At least a part of a positive electrode lead (110) and at least a part of a negative electrode lead (120) are bonded to each other. A plurality of the positive electrode leads (110) and a plurality of the negative electrode leads (120) are folded back from one of a plurality of first battery cells (100a) and a plurality of second battery cells (100b) to the other of the plurality of first battery cells (100a) and the plurality of second battery cells (100b) through the at least a part of the plurality of positive electrode leads (110) and the at least a part of the plurality of negative electrode leads (120).
H01M 50/528 - Fixed electrical connections, i.e. not intended for disconnection
H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
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 50/509 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
H01M 50/516 - Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
H01M 50/548 - Terminals characterised by the disposition of the terminals on the cells on opposite sides of the cell
H01M 50/569 - Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
A battery module (10) includes a plurality of battery cells (100), a first element (210) positioned between the adjacent battery cells (100) and having thermal conductivity of less than 1.0 W/m·K, and a second element (220) positioned between the first element (210) and the battery cell (100) and having thermal conductivity of equal to or more than 10 W/m·K. The second element (220) is thermally coupled to a first portion of a housing portion (300) covering a portion of each of battery cells (100). The portion of each of battery cells (100) is thermally insulated from the first portion of the housing portion (300). Specifically, a gap is provided between the first portion of the housing portion (300) and the portion of each of battery cells (100).
H01M 10/6555 - Rods or plates arranged between the cells
H01M 10/651 - Means for temperature control structurally associated with the cells characterised by parameters specified by a numeric value or mathematical formula, e.g. ratios, sizes or concentrations
H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
H01M 10/658 - Means for temperature control structurally associated with the cells by thermal insulation or shielding
A first voltage detection device (30) detects a voltage of a lead portion (150) folded back between different battery cells (100). The first voltage detection device (30) includes a first voltage detection portion (410), a first voltage detection line (420) electrically connected to the first voltage detection portion (410), and a first holding body (300) holding the first voltage detection portion (410) and the first voltage detection line (420).
A battery cell (10) comprises: a battery element (100); an exterior member (120) accommodating the battery element (100); and a first protective tape (136a) covering at least a portion of a right sealing side (126b) of the exterior member (120).
A positive electrode (110) is a first electrode, and a negative electrode (120) is a second electrode having an area larger than that of the first electrode. A separator (130) is folded and extends through between the positive electrode (110) and the negative electrode (120) adjacent to each other. A folded portion of the separator (130) covers a portion of the negative electrode (120) on the same side in each of a plurality of battery cells (10). Specifically, the folded portion of the separator (130) covers the upper portion of the negative electrode (120) in each of the plurality of battery cells (10).
H01M 10/0583 - Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
H01M 50/30 - Arrangements for facilitating escape of gases
H01M 50/46 - Separators, membranes or diaphragms characterised by their combination with electrodes
H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
A wiring module is to be attached to multiple power storage elements. The wiring module includes a busbar connected to electrode terminals of the multiple power storage elements, a circuit board connected to the busbar with solder, and a protector configured to hold the busbar and the circuit board. The protector includes a busbar arrangement surface on which the busbar is disposed and a board arrangement surface on which the circuit board is disposed. The board arrangement surface and the busbar arrangement surface are perpendicular to each other.
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
An outer edge of a negative electrode (200) covered with a first adhesive member (410) is substantially aligned with an outer edge of a positive electrode (100) covered with the first adhesive member (410) in a direction from a stacked body (10) toward the first adhesive member (410) or a direction from the first adhesive member (410) toward the stacked body (10). Specifically, the outer edge of the negative electrode (200) covered with the first adhesive member (410) is positioned within a distance equal to or more than 0% and equal to or less than 200% of a thickness of the negative electrode (200) from the outer edge of the positive electrode (100) covered with the first adhesive member (410) in the above direction.
A temperature sensor device including a temperature sensor and an elastic member placed between the temperature sensor and a pressing body that presses the temperature sensor toward a battery cell.
G01K 1/143 - SupportsFastening devicesArrangements for mounting thermometers in particular locations for measuring surface temperatures
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
A battery module (1A) comprises battery cells (100), positive electrode bus bars (230) electrically connected to the battery cells (100), and a housing body (30A) that houses the battery cells (100) and the positive electrode bus bars (230). At least a part of the housing body (30A) has an exposed structure in which at least some of connection portions of the battery cells (100) and the positive electrode bus bars (230) are exposed toward a predetermined direction.
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 50/548 - Terminals characterised by the disposition of the terminals on the cells on opposite sides of the cell
H01M 50/588 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
A battery module includes a plurality of battery cells and a function material. The function material is located between adjacent battery cells. The function material includes an elastic particle and a binder. The elastic particle is dispersed in the binder.
A front voltage detection device (30) comprises: a holder (310); a plurality of voltage detection lines (320); and a socket (330). The plurality of voltage detection lines (320) are electrically connected to a plurality of battery cells (100). The plurality of voltage detection lines (320) are held in the holder (310). The socket (330) is electrically connected to the plurality of voltage detection lines (320). The socket (330) is provided in the holder (310).
H01M 50/569 - Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/296 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by terminals of battery packs
A battery cell (100) is provided with: a battery element (110); a packaging material (120) for sealing the battery element (110); a negative electrode terminal (134) that is electrically connected to the battery element (110) and drawn out of the packaging material (120); and a first insulation tape (140) that covers the periphery of the negative electrode terminal (134) on the packaging material (120). At least portions of the first insulation tape (140) are bonded to each other.
H01M 50/569 - Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
13.
DATA PROCESSING SYSTEM, MODEL GENERATION DEVICE, DATA PROCESSING METHOD, MODEL GENERATION METHOD, AND PROGRAM
A data processing system includes an input data processing unit, an intermediate data generation unit, and an output data generation unit. The input data processing unit acquires input data, and converts the input data according to a conversion rule. One example of the conversion rule is to increase the number of values included in the input data by adding dummy data to the input data. The intermediate data generation unit generates intermediate data by processing the input data after the conversion. The intermediate data are, for example, a plurality of rows and/or a plurality of columns of data formed of a plurality of values. The intermediate data include a significant value (i.e., a value desired to be acquired) and a value being a dummy. The output data generation unit generates output data by selecting the significant value of the intermediate data generated by the intermediate data generation unit.
A battery module includes a battery, a structure positioned at least partially around the battery, a temperature sensor positioned between the battery and the structure, and a directing portion directing a temperature detection range of the temperature sensor toward the battery.
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 10/658 - Means for temperature control structurally associated with the cells by thermal insulation or shielding
15.
ION-CONDUCTING SOLID COMPOSITION AND SOLID-STATE SECONDARY BATTERY
The purpose of the present invention is to provide an ion-conducting solid composition which exhibits both high ion conductivity and high molding processing properties and which can prevent oxidative degradation or reductive degradation of a solid electrolyte by forming an interfacial film having high oxidative/reductive degradation resistance at the surface of metallic lithium. Another purpose is to provide a solid state secondary battery which is obtained using this type of ion-conducting solid composition, has a high energy density, and has a long cycle life. The present invention is: an ion-conducting solid composition that contains at least an ion-conducting amorphous inorganic substance and an ion-conducting polymeric substance having a fluorine atom in a main chain and/or a side chain; and a solid state secondary battery that includes at least a positive electrode, a negative electrode, and an ion-conducting solid composition or ion-conducting solid composition-containing solid electrolyte, in which at least a part of the surface of the ion-conducting solid composition is coated with lithium fluoride.
H01B 1/06 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of other non-metallic substances
A wiring module is attached to an electricity storage element group including a plurality of electricity storage elements aligned. The wiring module includes: a plurality of busbars connected to electrodes of the plurality of electricity storage elements; and an insulating protector that is insulating, holds the plurality of busbars, and is attached to a case containing the electricity storage element group. The insulating protector has a positioning portion engaging with the case.
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 50/289 - 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 50/296 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by terminals of battery packs
A first voltage detection device (30A) comprises: a first voltage detection unit (310A); and a first shaft member (340A) that passes through part of the first voltage detection unit (310A). The first voltage detection unit (310A) has a first ridge (318A) that is provided to at least part of the periphery of a first through hole (312aA) in the first voltage detection unit (310A) through which the first shaft member (340A) is inserted.
H01M 50/569 - Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
A voltage detection device (300) comprises: a voltage detection unit (310) that detects the voltage of at least one battery cell (100); a right bus bar (340) in which at least one section electrically connects the at least one battery cell (100) to external equipment; and a right attachment (360) to which the right bus bar (340) is attached. The right attachment (360) is resistant to heat.
H01M 50/569 - Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
H01M 50/296 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by terminals of battery packs
19.
NEGATIVE ELECTRODE, LITHIUM ION SECONDARY BATTERY, MANUFACTURING METHOD OF NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND MANUFACTURING METHOD OF NEGATIVE ELECTRODE SHEET FOR LITHIUM ION SECONDARY BATTERY
There is provided a negative electrode (100) for a lithium ion secondary battery, in which a negative electrode active material layer (120) containing at least a negative electrode active material and a binder is formed on a current collector (110). An insulating layer (300) containing at least an insulating material and a binder is further provided on a surface of the negative electrode active material layer (120), the binder contained in the insulating layer (300) includes at least styrene-butadiene rubber and at least one selected from carboxymethyl cellulose and salts thereof, and the binder contained in the negative electrode active material layer (120) is at least one selected from polyacrylic acid and salts thereof.
DETERIORATION ESTIMATION APPARATUS, MODEL GENERATION APPARATUS, DETERIORATION ESTIMATION METHOD, MODEL GENERATION METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM
A deterioration estimation apparatus includes a storage processing unit and a calculation unit. The storage processing unit acquires a plurality of models from a model generation apparatus, and stores the models in a model storage unit. A plurality of models are generated by performing machine-learning on training data, the training data using, as input values, measurement data for training indicating a result of measuring a state of a storage battery when the number of charge and discharge times is αi to αj (where j≥i), and using, as a target value, SOH indicating a deterioration state of the storage battery when the number of charge and discharge times is β (where β>αj). The calculation unit uses a plurality of models stored in a model storage unit to calculate an estimation result of transition of SOH of a storage battery managed by the deterioration estimation apparatus.
G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
G01R 31/385 - Arrangements for measuring battery or accumulator variables
G01R 31/378 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator
G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
A control apparatus controls a relay. The control apparatus includes a control element, a monitoring circuit, and a determination unit. An input signal is input to the control element. The control element outputs an output signal and a diagnostic signal. The monitoring circuit generates an output monitor signal indicating the level of the output signal. The determination unit determines whether or not the control apparatus has an abnormality, based on a relationship between the output monitor signal and the diagnostic signal. Here, the output signal is a signal for driving the relay. One terminal of the monitoring circuit is electrically connected to an output terminal of the control element for the output signal. The diagnostic signal is a signal for monitoring the state of an output destination of the output signal.
A first voltage detection device includes a first holding body, a first voltage detection portion held by the first holding body, and a first conductor attached to the first holding body, at least a portion of the conductor being functioning as a fuse.
H01M 50/583 - Devices or arrangements for the interruption of current in response to current, e.g. fuses
H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
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
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
A battery module includes a battery cell, a positive electrode lead or negative electrode lead provided in the battery cell, a first conductor electrically connected to the battery cell, at least a portion of the first conductor being functioning as a fuse above the positive electrode lead or the negative electrode lead, and a first base, at least a portion of the first base being located between the positive electrode lead or negative electrode lead, and the fuse.
H01M 50/583 - Devices or arrangements for the interruption of current in response to current, e.g. fuses
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
A first voltage detection device includes a plurality of first voltage detection portions connected to a plurality of lead portions of a plurality of battery cells, a first holding body holding the plurality of first voltage detection portions, and an insulator provided at the first holding body, at least a portion of the insulator being located between the different lead portions.
G01R 31/3835 - Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
G01R 31/364 - Battery terminal connectors with integrated measuring arrangements
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 50/531 - Electrode connections inside a battery casing
A first fuse device includes a first conductor, at least a portion of the conductor being functioning as a fuse, and a first wiring electrically connected to the first conductor. At least a portion of the first wiring passes through a first space of the first conductor, the first space being defining the fuse.
Any of a position of a fifth end surface of a first folded portion at a first side portion, a position of a first inner surface of the first folded portion opposite to the fifth end surface of the first folded portion, and a position of a portion between the fifth end surface and the first inner surface of the first folded portion is aligned with a position of a third end surface of a second electrode at the first side portion.
H01M 10/04 - Construction or manufacture in general
H01M 10/0583 - Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
A plurality of first current collector parts (112a) are drawn out from a stacked part (100a). An exterior material (200) encloses a battery element (100). A first tab (310) is connected to the plurality of first current collector parts (112a). The plurality of first current collector parts (112a) between the stacked part (100a) and the first tab (310) have a first region (RG1). In the first region (RG1), a thickness of a bundle including the plurality of first current collector parts (112a) in a third direction (Z) decreases from the stacked part (100a) to the first tab (310), and a decrease rate of the thickness decreases from the stacked part (100a) to the first tab (310).
A film (200) includes a first accommodation portion (210) and a second accommodation portion (220). The first accommodation portion (210) covers one side of the battery element (100). The second accommodation portion (220) covers the other side opposite to the one side of the battery element (100). A recessed portion (232) is formed at a portion of the film (200) folded from one of the first accommodation portion (210) and the second accommodation portion (220) to the other. The recessed portion (232) is recessed towards the battery element (100). The recessed portion (232) extends along one direction orthogonal to a direction from the one side toward the other side of the battery element (100).
A positive electrode (100) includes a positive electrode current collector (110), a positive electrode mixture (120), and a mixture (130). The positive electrode current collector (110) has a first surface (112). The first surface (112) of the positive electrode current collector (110) includes a first region (112a), a second region (112b), and a third region (112c). The positive electrode (100) satisfies the following expression (1).
A positive electrode (100) includes a positive electrode current collector (110), a positive electrode mixture (120), and a mixture (130). The positive electrode current collector (110) has a first surface (112). The first surface (112) of the positive electrode current collector (110) includes a first region (112a), a second region (112b), and a third region (112c). The positive electrode (100) satisfies the following expression (1).
0≤L3/(L1+L3)≤0.075 (1)
A positive electrode (100) includes a positive electrode current collector (110), a positive electrode mixture (120), and a mixture (130). The positive electrode current collector (110) has a first surface (112). The first surface (112) of the positive electrode current collector (110) includes a first region (112a), a second region (112b), and a third region (112c). The positive electrode (100) satisfies the following expression (1).
0≤L3/(L1+L3)≤0.075 (1)
Here, L1 is a length of the positive electrode (100) of the first region (112a) of the positive electrode (100) in one direction (first direction (X)), and L3 is a length of the third region (112c) of the positive electrode (100) in the one direction (first direction (X)).
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 50/59 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
xyz1-y-z22 (0.80 ≤ y ≤ 0.93, and M is a metal element including at least one of the elements Mn and Al). The length of the first positive electrode active material layer (122) in the lengthwise direction thereof is 300-740 mm.
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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 4/525 - 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 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
31.
BATTERY MODULE, AND METHOD FOR MANUFACTURING BATTERY MODULE
At least a part of a positive electrode lead (110) and at least a part of a negative electrode lead (120) are joined to one another. A plurality of the positive electrode leads (110) and a plurality of the negative electrode leads (120) are folded back from one of a plurality of first battery cells (100a) and a plurality of second battery cells (100b) to the other of the plurality of first battery cells (100a) and the plurality of second battery cells (100b), via the at least part of the plurality of positive electrode leads (110) and the at least part of the plurality of negative electrode leads (120).
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 50/204 - Racks, modules or packs for multiple batteries or multiple cells
H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
H01M 50/50 - Current conducting connections for cells or batteries
H01M 50/548 - Terminals characterised by the disposition of the terminals on the cells on opposite sides of the cell
H01M 50/569 - Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
Provided is a battery module capable of appropriately connecting an overlapping tab and busbar. A battery module which has a plurality of battery cells 10 having tabs 101, 102, has busbars 152, 153 for electrically connecting the battery cells to one another, and has an electrically insulative busbar holder 150 for holding the busbars 152, 153 in a manner such that the busbars 152, 153 are arranged in parallel to and at a distance from one another, wherein: the busbar holder 150 has slit openings 156b-156e through which the tabs 101, 102 are pulled and which are positioned in a region adjacent to the busbars 152, 153; and the busbars 152, 153 are equipped with a plate-shaped tab connection part which is joined to the tabs 101, 102 and stands upright from the outer-peripheral surface of the busbar holder 150.
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 50/507 - 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 50/516 - Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
H01M 50/521 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing characterised by the material
H01M 50/526 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing characterised by the material having a layered structure
H01M 50/528 - Fixed electrical connections, i.e. not intended for disconnection
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
H01M 50/572 - Means for preventing undesired use or discharge
According to the present invention, a first voltage detection device (30) detects a voltage of a lead part (150) which is folded back between different battery cells (100). The first voltage detection device (30) includes a first voltage detection unit (410), a first voltage detection line (420) electrically connected to the first voltage detection unit (410), and a first holder (300) which holds the first voltage detection unit (410) and the first voltage detection line (420).
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 50/204 - Racks, modules or packs for multiple batteries or multiple cells
H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
H01M 50/548 - Terminals characterised by the disposition of the terminals on the cells on opposite sides of the cell
H01M 50/569 - Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
A battery module (10) that comprises a plurality of battery cells (100), first elements (210) that are positioned between adjacent battery cells (100) and have a thermal conductivity of less than 1.0 W/m·K, and second elements (220) that are positioned between the first elements (210) and the battery cells (100) and have a thermal conductivity of at least 10 W/m·K. The second elements (220) are thermally bonded to a housing part (300) at a first portion thereof that covers a portion of each of the battery cells (100). Said portion of each of the battery cells (100) is thermally insulated from the first portion of the housing part (300). Specifically, a gap is provided between the first portion of the housing part (300) and said portion of each of the battery cells (100).
H01M 10/647 - Prismatic or flat cells, e.g. pouch cells
H01M 10/651 - Means for temperature control structurally associated with the cells characterised by parameters specified by a numeric value or mathematical formula, e.g. ratios, sizes or concentrations
H01M 10/6555 - Rods or plates arranged between the cells
H01M 10/658 - Means for temperature control structurally associated with the cells by thermal insulation or shielding
H01M 50/20 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders
35.
POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, POSITIVE ELECTRODE SHEET FOR LITHIUM ION SECONDARY BATTERY, AND METHOD FOR MANUFACTURING THE SAME
Provided is a positive electrode for a lithium ion secondary battery including a metal foil (9) (current collector), a first mixture layer (11) which is provided on one surface of the metal foil (9) and contains a positive electrode active material, and a second mixture layer (12) which is partially covered by the first mixture layer (11) and includes, as a main component, particles different from the active material, in which the second mixture layer (12) is provided on one end (11a) side of the first mixture layer (11) in a boundary portion between a formed area of the first mixture layer (11) and a non-formed area of the first mixture layer (11), one end (12a) of the second mixture layer (12) is positioned between the one surface of the metal foil (9) and a lower surface of the first mixture layer (11) in the formed area of the first mixture layer (11), and the other end (12b) is positioned in the non-formed area, and the first mixture layer (11) and the second mixture layer (12) contain a dispersed conductive substance.
POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, POSITIVE ELECTRODE SHEET FOR LITHIUM ION SECONDARY BATTERY, AND METHOD FOR MANUFACTURING THE SAME
Provided is a positive electrode for a lithium ion secondary battery including a metal foil (9) (current collector), a first mixture layer (11) which is provided on one surface thereof and contains a positive electrode active material, and a second mixture layer (12) which is partially covered by the mixture layer (11) and includes insulating particles as a main component, in which the mixture layer (12) is provided on one end (11a) side of the mixture layer (11) in a boundary portion between a formed area of the mixture layer (11) and a non-formed area of the mixture layer (11), one end (12a) of the mixture layer (12) is positioned between the one surface of the metal foil (9) and a lower surface of the mixture layer (11) in the formed area of the mixture layer (11) in the formed area of the first mixture layer (11), and the other end (12b) is positioned in the non-formed area, and binding agents contained in the mixture layer (12) and the mixture layer (11) are the same, and a proportion of the binding agent contained in the mixture layer (12) to a total amount of the mixture layer (12) is larger than a proportion of the binding agent contained in the mixture layer (11) to a total amount of the mixture layer (11).
A battery (10) includes a positive electrode (100) and a negative electrode (200). The positive electrode (100) includes an active material layer (120) (an active material layer (122) and an active material layer (124)) and a layer (300) (a layer (310) and a layer (320)). The layer (300) is over the active material layer (120). The layer (300) contains magnesium hydroxide particles (A). The magnesium hydroxide particles (A) are surface treated with stearic acid.
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 10/0583 - Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
38.
DATA PROCESSING DEVICE, MODEL GENERATION DEVICE, DATA PROCESSING METHOD, MODEL GENERATION METHOD, AND PROGRAM
An output data generation unit (240) generates output data by using a model generated via machine learning. Input data used for this model comprises a plurality of input elements and is based on a measurement result of at least one type of parameter indicating the state of an object to be measured. The model used by the output data generation unit (240) outputs verification output data when verification input data is used as the input data. In the verification input data, a value of a specific input element is outside the range of possible values for said specific input element, and is within a predetermined range. Also, in the verification output data, a value of a specific output element is within a predetermined range.
According to the present invention, an outer edge of a negative electrode (200) covered by a first adhesive member (410) is substantially aligned with an outer edge of a positive electrode (100) covered by the first adhesive member (410) in a direction from a laminated body (10) to the first adhesive member (410) or from the first adhesive member (410) to the laminated body (10). In detail, the outer edge of the negative electrode (200) covered by the first adhesive member (410) is located within a distance range of 0% or more and 200% or less of the thickness of the negative electrode (200) in the direction with respect to the outer edge of the positive electrode (100) covered by the first adhesive member (410).
Provided is a battery module with which an improvement in cooling performance can be achieved. This battery module is provided with: a plurality of battery cells 10 stacked on one another; spacers 12 provided at the ends of the battery cells 10; and heat transfer plates 20 including heat absorbing portions 20a disposed between the stacked plurality of battery cells 10 to absorb heat from the battery cells 10, and heat dissipating portions 20b for dissipating the heat absorbed by the heat absorbing portions 20a to the outside. The heat dissipating portions 20b are bent with respect to the heat absorbing portions 20a, are exposed from between the battery cells 10, and are in contact with the spacers 12. The spacers 12 are provided with contacting portions 126 having contacting surfaces 260 which come into contact with the heat dissipating portions 20b, and positioning portions 127a having surfaces 270 which have the opposite orientation to the contacting surfaces 260 and which define the positions of the spacers 12.
H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
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
41.
DATA PROCESSING SYSTEM, MODEL GENERATION DEVICE, DATA PROCESSING METHOD, MODEL GENERATION METHOD, AND PROGRAM
A data processing system (20) is provided with an input data processing unit (230), an intermediate data generation unit (240), and an output data generation unit (250). The input data processing unit (230) acquires input data and converts the input data in accordance with a conversion rule. An example of this conversion rule is to increase the number of values included in the input data by adding dummy data to the input data. The intermediate data generation unit (240) generates intermediate data by processing the converted input data. This intermediate data is, for example, data in a plurality of rows and/or a plurality of columns that comprise a plurality of values. The intermediate data includes a meaningful value (that is to say, value to be obtained) and a value to be dummy. The output data generation unit (250) generates the output data by selecting the meaningful value from the intermediate data generated by the intermediate data generation unit (240).
In the present invention, positive electrodes (110) are first electrodes, and negative electrodes (120) are second electrodes having a greater area than the first electrodes. A separator (130) extends while folding back between the positive electrodes (110) and the negative electrodes (120) that are adjacent to each other. In all of a plurality of battery cells (10), the fold-back sections of the separator (130) cover a section on the same side of each of the negative electrodes (120). Specifically, in all of the plurality of battery cells (10), the fold-back sections of the separator (130) cover top sections of the negative electrodes (120).
H01M 10/0583 - Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
H01M 50/46 - Separators, membranes or diaphragms characterised by their combination with electrodes
NEGATIVE ELECTRODE, LITHIUM ION SECONDARY BATTERY, MANUFACTURING METHOD OF NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND MANUFACTURING METHOD OF NEGATIVE ELECTRODE SHEET FOR LITHIUM ION SECONDARY BATTERY
This negative electrode (100) for a lithium ion secondary battery comprises a negative electrode active material layer (120) that is formed on a current collector (110) and that contains at least a negative electrode active material and a binding material, wherein the negative electrode (100) further comprises, on the surface of the negative electrode active material layer (120), an insulation layer (300) that contains at least an insulating material and a binding material, and wherein the binding material contained in the insulation layer (300) contains at least a styrene-butadiene rubber and at least one item selected from a carboxymethyl cellulose and a salt thereof, and the binding material contained in the negative electrode active material layer (120) is at least one item selected from a polyacrylic acid and a salt thereof.
ijjj). The calculation unit (240) calculates the estimation result of the SOH transition of a storage battery (30) managed by the deterioration estimation device (20), by using the plurality of models stored in the model storage unit (220).
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
G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
45.
REMAINING CAPACITY ESTIMATION DEVICE, MODEL GENERATION DEVICE, REMAINING CAPACITY ESTIMATION METHOD, MODEL GENERATION METHOD, AND PROGRAM
This remaining capacity estimation device (20) comprises a storage processing unit (210) and a calculation unit (240). The storage processing unit (210) acquires a model from a model generation device (10) and stores the model in a model storage unit (220). When data for updating the model is acquired from the model generation device (10), the storage processing unit (210) updates the model stored in the model storage unit (220). The calculation unit (240) calculates the remaining capacity of a storage battery (30) managed by the remaining capacity estimation device (20), by using the model stored in the model storage unit (220). At this time, the data (measurement data for calculation) input to the model includes the current, voltage, and temperature of the storage battery (30). When the input data in the generation of the model is only current, voltage, and temperature, the measurement data for calculation is only current, voltage, and temperature.
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
G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
G01R 31/3842 - Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
G01R 31/388 - Determining ampere-hour charge capacity or SoC involving voltage measurements
In the present invention, a plurality of first current collector parts (112a) are led out from a layered part (100a). A packaging material (200) encloses a battery element (100). A first tab (310) is connected to the plurality of first current collector parts (112a). The plurality of first current collector parts (112a) between the layered part (100a) and the first tab (310) have a first region (RG1). In the first region (RG1), a thickness, in a third direction (Z) of a bundle that includes the plurality of first current collector parts (112a) decreases going from the layered part (100a) toward the first tab (310). The rate of this decrease in thickness decreases going from the layered part (100a) toward the first tab (310).
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
A film (200) has a first accommodation part (210) and a second accommodation part (220). The first accommodation part (210) covers one side of a battery element (100). The second accommodation part (220) covers the other side, opposite to the one side, of the battery element (100). A recessed portion (232) is formed in the film (200) at an area where either one of the first accommodation part (210) and the second accommodation part (220) is folded back over the other. The recessed portion (232) is indented towards the battery element (100). The recessed portion (232) is further configured to extend in a direction orthogonal to the direction that runs from the one side of the battery element (100) towards the other side.
B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
B29C 43/34 - Feeding the material to the mould or the compression means
48.
POSITIVE ELECTRODE, LITHIUM ION SECONDARY BATTERY AND METHOD FOR PRODUCING POSITIVE ELECTRODE SHEET
A positive electrode (100) according to the present invention is provided with a positive electrode collector (110), a positive electrode mixture (120) and a mixture (130). The positive electrode collector (110) has a first surface (112). The first surface (112) of the positive electrode collector (110) comprises a first region (112a), a second region (112b) and a third region (112c). The positive electrode (100) satisfies formula (1). (1): 0 ≤ L3/(L1 + L3) ≤ 0.075 In the formula, L1 represents the length of the first region (112a) of the positive electrode (100) in one direction (the first direction (X)); and L3 represents the length of the third region (112c) of the positive electrode (100) in one direction (the first direction (X)).
A lithium ion battery (100) of the invention includes a battery main body (10) which includes one or more power generation elements configured by laminating a positive electrode layer, an electrolyte layer, and a negative electrode layer, in this order; an outer package (20) which includes at least a heat-fusion resin layer (21) and a barrier layer (23), and in which the battery main body (10) is sealed; and a pair of electrode terminals (30), each of which is electrically connected to the battery main body (10) and at least a part of which is exposed to the outside of the outer package (20). The outer package (20) includes an accommodation portion (25) which accommodates the battery main body (10), a joint portion (27) where the heat-fusion resin layers (21) positioned on a peripheral portion of the accommodation portion (25) are joined with each other directly or through the electrode terminal (30), and an extruded resin portion (29) which is formed by extrusion of a part of the heat-fusion resin layer (21) of the joint portion (27) from the joint portion (27) to the accommodation portion (25) side, and a difference (Lmax−Lmin) between a maximum length Lmax and a minimum length Lmin of the extruded resin portion (29) is equal to or greater than 0.0 mm and equal to or smaller than 1.0 mm.
A battery module includes a cell stack in which a plurality of plate-shaped cells is stacked such that each main surface, which is a surface of each of the plate-shaped cells in a cell thickness direction, faces one another.
H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch 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
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 50/54 - Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
51.
Battery stack forming apparatus and battery stack forming method
To provide a battery stack forming apparatus and a battery stack forming method that are capable of stacking electric cells with the electric cells accurately maintained in positions.
H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
H01M 10/04 - Construction or manufacture in general
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 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
52.
Spacer, battery pack, and method for manufacturing battery pack
j. The abutting portion abuts the distal end portion of the electrode tab along the stacking direction of the unit cells. The recessed portion is recessed in a direction intersecting the stacking direction of the unit cells so as to be separated from the distal end portion of the electrode tab. The communicating portion allows an inner side of the recessed portion to communicate with the outside of the recessed portion.
A stacked battery includes: a power generation element in which a plurality of electrodes and a plurality of separators are alternately stacked; an exterior member in which the power generation element is accommodated together with an electrolytic solution; and a bonding portion configured to bond an outermost layer of the power generation element and an inner side of the exterior member, wherein when the power generation element is viewed in a plan view from a stacking direction in which the electrodes and the separators are stacked, the bonding portion is located outside an effective region contributing to power generation in the power generation element and has a shape in which an outer peripheral edge of the bonding portion is continuous over an entire circumference of the bonding portion.
Provided is a current collector electrode sheet (10) including a slurry application area (11) formed by intermittently applying and drying a slurry containing an active material and a non-application area (12), on both surfaces of a metal foil (9), in which the application area (11) and the non-application area (12) are alternately formed in a winding direction of the metal foil (9) having a strip shape, and, in a compression step of continuously compressing the slurry application area (11) and the non-application area (12) using a pair of compression rollers in a thickness direction of the current collector electrode sheet (10), an area which is not compressed by the compression rollers, is present in a tailing portion (14) at a terminal end (13) of each application area (11).
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 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
55.
Battery pack inspection method and inspection device for anomaly detection via voltage comparison over time
The inspection device includes a charging unit and an inspection unit, and detects the connection anomaly by retrieving a first cell voltage at the early stage of start of the constant-current charging and a second cell voltage at a stage where the charging has progressed to determine deviations from the average value of all the cell groups.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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
G01R 31/3842 - Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
G01R 31/50 - Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
56.
ELECTRODE TAB FORMING METHOD AND ELECTRODE TAB FORMING DEVICE
[Problem] To provide an electrode tab forming method by which an electrode tab can be bent highly accurately, and an electrode tab forming device. [Solution] An electrode tab 113 forming device 10 comprises: a first die 21 that has a first support surface 24a for supporting a proximal portion 113c of an anode-side electrode tab 113A; a second die 22 that has a second support surface 24b for supporting a proximal portion of a cathode-side electrode tab 113K; a first punch 31 for bending the anode-side electrode tab in cooperation with the first die; a second punch 32 for bending the cathode-side electrode tab in cooperation with the second die; and a drive portion 50 for causing the first punch and the second punch to be moved together relative to the first die and the second die, along a first direction D1 orthogonal to the first support surface and the second support surface. During a single operation in which the first punch and the second punch are caused to be moved together relative to the first die and the second die by the drive portion, the timing of bending of the respective electrode tabs is staggered.
[Problem] To provide a battery material supply device and a battery material supply method, with which increases in cycle time and material cost can be suppressed. [Solution] A supply device 100 for a battery material T comprises: a supply roller 110 around which a long battery material is wound in a reel shape; a dancer roller 121 which draws out the battery material from the supply roller by self-weight; a drive unit 130 which drives the supply roller such that the battery material is unwound from the supply roller; and a control unit 170 which controls the operations of the dancer roller and the drive unit. The control unit executes a self-weight mode in which the battery material is drawn out from the supply roller by the self-weight of the dancer roller, and switches from the self-weight mode to an unwinding mode in which the battery material is unwound from the supply roller by the drive unit.
[Problem] To provide an inspection device capable of accurately inspecting the surface of a battery while suppressing pallet degradation. [Solution] An inspection device 10 comprises a pallet 20 upon which a battery 110 is placed, a housing 40 that has an opening 40H formed in a bottom 41 thereof and forms a dark chamber 40R around the battery, an emission unit 50 for emitting ultraviolet light UV onto the surface of the battery 110 in the dark chamber, and an imaging unit 60 for forming image data by imaging the surface of the battery 110 upon which ultraviolet light has been emitted. At the edge of the opening, the bottom of the housing has an overlapping part 42 that overlaps with the outer periphery of the battery when viewed from the direction in which the ultraviolet light UV is emitted from the emission unit 50.
This power source apparatus is provided with: a battery unit which is provided with a plurality of battery packs in a detachable manner and which supplies power to an electric travel drive device; a switching device that is provided between the battery packs and the electric travel drive device and that connects a first battery pack among the battery packs to the electric travel drive device; and a management system that controls the switching device to connect a second battery pack different from the first battery pack among the battery packs to the electric travel drive device when the remaining battery level of the first battery pack connected to the electric travel drive device becomes equal to or below a prescribed threshold value.
B60L 58/21 - 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 having the same nominal voltage
B60L 53/80 - Exchanging energy storage elements, e.g. removable batteries
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
An operation management system for an electric vehicle which travels by an electric driving device receiving electric power supply from a battery unit, is provided with: an obtainment unit which obtains status information about the battery unit from the electric vehicle and obtains the remaining level of the battery unit based on the status information; a first battery level calculation unit which calculates a first battery level required for the electric vehicle to travel to a destination; a prediction unit which predicts battery shortage in which the remaining level is lower than the first battery level; and an instruction unit which, when the prediction unit predicts the battery shortage, generates instruction information including an instruction for replacing the electric vehicle with an alternative vehicle at a meeting point and/or an instruction for charging the electric vehicle using an electric power supply vehicle at the meeting point.
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
B60L 53/68 - Off-site monitoring or control, e.g. remote control
61.
POSITIONING AND CONVEYING DEVICE AND POSITIONING AND CONVEYING METHOD
[Problem] To provide a positioning and conveying device and a positioning and conveying method which are capable of conveying a battery while maintaining high positioning accuracy of the battery. [Solution] A positioning and conveying device 10 comprises: a pallet 20 on which a battery 110 is mounted; a clamp 21 which holds the battery with respect to the pallet; a linear conveyor 30 which conveys the pallet; a mounting robot 40 which holds and mounts the battery on the pallet; a detection unit 50 which detects the position of a reference part 210 set in an electrode tab 113 of the battery; and a control unit 70. The control unit holds the battery by the mounting robot, detects, by the detection unit, the position of the reference part of the battery held by the mounting robot, performs positioning by making a correction for matching the position of the reference part of the battery to a reference position 220 of the detection unit installed at preset facility machine coordinates, holds the battery with respect to the pallet by the clamp, and conveys the pallet by the linear conveyor.
A unit cell including a cell body, an electrode tab (an anode side electrode tab and a cathode side electrode tab) and a sealing member (laminate film). The cell body includes a power-generating element and is formed into a flat shape. The anode side electrode tab and the cathode side electrode tab extend out from the cell body. The sealing member (laminate film) includes a sheet-shaped metal layer and a sheet-shaped insulating layer that covers and insulates the metal layer from both sides to sandwich and seal the cell body. In the sealing member, an exposed end portion of a metal layer is spaced from a surface of the insulating layer, while bending at least a portion of an outer edge.
The purpose of the present invention is to ensure a sufficient discharge flow rate of gas when the pressure within a battery case becomes high. This battery case (30) is a battery case that houses a battery (2) within a housing (10), and comprises: a gas exhaust port (51) that opens to a wall plate (43) covering the periphery of the housing (10); and a gas discharge mechanism (G) that is placed to cover the gas exhaust port (51) from the inside of the wall plate (43), and that has a lid (35m) fixed at the housing (10) side.
A battery pack (2000) includes a battery (2020), a contact-type switch (2040), a control unit (2060), and a sensor (2080). The battery pack (2000) is connected to a charger (10) through an electric power line (30). The battery (2020) is charged with a charging current supplied from the charger (10). The battery pack (2000) is connected to a load (20) through an electric power line (40). The contact-type switch (2040) is provided between the charger (10) and the battery (2020). The control unit (2060) turns off the contact-type switch (2040) in a case where a value detected by the sensor (2080) is equal to or smaller than a reference value decided based on specifications of the contact-type switch (2040).
H01M 10/46 - Accumulators structurally combined with charging apparatus
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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
A battery pack houses a battery inside a battery case, the battery case (100) includes an opening (450), cables (200, 300) electrically connected with the battery is inserted to the opening, a cable protection member (400) including a through portion (410) is arranged at the opening, the cable protection member is attachable to the opening in at least two different directions, and a position of the through portion to the battery case changes according to an attaching direction.
Provided is a method for manufacturing a mono cell having a sheet-like negative electrode, a sheet-like separator and a sheet-like positive electrode laminated in this order. In this manufacturing method, adhesives are disposed at a plurality of points on an upper surface of the negative electrode, then, the negative electrode is bonded to a lower surface of the separator, and furthermore, adhesives are disposed at a plurality of points on a lower surface of the positive electrode, then the positive electrode is bonded to an upper surface of the separator. When viewed in the lamination direction of the mono cell, the positions of the adhesives and the positions of the adhesives do not overlap each other. Then, adhesives are disposed at a plurality of points on an upper surface of the positive electrode, and a lower surface of a separator is bonded to the upper surface of the positive electrode.
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 50/46 - Separators, membranes or diaphragms characterised by their combination with electrodes
H01M 4/02 - Electrodes composed of, or comprising, active material
67.
Assembled battery and manufacturing method for the same
A film-covered battery includes a coverage case having a film covering material and a power generation element contained in the coverage case. The coverage case has a first sealing part that guides a terminal and a second sealing part that does not guide a terminal. The second sealing part is formed on at least one face (face F) with a maximum area among exterior faces of the power generation element. The assembled battery has a third sealing part being a part of the second sealing part and overlapping the power generation element. In the assembled battery, a heat dissipation plate is placed on the face F where the third sealing part is formed. A projection area of the third sealing part and the heat dissipation plate on the face F occupies 40% or more of the face F.
An ultrasonic bonding tool is used on a horn side or anvil side of an ultrasonic joining device in which two synthetic resin sheets that include a polyethylene layer, a polypropylene layer and a ceramic heat-resistant layer are superposed and joined together so that the heat-resistant layers face each other. The ultrasonic bonding tool includes a plurality of protrusions shaped as quadrangular pyramids having a flat top surface. Each of the protrusions has an apex angle formed by two mutually opposite side surfaces that is within a range of 110-130°. When two separators of a battery cell are joined together using the ultrasonic bonding device with the ultrasonic bonding tool, a force with which the separators adhere to the protrusions is weak. In this way, the separators do not adhere to the horn during ultrasonic bonding of the synthetic resin sheets.
B32B 7/00 - Layered products characterised by the relation between layers Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties Layered products characterised by the interconnection of layers
B29C 65/00 - Joining of preformed partsApparatus therefor
B29C 65/08 - Joining of preformed partsApparatus therefor by heating, with or without pressure using ultrasonic vibrations
H01M 2/14 - Separators; Membranes; Diaphragms; Spacing elements
B29L 31/34 - Electrical apparatus, e.g. sparking plugs or parts thereof
B29K 23/00 - Use of polyalkenes as moulding material
In producing a mono-cell, the mono-cell is formed from separator, positive electrode, separator and negative electrode which are joined to each other. Negative electrode is joined, one by one, to one surface of strip of continuously conveyed separator. Positive electrode having different size from negative electrode is joined, one by one, to the other surface of separator. Strip of continuously conveyed second separator is joined to one of negative and positive electrodes. Position of negative electrode joined to separator is detected by negative electrode joining position detection cameras, and joining position of positive electrode is corrected by positive electrode alignment mechanism with this detected position of negative electrode being a reference during conveyance of positive electrode along positive electrode conveyance direction.
H01M 2/16 - Separators; Membranes; Diaphragms; Spacing elements characterised by the material
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 50/46 - Separators, membranes or diaphragms characterised by their combination with electrodes
H01M 4/02 - Electrodes composed of, or comprising, active material
H01M 10/04 - Construction or manufacture in general
70.
Secondary battery and method for manufacturing secondary battery
A secondary battery includes a power generation element that includes a positive electrode having a collector on which a positive electrode active material layer is disposed, an electrolyte layer for retaining an electrolyte, and a negative electrode having a collector on which a negative electrode active material layer is disposed. The negative electrode active material layer has an area greater than that of the positive electrode active material layer. The negative electrode active material layer has a facing portion that faces a positive electrode active material layer with an electrolyte layer interposed by therebetween, and a non-facing portion that is positioned on an outer periphery of the facing portion and does not face the positive electrode active material layer. The non-facing portion has a stretching rate that is less than a stretching rate of the facing portion.
To provide a highly reliable battery pack having excellent manufacturability, a battery pack according to the present invention includes a stack of a plurality of battery cells 100 that each include a positive electrode lead tab and a negative electrode lead tab led out of a laminate film casing in a same direction, a coupling assisting member 300 that assists in electrically connecting adjoining battery cells 100, and a reinforcing member 200 interposed between the stacked battery cells 100. The reinforcing member 200 includes a protrusion 240 protruding in the same direction as that in which the positive electrode lead tabs and the negative electrode lead tabs of the battery cells 100 are led out. The coupling assisting member 300 includes a guide portion 340 that engages with the protrusion 240 and guides the protrusion 240 in combining the coupling assisting member 300 and the reinforcing member 200.
A secondary battery has a battery body and a restraint. The battery body has a plurality of stacked power generation elements. The restraint restrains the battery body. The restraint has a first contact section (for applying a restraining force to an outermost layer surface (e.g., a negative electrode collector) of the battery body. The restraint is configured so that a stress occurring at a boundary of a non-contact region and a contact region of the first contact section is less than a breaking strength of the negative electrode collector, and the stress is based on the restraining force and on expansion and contraction of a negative electrode due to a change in volume of a negative electrode active material layer caused by charging and discharging.
A battery pack production method is provided for producing a battery pack having several unit cells that are stacked with filling members interposed therebetween. The stacked unit cells are electrically connected. The battery pack production method includes measuring the thicknesses of the unit cells, arranging a filling member between adjacent ones the unit cells, and pressurizing the filling member to reduce a thickness of the filling member in the stacking-direction. In the battery pack production method, the thickness of the filling member is controlled based on the measured thicknesses of the unit cells after stacking according to at least one of: an amount of the elastic adhesives arranged; a length of time during which the elastic adhesives are pressurized; and a force pressurizing the elastic adhesives; and a distance between stacking-direction centers of two unit cells adjacent in the stacking direction is kept within a constant range.
A battery pack includes a plurality of unit cells, a plurality of busbars, a support member and a busbar holder. The unit cells have electrode tabs. The busbars have connection portions joined to the electrode tabs. The support member supports the electrode tabs. The busbar holder retains the busbars. The busbar holder has pressing parts that press the connection portions of the busbars toward the electrode tabs supported by the support member, and deforming parts that urge the pressing parts with a repulsive force in a direction in which the pressing parts are caused to move toward the electrode tabs. The deforming parts have leg parts that extend so as to project in a direction away from the busbars.
3] is density of the negative electrode. A is a constant that is equal to or more than 50 and equal to or less than 70. B is a constant that is equal to or more than 500 and equal to or less than 620. C is a constant that is equal to or more than 30 and equal to or less than 36.
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
76.
BATTERY MODULE, AND METHOD FOR MANUFACTURING BATTERY MODULE
[Problem] To provide a battery module capable of reliably applying pressing force to a plate-shaped battery, and a method for manufacturing a battery module. [Solution] This battery module 100 comprises a battery stack 110S for which a plurality of plate-shaped batteries 110 are stacked so that principal surfaces 20 which are the surfaces in the battery thickness direction of the respective plate-shaped batteries oppose each other. The battery module has a frame-shaped protuberant part 31 that is formed on the principal surface of one of the plurality of plate-shaped batteries, the protuberant part 31 projecting in the battery-thickness direction from the principal surface of the plate-shaped battery, and being formed in the shape of a frame that is open in the battery-thickness direction. The battery module has a filler 40 that is filled into a space 32 on the inside of the frame-shaped protuberant part, said space 32 being formed by the frame-shaped protuberant part, the principal surface of one plate-shaped battery, and the principal surface of another plate-shaped battery facing the one plate-shaped battery in the stacking direction. Also, the volume at atmospheric pressure of a filling 0 filled in the frame-shaped protuberant part internal space is greater than the volume of the frame-shaped protuberant part internal space in a state with the battery stack pressurized.
[Problem] To provide: a battery stack forming device capable of stacking single batteries by maintaining the positions of the single batteries with high accuracy; and a battery stack forming method. [Solution] A battery stack forming device 10 includes: a stacking robot 20 that holds and stacks a single battery 110; a detection unit 40 that detects the positions of reference sections 30 (a first inspection hole 31 and a second inspection hole 32) set at least at two locations on electrode tabs 130 of the single battery held by the stacking robot; and a control unit 50. The control unit controls the operation of the stacking robot and the detection unit. The control unit holds the single battery via the stacking robot, detects the positions of the reference sections via the detection unit, and matches the positions of the reference sections with preset stacking reference positions 60 for forming a battery stack 110S.
Provided is a power supply device such that the start-up time can be shortened. This power supply device (1) comprises a plurality of battery packs (5) and a plurality of battery control units (3A, 3B, 3C) having a master/slave configuration with a one-to-one correspondence with the plurality of battery packs (5). The plurality of battery control units (3A, 3B, 3C) use, between the masters and slaves, a first communication scheme to communicate during a self-diagnosis performed when the power supply device (1) starts up, and a second communication scheme with a shorter communication period than the first communication scheme to communicate during a mechanical operation diagnosis.
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
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
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 7/14 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
79.
LIQUID INJECTION DEVICE AND LIQUID INJECTION METHOD
[Problem] To provide a liquid injection device capable of ensuring the withdrawal of a gas inside a pouch-shaped film exterior body. [Solution] The liquid injection device 2 comprises a nozzle 9 for injecting an electrolytic solution into the pouch-shaped film exterior body 4 and a sealing mechanism 10 for pressing the pouch-shaped film exterior body into which the nozzle has been inserted to seal the nozzle. The nozzle comprises an outer periphery side nozzle part 15, an inner periphery side nozzle part 16, and a shaft part 17 provided with a hollow portion 17b. The nozzle comprises an electrolytic solution passage 19 wherethrough the electrolytic solution flows, a reduced pressure passage 28 formed by the hollow portion of the shaft part and used to withdraw the gas inside the pouch-shaped film exterior body, a first valve 24 capable of opening and closing a liquid injection port 20 serving as an outlet for the electrolytic solution passage, and a second valve 25 capable of opening and closing a suction port 29 serving as an inlet for the reduced pressure passage. Then, in a state wherein the first valve has closed the liquid injection port, the shaft part extends from the leading end portion of the inner periphery side nozzle part toward a power-generating element, thereby causing the second valve to open the suction port.
2/Ah or more, and a rated capacity being 30 Ah or more, wherein a variation in porosity in the negative electrode active material layer is 6.0% or less.
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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 4/525 - 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 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
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
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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 4/525 - 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 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
A secondary battery suppresses generation of wrinkle at the outer peripheral edge portion of a negative electrode plate due to expansion of a negative electrode active material layer with use. The secondary battery includes a positive electrode plate with a positive electrode active material layer disposed on a first current collector, and a negative electrode plate with a negative electrode active material layer having an area larger than an area of the positive electrode active material layer disposed on a second current collector. The negative electrode plate includes a facing portion facing the positive electrode active material layer and a non-facing portion. The negative electrode plate and a separator are bonded through a bonding layer. The bonding strength of a second bonding portion that bonds the non-facing portion to the separator is larger than the bonding strength of a first bonding portion that bonds the facing portion to the separator.
H01M 2/16 - Separators; Membranes; Diaphragms; Spacing elements characterised by the material
H01M 2/10 - Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
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 10/0583 - Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
H01M 4/02 - Electrodes composed of, or comprising, active material
A spacer is used with a unit cell that has a cell body including a power-generating element and formed to have a flat shape and an electrode tab extending out from the cell body. The first spacer has a protrusion, a recess, and an opening. The protrusion has a protruding shape and is inserted into a hole or notch provided on the electrode tab to guide the electrode tab. The first recess has a recessed shape, and is separated from the electrode tab around the base of the protrusion. The first opening allows a portion of the first recess to communicate with a side surface of the spacer.
H01M 50/20 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders
H01M 50/54 - Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
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
A battery pack has a plurality of unit cells, a bus bar and a plate portion. The unit cells each includes a cell body having a power-generating element and being formed in a flat shape. Each unit cell has an electrode tab that extends out from a corresponding one of the cell bodies. The unit cells are stacked in a thickness direction of the cell bodies. The bus bar is electrically connected to the electrode tabs by laser welding. The plate portion forms a stacked structure together with the electrode tabs along an irradiation direction of the laser. Each electrode tab includes an anode-side electrode tab and a cathode-side electrode tab. The cathode-side electrode tabs have a different thickness than the anode-side electrode tabs. The plate portion is only provided on the ones of the anode-side electrode tabs and the cathode-side electrode tabs that have a smaller thickness.
A non-aqueous electrolyte secondary battery has improved battery cycle durability and suppresses internal short-circuits.
2/Ah or more, and a rated capacity being 50 Ah or more, in which a value R represented by Formula 1 is 62 to 110:
provided that, the average pore diameter is 0.10 to 0.18 μm, the porosity is 0.43 to 0.65, the air permeability is 140 to 305 sec/100 ml, and the thickness is 11 to 25 μm.
2/Ah or more, and a rated capacity is 30 Ah or more, and the electrolyte layer contains an electrolyte solution containing an electrolyte salt dissolved and a value obtained by dividing a weight of an electrolyte salt in pores in the negative electrode active material layer by a weight of the negative electrode active material is 0.031 or more.
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
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 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 4/525 - 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 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 10/056 - Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
2 particles and Si particles and a Si-containing alloy; α and β represent % by mass of each component in the layer; and 80≤α+β≤98, 0.1≤α≤40, and 58≤β≤97.9 are satisfied, and a difference between the maximum value and the minimum value of an area proportion (%) of a binder in an area of the field of view of each image of cross-sections of the layer in a case where a plurality of arbitrary places is selected in a plane of the negative electrode active material layer is within 10%.
H01M 2/16 - Separators; Membranes; Diaphragms; Spacing elements characterised by the 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 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
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 4/525 - 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
A connection module includes an insulation protector including a bus bar holder holding a bus bar. The insulation protector includes connection units. The connection units include two end connection units at two ends of the insulation protector, and intermediate connection units that are between the two end connection units. The two end connection units are connection units having a same structure, and one of the end connection units is relatively rotated by 180 degrees in a plan view with respect to another one of the end connection units, and each of the end connection units is connected to a corresponding intermediate connection unit.
H01M 2/20 - Current-conducting connections for cells
H01M 2/34 - Current-conducting connections for cells with provision for preventing undesired use or discharge
H01M 2/10 - Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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
The present invention reduces the possibility that parallel connection is not allowed at the time of reactivation. A plurality of battery packs (11, 12) connected in parallel each include a chargeable-dischargeable battery string (21, 22), relays (41, 42) provided in series to the battery string (21, 22), and a detection unit that detects the state of the battery string. A master control unit (34) that controls the battery packs turns off the relays of the battery packs when a circulating current falls below a cancel-allowing current and, on the basis of a result obtained by the detection unit, makes the cancel-allowing current smaller as the SOC-equivalent value of the battery pack into which the largest amount of the circulating current flows increases.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
B60L 58/13 - Maintaining the SoC within a determined range
B60L 58/21 - 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 having the same nominal voltage
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
A power supply system that can suppress battery performance degradation due to deposition is provided. Among two battery packs (101, 102) for which it is determined whether a parallel connection is to be made, a specific battery characteristic regarding a charging battery pack (102) that is a battery pack having the lower voltage is calculated. Then, it is determined whether the battery characteristic matches an allowance condition, and it is determined whether the two battery packs (101, 102) are to be connected in parallel to each other. In addition, at least one of the battery characteristic and the allowance condition changes in accordance with a voltage of the charging battery pack (102).
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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 2/20 - Current-conducting connections for cells
H02J 7/14 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
B60K 6/28 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, e.g. batteries or capacitors
B60L 53/00 - Methods of charging batteries, specially adapted for electric vehiclesCharging stations or on-board charging equipment thereforExchange of energy storage elements in electric vehicles
B60L 58/12 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
B60L 50/50 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
91.
Hybrid electric vehicle, and lithium ion secondary battery cell selection method for hybrid electric vehicle
Provided is a hybrid electric vehicle in which, in accordance with the system side of the vehicle including a fuel economy-emphasized system, a wide use-range of the SOC of a lithium ion secondary battery cell can be utilized.
B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
B60K 6/547 - Transmission for changing ratio the transmission being a stepped gearing
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 4/525 - 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 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
B60L 50/16 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
B60L 50/61 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
B60K 6/28 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, e.g. batteries or capacitors
B60W 10/26 - Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
B60W 20/13 - Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limitsControlling the power contribution of each of the prime movers to meet required power demand in order to prevent overcharging or battery depletion
92.
Manufacturing method and manufacturing device for battery pack
A manufacturing method of manufacturing a battery pack that includes: a cell group obtained by stacking unit cells in a stacking direction, and a bus bar electrically connecting the unit cells. Each of the unit cells has a cell body, an electrode tab and a spacer. The electrode tabs protrude out from the cell bodies, and are supported by the spacers. The method includes positioning joining portions of the electrode tabs to the bus bar at predetermined positions in a movement direction of the spacers by moving the spacers in one direction in a state in which the unit cells and the spacers are stacked, before the bus bar is joined to the electrode tabs. In addition, the method includes joining the bus bar to the electrode tabs in a state in which the joining portions of the electrode tabs are positioned at the predetermined positions.
Provided is a positive electrode for a lithium ion secondary battery which includes a positive electrode active material layer including a positive electrode active material that is provided to at least one surface of a positive electrode current collector. The positive electrode active material includes a lithium nickel cobalt manganese composite oxide mixture containing two or more kinds of lithium nickel cobalt manganese composite oxides. An average primary particle diameter of the lithium nickel cobalt manganese composite oxide mixture is in a range of 0.4 micrometers or more and 2 micrometers or less. An average secondary particle diameter of the lithium nickel cobalt manganese composite oxide mixture is in a range of 4 micrometers or more and 12 micrometers or less. The positive electrode active material layer includes a conductive agent in a range of 1 to 5% based on a weight of the positive electrode active material layer.
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 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
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 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 4/02 - Electrodes composed of, or comprising, active material
94.
Roll electrode and method for manufacturing roll electrode
A roll electrode is provided with a core, an electrode, a fixing part and a regulating part. The core extends in an axial direction and has a substantially circular outer circumference. The electrode has an expansion coefficient lower than that of the core. The electrode wound into a roll shape on the outer circumference of the core. The fixing part is fixed to an end portion from which the electrode starts being wound around the core. The regulating part regulates the axial movement of the electrode wound into the roll shape with respect to the core.
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 4/1395 - Processes of manufacture of electrodes based on metals, Si or alloys
H01M 4/70 - Carriers or collectors characterised by shape or form
H01M 4/02 - Electrodes composed of, or comprising, active material
95.
Positive electrode mixture for secondary battery, method for manufacturing positive electrode for secondary battery, and method for manufacturing secondary battery
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
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 4/525 - 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
A busbar module includes a busbar holding plate and a busbar cover attached to the busbar holding plate. The busbar holding plate includes a busbar holding face and a bearing including a hole and a wall to define the hole. The busbar cover includes protrusions protruding toward each other in the axial direction at positions corresponding to the hole. The protrusions are opposed to each other with a gap less than a dimension of the hole in the axial direction. The protrusions are disposed in the hole to rotate the busbar cover about the protrusions between a covering position and an uncovering position. The busbar cover is flexible to deform such that the gap expands to allow the wall to pass through the gap during attachment of the bulbar cover to the busbar holding plate and restores its original shape when passing of the wall through the gap is complete.
H01M 2/20 - Current-conducting connections for cells
H01R 25/16 - Rails or bus-bars provided with a plurality of discrete connecting locations for counterparts
H01M 2/10 - Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
97.
Thickener powder for lithium-ion battery, water-based electrode slurry, electrode for lithium-ion battery, lithium-ion battery, method for manufacturing water-based electrode slurry for lithium-ion battery, and method for manufacturing electrode for lithium-ion battery
Thickener powder for a lithium-ion battery of the present invention is thickener powder that is used to thicken a water-based electrode slurry for a lithium-ion battery, the thickener powder includes a cellulose-based water-soluble polymer, and a content of a water-insoluble component in the thickener powder, which is calculated from Condition 1, is equal to or less than 1.0% by mass.
(Condition 1: The thickener powder is dissolved in water, thereby obtaining a thickener aqueous solution having a concentration of 1.3% by mass. Next, the thickener aqueous solution is filtered using a filter having an average pore diameter of 1 μm. Next, the water-insoluble component remaining on the filter is dried, and a mass of the water-insoluble component is measured. Next, the content of the water-insoluble component in the thickener powder is calculated.)
A lithium ion secondary battery element includes: a positive electrode that includes a positive electrode current collector including a positive electrode active material applied part where a positive electrode active material is applied to form a positive electrode active material layer, and including a positive electrode active material non-applied part where the positive electrode active material is not applied, the positive electrode active material layer including a positive electrode active material layer flat part and a positive electrode active material layer thin part that is thinner than the positive electrode active material layer flat part, and the positive electrode further including an insulating member that covers at least a part of the positive electrode active material layer thin part and at least a part of the positive electrode active material non-applied part; a separator; and a negative electrode that includes a negative electrode current collector including a negative electrode active material applied part where a negative electrode active material is applied to form a negative electrode active material layer, and including a negative electrode active material non-applied part where the negative electrode active material is not applied, wherein: the positive electrode, the separator, and the negative electrode are stacked in this order; and the positive electrode active material non-applied part and the negative electrode active material non-applied part face each other through the separator.
H01M 4/02 - Electrodes composed of, or comprising, active material
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 10/04 - Construction or manufacture in general
A battery pack has a cell group and a bus bar. The cell group is stacking a plurality of unit cells in a thickness direction. The unit cells each includes a cell body having a power generation element and a flat shape, and an electrode tab protruding out from the cell body. The electrode tabs have distal end portions bent in a stacking direction of the unit cells. The flat plate shape bus bar connects the distal end portions of the electrode tabs of the unit cells while facing the distal end portions, and electrically connects the electrode tabs of at least two of the unit cells with each other.
A battery pack includes battery modules and a base member on which the battery modules are mounted. The battery modules include a plurality of unit cells are stacked in a thickness direction, have a flat shape and positive and negative terminals for transferring input and output of electric power. The terminals are disposed on an opposite side of the base member side in the battery module. The unit cells include a cell body that includes a power generation element and an electrode tab. The battery module includes a pair of first cover members in the stacking direction and a pair of second cover members in a direction that intersects with the stacking direction and that intersects with a direction in which the electrode tab extends. The second cover members are joined to the first cover members while the stacked unit cells are pressurized in the stacking direction.
patents
