack cover coupled to the upper surface of the case and covering the battery cells; and venting guides opening and closing gaps between the pack cover and the battery cells.

IPC Classes  ?

• H01M 50/383 - Flame arresting or ignition-preventing means
• H01M 50/271 - Lids or covers for the racks or secondary casings
• H01M 50/317 - Re-sealable arrangements
• H01M 50/289 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs
• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
• H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains

Abstract

A battery assembly is disclosed. A battery assembly according to an embodiment of the present invention comprises: a first battery cell which comprises a first receiving part equipped with an electrode assembly, a first sealing part extending forward from the first receiving part, and a first electrode lead protruding forward from the first sealing part; a second battery cell which comprises a second receiving part equipped with an electrode assembly, a second sealing part extending forward from the second receiving part, and a second electrode lead protruding forward from the second sealing part and physically connected to the first electrode lead; and a frame which is positioned between the first electrode lead and the second electrode lead and which has a lead support part for supporting a portion at which the first electrode lead and the second electrode lead are connected.

IPC Classes  ?

• H01M 50/242 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
• H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
• H01M 50/531 - Electrode connections inside a battery casing
• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells

Abstract

A battery swapping device, according to one embodiment disclosed in the present document, may comprise: an insertion unit comprising a plurality of charging ports through which a battery can be inserted or discharged; a charging unit comprising at least one charger for charging a battery inserted into the insertion unit; and a control unit for acquiring authentication information associated with the inserted battery and controlling a connection between the charging unit and the insertion unit on the basis of an authentication result of the battery and the state of the battery swapping device.

IPC Classes  ?

• B60L 53/80 - Exchanging energy storage elements, e.g. removable batteries
• B60L 53/65 - Monitoring or controlling charging stations involving identification of vehicles or their battery types
• B60L 53/62 - Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge

Abstract

The present invention relates to a method for measuring impedance of a battery cell and an impedance measurement system for providing the method. The impedance measurement system of the present invention comprises: a user input/output unit for receiving, from a user, test input values including a start frequency, an end frequency, and the number of frequencies; a user control unit for calculating a plurality of request frequencies corresponding to the number of frequencies on the basis of the test input values, and determining a plurality of test frequencies by matching a plurality of testable frequencies stored in a lookup table with the plurality of request frequencies; and a user communication unit for transmitting the plurality of test frequencies to a test device that is a device for measuring impedance of a battery cell.

IPC Classes  ?

• G01R 31/389 - Measuring internal impedance, internal conductance or related variables
• G01R 23/02 - Arrangements for measuring frequency, e.g. pulse repetition rateArrangements for measuring period of current or voltage
• G01R 23/00 - Arrangements for measuring frequenciesArrangements for analysing frequency spectra
• G01R 31/371 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with remote indication, e.g. on external chargers
• G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables

Abstract

DsiGsisi) of the intensity of the G band to the intensity of the Si peak is greater than 5 and less than 50, and the Si peak is between 495 cm-1and 515 cm-1.

IPC Classes  ?

• C01B 32/00 - CarbonCompounds thereof
• C01B 33/02 - Silicon
• C01B 33/035 - Preparation by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material by decomposition or reduction of gaseous or vaporised silicon compounds in the presence of heated filaments of silicon, carbon or a refractory metal, e.g. tantalum or tungsten, or in the presence of heated silicon rods on which the formed silicon is deposited, a silicon rod being obtained, e.g. Siemens process
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
• H01M 4/583 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 10/052 - Li-accumulators

Abstract

The present invention relates to a secondary battery comprising: an electrode assembly on which a positive electrode, a separator, and a negative electrode are wound; a battery case of which one surface is open and the other surface has a through-hole, and which includes a space in which the electrode assembly is accommodated; an electrode terminal which is in contact with the electrode assembly and exposed to the outside through the through-hole; a gasket positioned between the battery case and the electrode terminal; and a top cap coupled to the opening of the one surface of the battery case, wherein the gasket has a first leakage detection member positioned on the surface facing the battery case.

IPC Classes  ?

• H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
• G01M 3/04 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
• H01M 50/559 - Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
• H01M 50/552 - Terminals characterised by their shape
• H01M 50/186 - Sealing members characterised by the disposition of the sealing members

Abstract

The present invention relates to a cathode active material, a method for manufacturing same, and a lithium secondary battery comprising same. Specifically, the cathode active material of the present invention includes: a lithium-nickel-based oxide in which the nickel content accounts for 70 mol% or more of the total metal elements excluding lithium; a first coating layer formed on the lithium-nickel-based oxide; and a second coating layer formed on the first coating layer, wherein the first coating layer contains a coating element M1 (where M1 is at least one selected from Ni, Co, and Al) and the second coating layer contains a coating element M2 (where M2 is Ti), and the titanium content in the second coating layer, measured by X-ray photoelectron spectroscopy (XPS), may be in the range of 0.7 atomic% to 3.3 atomic% relative to the total content of Ni, Co, Li, and oxygen (O) in the lithium-nickel-based oxide, as measured by X-ray photoelectron spectroscopy (XPS).

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• C01G 53/00 - Compounds of nickel
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to a method for recycling a positive electrode active material and a recycled positive electrode active material produced therefrom and, more specifically, to a method for recycling a positive electrode active material and a recycled positive electrode active material produced therefrom, the method comprising the steps of: (i) heat-treating waste positive electrodes having a positive electrode active material layer formed on a current collector to thermally decompose a binder and a conductive material in the positive electrode active material layer, thereby separating the current collector from the positive electrode active material layer, and recovering a positive electrode active material in the positive electrode active material layer; and (ii) (ii-1) adding calcium or a calcium compound to the recovered positive electrode active material and re-heating the resultant mixture at 600-750°C; or (ii-2) shear-washing the recovered positive electrode active material with a washing solution and then adding a lithium precursor and calcium or a calcium compound and annealing the resultant mixture.

IPC Classes  ?

• H01M 10/54 - Reclaiming serviceable parts of waste accumulators
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• C22B 1/02 - Roasting processes
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

A molding apparatus according to an embodiment of the present invention can mold a cup portion into a pouch film. The molding apparatus may comprise: a die having a molding space; a stripper for fixing the pouch film on the upper side of the die; a first punch selectively disposed in the molding space; and a pressing unit for applying pneumatic pressure or hydraulic pressure to the pouch film such that the pouch film is partially stretched into the molding space. The first punch can include: a support surface defining the upper surface of the first punch; and a recessed portion recessed downward from the support surface.

IPC Classes  ?

• B29C 51/08 - Deep-drawing or matched-mould forming, i.e. using mechanical means only
• B29C 51/26 - Component parts, details or accessoriesAuxiliary operations
• B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
• H01M 50/105 - Pouches or flexible bags
• B29L 31/00 - Other particular articles

Abstract

A battery assembly is disclosed. The battery assembly according to an embodiment of the present invention comprises: a main frame providing an inner space and having an open top; a partition plate positioned inside the main frame and dividing the inner space into upper and lower spaces; battery cells vertically penetrating the partition plate; a sub-frame positioned inside the main frame and coupled to the top of the partition plate; and a top cover covering the upper space and coupled to the sub-frame.

IPC Classes  ?

• H01M 50/207 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
• H01M 50/289 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs
• H01M 50/271 - Lids or covers for the racks or secondary casings
• H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
• H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
• H01M 10/613 - Cooling or keeping cold
• H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
• H01M 10/6567 - Liquids

Abstract

The present application relates to a negative active material, a method for manufacturing same, a negative electrode composition, a negative electrode comprising same for a lithium secondary battery, and a lithium secondary battery comprising the negative electrode.

IPC Classes  ?

• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• C01B 33/021 - Preparation
• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to an electrode mixture film comprising an electrode active material, a conductive material, and a fibrillatable binder, the electrode mixture film comprising: side portions positioned at respective ends in the width direction of the electrode mixture film; and a central portion disposed between the side portions, wherein the crystallinity of the binder included in the central portion is higher than the crystallinity of the binder included in the side portions.

IPC Classes  ?

• H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
• H01M 4/139 - Processes of manufacture
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/04 - Processes of manufacture in general
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to a method for manufacturing an electrode for a lithium secondary battery, an electrode manufactured therefrom, and a lithium secondary battery including an electrode, the method including the steps of: preparing a transfer laminate including a lithium metal layer, a release layer, and a base layer; and transferring the lithium metal layer and the release layer to at least one surface of an electrode active material layer so that the lithium metal layer comes into contact with the electrode active material layer, wherein two or more holes are provided on at least one surface of the lithium metal layer and the release layer transferred to the at least one surface of the electrode active material layer and a shortest distance between neighboring holes satisfies a predetermined distance, thereby reducing lithium by-products.

IPC Classes  ?

• H01M 4/1395 - Processes of manufacture of electrodes based on metals, Si or alloys
• H01M 4/04 - Processes of manufacture in general
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
• H01M 10/052 - Li-accumulators
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to an electrode supply apparatus and method, and an electrode assembly manufacturing apparatus and method.

IPC Classes  ?

• H01M 10/04 - Construction or manufacture in general
• B65H 1/14 - Supports or magazines for piles from which articles are to be separated with means for advancing the pile to present the articles to a separating device comprising positively-acting mechanical devices
• B65H 1/18 - Supports or magazines for piles from which articles are to be separated with means for advancing the pile to present the articles to a separating device controlled by height of pile
• B65H 1/04 - Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile
• B65H 3/48 - Air blast acting on edges of, or under, articles
• B65H 3/08 - Separating articles from piles using pneumatic force

Abstract

A pouch forming apparatus of the present invention comprises: a pouch forming unit for forming an accommodation unit for accommodating an electrode assembly in a pouch film; and a steam spray unit for spraying steam toward the pouch film to increase the moisture content of a resin layer included in the pouch film, thereby increasing the elongation. As a result, cracks can be prevented from occurring when the pouch film is formed.

IPC Classes  ?

• B29C 51/26 - Component parts, details or accessoriesAuxiliary operations
• B29C 51/08 - Deep-drawing or matched-mould forming, i.e. using mechanical means only
• B05B 17/06 - Apparatus for spraying or atomising liquids or other fluent materials, not covered by any other group of this subclass operating with special methods using ultrasonic vibrations
• B29C 31/00 - Handling, e.g. feeding of the material to be shaped
• B29C 51/42 - Heating or cooling
• B29B 13/00 - Conditioning or physical treatment of the material to be shaped
• B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
• H01M 50/105 - Pouches or flexible bags

Abstract

A composition for insulation coating, according to the present invention, comprises inorganic particles; a rubber-based binder; a fluorine-based binder; a dispersant; and a solvent, wherein the fluorine-based binder is contained in an amount of 7 parts by weight or less with respect to 100 parts by weight of solid content excluding the solvent. The composition for insulation coating, according to the present invention, has an increased wet thickness when applied to a current collector, so that a sliding phenomenon in which a slurry for an electrode flows down is suppressed, and thus there is an effect of remarkably reducing the sliding length of an electrode active material layer.

IPC Classes  ?

• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
• H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
• H01M 4/139 - Processes of manufacture
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• C09D 109/06 - Copolymers with styrene
• C09D 7/61 - Additives non-macromolecular inorganic
• C09D 7/20 - Diluents or solvents
• C09D 7/45 - Anti-settling agents
• C08L 27/16 - Homopolymers or copolymers of vinylidene fluoride
• C08K 3/22 - OxidesHydroxides of metals

Abstract

The present invention relates to a trimming device for making the width of an active material layer uniform in an electrode in which an electrode current collector is coated with the active material layer, and more specifically, to a trimming device which can be flexibly used by precisely adjusting a cutting depth and a cutting position. According to an embodiment of the present invention, it is possible to provide a trimming device for cutting the edges of an active material layer to make the width of the active material layer uniform in an electrode in which an electrode current collector is coated with the active material layer, the trimming device comprising: a guide roll for transporting the electrode; a cutting module including a knife for cutting the edges of the active material layer above the guide roll and the electrode in the direction in which the electrode is transported by the guide roll, and an adjustment member for adjusting the gap between the tip of the knife and the guide roll; and a horizontal frame which is disposed above the guide roll and to which the cutting module is mounted.

IPC Classes  ?

• B26D 7/26 - Means for mounting or adjusting the cutting memberMeans for adjusting the stroke of the cutting member
• B26D 1/15 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis with vertical cutting member
• B26D 5/08 - Means for actuating the cutting member to effect the cut
• B26D 5/24 - Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member and work feed mechanically connected including a metering device
• H01M 4/04 - Processes of manufacture in general

Abstract

A battery pack according to an embodiment of the present invention comprises: a pack frame to which multiple battery modules are mounted; at least one venting unit positioned on at least one side surface of the pack frame; and at least one sound extinguishing unit positioned on the upper portion of the pack frame, wherein the sound extinguishing unit generates a low-frequency wave inside the pack frame toward the venting unit.

IPC Classes  ?

• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
• H01M 50/325 - Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
• H01M 50/358 - External gas exhaust passages located on the battery cover or case
• H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
• H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
• A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
• A62C 37/38 - Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
• A62C 37/46 - Construction of the actuator

Abstract

One embodiment of the present invention provides an electrode assembly comprising: a positive electrode; a negative electrode; and a separator provided between the positive electrode and the negative electrode, wherein the dry adhesion of the separator to the negative electrode is greater than the dry adhesion of the separator to the positive electrode. One embodiment of the present invention provides a secondary battery comprising: a sealed battery case; and the electrode assembly according to the present invention inside the battery case. The electrode assembly according to the embodiment of the present invention has the effect of preventing bending of a secondary battery, comprising the electrode assembly, which could occur after activation.

IPC Classes  ?

• H01M 50/46 - Separators, membranes or diaphragms characterised by their combination with electrodes
• H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
• H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
• H01M 50/42 - Acrylic resins
• H01M 50/426 - Fluorocarbon polymers
• H01M 50/431 - Inorganic material
• H01M 50/466 - U-shaped, bag-shaped or folded
• H01M 10/04 - Construction or manufacture in general

Abstract

The present invention relates to an electrode assembly having a jelly-roll structure in which a negative electrode, a separator, and a positive electrode are wound around a core part. The negative electrode includes an active material part in which a negative electrode active material is laminated on one surface or both surfaces of a negative electrode current collector and a negative electrode uncoated part in which the negative electrode active material part is not laminated, wherein the negative electrode includes a protective tape covering at least a portion of the negative electrode uncoated part adjacent to the core part, and the cross-sectional area of the protective tape in the longitudinal direction of the negative electrode is 0.3 mm2to 0.47 mm2.

IPC Classes  ?

• H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
• H01M 50/586 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
• H01M 50/595 - Tapes
• H01M 50/531 - Electrode connections inside a battery casing
• H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic

Abstract

The present invention relates to a cylindrical secondary battery and a method for manufacturing the cylindrical secondary battery, the cylindrical secondary battery comprising: an electrode assembly in which a positive electrode plate, a negative electrode plate, and a separator interposed between the positive and negative electrode plates are wound in one direction; a battery can in which the electrode assembly is accommodated; an electrolyte injected into the battery can; and a sealing body that seals an open end of the battery can, wherein the impregnation rate of propylene carbonate (PC) into the positive electrode plate is higher than a reference rate, and a single-particle positive electrode active material is applied to the positive electrode plate.

IPC Classes  ?

• H01M 10/04 - Construction or manufacture in general
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

Disclosed are a cylindrical battery, and a battery pack and a vehicle, including same. The cylindrical battery includes: an electrode assembly in which a core and the outer periphery are defined as a first electrode and a second electrode and a separator interposed therebetween are wound around a winding axis; and a cylindrical battery housing which accommodates the electrode assembly. When a first fan-shaped region surrounded by a first straight line and a second straight line which pass through the core-side end of the first electrode and the core-side end of the second electrode, respectively, from the center of the core, and by the outer periphery is defined as a stress-vulnerable region, and a second fan-shaped region surrounded by a third straight line and a fourth straight line which pass through the outer periphery-side end of the first electrode and the outer periphery-side end of the second electrode, respectively, from the center of the core, and by the outer periphery is defined as a stress-amplification region, the electrode assembly has a wound structure in which at least the outer periphery-side end of the first electrode in the stress-amplification region is spaced apart from the inside of the stress-vulnerable region along the circumferential direction.

IPC Classes  ?

• H01M 10/04 - Construction or manufacture in general
• H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
• H01M 50/131 - Primary casingsJackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
• H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
• H01M 50/531 - Electrode connections inside a battery casing
• H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks