There is disclosed herein a computer-implemented method for determining alignment of a stack of electrode sheets comprising obtaining a first and second image of the stack, determining distances between apparent edges of the imaged sheets, and determining an alignment based on these distances, and the known angles along which the first and second images were taken. A further method is disclosed, additionally comprising the capture of the first and second images. A system is also disclosed, for carrying out the methods.
H01M 10/04 - Construction or manufacture in general
G01B 15/00 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
abcdd, wherein A is sodium, 1 < a ≤ 2, M and M' are individually one or more transition metals, 0 < b < 2, 1 ≤ c < 2, and 1 ≤ d < 2; - a negative electrode comprising a carbon-based sodium inserting material; - a separator, and - an electrolyte comprising a sodium salt, an organic carbonate-based solvent comprising at most 50 wt.% of cyclic organic carbonate, a first additive, and a second additive comprising an organic sulfate, wherein said first additive is a cyclic carbonate according to formula (I) or formula (II) and different from said cyclic organic carbonate in said organic carbonate-based solvent.
A secondary cell 100 is provided comprising a housing 102, and an electrode assembly 104 arranged in the housing 102. The secondary cell 100 further comprises a current collector plate 106 directly connected to an electrode 105 of the electrode assembly, and a lid structure 108 which comprises a lid plate 110 and a terminal part 112. A surface portion of the terminal part is configured for attachment to an external load. The terminal part 112 is provided with at least one fracturable portion 124 outside the surface portion configured for attachment to the external load, and the terminal part 112 is directly connected to the current collector plate 106.
The present disclosure generally pertains to production of rechargeable battery cells, commonly called secondary cells. More specifically, the disclosure relates to inline gas analysis measurements in a formation process for secondary cells. According to a first aspect the disclosure relates to an arrangement 2 for inline gas analysis measurements in a formation process for secondary cells 1. The arrangement 1 comprises a gas analysis container 22, a plug extraction mechanism 21, and a gas analyser 27. The gas analysis container comprising a sample inlet 23 designed to form fluid tight connection to an opening 12 of a secondary cell 1 to be tested, and an outlet 26. The plug extraction mechanism designed to pull a plug 11 arranged to seal the opening 12, while the opening 12 is connected to the sample inlet 23 of the gas analysis container 22, whereby formation gas residing inside the analysis container 22 is exhausted through the opening 12 and flows into the gas analysis container 22. The gas analyser 27 arranged to be connected to the outlet 26 of the gas analysis container, whereby gas spectra of the formation gas in the analysis container can be analysed. The disclosure also pertains to a corresponding method.
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
A cylindrical secondary cell (100) is provided comprising a housing (102) with an end surface (103). The cell further comprises an electrode assembly (204) arranged in the housing (102), and a current collector plate (106) connected to an electrode (105) of the electrode assembly (204). The end surface (103) is provided with at least one fracturable portion (124), which is configured to break when the pressure in the housing (102) reaches a threshold value. The current collector plate (106) is provided with at least one flap (202), which is configured to bend toward the end surface when the fracturable portion (124) breaks, such that one or more openings are formed in the current collector plate (106).
A cylindrical secondary cell (100) comprising a cylindrical housing (102) comprising a first end 104 and an opposing second end (106), a first terminal (110) at the first end, a second terminal electrically insulated from the first terminal, an electrode assembly within the cylindrical housing, and a current collector electrically interconnecting the electrode assembly and the first terminal. The first end includes a first end breakable portion (120) configured to rupture to provide an opening in the first end if the pressure within the cylindrical housing reaches a threshold value. The current collector includes a first current collector part (124) directly electrically connected to the electrode assembly, a second current collector part (126) directly electrically connected to the first terminal, and a current collector breakable portion interconnecting the first current collector part and the second current collector part. The current collector breakable portion is configured to be broken by the rupture of the first end breakable portion to disconnect the first current collector part and the second current collector part.
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
H01M 50/578 - Devices or arrangements for the interruption of current in response to pressure
There is disclosed herein a method for preparing an electrode for a sodium-ion secondary cell, comprising the steps of: applying an electrode coating (204) along a coating axis (c) on an electrode substrate sheet (202) to form a coated substrate sheet, the electrode coating (204) comprising an active electrode material wherein the active electrode material comprises one of hard carbon or a Prussian Blue analogue; cutting the coated substrate sheet across the coating axis (c) into a plurality of portions (210); and calendering a portion of the plurality of portions, wherein the calendering comprises applying pressure with at least one roller (212) having a pressure- applying axis (p) aligned with the coating axis (c). Among other benefits, the risk minimization of damage to the electrode substrate is achieved. Also disclosed herein is an electrode prepared by the aforementioned method, a sodium-ion cell comprising such an electrode, a battery system comprising such a cell, and a vehicle comprising such a battery system.
There is disclosed herein a venting arrangement (2000, 3000) and a terminal assembly (100, 200, 300) configured to seal an opening (534o) in a casing (534) of a cylindrical secondary cell (4000, 5000), wherein the terminal assembly (100, 200, 300) comprises a venting channel (130, 230, 330), and the venting channel (130, 230,330) is configured to vent gases generated upon a failure of the cylindrical secondary cell (4000, 5000), the venting arrangement (2000, 3000) comprising: the terminal assembly (100, 200, 300), and a failure vent (2100) arranged to block the venting channel (130, 230, 330) and configured to rupture in response to an internal pressure of the cylindrical secondary cell (4000, 5000) exceeding a threshold.
H01M 50/179 - Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for cells having curved cross-section, e.g. round or elliptic
The disclosure provides a non-aqueous electrolytes providing improved long-term storage-stability at elevated temperature In particular, the electrolyte is suitable for use in cells wherein the cathode active material has a high nickel content.
This disclosure presents an electrode lead plate (6) for a cylindrical secondary cell (1) comprising a terminal part (4) and an electrode roll (3) comprising a conductive sheet (3a). The electrode lead plate (6) comprises an inner contact region (6c) configured to be arranged in direct electrical contact with the terminal part (4), an outer contact region (6e) configured to be arranged in direct electrical contact with the conductive sheet (3a), and a fuse region (6d). Further, a terminal part (4) and a cylindrical secondary cell (1), as well as uses and methods of manufacture, are presented.
H01M 50/559 - Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
H01M 10/04 - Construction or manufacture in general
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
H01M 50/54 - Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
H01M 50/583 - Devices or arrangements for the interruption of current in response to current, e.g. fuses
The disclosure relates to a method of preparing an electrode assembly for a sodium ion cell, comprising a cellulose separator The properties of the cell may be improved by optimising the drying process of the electrode assembly by measuring and analysing the colour of the cellulose separator. In particular, there is provided a method of preparing an electrode assembly comprising a cellulose separator and a Prussian Blue Analogue as a cathode.
The present disclosure relates to an improved process for forming a cathode active layer comprising a Prussian blue analogue (PBA) material on a conductive foil. In particular, cathodes with consistent and homogenous coatings from slurries comprising PBA material dispersed in aqueous solvents are obtained.
The present disclosure relates to high performance sodium-ion cells. In particular, the sodium-ion cells comprises a cathode with a cathode active layer having a very low water content.
H01M 4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
H01M 4/1397 - Processes of manufacture of electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
14.
SECONDARY CELL HAVING LOW COBALT CATHODE ACTIVE MATERIAL AND HF-GETTERING AGENT
The present disclosure relates to secondary lithium-ion cells suitable for use at high voltage. The cells comprise a cathode active material which is stabilised by an HF gettering agent.
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 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 10/0568 - Liquid materials characterised by the solutes
There is disclosed herein a method for preparing an electrode for a sodium-ion secondary cell comprising the steps of providing an aluminium sheet configured to act as a current collector in the electrode; applying an electrode coating comprising an active electrode material on the aluminium sheet to form a coated aluminium sheet, and directing a laser beam onto the electrode coating of the coated aluminium sheet to thereby cut the coated aluminium sheet to a desired electrode shape.
The disclosure provides a composition for an insulating edge coating comprising a ceramic material and a polyurethane or polyurethane urea binder The disclosure also provides an edge coating of said material and an electrode comprising the edge coating.
A secondary cell comprising an anode, a cathode, an electrolyte, and optionally a separator, characterized in that the anode comprises a substrate and a lithium ion storage layer comprising particles, wherein the lithium ion storage layer is deposited on the substrate; a method for its manufacturing; and a vehicle comprising such secondary cell.
The invention relates to a secondary cell comprising an anode, a cathode, optionally a separator, and an electrolyte, characterized in that the anode comprises an active material or composition of active materials, wherein at least one active material or composition of active materials functions as a current collector, wherein the active material or composition of active materials comprises carbon, silicon, and/or metal oxide(s), and wherein the anode does not comprise any additional current collector. A vehicle comprising said secondary cell is also claimed.
The invention relates to a secondary cell comprising an anode, a cathode, optionally a separator, and an electrolyte, characterized in that the anode comprises particles in multiple layers.
According to an aspect of the present inventive concept, there is provided a method (1000) for manufacturing a cylindrical battery cell (100), the cylindrical battery cell (100) comprising a can (110) for housing an electrode roll (120) and a current collector (130), the current collector (130) having a central region (132) for attaching to the electrode roll (120), and a peripheral portion (134) extending axially away from the electrode roll (120), the method comprising: fastening (1100) the central region (132) of the current collector (130) at an end of the electrode roll (120); arranging (1200) the current collector (130), and the electrode roll (120) fastened thereto, in the can (110); beading (1300) the can (110) to form a beading groove (114); providing (1400) counter-pressure during beading of the can (110) using a down-holder (200), the down-holder (200) having a cavity (206) in which at least the peripheral portion (134) of the current collector (130) is arranged during the beading (1300); and pressing (1500) the peripheral portion (134) of the current collector (130) radially outwards to thereby bring the peripheral portion (134) of the current collector (130) into contact with the beading groove (114).
H01M 10/04 - Construction or manufacture in general
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
H01M 50/167 - Lids or covers characterised by the methods of assembling casings with lids by crimping
H01M 50/169 - Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
H01M 50/559 - Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
The disclosure provides a method of forming a separator on an electrode of a sodium ion cell, and to an electrode/separator composite and to a cell comprising said separator. In particular, the separator is made using methods which dispose a cellulose based separator layer directly onto an electrode.
A battery cell, comprising: an electrode assembly comprising a connective tab for forming an electrical connection extending from a first side of the electrode assembly and comprising a first side edge and a second side edge separated by a distal edge; a current collector extending along the first side of the electrode assembly configured to connect to the connective tab for electrically coupling the connective tab; an insulating element extending along the first side of the electrode assembly comprising a main body having a first peripheral ridge extending longitudinally from a first side of the main body, a second peripheral ridge extending longitudinally from an opposed, second side of the main body, and a third peripheral ridge extending between first and second peripheral ridges, the third peripheral ridge configured to provide for electrical insulation of one of the first and second side edge from the casing.
H01M 10/04 - Construction or manufacture in general
H01M 50/103 - Primary casingsJackets or wrappings characterised by their shape or physical structure prismatic or rectangular
H01M 50/176 - Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for prismatic or rectangular cells
H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
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
A cylindrical battery cell comprising: a can, which provides a first battery terminal of the cell; an electrode assembly within the can; a battery terminal part, which provides a second battery terminal of the cell; a current collecting disc that is electrically connected to both the electrode assembly and the battery terminal part; an electrical insulation disc that sits between the can and the current collecting disc in order to galvanically isolate the can from the current collecting disc; and wherein the electrical insulation disc has one or more protrusions that extend axially towards the current collecting disc in order to define one or more cavities between the electrical insulation disc and the current collecting disc.
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 10/04 - Construction or manufacture in general
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/184 - Sealing members characterised by their shape or structure
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
24.
LITHIUM-DOPED ELECTRODE IN AN ELECTRODE ROLL, AND A SECONDARY CELL
A negative electrode material (2, 5) adapted for an electrode assembly (10), and adapted to be provided onto on at least one side of a conductive substrate (1, 4), wherein the negative electrode material comprises SiOx and particulate lithium metal in a range of about 5 to 30 wt.% in total solid component after drying the electrode, and in that said particulate lithium metal is encapsulated with a polymeric material or substance.
A method of assembling a battery cell comprising: receiving a jelly-roll comprising an anode layer, a cathode layer and at least one separator layer between the anode and cathode layer, the jelly-roll comprising a substantially cylindrical body having a first end, at which one or more cathode layer connectors project that couple to the cathode layer, and a second end, opposed the first end; applying at least an insulation tape, comprising an electrically insulating tape, around the cylindrical body such that a first part of the insulation tape winds around the cylindrical body to, at least in part, hold the jelly-roll in a rolled state, and a second part of the insulation tape overhangs the first end; and folding the second part of the insulation tape to at least partially cover the first end.
H01M 10/04 - Construction or manufacture in general
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
A battery cell imaging apparatus comprising: an x-ray source (101) configured to provide a first x-ray beam (102) in a first direction and a second x-ray beam (103) in a second direction; a first manipulator (108) to present at least a first part of the first battery cell (106) to the first x-ray beam at a plurality of imaging angles; a second manipulator (109) configured to present at least a first part of a second battery cell (107) to the second x-ray beam at a plurality of imaging angles; a first detector (104) configured to detect the first x-ray beam having passed through the first battery cell when in use and provide an output for CT imaging of the first battery cell; and a second detector (105) configured to detect the second x-ray beam having passed through the second battery cell when in use and provide an output for CT imaging of the second battery cell.
G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
G01N 23/083 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
27.
COMPOSITE CATHODE AND METHODS FOR FORMING THE SAME
The present disclosure relates to a composite cathode for a lithium-ion cell comprising a cathode active layer and a cathode coating of zinc oxide. The cathode active layer comprises composite particles, which comprise a core of cathode active material surrounded by a shell of stabilising material. The combination of composite particles and a cathode coating is found to improve the battery performance at higher voltages.
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
The present disclosure relates to a solvent-free composition, electrodes formed from said composition, cells formed from said electrode, battery systems including said cell and vehicles containing said battery system. The present disclosure also relates to methods of preparing said composition and electrode. The composition contains cathode active material, lithiated polymer, nitrile rubber and optional conductive additive. The electrodes formed using the composition show excellent electrochemical performance and stability including long cycle life, high capacity retention, good flexibility and good adhesion.
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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 4/525 - 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
The present disclosure relates to a solvent-free composition, electrodes formed from said composition, cells formed from said electrode, battery systems including said cell and vehicles containing said battery system. The present disclosure also relates to methods of preparing said composition and electrode. The composition contains cathode active material, lithiated polymer, nitrile rubber and optional conductive additive. The electrodes formed using the composition show excellent electrochemical performance and stability including long cycle life, high capacity retention, good flexibility and good adhesion.
H01M 4/02 - Electrodes composed of, or comprising, active material
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 4/505 - 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
This disclosure presents a cylindrical secondary cell (1) comprising a cylindrical enclosure (2) comprising a first enclosure end (2a) and a second enclosure end (2b). The cell (1) further comprises an electrode roll (3) comprising first and second conductive sheets (3a, 3b) comprising electrode coatings, the electrode roll (3) being arranged in the cylindrical enclosure (2), a first terminal (4) arranged on the first enclosure end (2a) and electrically connected to the first conductive sheet (3a), and a second terminal (5) arranged on the first enclosure end (2a) and electrically connected to the second conductive sheet (3b) via the cylindrical enclosure (2). An electrode lead plate (6) that is in direct electrical contact with the second conductive sheet (3b) and with the cylindrical enclosure (2) is provided. The disclosure further presents an electrode lead plate (6) and a method of manufacturing a cylindrical secondary cell (1).
H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
H01M 50/55 - Terminals characterised by the disposition of the terminals on the cells on the same side 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
There is disclosed herein a cylindrical secondary cell (100), a method (6000) of manufacturing the secondary cell (100), and a lid (130) for the secondary cell (100). The secondary cell (100) comprises a cylindrical can (107) housing an electrode assembly (106), the cylindrical can (107) having an open end (107b) and a lid (130) configured to close the open end (107b) of the cylindrical can (107). According to particularly advantageous aspects of the present disclosure, the lid (130) comprises a clamping portion (111) configured to clamp around an edge (107e) of the open end (107b) of the cylindrical can (107) to thereby close the open end (107b) of the cylindrical can (107), rather than the can itself comprising a clamping portion to clamp around the lid.
H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
H01M 10/04 - Construction or manufacture in general
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/169 - Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
H01M 50/188 - Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
32.
A CYLINDRICAL SECONDARY CELL LID COMPRISING A PETAL VENT FEATURE
This disclosure presents a cylindrical secondary cell lid (1) for a cylindrical secondary cell (100), the cylindrical secondary cell lid (1) comprising a groove pattern (10) that is configured to provide a vent opening in the cylindrical secondary cell lid (1) if a pressure to which the cylindrical secondary cell lid (1) is subjected reaches a threshold value. The groove pattern (10) defines a center portion (20), a first off-center portion (31), a second off-center portion (32), and a third off-center portion (33), wherein the off-center portions (31, 32, 33) extend from the center portion (20) and are respectively formed by two radial groove pattern sections (11a, 11b, 12a, 12b, 13a, 13b) and one circumferential groove pattern section (11c, 12c, 13c) that connects the two radial groove pattern sections (11a, 11b, 12a, 12b, 13a, 13b).
There is disclosed herein a saggar (100) configured for use in processing materials for secondary cells, comprising a tray construction having a base (102) and a plurality of walls (104) surrounding the base (102), wherein the base (102) and the plurality of walls (104) are respectively configured for enabling a replaceable removal of the base (102) from the plurality of walls (104). By providing a base (102) that is removable, the walls (104) of the saggar (100) can be reused, and only the base (102) can be swapped out. Also disclosed herein is a method (400) to replace the base (102) of such a saggar (100), and a method (600) of processing materials (M) for a secondary cell, using such a saggar (100).
There is disclosed herein a center pin (10) for a secondary cell, the center pin (10) comprising a length extending along an axis from a first end to a second end. The center pin comprises a first engagement portion arranged at the first end, wherein an inner surface (20) of the first engagement portion comprises an engagement profile (22) configured to engage with a torque-applying tool to thereby enable the center pin (10) to be rotated about the axis by the torque-applying tool.
The disclosure provides a coated lithium intercalation cathode active material for a lithiumion battery and a method of forming said coated cathode active material. In particular, the coated cathode active material comprises a coating of lithium iron manganese phosphate (LFMP) and conductive carbon. In some examples, the cathode material comprises lithium nickel manganese cobalt oxide (NMC) or lithium nickel cobalt aluminium oxide (NCA). The coated cathode active material of the disclosure is suitable for use in electrodes resulting in electrodes having a high energy density.
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
36.
ALKALINE SLURRY COMPOSITION, ELECTRODE COATING, BATTERY, MANUFACTURING PROCESSES, AND USES
The present invention relates to a slurry composition, and sodium battery electrode coating material comprising at least one electrode active material, at least one binder, at least one alkaline additive, and optionally at least one conductive agent, wherein said alkaline additive is selected from metal hydroxides, metal carbonates, metal bicarbonates, metal silicates, ammonia or ammonium hydroxide, metal amines, metal amides, metal hydrides, metal oxides, metal cyanides, or any combination thereof. The present invention further relates to electrodes, and batteries comprising said electrode active material or made of said slurry coating. The present invention further relates to methods of manufacturing the slurry composition, electrode coating material, electrodes, and batteries thereof.
There is disclosed herein a terminal assembly for a cylindrical secondary cell. In the terminal assembly, there is a rivet provided with an external portion configured to close an opening in a casing of the cylindrical cell and to be arranged substantially on the outside of the casing, and an internal portion configured to provide a direct electrical connection between an electrode roll in the secondary cell and the external portion. On the he internal portion there is a shaft configured to extend axially through the casing of the secondary cell from the external portion, and a current collecting portion joined to the shaft, configured to be in direct electrical contact with the electrode roll in the secondary cell, to thereby function as a current collecting plate in the secondary cell. Also disclosed is a cylindrical secondary cell and a method for manufacturing a cylindrica secondary cell.
There is disclosed herein a method for riveting a terminal rivet for a cylindrical secondary cell, wherein the terminal rivet comprises a head and a shaft extending from the head. The method comprises the steps of arranging the shaft of the terminal rivet axially through an opening in a casing of the secondary cell such that the head of the terminal rivet abuts an external surface of the casing to thereby form an external terminal for the secondary cell. The method further comprises the step of deforming the shaft against an internal surface of the casing, and deforming the head against the external surface of the casing towards the deformed shaft.
H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
H01M 50/179 - Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for cells having curved cross-section, e.g. round or elliptic
H01M 50/184 - Sealing members characterised by their shape or structure
H01M 50/188 - Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
H01M 50/531 - Electrode connections inside a battery casing
H01M 50/559 - Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
H01M 50/588 - 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
H01M 50/59 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
There is disclosed herein a terminal assembly for a cylindrical secondary cell comprising a hollow shaft having an axial through-hole, configured to extend axially through an opening in a casing of the secondary cell to electrically contact a current collecting plate of the secondary cell at a first end of the hollow shaft, and a cap arranged at a second end of the shaft, configured to close and seal the axial through-hole. There is further disclosed herein a cylindrical secondary cell comprising the terminFal assembly and a method of manufacturing the cylindrical secondary cell.
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/169 - Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
H01M 50/567 - Terminals characterised by their manufacturing process by fixing means, e.g. screws, rivets or bolts
The present disclosure relates to a terminal part for a cylindrical secondary cell. The terminal part comprises a shaft configured to extend axially through a casing of the secondary cell, wherein a first end of the shaft is configured to provide an electrical connection with an electrode roll in the secondary cell; and a head arranged at a second end of the shaft, configured to form an external terminal for the cylindrical secondary cell. The shaft comprises a ridged shaft portion on a lateral surface of the shaft, wherein said ridged shaft portion comprises at least one ridge extending around the lateral surface of the shaft.
H01M 50/559 - Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
B21D 53/20 - Making other particular articles rings, e.g. barrel hoops washers, e.g. for sealing
H01M 50/179 - Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for cells having curved cross-section, e.g. round or elliptic
H01M 50/188 - Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
H01M 50/531 - Electrode connections inside a battery casing
H01M 50/567 - Terminals characterised by their manufacturing process by fixing means, e.g. screws, rivets or bolts
A molded anode comprising an active material or a composition of active materials, wherein the anode comprises surface cavities with a depth corresponding to at least 10% of the thickness of the anode; a secondary cell comprising said anode; a method for its manufacturing; and a vehicle comprising such secondary cell.
This disclosure presents an electrode roll (10) for a secondary cell (100) comprising a liquid electrolyte, the electrode roll (10) comprising an electrically conductive sheet (1) rolled (1′) along its longitudinal axis (X) to form the electrode roll (10). The electrically conductive sheet (1) comprises a coated portion (2) provided with an electrode coating to form a positive or a negative electrode, and a contact portion (3) protruding from the coated portion (2) and bent (3′) to form an electrical contact surface (11) at an end surface of the electrode roll (10). The contact portion (3) does not extend along the entire length of the electrically conductive sheet (1), the electrical contact surface (11) is annular in shape and only forms a part of the end surface (13) of the electrode roll (10), and the electrical contact surface (11) forms 30 to 80 percent of the end surface (13) of the electrode roll (10). An electrode disc (20) is also presented.
H01M 50/179 - Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for cells having curved cross-section, e.g. round or elliptic
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
H01M 50/559 - Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
There is disclosed herein a one-piece gasket for a cylindrical secondary cell, comprising a first section configured to form a seal between a terminal assembly of the secondary cell and a casing of the secondary cell, and a second section configured to extend between and thereby electrically insulate an internal surface of the casing and a current collector.
The present disclosure relates to a process for recovering an active material concentrate from batteries, in particular secondary lithium-ion batteries, comprising a repeated sequence of size-reduction and material separation, to a battery active material concentrate and to a use of said battery active material concentrate in a battery manufacturing process.
This disclosure presents an electrode roll (10) for a secondary cell (100) comprising a liquid electrolyte, the electrode roll (10) comprising an electrically conductive sheet (1) rolled (1′) along its longitudinal axis (X) to form the electrode roll (10), the electrically conductive sheet (1) comprising a coated portion (2) provided with an electrode coating to form a positive or a negative electrode, and a contact portion (3) protruding from the coated portion (2) and bent (3′) to form an electrical contact surface (11) on a first end surface (13) of the electrode roll (10), wherein the electrical contact surface (11) extends only along a sector (C) of the first end surface (13). An electrode disc (20) is also presented.
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
A binder for a cathode in a secondary cell, wherein the binder comprises an elastomeric polyurethane; a cathode material as well as a cathode comprising said binder; a method to produce said cathode; a secondary cell comprising said cathode; and a vehicle comprising said secondary cell.
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 4/02 - Electrodes composed of, or comprising, active material
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 binder for a cathode in a secondary cell, wherein the binder comprises an elastomeric polyurethane; a cathode material as well as a cathode comprising said binder; a method to produce said cathode; a secondary cell comprising said cathode; and a vehicle comprising said secondary cell.
The present invention relates a system (30) comprising a plurality of battery modules (10) and a cold plate (30) for cooling the battery modules. Each battery module comprises a plurality of stacked battery cells (11) and two side plates (12), each side plate having a protruding lower edge (14) supporting a bottom surface (15). The cold plate comprises a base plate (31) provided with cooling channels, wherein the base plate (31) is thermally connected to the bottom surface (15) of the battery cells (11) in each battery module (10); an inlet port (24) for feeding cooling media via the cooling channels to an outlet port (26), and at least one cut-out (32) configured to house one of the protruding lower edges (14) of the side plates (12).
There is disclosed herein a cylindrical secondary cell and a method of manufacturing thereof. The cell comprises a cylindrical casing (102) extending along an axis (A) from a first end (102a) to a second end (102b), the first end (102a) being an open end of the casing (102), an electrode roll (104) housed within the casing (102), and a lid (106) closing the open end (102a) of the casing (102). Advantageously, the edge of the open end (102a) is bent inwards to provide a flange (102d) comprising an angled surface (102e) sloping towards the second end (102b) of the casing (102), and the lid (106) is configured to be attached to the flange (102d).
H01M 50/169 - Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
H01M 10/04 - Construction or manufacture in general
There is disclosed herein a current collector (114), a method (300) of manufacturing such a current collector (114), and a battery cell (100) comprising such a current collector (114). The current collector (114) comprises a first plate (114a) having a first side (114a) and a second side (114w) adjacent the first side (114l), a second plate (114b) extending from the first side (114w) of the first plate (114a) and perpendicular to the first plate (114a), and a third plate (114c) extending from the second side (114l) of the first plate (114a) and away from the second plate (114b).
A process for generating a metal sulfate that involves crystallizing a metal sulfate from an aqueous solution to form a crystallized metal sulfate in a mother liquor with uncrystallized metal sulfate remaining in the mother liquor; separating the crystallized metal sulfate from the mother liquor; basifying a portion of the mother liquor to convert the uncrystallized metal sulfate to a basic metal salt; and using the basic metal salt upstream of crystallizing the metal sulfate. So crystallized, the generated metal sulfate may be battery-grade or electroplating-grade.
There is disclosed herein a process (400) for shaping electrode tabs (112) extending from an edge of an electrode assembly (110), comprising bending (410), in a first direction, an inner section (112b) of the electrode tabs (112) proximal the edge of the electrode assembly (110), and bending (420), in a second direction opposite the first direction, an outer section (112c) of the electrode tabs (112), the outer section (112c) being further from the edge of the electrode assembly (110) than the inner section (110b). There is further disclosed herein an electrode assembly (110) having tabs (112) shaped according to such a process (400) and a battery cell (100) comprising such an electrode assembly (110), a method for manufacturing such a battery cell (100), an apparatus (200) for performing such a process (400), and a battery cell (100) having an electrode assembly (110) with shaped tabs (112).
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
H01M 50/54 - Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
H01M 50/553 - Terminals adapted for prismatic, pouch or rectangular cells
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
There is disclosed herein a terminal rivet (100), a cylindrical secondary cell (6000) comprising such a terminal rivet (100), and a method (1000) of manufacturing such a secondary cell (6000). The rivet (100) comprises a shaft (110) configured to extend axially (A) through a casing of the secondary cell to thereby electrically contact a current collecting plate of the secondary cell at a first end (110a) of the shaft (110) and a head (120) arranged at a second end (110b) of the shaft (110), configured to form an external terminal for the cylindrical secondary cell. The head (120) comprises a central region (122) and a first welding region (124) arranged around said central region (122), wherein the first welding region (124) is recessed relative to said central region (122). The first end (110a) of the shaft (110) comprises a second welding region (114), aligned along the axis (A) of the shaft with the first welding region (124), and recessed towards the first welding region (124).
H01M 50/566 - Terminals characterised by their manufacturing process by welding, soldering or brazing
H01M 10/04 - Construction or manufacture in general
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
An electrode plate assembly for a secondary battery module is disclosed, comprising a plurality of cells (100) arranged in a vertical stack (10). Each cell of the stack comprises a positive electrode plate (110), a negative electrode plate, and a separator. The separator is interposed between the positive electrode plate and the negative electrode plate and configured allow ions to move between the positive electrode plate and the negative electrode plate. The electrode plate assembly further comprises a plurality of contacting means (140) for electrical monitoring of the cells, wherein each of the plurality of contacting means is electrically connected to at least one of the positive and negative electrode plates of a respective one of the cells and arranged to protrude laterally from a side edge (101, 102, 103) of the cell. The contacting means are distributed spatially along a width (W) of the stack.
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 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
H01M 50/296 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by terminals of battery packs
H01M 50/505 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing comprising a single busbar
55.
Method and control arrangement for monitoring coating quality of secondary cells
A method and control arrangement for monitoring coating quality during production of electrodes of secondary cells. The production of electrodes comprises a coating process including coating slurry onto a conductive substrate and drying the coated conductive substrate, and a calendering process. The method comprises measuring (S1), during the coating process and/or calendering process, power consumption of one or more electrical components used for performing the coating process and/or calendering process and evaluating (S3) the coating quality by analyzing the measured power consumption using coating quality criteria, wherein the coating quality criteria defines coating quality of the secondary cells based on measured power consumption of the one or more electrical components.
A secondary cell (10) is disclosed, comprising a first end plate (131) and a second end plate (132). The first end plate comprises a contacting tab (121) configured to provide an electrical contact between a first electrode of an electrode assembly and a first terminal, as well as a first spacer arrangement (134) arranged between the first end plate and the electrode assembly and configured to secure the electrode assembly in a length direction. The second end plate comprises a current collector (122) and a second spacer arrangement (144), wherein the second spacer arrangement is arranged to secure the electrode assembly in the length direction and the current collector to secure the electrode assembly in a direction orthogonal to the length direction. A method for assembling such a cell is also disclosed.
H01M 50/166 - Lids or covers characterised by the methods of assembling casings with lids
H01M 50/474 - Spacing elements inside cells other than separators, membranes or diaphragmsManufacturing processes thereof characterised by their position inside the cells
H01M 50/548 - Terminals characterised by the disposition of the terminals on the cells on opposite sides of the cell
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 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
A secondary cell is disclosed. comprising an electrode assembly and a casing accommodating the electrode assembly. The casing comprises a body. a first end plate and a second end plate. The first end plate comprises a contacting tab configured to provide an electrical contact between an electrode of the electrode assembly and a first terminal. Further. a spacer arrangement is provided between the first end plate and the electrode assembly and configured to secure the electrode assembly in a length direction of the body. A method for assembling such a cell is also disclosed.
H01M 50/474 - Spacing elements inside cells other than separators, membranes or diaphragmsManufacturing processes thereof characterised by their position inside the cells
H01M 50/103 - Primary casingsJackets or wrappings characterised by their shape or physical structure prismatic or rectangular
H01M 50/477 - Spacing elements inside cells other than separators, membranes or diaphragmsManufacturing processes thereof characterised by their shape
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
H01M 50/548 - Terminals characterised by the disposition of the terminals on the cells on opposite sides of the cell
An electrode plate assembly for a secondary battery module is disclosed, comprising a plurality of cells (100) arranged in a vertical stack (10). Each cell of the stack comprises a positive electrode plate (110), a negative electrode plate, and a separator. The separator is interposed between the positive electrode plate and the negative electrode plate and configured allow ions to move between the positive electrode plate and the negative electrode plate. The electrode plate assembly further comprises a plurality of contacting means (140) for electrical monitoring of the cells, wherein each of the plurality of contacting means is electrically connected to at least one of the positive and negative electrode plates of a respective one of the cells and arranged to protrude laterally from a side edge (101, 102, 103) of the cell. The contacting means are distributed spatially along a width (W) of the stack.
H01M 50/569 - Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
H01M 10/04 - Construction or manufacture in general
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 50/103 - Primary casingsJackets or wrappings characterised by their shape or physical structure prismatic or rectangular
H01M 50/176 - Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for prismatic or rectangular cells
H01M 50/548 - Terminals characterised by the disposition of the terminals on the cells on opposite sides of the cell
H01M 50/553 - Terminals adapted for prismatic, pouch or rectangular cells
60.
AQUEOUS CATHODE SLURRY COMPOSITION FOR CELL CATHODE
The present disclosure relates to a binder system for an electrode, a slurry composition comprising said binder composition for use in forming electrodes, electrodes formed from the same and cells formed from said electrode. The binder system contains a binder polymer, an acidic polysaccharide, and a lithiated polymer. The electrodes formed using the binder system show excellent electrochemical performance and stability including long cycle life, high capacity retention, good flexibility and good adhesion.
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
A cylindrical secondary cell (10) comprises a conductive sheet (20, 30) with a longitudinal direction, one or more coatings (24, 26) formed on the conductive sheet (20, 30), wherein the conductive sheet (20, 30) comprises a portion free of coating along an end side of the conductive sheet (20, 30), a plurality of notches (50) formed on the end side of the conductive sheet (20, 30) which is free of coating, wherein the notches (50) start on the edge of the conductive sheet (20, 30) and extend in the direction towards the coating (24, 26), and wherein the notches (50) are formed with a linear portion (52) and an end portion (54), wherein the end portion comprises a rounded cut out or is formed with a turn so that the end of the end portion is not directed towards the coating (24, 26), and that the part of the notches (50) closest to the coating (24, 26) is arranged within 2.5 mm or less from the coating (24, 26).
H01M 50/124 - Primary casingsJackets or wrappings characterised by the material having a layered structure
H01M 10/04 - Construction or manufacture in general
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
A battery assembly housing configured to receive a plurality of battery cells at respective predetermined locations wherein each battery cell includes a vent, wherein the battery assembly housing includes a cover plate having a slot that forms an opening in the cover plate and wherein the slot is configured and arranged to span a plurality of the vents of the battery cells, and wherein the slot includes a foam to one or more of absorb energy, receive material and receive gases ejected from one or more of the vents of the plurality of battery cells in the event of thermal runaway.
H01M 50/392 - Arrangements for facilitating escape of gases with means for neutralising or absorbing electrolyteArrangements for facilitating escape of gases with means for preventing leakage of electrolyte through vent holes
The disclosure is related to a non-aqueous electrolyte for a lithium-ion battery cell comprising alkyl propionate and a lithium salt according to formula (I) where b is the charge of the lithium salt anion, preferably b=1, m is a number from 1 to 4, preferably m is a number from 1 to 2, n is a number from 0 to 8, optionally n is a number from 0 to 4, optionally n is a number from 1 to 8, optionally n is a number from 1 to 4, q is 0 or 1, M is B or P, R1110420 20 arylene group or a halogenated form of these groups, optionally with other substituents and/or heteroatoms and/or form rings. R211042020 arylene group, or a halogenated form of these groups, optionally with other substituents and/or heteroatoms and/or form rings, X1is O, S or NR4, wherein R4is a halogen or an organic group. X2is O, S or NR4, wherein R4 is a halogen or an organic group. The disclosure is further related to a lithium-ion battery cell comprising the non-aqueous electrolyte.
The disclosure is related to a non-aqueous electrolyte for a lithium-ion battery cell comprising a first lithium salt, a second lithium salt, a third lithium salt, and a fluorinated organic carbonate. The first lithium salt is lithium bis(fluorosulfonyl)imide, LiFSI, and the second lithium salt is a lithium salt according to formula (I), where b is the charge of the anion, preferably b=1, m is a number from 1 to 4, preferably m is a number from 1 to 2, n is a number from 0 to 8, optionally n is a number from 0 to 4, optionally n is a number from 1 to 8, optionally n is a number from 1 to 4, q is 0 or 1, M is B or P, R111042020 arylene group, halogenated forms of these groups, optionally with other substituents and/or heteroatoms and/or form rings, R2110 42020 arylene group, halogenated forms of these groups, optionally with other substituents and/or heteroatoms and/or form rings, X1is O, S or NR4, X2is O, S or NR4, and R4 is a halogen or an organic group. The disclosure is further related to a lithium-ion battery cell comprising the non-aqueous electrolyte.
The present disclosure relates to an electrode assembly comprising a positive electrode plate comprising a positive electrode coating portion on which a positive electrode active material is coated and a positive electrode non-coating portion on which the positive electrode active material is not coated; a negative electrode plate comprising a negative electrode coating portion on which a negative electrode active material is coated and a negative electrode non-coating portion on which the negative electrode active material is not coated; and a separator interposed between the positive and the negative electrode plate; wherein the separator comprises a substrate and a coating layer disposed on at least one surface of the substrate, wherein the coating layer comprises organic particles and inorganic particles, wherein an amount of the organic particles is in the range from 1.5 to 5 wt. % related to a total weight of the organic particles and the inorganic particles in the coating layer; and to an electrochemical cell and lithium-ion secondary battery including such an electrode assembly.
The present disclosure generally pertains to secondary batteries and components thereof. More specifically, the disclosure relates to According to a first aspect the present disclosure relates to a cylindrical secondary cell (1) comprising a cylindrical can (2) having a can end wall (2a), a terminal part (4) and an isolating part (7). The terminal part (4) comprises a pin shaped body inserted into a terminal through-hole (2b) formed in the can end wall (2a). The isolating part (7) is arranged in the terminal through-hole (2b) to electrically isolate the can end wall (2a) from the terminal part (4). An inner corner (2d) that is formed where an inner peripheral surface (2c) meets an inner surface (2f) of the can end wall (2a), is blunted and has a surface free from edges having edge angles of less than 100 degrees. The disclosure also relates to a method for attaching a terminal part to the shaped can end wall (2a) in a process of assembling the cylindrical secondary cell (1).
H01M 50/567 - Terminals characterised by their manufacturing process by fixing means, e.g. screws, rivets or bolts
H01M 10/04 - Construction or manufacture in general
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/148 - Lids or covers characterised by their shape
H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
H01M 50/179 - Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for cells having curved cross-section, e.g. round or elliptic
H01M 50/188 - Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
H01M 50/198 - Sealing members characterised by the material characterised by physical properties, e.g. adhesiveness or hardness
H01M 50/559 - Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
H01M 50/586 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
H01M 50/59 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
67.
PRE-FABRICATED MOVABLE WALK-IN CHAMBER FOR TESTING SECONDARY CELLS
The present disclosure generally pertains to testing of secondary batteries. More specifically, the disclosure relates to a movable walk-in chamber for testing secondary cells. According to a first aspect, the present disclosure relates to a movable walk-in chamber for testing secondary cells comprising an enclosure, racking, and a plurality of cycler interfaces. The enclosure forms at least one thermally isolated temperature chamber. Furthermore, the enclosure comprises a walking aisle. The racking is arranged at inner walls of the enclosure along the walking aisle. Secondary cells can be inserted in the racking for testing and removed after testing. The plurality of cycler interfaces are arranged at outer walls of the enclosure. Each cycler interface comprises a power interface and one or more cell interfaces.
G01R 1/04 - HousingsSupporting membersArrangements of terminals
G01R 31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
68.
METHOD AND CONTROL ARRANGEMENT FOR MASS SCALE PRODUCTION TESTING OF SECONDARY CELLS
The present disclosure pertains to testing of rechargeable cells for use in batteries arranged in electrical vehicles. According to a first aspect the disclosure relates to method for evaluating cell health of secondary cells 1 in mass scale production testing. The method comprises obtaining manufacturing data (i.e. data analysis 41) and generating scanning data by scanning 42 an inside of the secondary cells. The method further comprises determining cell quality using a prediction algorithm, performing additional testing 43 on a selection of the scanned secondary cells and verifying, based on the additional testing, accuracy of the prediction algorithm. The method thereafter comprises evaluating cell health of the individual cells 1 based on the cell quality determined using the prediction algorithm. The disclosure also relates to a corresponding control arrangement.
G01R 31/385 - Arrangements for measuring battery or accumulator variables
G01R 31/01 - Subjecting similar articles in turn to test, e.g. "go/no-go" tests in mass productionTesting objects at points as they pass through a testing station
G01R 31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
G01R 31/367 - 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
This disclosure relates to an electrode assembly for an energy storage device. The electrode assembly comprises a first inner active layer and a first outer active layer. The first inner active layer and the first outer active layer each comprise a conductive additive and a binder. The conductive additive in the first inner active layer and the first outer active layer are different, and/or the ratio of conductive additive to binder in the first inner active layer is different to the ratio of conductive additive to binder in the first outer active layer.
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 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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
H01M 10/04 - Construction or manufacture in general
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
70.
A COVERED TERMINAL RIVET FOR A SECONDARY CELL AND A METHOD OF MANUFACTURING A SECONDARY CELL
This disclosure presents a terminal rivet (1) for a secondary cell (50), the terminal rivet (1) comprising a rivet part (10) comprising a weld recess (12) through which the rivet part (10) may be welded and electrically connected to an internal component (55) of the secondary cell (50), and a cover part (20) configured to be attached to the rivet part (10) to cover the weld recess (12) of the rivet part (10). The disclosure further presents a method of manufacturing a secondary cell.
The present disclosure provides a method of discharging a battery, comprising the steps: applying an initial discharge current to the battery, and repeatedly modifying the discharge current according to a predetermined schedule, so that the battery is maintained in a safe operating condition while being discharged. Further provided is a system for discharging a battery, comprising battery discharging means and a control unit, wherein the control unit is configured to control the battery discharging means to execute a method according to this disclosure, with a battery provided to the system. Also provided is a computer program product.
The present disclosure relates to an electrochemical cell having a stacked configuration and to a battery module comprising a plurality of said electrochemical cell, the cell comprising a positive electrode and a negative electrode, a separator arranged therebetween, and a sealant disposed between the positive electrode and the negative electrode, which comprises first and second adhesive layers and first and second scaling layers.
The disclosure provides a method for manufacturing an anode for a lithium-ion secondary cell, the method comprising the steps of mixing a chitosan with an acid comprising an H+ functional group, adding a conductive additive, a viscosity agent and an anode active material comprising silicon, and adding an acrylic emulsion additive having a glass transition temperature (Tg) of from -80 to 65 °C to the mixture obtained in step b). The acid comprising an H+functional group may be carboxylic acid. An anode and a lithium-ion cell comprising an anode is also provided.
A cylindrical secondary cell (10) comprising a cylindrical enclosure (11) having a lid (1), an electrode roll (20) arranged in the cylindrical enclosure (11), a current collector disc (15) to be arranged in direct electrical contact with the electrode roll (20), wherein the lid (1) or the current collector disc (15) comprises a number of recessed contact portions (2), the area of the recessed contact portions (2) being 50 to 80 percent of the total area of the lid (1), and wherein the current collector disc (15) is configured to be attached to the lid (1).
H01M 10/04 - Construction or manufacture in general
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
H01M 50/545 - Terminals formed by the casing of the cells
H01M 50/559 - Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
There is disclosed herein a cylindrical secondary cell (1) and a method of manufacture thereof. The cell comprises a cylindrical enclosure (2) for housing an electrode roll (20), comprising a first and second enclosure end (2a, 2b) and an enclosure sidewall (2c) extending therebetween, wherein at least one enclosure end (2b) is open, a lid (10), and a current collector disc (24) for arranging in direct electrical contact with the electrode roll (20). The cylindrical enclosure (2) comprises a reduced radius section (2r) at the open enclosure end (2b), the current collector disc (24) comprises a first flange section (24f) that is configured to abut the reduced radius section (2r) at an outer or inner surface thereof, and the lid (10) comprises a second flange section (10f) that is configured to surround the first flange section (24f) and the reduced radius section. The lid (10) and the current collector disc (24) are configured to be attached to the cylindrical enclosure (2) by the first and second flange sections (10f, 24f) being attached to the reduced radius section (2r).
H01M 10/04 - Construction or manufacture in general
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
H01M 50/169 - Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
H01M 50/179 - Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for cells having curved cross-section, e.g. round or elliptic
H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
This disclosure presents a cylindrical can (1) for a cylindrical secondary cell. The cylindrical can (1) extends along a longitudinal axis (LA) and comprises an opening (2) for jellyroll insertion, a top portion (10), a wall portion (20) and a transition area (15) between the top portion (10) and the wall portion (20). The wall portion (20) has a smaller thickness than the top portion (10), and the transition area (15) has a thickness which increases gradually from the wall portion (20) towards the top portion (10) by a slope value. The slope value is defined by a length of the transition area (15) with respect to a wall thickness change of the cylindrical can (1) in the transition area (15) and lies within the range of 5 to 120 over a length of at least 1.0 mm of the can.
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
This disclosure presents a cylindrical can for a cylindrical secondary cell. The cylindrical can extends along a longitudinal axis (LA) and comprises an opening at a proximal end of the cylindrical can for jellyroll insertion, and a top portion (10) comprising a cylindrical proximal zone (11), a cylindrical distal zone (12) and an intermediate zone (13) arranged and extending between the cylindrical proximal zone (11) and the cylindrical distal zone (12). Each one of the cylindrical proximal zone (11) and the cylindrical distal zone (12) has an inner circumference and an outer circumference, respectively, where a first distance (r1), from the inner circumference of the cylindrical proximal zone (11) to the longitudinal axis (LA) in a transverse direction, is greater than a second distance (r2), from the inner circumference of the cylindrical distal zone (12) to the longitudinal axis (LA) in the transverse direction. The intermediate zone (13) has an inner circumference and an outer circumference tapering between the respective inner and outer circumferences of the proximal zone (11) and the distal zone (12).
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 10/04 - Construction or manufacture in general
H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
H01M 50/167 - Lids or covers characterised by the methods of assembling casings with lids by crimping
There is disclosed herein a cylindrical secondary cell (1) and methods for manufacturing the cylindrical secondary cell. The cylindrical secondary cell comprises a cylindrical can (2) having a beading groove (3) formed in a wall of the cylindrical can (2) and arranged around the circumference of the cylindrical can (2), and a first conductive sheet (4), with first electrode coating (4a), wound to form a jelly roll (5) which is arranged in the cylindrical can (2), and wherein the first conductive sheet (4) comprises a portion free of first electrode coating (4a) which protrudes on a first end side (5a) of the jelly roll (5). The cylindrical secondary cell further comprises a current collector disc (6) which is electrically conductive and arranged at the first end side (5a) of the jelly roll (5) and in direct contact with at least part of the portion free of first electrode coating (4a) of the first conductive sheet (4), wherein the current collector disc (6) abuts the apex of the beading groove.
H01M 10/04 - Construction or manufacture in general
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
H01M 50/167 - Lids or covers characterised by the methods of assembling casings with lids by crimping
H01M 50/169 - Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
H01M 50/528 - Fixed electrical connections, i.e. not intended for disconnection
H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
H01M 50/559 - Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
H01M 50/566 - Terminals characterised by their manufacturing process by welding, soldering or brazing
A cylindrical secondary cell (10), comprising a cylindrical enclosure (11) having a sidewall (10c) and at least one open end (10b), an electrode roll (20) arranged in the cylindrical enclosure (11), a lid (1) closing the open end (10b) of the cylindrical enclosure (11), the lid (1) being welded to the cylindrical enclosure (11) at a first location (23), and a current collector disc (15) arranged between the electrode roll (20) and the lid (1) and in direct electrical contact with the electrode roll (20), the current collector disc (15) being welded to the cylindrical enclosure (11) at a second location (24) separate to the first location (23).
H01M 10/04 - Construction or manufacture in general
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
H01M 50/169 - Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
There is disclosed herein a cylindrical secondary cell (1) and method of manufacture thereof. The cylindrical secondary cell comprises a cylindrical can (2) having a beading groove (3) formed in a wall thereof and arranged around the circumference thereof. The cell (1) further comprises a first conductive sheet (4), with first electrode coating (4a), wound to form a jelly roll (5) which is arranged in the can (2). The first conductive sheet (4) comprises a portion free of first electrode coating (4a) which protrudes and axially extends from a first end side (5a) of the jelly roll (5) arranged below the beading groove (3), to a can connection surface (9) above the beading groove (9). The can connection surface (9) is arranged at the first end side (5a) of the jelly roll (5) and configured to form an electrical connection from the jelly roll (5) to the can (2), by attachment of the can connection surface (9) to the portion of the first conductive sheet (4) free of first electrode coating (4a).
H01M 10/04 - Construction or manufacture in general
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
H01M 50/559 - Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
H01M 50/566 - Terminals characterised by their manufacturing process by welding, soldering or brazing
A cylindrical battery cell (100) is provided. The cylindrical battery cell comprises a cylindrical can (107) for housing an electrode roll (106), the cylindrical can comprising a beading groove (110) formed in a wall of the cylindrical can and arranged around the circumference of the cylindrical and a clamping portion (111) between the beading groove and the edge of the cylindrical can, and a lid (130) configured to close an open end of the cylindrical can. The lid is arranged to form an electrical connection from the electrode roll to the cylindrical can, by electrical contact of the lid with the can at the clamping portion.
H01M 10/04 - Construction or manufacture in general
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
H01M 50/169 - Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
H01M 50/545 - Terminals formed by the casing of the cells
H01M 50/566 - Terminals characterised by their manufacturing process by welding, soldering or brazing
H01M 50/167 - Lids or covers characterised by the methods of assembling casings with lids by crimping
H01M 50/186 - Sealing members characterised by the disposition of the sealing members
H01M 50/528 - Fixed electrical connections, i.e. not intended for disconnection
H01M 50/531 - Electrode connections inside a battery casing
H01M 50/559 - Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
There is disclosed herein a cylindrical secondary cell (1), comprising a cylindrical enclosure (2) comprising a first enclosure end (2a), a second enclosure end (2b) and an enclosure sidewall (2c) extending between the enclosure ends (2a, 2b), wherein at least one enclosure end (2b) is open. The cell further comprises an electrode roll (20), a lid (10), and a current collector disc arranged between the lid and the electrode roll (20) and in direct electrical contact with the electrode roll (2). The cylindrical enclosure (2) comprises a flat flange section (2f) extending from the enclosure sidewall (2c) at the open enclosure end (2b), and the radially outermost portion of the lid (10) is configured to abut and match the flat flange section of the cylindrical enclosure, and is welded to said flat flange section (2f).
H01M 10/04 - Construction or manufacture in general
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
H01M 50/169 - Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
There is disclosed herein a cylindrical secondary cell (1), comprising a cylindrical enclosure (2) comprising a first enclosure end (2a), a second enclosure end (2b) and an enclosure sidewall (2c) extending between the enclosure ends (2a, 2b), wherein at least one enclosure end (2b) is open. The 5 cell further comprises an electrode roll (20), a lid (10), and a current collector disc arranged between the lid and the electrode roll (20) and in direct electrical contact with the electrode roll (2). The cylindrical enclosure (2) comprises a flat flange section (2f) extending from the enclosure sidewall (2c) at the open enclosure end (2b), and the radially outermost portion of the lid 10 (10) is configured to abut and match the flat flange section of the cylindrical enclosure, and is welded to said flat flange section (2f).
H01M 10/04 - Construction or manufacture in general
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/169 - Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
84.
A CYLINDRICAL SECONDARY CELL WITH A TERMINAL SURFACE WITH DIFFERENT ROUGHNESS
The disclosure shows a cylindrical secondary cell (1) comprising a cylindrical can (2) comprising an end side (2a), and a terminal (3), arranged at the can end side (2a). The terminal (3) comprises a terminal surface (4) for connecting external electrical interconnects to the cylindrical secondary cell (1). The terminal surface (4) comprises a first part (4a) formed by a centre region of the terminal surface and being at least partly surrounded by a second part (4b) of the terminal surface, wherein a first surface roughness of the first part (4a) exceeds a second surface roughness of the second part (4b).
H01M 50/559 - Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/179 - Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for cells having curved cross-section, e.g. round or elliptic
A battery assembly includes: a plurality of cylindrical battery cells arranged in rows; a plurality of cooling barriers that are positioned between rows of the cylindrical battery cells and a cooling plate The cooling barriers each include a conduit that extends between a first opening at a first end and a second opening at a second end, within the thickness of the cooling barrier. The cooling plate is on top of the cylindrical battery cells and comprises: a first port; a second port; a first manifold that provides a fluidic connection between the first port and the first openings in each of the cooling barriers; and a second manifold that provides a fluidic connection between the second port and the second openings in each of the cooling barriers. The first and / or the second manifold includes flow channels that extend along the cooling plate between its respective port and the associated openings in each of the cooling barriers.
H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
H01M 10/6557 - Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
H01M 10/658 - Means for temperature control structurally associated with the cells by thermal insulation or shielding
H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
H01M 50/502 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing
A battery assembly configured to receive a plurality of battery cells at respective predetermined locations, wherein the battery assembly comprises a plurality of vent apertures located at said predetermined locations and at least one venting channel extending adjacent to at least a first subset of said predetermined locations and wherein the vent apertures located at the first subset of said predetermined locations are configured to allow material ejected from a battery cell located at a respective one of the predetermined locations to exit therethrough and into the at least one venting channel, wherein the at least one venting channel includes an open cell foam at least adjacent the vent apertures to receive said material that exits through said vent apertures.
H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
H01M 50/30 - Arrangements for facilitating escape of gases
H01M 50/392 - Arrangements for facilitating escape of gases with means for neutralising or absorbing electrolyteArrangements for facilitating escape of gases with means for preventing leakage of electrolyte through vent holes
H01M 50/367 - Internal gas exhaust passages forming part of the battery cover or caseDouble cover vent systems
A method of arranging battery cells for forming a battery assembly, the method comprising: forming a first row of the battery cells by stacking a first plurality of the battery cells and a first plurality of individual, spacers in a mount such that directly adjacent battery cells of the first plurality of the battery cells in the row have one of said first plurality of spacers therebetween and wherein adhesive applied to one or both of said first plurality of spacers and said first plurality of battery cells is configured to adhere the battery cells of the first plurality of battery cells and the spacers of the first plurality of spacers together to form the first row of battery cells; providing the first row of battery cells, once the adhesive has cured, for assembly to form part of the battery assembly
H01M 10/6557 - Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
H01M 50/291 - 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
88.
A METHOD OF MANUFACTURING A SECONDARY CELL ELECTRODE
The present disclosure relates to methods of making electrodes for secondary cells, electrodes made by these methods, as well as methods of making secondary cells and cells made by these methods. The methods involve covering part of a conductive foil with an electrode coating so that the conductive foil comprises a coated part and an exposed part. A metal sheet is then welded to at least part of the exposed part.
H01M 10/04 - Construction or manufacture in general
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
H01M 50/534 - Electrode connections inside a battery casing characterised by the material of the leads or tabs
89.
AQUEOUS CATHODE SLURRY COMPOSITION FOR CELL CATHODE
The present disclosure relates to a binder system for an electrode, a slurry composition comprising said binder composition for use in forming electrodes, and electrodes formed from the same. The binder system contains binder polymer, an alkali metal salt of an acidic polysaccharide, and an acid or salt thereof. The electrodes formed using the binder system show excellent cycle life, good flexibility and good adhesion.
H01M 4/50 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
H01M 4/52 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
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 4/60 - Selection of substances as active materials, active masses, active liquids of organic compounds
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
There is disclosed herein a protection device (100) for a battery pack, and a battery pack (800) comprising such a protection device (100). The protection device (100) comprises a fuse (102) arranged in a space (103) between electrical conductors (104) and configured to weaken when an 5 overcurrent passes therethrough. According to a beneficial aspect of the present disclosure, the protection device (100) comprises an insulator (106) formed as a resilient member having a biased state and a relaxed state. The insulator (106) is held in the biased state by the fuse (102) and is biased towards the space (103) between the electrical conductors (104) in the biased 10 state.
H01H 85/36 - Means for applying mechanical tension to fusible member
H01H 85/38 - Means for extinguishing or suppressing arc
H01M 50/583 - Devices or arrangements for the interruption of current in response to current, e.g. fuses
B60L 58/10 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
H01H 85/02 - Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive Details
Two cylindrical secondary cells (1) and methods for assembling them, comprising a cylindrical can (2), a terminal (3), and a first conductive sheet (4), with first electrode coating, wound to form a jelly roll (5). The first conductive sheet (4) comprises a portion (4a) free of first electrode coating. An electrically conductive electrode lead plate (6) is arranged in direct contact with at least part of the portion (4a) free of first electrode coating. The electrode lead plate (6) comprises a protrusion (6a) extending through an opening (2c) in the can (2), and the protrusion (6a) comprises a rivet head (6b) on an outside of the can (2). The rivet head (6b) forms at least part of the terminal (3). Alternatively, the electrode lead plate (6) comprises a hollow protrusion (6a) which protrudes through an opening (2c) in the can (2), and the part of the protrusion (6a) which is exposed to the outside of the can (2) comprises a vent arrangement (11).
H01M 10/04 - Construction or manufacture in general
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/186 - Sealing members characterised by the disposition of the sealing members
The present invention relates to a method for preparing a secondary electrochemical cell comprising a lithium hybrid anode. In particular, the present invention relates to a method including a pre-intercalation step to form a lithium hybrid anode suitable for a high-performance hybrid lithium metal battery.
The present disclosure relates to a system and a method for determining an alignment of a stack of electrode sheets. The method comprises obtaining at least two images (106a, b) that comprise images of two edges (102a, 104a, 102b, 104b) of electrode layers (102, 104). The method further comprises identifying the locations (110a-h) of edges (102a, 104a, 102b, 104b) of the electrode layers (102, 104) in the images and determining lines (112a, 112b) based on these identified locations (110a-h). The method then comprises determining an alignment of the electrode layers (102, 104) based on these determined lines (112a, 112b).
The present disclosure generally pertains to testing of rechargeable battery cells, commonly called secondary cells. More specifically, the disclosure relates to a charging infrastructure (100) for EVs. The comprising charging infrastructure (100) comprises a plurality of EV chargers (104) configured to record energy signatures representing energy consumed and/or supplied by the EV chargers (104) while charging and/or discharging the battery packs (20) and a control arrangement (10). The control arrangement (10) is configured to obtain, production data associated with cells (21) of the battery packs, to receive the energy signatures (61, 62) from the EV chargers, and to diagnose the cells by evaluating the obtained energy signatures and obtained production data according to predetermined cell health criteria. The disclosure also relates to a corresponding method.
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
B60L 53/60 - Monitoring or controlling charging stations
B60L 53/62 - Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
B60L 53/65 - Monitoring or controlling charging stations involving identification of vehicles or their battery types
B60L 58/10 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
B60L 58/16 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
B60L 58/18 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
The present disclosure relates to a process for treating cathode active material for a secondary battery to remove impurities. The process comprises a tube press filter in combination with a drying step which takes a batchwise input and provides a continuous output.
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 4/02 - Electrodes composed of, or comprising, active material
96.
EDGE COATING IN AN ELECTRODE ROLL, AND A CYLINDRICAL SECONDARY CELL
An electrode assembly (10) for a secondary battery cell, the electrode assembly comprising: a conductive substrate (1); an electrode coating (2, 2') provided on at least one side of the conductive substrate (1); wherein the electrode coating (2, 2') is at least partially coated on the conductive substrate (1), whereby said conductive substrate (1) exhibits uncoated portions (4) and coated portions (2, 2'), and wherein an edge coating layer (3) is arranged to cover at least an a portion of an interface (5) between said uncoated conductive substrate (4) portion and the electrode coating (2, 2'), wherein the edge coating layer comprises at least 55 wt-% polyvinylidene fluoride (PVDF).
H01M 50/474 - Spacing elements inside cells other than separators, membranes or diaphragmsManufacturing processes thereof characterised by their position inside the cells
H01M 50/477 - Spacing elements inside cells other than separators, membranes or diaphragmsManufacturing processes thereof characterised by their shape
H01M 10/04 - Construction or manufacture in general
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
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
H01M 4/134 - Electrodes based on metals, Si or alloys
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
H01M 4/525 - 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 10/0567 - Liquid materials characterised by the additives
H01M 10/0568 - Liquid materials characterised by the solutes
H01M 10/0569 - Liquid materials characterised by the solvents
H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
An electrochemical cell having a stacked configuration. The cell comprises a positive electrode; a negative electrode; a separator arranged between the positive electrode and the negative electrode; a sealant disposed between a peripheral region of the positive electrode and a peripheral region of the negative electrode; a first polymer layer located on an outward facing side of the positive electrode; and a second polymer layer located on an outward facing side of the negative electrode.
H01M 50/103 - Primary casingsJackets or wrappings characterised by their shape or physical structure prismatic or rectangular
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 50/586 - 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 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 50/186 - Sealing members characterised by the disposition of the sealing members
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/291 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
99.
A SILICON-BASED PARTICULATE MATERIAL FOR USE IN AN ANODE ACTIVE MATERIAL FOR A LITHIUM-ION BATTERY CELL
The disclosure relates to a silicon-based particulate material (2511) for use in an anode active material (251) for a lithium-ion battery cell (1), the silicon-based particulate material comprising particles (2511a) comprising silicon, and/or oxides or alloys thereof; and a ceramic coating (2511b) applied on the particles, wherein the ceramic coating comprises a transition metal disulphide and/or a lithium-containing ceramic. The disclosure further relates to an anode active material for a lithium-ion battery cell, an anode assembly for a lithium-ion battery cell and a lithium-ion battery cell.
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 4/505 - 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 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
100.
PROCESS FOR CATHODE ACTIVE MATERIAL PRECURSOR PREPARATION
The present invention relates to a process for producing a cathode active material precursor having a desired active material target ratio for use in a lithium-ion secondary cell or in the production of a lithium-ion secondary cell.
