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HYDROGENATED NITRILE RUBBER

Resumen de: EP4772543A1

The present invention provides a hydrogenated nitrile rubber that has excellent dispersibility and stability in a conductive material dispersion when manufacturing electrodes for electrochemical elements, excellent peel strength in the electrode and excellent crack suppression of the active material in the electrode after cycle testing, and excellent output characteristics of the electrochemical element. The hydrogenated nitrile rubber of the present invention contains a nitrile group-containing monomer unit and a conjugated diene monomer unit and/or an alkylene structural unit, has a weight average molecular weight (Mw) in the range of 1,000 to 1,000,000 and an iodine value of 100 mg/100 mg or less, contains a phenol-based antiaging agent, has a calcium (Ca) content of 1 to 2500 ppm, a ruthenium (Ru) content of 0.5 to 50 ppm, a palladium (Pd) content of 200 ppm or less, a magnesium (Mg) content of 50 ppm or less, and a sodium (Na) content of 300 ppm or less.

BATTERY PACK, BATTERY PACK ASSEMBLY, AND POWER DEVICE

Resumen de: EP4773371A1

0001 The present application discloses a battery pack, a battery pack assembly, and a power unit. The battery pack includes: a battery housing, wherein a battery module is mounted in the battery housing, and a bottom of the battery module is provided with an explosion-proof valve; a bottom protection plate assembly, including a bottom protection plate component and an explosion-proof valve protection member, wherein the bottom protection plate component is connected to a bottom of the battery housing, the explosion-proof valve protection member is supported between the bottom protection plate component and the battery module, the explosion-proof valve protection member is provided with a hollow cavity and an exhaust hole, the exhaust hole is arranged directly opposite to the explosion-proof valve, the exhaust hole is communicated with at least a part of the hollow cavity, and at least a part of the hollow cavity is adapted to communicate with an external space of the battery pack. In the battery pack according to an embodiment of the present application, the explosion-proof valve can be arranged downwards, the bottom protection plate assembly is arranged to protect the battery pack to a certain extent, thus improving a bottom protection performance of the battery pack, and the explosion-proof valve and the exhaust hole are arranged to discharge generated gas, thus reducing a probability of thermal runaway.

ELECTRIC POWER SUPPLY DEVICE

Resumen de: EP4773379A1

A power supply device includes battery blocks each including secondary battery cells, an outer case accommodating the battery blocks therein such that the battery blocks are arranged side by side, and a fixture fixing the battery blocks to the outer case. The battery blocks arranged side by side constitute a battery assembly. The fixture includes a first fixing part and second fixing parts. The first fixing part is disposed at a middle of the battery assembly and over adjacent battery blocks among the battery blocks. Each second fixing part presses a corresponding one of the battery blocks against the outer case to hold the battery blocks. Each second fixing part includes a portion fixed to the first fixing part and another portion fixed to the outer case.

FINE PARTICLE POWDER MANUFACTURING METHOD AND MANUFACTURING DEVICE, FINE PARTICLE SLURRY WASHING AND CONCENTRATING DEVICE, FINE PARTICLE POWDER MANUFACTURING DEVICE AND MANUFACTURING METHOD, AND FINE PARTICLE SLURRY CONCENTRATING DEVICE

Resumen de: EP4772819A1

A fine particle powder manufacturing apparatus (1) includes a fine particle slurry manufacturing device (2) that manufactures a slurry containing fine particles having a particle diameter equal to or less than 7 µm by reacting a plurality of raw materials in a mother liquor in which a swirling flow is generated in a crystallization device (10), a slurry tank (30) that washes the slurry by adding a washing liquid while stirring the slurry, a stirring type cross-flow filtration device (6) that removes a part of the mother liquor and the washing liquid from the slurry and concentrates the slurry, a switching device (70) that switches an initial concentration process, a dilution washing process, and a final concentration process, and a drying device (8) that transfers the final concentrated slurry while mixing the slurry with a heated stirring blade and dries the slurry by conductive heat transfer.

BATTERY PACK BRACKET, BRACKET ASSEMBLY AND VEHICLE

Resumen de: EP4772373A1

A battery pack bracket (100), a bracket assembly (10) and a vehicle (1) are provided herein. The vehicle includes a bracket assembly (10); the bracket assembly (10) includes a battery pack bracket (100). The battery pack bracket (10) includes: a supporting platform (100a) and at least two cantilever beams (110). The supporting platform (100a) is configured to install the battery pack; at least two cantilever beams (110) are disposed at intervals on both sides of the supporting platform (100a) along a first direction; a width of at least part of the cantilever beam (110) gradually decreases in a direction away from the connecting structure; the cantilever beam (110) includes a bottom plate (110a) and two side plates (110b), and a plurality of connecting bodies (110c) are connected between the two side plates (110b).

NONAQUEOUS ELECTROLYTE AND NONAQUEOUS ELECTROLYTE BATTERY

Resumen de: EP4773297A1

A nonaqueous electrolyte solution capable of exhibiting an excellent normal-temperature cycle characteristic and a low-temperature input characteristic after a cycle test when used in a nonaqueous electrolyte solution battery and a nonaqueous electrolyte solution battery are provided. A nonaqueous electrolyte solution containing (1) at least one compound selected from the group consisting of a monofluorophosphate salt, a difluorophosphate salt, a monofluorosulfonate salt, a salt represented by the general formula (1) described in the specification, and a salt represented by the general formula (2) described in the specification, (II) a solute, (III) a nonaqueous organic solvent, and (IV) a compound represented by the general formula (3) described in the specification, and a nonaqueous electrolyte solution battery including the nonaqueous electrolyte solution.

BATTERY PACK COMPRISING A PACK OF CELLS AND A BATTERY MANAGEMENT SYSTEM

Resumen de: WO2025046463A1

The invention relates to a battery pack comprising a pack of cells (4), each cell comprising two opposing polarities, each polarity being electrically coupled to a first connector (57) situated in line with a first cooperating portion (47), the system comprising an electronic management casing (5) configured to be mounted removably on the pack of cells (4) and comprising second connectors (67) electrically coupled to a battery management system (6) and situated in line with second cooperating portions (77), the battery pack being configured such that the mounting of the casing (5) on the pack of cells (4) brings about mechanical cooperation between each first cooperating portion (47) and one of the second cooperating portions (77) that achieves seal-tightness while at the same time electrically coupling each first connector (57) with a second connector (67).

LITHIUM SECONDARY BATTERY

Resumen de: EP4773398A1

A lithium secondary battery (10) disclosed includes a positive electrode (11), a negative electrode (12), a separator (13) and a spacer (53) that are disposed between the positive electrode (11) and the negative electrode (12), and a nonaqueous electrolyte. The negative electrode (12) is an electrode on which lithium metal is deposited during charging, and from which the lithium metal dissolves during discharging. The negative electrode (12) includes a negative electrode base foil (12a) having a negative electrode current collector foil. At least one portion selected from the group consisting of a portion of the separator (13) that is in contact with a spacer (53) and a portion of the spacer (53) is embedded in the negative electrode base foil (12a).

BATTERY MODULE

Resumen de: EP4773380A1

0001 A battery module (100) includes a battery cell (110), a housing (200) that accommodates the battery cell (110), an adhesive (300) that is at least partially positioned between the battery module (100) and the housing (200), and a first extending portion (264) and an elastic material (400) that dam at least a part of the adhesive (300).

CYLINDRICAL BATTERY

Resumen de: EP4773407A1

0001 A battery (10) is provided with a first negative electrode lead (21a) and a second negative electrode lead (21b) joined to a negative electrode (12). A laminated part (50) in which the first negative electrode lead (21a) and the second negative electrode lead (21b) are laminated in the axial direction in a state in which the first negative electrode lead (21a) is positioned on an electrode body (14) side is formed between the electrode body (14) and a bottom portion part (31) of an outer can (16). The laminated part (50) is welded to the bottom portion part (31) of the outer can (16). A first thickness (t1) of the first negative electrode lead (21a) in the laminated part (50) is larger than a second thickness (t2) of the second negative electrode lead (21b) in the laminated part (50).

HEAT EXCHANGER

Resumen de: WO2025045924A1

The invention relates to a heat exchanger, in particular in the form of a battery cooling device for an electric battery module of an electric drive on an electric vehicle, wherein the heat exchanger has a cooling circuit for circulating a temperature-control fluid, wherein the cooling circuit is formed between two plates connected to each other in regions by roll bonding, wherein the plates are integrally connected in joined regions and are widened in non-connected hollow regions in order to form the cooling circuit, wherein flow elements which are surrounded by flow on all sides and which influence the flow of the temperature-control fluid through the cooling circuit are formed by the joined regions.

FLAME RETARDANT THERMOPLASTIC COMPOSITION

Resumen de: WO2025045866A1

The present invention relates to a thermoplastic composition comprising, based on the weight of the thermoplastic composition, (A) from 40 to 60 wt.% of polyester comprising or consisting of polybutylene terephthalate, (B) from 10 to 45 wt.% of glass fibers, (C) from 10 to 20 wt.% of a flame retardant composition comprising - antimony compound - organo-bromo flame retardant agent - melamine compound and - optionally anti-drip agent (D) from 0 to 20 wt.% of polycarbonate and (E) from 0 to 5.0 wt.% of further components wherein the total amounts of (A) to (E) is 100 wt.% with respect to the composition.

BINDER FOR POSITIVE ELECTRODE

Resumen de: EP4773248A1

The present invention provides a binder for positive electrodes that has excellent viscosity characteristics (dispersibility) and stability of the conductive material dispersion when manufacturing electrodes for electrochemical elements, and can improve the peel strength of the electrodes manufactured, and the output characteristics, the cycle characteristics, and the effect of suppressing cracking of the electrode active material after cycle testing of the electrochemical element. The binder for positive electrodes according to the present invention is made by dissolving or dispersing in N-methylpyrrolidone (NMP) hydrogenated nitrile rubber, which contains a nitrile group-containing monomer unit, a conjugated diene monomer unit and/or an alkylene structural unit, has a weight average molecular weight (Mw) of 1,000 to 1,000,000 and an iodine value of 0.1 to 100 mg/100 mg, contains a phenol-based antiaging agent, and has a palladium (Pd) content of 50 ppm or less and a calcium (Ca) content of 1 to 2000 ppm.

TWO-COMPONENT THERMALLY CONDUCTIVE COMPOSITION

Resumen de: EP4516830A1

0001 The invention relates to a two-component thermally conductive composition comprising: - a component A comprising: ∘ at least one polyol P having a functionality of at least 4, and ∘ at least one thermally conductive filler; and - a component B comprising: ∘ at least one polyisocyanate, and ∘ at least one thermally conductive filler; wherein the at least one thermally conductive filler in each of components A and B is selected from metal silicates, metal oxides, metal hydroxides, metal and metalloid nitrides, metal and metalloid carbides, metallic fillers, graphites, and mixtures thereof. 0002 The invention also relates to the use of the composition according to the invention. 0003 Furthermore, the invention relates to a method for bonding substrates implementing the composition according to the invention. 0004 Finally, the invention relates to an article comprising the composition according to the invention.

HIGHLY CONDUCTIVE MESOPOROUS CARBON BLACKS

Resumen de: WO2025045757A1

The present invention relates to Conductive Carbon Black (CCB) materials with an optimized prosity distribution, in particular an optimized micro- and mesoporosity distribution. This in improved performance as conductive agent or additive for example in Li-ion battery applications. Further, the application relates to improved Li-ion batteries characterized by a low direct contact resistance (DCR).

DISPERSIONS OF CARBON NANOTUBES AND CARBON BLACKS

Resumen de: EP4517851A1

0001 The present invention relates to conductive dispersions possessing advantageous properties comprising carbon black and carbon nanotube particles with carefully selected properties, such as surface area, oil absorption number (OAN), ration of cOAN/OAN, number of primary particles per aggregate, D<50> length, or outside diameter. Optimized dispersions according to the invention are characterized by improved stability and suitable rheological properties and enable the formation of improved Li-lon batteries

BATTERY ASSEMBLY

Resumen de: EP4773350A1

0001 The battery assembly of the present disclosure comprises a case, a plurality of battery cells accommodated in an inner space of the case, a barrier member disposed between the plurality of battery cells, and a sealing member surrounding an upper end, a left end, and a right end of the barrier member, thereby improving thermal stability and delaying heat propagation to adjacent battery cells.

SEPARATOR, LITHIUM SECONDARY BATTERY COMPRISING SAME, AND METHOD FOR MANUFACTURING SAME

Resumen de: EP4773393A1

0001 Proposed are: a polyolefin porous support; and a separator, a lithium secondary battery comprising same, and a method for manufacturing same, wherein the polyolefin porous support comprises a plurality of fibrils and pores formed by the plurality of fibrils entangling with each other, polyolefin chains constituting the fibrils are directly cross-linked with each other, and the polyolefin porous support comprises polyethylene glycol containing a hydrophilic photoinitiator-derived functional group.

METHOD FOR MANUFACTURING ELECTRIC POWER STORAGE DEVICE, AND ELECTRIC POWER STORAGE DEVICE

Resumen de: EP4773413A1

A power storage device manufacturing method includes: a first preparation step of preparing a wound electrode group 50 including a first electrode 51 and a second electrode, the first electrode 51 including a metal foil portion 52 exposed at one end of the electrode group 50 in the axial direction; a second preparation step of preparing a current collector plate 80 including a central portion 81 and an arm portion 82; a third preparation step of preparing a bottomed cylindrical case; a first welding step of welding the metal foil portion 52 and the arm portion 82 together at a line weld part LW using a line laser beam formed using a diffractive optical element; and a second welding step of housing the electrode group 50 and the current collector plate 80 in the case, and welding the central portion 81 and the inner bottom surface of the case together at a central weld part CW. In the first welding step, a spot-shaped melt mark is formed at a part of the central portion 81 that is located on the outer circumferential side relative to the central weld part CW by zero-order light emitted from the diffractive optical element. Thus, the manufacturing costs can be reduced.

LI METAL BATTERY CYCLE LIFE IMPROVEMENT BY INTERFACE METAL/DIELECTRIC STACK

Resumen de: WO2025049152A1

Alkali metal containing devices and methods for manufacturing alkali metal containing devices are provided. In one aspect, an anode electrode structure is provided. The anode electrode structure includes a current collector including copper and/or stainless steel, a lithium metal film formed over the current collector, and a protective film stack formed on the lithium metal film. The protective film stack includes a metallic film formed over the lithium metal film and a lithium salt film formed on the metallic film. The metallic film is selected from a bismuth film, a tin film, a silver film, or a combination thereof. The lithium salt film is formed on the metallic film, the lithium salt film selected from lithium sulfides, lithium oxides, lithium halides, lithium chalcogenides, lithium borohydride, or a combination thereof.

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: EP4773320A1

0001 According to the present invention, a positive electrode active material contains a lithium-containing composite oxide, a negative electrode active material contains a silicon-containing material, and the discharge capacity per 1.0 g of a negative electrode mixture layer (52) is at least 0.5 Ah. A negative electrode lead (21) is connected to a winding start-side end part of a negative electrode (12). The negative electrode (12) has, on a winding start side of an electrode body (14), a non-facing part (61) that does not face a positive electrode (11), and the negative electrode mixture layer (52) is provided on at least a part of at least one surface of the non-facing part (61). When the distance between a negative electrode current collector (51) of a first starting end facing part (12a) in the negative electrode (12), which faces a winding start end (11a) of the positive electrode (11) on an outer winding side, and a negative electrode current collector (51) of a second starting end facing part (12b) in the negative electrode (12), which faces the winding start end (11a) on an inner winding side, is x, and the thickness of the negative electrode mixture layer (52) in the first starting end facing part (12a) is y, x/y>4.5 is satisfied.

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: EP4773355A1

This nonaqueous electrolyte secondary battery (10) includes: an electrode body (60); and a laminate sheet outer casing (12) which is obtained by folding a laminate sheet including an adhesive resin layer in two along a bottom part (17). The laminate sheet outer casing has: a top part (16) from which a positive electrode tab and a negative electrode tab are derived from an overlapping part of the outer peripheral part of the laminate sheet; and two side parts (18, 20) which connect the top part and the bottom part to each other. The laminate sheet outer casing has a housing part (13) that houses the electrode body inside the overlapping part. Sealing parts (30, 40) are formed on the top part and the two side parts. Each side part has non-sealed parts (31, 41) that are connected to the housing part and the bottom part. Each non-sealed part is separated from the top part.

SYSTEM AND METHOD FOR REUSING AN ELECTRIC VEHICLE BATTERY

Resumen de: EP4773340A2

0001 A device for enabling the reuse of a complete battery pack for electric vehicles (EV) is disclosed. The device allows reuse of a battery pack at a significantly lower cost than alternative methods that require the battery pack to be opened, batteries to be taken out and installed in a new pack with a new battery monitoring system (BMS), and undergoing certification as a new system. The disclosed device includes a controller having a software program operating therein and which is electrically coupled to a battery pack and provides electrical input and output signals to the BMS of the EV battery, which relate to optimal operating parameters of the battery pack including depth of discharge (DoD), depth of charge (DoC), charge rate, and temperature. The controller enables reuse of the complete battery pack without reopening and mimics electrical signaling compared to a car or other electric vehicles.

METHOD FOR EFFICIENTLY SEPARATING LITHIUM FROM MULTI-ELEMENT LITHIUM BATTERY ELECTRODE WASTE IN ONE STEP

Resumen de: EP4772659A1

The present disclosure discloses a method for one-step efficient separation of lithium from an electrode scrap of a multi-element lithium battery. The electrode scrap of the multi-element lithium battery is at least one of a cathode scrap and an anode scrap. The multi-element lithium battery includes at least one of nickel, cobalt, and manganese. The method includes the following steps: S1. one-step lithium separation: adding an inorganic acid, a leaching aid, and a reducing agent to a powder of the electrode scrap of the multi-element lithium battery, and stirring at a specific temperature and allowing a leaching reaction for a specific period of time to produce a leached slurry; and S2. filtration and washing: filtering and washing the leached slurry to produce a lithium-rich solution with a lithium ion concentration of 10 g/L to 30 g/L and a residue. The present disclosure enables the one-step efficient separation of lithium from elements such as nickel, cobalt, and manganese, breaks down the production barrier between spent lithium battery recycling and nickel-cobalt-manganese smelting, and achieves the high recovery rate of lithium while reducing the comprehensive unit cost of nickel, cobalt, and manganese recovery. Therefore, the present disclosure has significance for global promotion.

BATTERY CELL ADHESIVE APPLICATION SYSTEM AND METHOD

Nº publicación: EP4773272A1 08/07/2026

Solicitante:

CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
Contemporary Amperex Technology Co., Limited

Resumen de: EP4773272A1

This application discloses a cell adhesive attachment system and method, related to the field of batteries. The cell adhesive attachment system includes: a welding device (11, 81), configured to weld a tab (10b) of a cell (10a) to an adapting piece (10c) to obtain a target cell (100); a battery inspection apparatus (12, 82), configured to inspect the target cell (100), where the battery inspection apparatus (12, 82) includes: an image acquisition device (22), configured to acquire an image of a tab area (10d) of the target cell (100); and a light source (21), including multiple sub-light sources arranged circumferentially along an image acquisition channel of the image acquisition device (22), and configured to project light onto the tab area (10d), where under different operating modes of the light source (21), an on/off state of at least one of the sub-light sources varies; an adhesive attachment device (13, 83), configured to perform adhesive attachment processing on the obtained target cell (100); and a transfer device (14, 84), configured to transfer the welded target cell (100) to the battery inspection apparatus (12, 82) and to transfer the target cell (100) with a normal inspection result to the adhesive attachment device (13, 83).