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POSITIVE ELECTRODE ACTIVE MATERIAL, MANUFACTURING METHOD THEREFOR, AND POSITIVE ELECTRODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4571879A1

The present invention relates to a positive electrode active material and a preparation method thereof, wherein the positive electrode active material includes a lithium composite transition metal oxide in the form of a secondary particle in which a plurality of grains are aggregated, and including an oriented structure in which a long axis of the grain is arranged in a direction from the center of the secondary particle toward the surface thereof in at least one portion of the secondary particle, and a coating layer formed on the surface of the secondary particle and including a Co element, wherein the lithium composite transition metal oxide contains nickel and cobalt, and when the ratio of the molar number of cobalt to the molar number of nickel in the grain is C1, the ratio of the molar number of cobalt to the molar number of nickel at a grain boundary, which is an interface between the grains, is C2, and the ratio of the molar number of cobalt to the molar number of nickel in the coating layer is C3, C1 < C2 < C3 is satisfied.

APPARATUS FOR INSPECTING ELECTRODE ASSEMBLY AND BATTERY CELL COMPRISING ELECTRODE ASSEMBLY PRODUCED USING SAME, AND BATTERY PACK AND VEHICLE COMPRISING BATTERY CELLS

Resumen de: EP4571243A1

Disclosed are an electrode assembly inspection device, a battery cell including an electrode assembly produced using the same, and a battery pack and a vehicle including the battery cell. An electrode assembly inspection device according to an embodiment of the present disclosure, which is a device for inspecting an electrode assembly of a battery cell, includes a winding roll where a negative electrode, a first separator, a positive electrode, and a second separator are wound; a first inspection unit spaced apart from the negative electrode and disposed to face at least one of a first end of the negative electrode and a second end of the negative electrode; a second inspection unit spaced apart from the positive electrode and disposed to face at least one of a first end of the positive electrode and a second end of the positive electrode; and a control unit determining whether the electrode assembly is defective based on the inspection result from at least one of the first inspection unit and the second inspection unit.

BATTERY SHELL, BATTERY, BATTERY PACK, AND POWER CONSUMING SYSTEM

Resumen de: EP4571965A1

The present disclosure relates to a battery shell, a battery, a battery pack, and a power consuming system. The battery and a battery pack shell form the battery pack to supply power to the power consuming system, and the battery shell of the battery includes a housing and a cover plate. The housing includes an inner cavity, the inner cavity has an opening, the cover plate is fixed to the housing, and the cover plate covers the opening of the inner cavity. A first groove is provided on at least one of a surface of the cover plate facing the housing and a surface of the housing facing the cover plate, a brazing seam is provided between the cover plate and the housing, and the brazing seam is configured to connect the housing to the cover plate fixedly to seal the inner cavity. The first groove is adapted to accommodate solder for forming the brazing seam. The battery shell of the present disclosure is formed through brazing, thereby reducing soldering difficulty, reducing manufacturing costs, and reducing residual stress and a failure risk after soldering.

LITHIUM ION BATTERY

Resumen de: EP4571918A1

In order to solve the problems of capacity attenuation and inadequate dynamic performance of the existing high-voltage LCO battery, the application provides a lithium-ion battery, including a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive electrode includes a positive electrode current collector and a positive electrode material layer arranged on the positive electrode current collector, and the positive electrode material layer includes a positive electrode active material containing a lithium cobalt oxide, and the positive electrode has a resistivity less than or equal to 1000 Ω·cm; the non-aqueous electrolyte includes a non-aqueous organic solvent, a lithium salt and an additive, the additive includes a compound represented by structural formula 1:the lithium-ion battery meets the following requirements: 0.05≤m*d/f≤5, and 10≤d≤40, 3≤f≤30, 0.01≤m≤3. The lithium-ion battery provided by the present application effectively ensures the ionic conductivity and electronic conductivity of the positive electrode, as well as good dynamic and cycle performances without compromising energy density.

NEGATIVE ELECTRODE FOR ZINC BATTERY, AND ZINC BATTERY

Resumen de: EP4571877A1

This negative electrode for a zinc battery comprises a nonporous current collector and a negative electrode mixture layer which is held by the current collector and contains at least one of zinc, a zinc alloy, and a zinc-containing compound. The negative electrode has a current collector-exposed section in which the negative electrode mixture layer is not disposed, in a portion located at the outermost circumferential surface when wound.

ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, AND ELECTRODE MATERIAL PRECURSOR AND PREPARATION METHOD THEREFOR

Resumen de: EP4571885A1

Embodiments of this application provide an electrode material. The electrode material includes a secondary particle formed by aggregating a plurality of primary particles, the secondary particle includes an inner layer and an outer layer that wraps an outer side of the inner layer, and an average particle size of primary particles at the inner layer is greater than an average particle size of primary particles at the outer layer. The electrode material can homogenize stress distribution of the secondary particle in a charging and discharging process, to suppress a grain boundary cracking phenomenon to some extent, improve cycle stability of the material, and improve battery performance. Embodiments of this application further provide an electrode material preparation method, an electrode material precursor, and an electrode material precursor preparation method.

BATTERY CODING METHOD AND APPARATUS, ELECTRONIC DEVICE, AND BATTERY

Resumen de: EP4571332A1

This application provides a battery encoding method and apparatus, an electronic device, and a battery. The method includes: obtaining location information of a battery cell in a battery; obtaining chip identification information of a functional chip of the battery cell; and storing information on a correspondence between the location information of the battery cell and the chip identification information into a battery management unit of the battery. The chip identification information is used for implementing a communication function between the battery management unit and the functional chip.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4571961A1

The embodiments of the present disclosure provide a battery cell, battery, and electrical device, relating to the technology field of batteries, which comprise a shell, an electrode assembly, and an end cap. The shell is provided with an opening; the electrode assembly is accommodated within the shell; the end cap is arranged at one end of the shell along a first direction and closing the opening, wherein the end cap comprises a cover body and a connecting part; the connecting part is arranged around an outer side of the cover body; and the connecting part is sealingly connected to the shell. Along the first direction, the cover body is provided with a first outer surface away from the electrode assembly; the first outer surface is a surface of the end cap farthest from the electrode assembly; and the connecting part is closer to the electrode assembly than the first outer surface. Thus, after the connecting part is connected to the shell, it is less likely to affect the first outer surface, making it easier to ensure the smoothness of the first outer surface. This improves the stability of the battery cell when the first outer surface serves as a supporting surface.

APPARATUS AND METHOD FOR MAKING A COIL, PREFERABLY FOR AN ELECTROCHEMICAL CELL INTENDED FOR BATTERY PRODUCTION

Resumen de: CN119678278A

An apparatus (100) for manufacturing a coil (B) comprises: a feeding unit (2) configured to feed at least one strip-shaped article (N); and a winding unit (1). The winding unit comprises a plurality of winding heads (10) and movement means (3) of the winding heads (10), the movement means being configured to displace the winding heads (10) along a working path (P); each winding head (10) is configured to wind the strip-shaped article (N) to form the coil (B) and is movable along the working path (P). The feeding unit (2) comprises a movable portion (20) configured to be displaced along a substantially horizontal displacement direction (d).

BATTERY HOUSING FOR AT LEAST TWO BATTERY MODULES

Resumen de: WO2024033334A1

The invention relates to a battery housing (1) for at least two battery modules (6.1, 6.2, 7.1, 7.2) or at least two rows (6, 7) of battery modules (6.1, 6.2, 7.1, 7.2), wherein each of the battery modules (6.1, 6.2, 7.1, 7.2) or each row (6, 7) of battery modules (6.1, 6.2, 7.1, 7.2) extends along a longitudinal direction (L), having a lower housing part (2) and an upper housing part (3). The invention is characterised by a partition wall assembly (9), which extends between the housing parts (2, 3) in the longitudinal direction (L) and in a vertical direction (H) orthogonal thereto, wherein the partition wall assembly (9) has a partition wall (13) made of plastic, in the material of which at least one data line and/or control line (15) is embedded.

BATTERY CELL WITH SPACING ELEMENT

Resumen de: SE2250960A1

There is disclosed herein a battery cell (100), comprising an electrode assembly (106), a vent (105) in a casing (102) of the battery cell (100), and a spacing element (300) extending along a first side of the electrode assembly (300). The spacing element (300) is arranged in a fluid path between the electrode assembly (106) and the vent (105), and configured to guide gas flow along the fluid path from the electrode assembly (106) to the vent (105).

BATTERY MANAGEMENT DEVICE AND OPERATION METHOD THEREFOR

Resumen de: EP4571333A1

A battery management system includes a voltage measurement unit that measures a voltage of each of a plurality of batteries; and a controller. The controller controls the voltage measurement unit to measure the voltage of each of the plurality of batteries; calculates a first deviation, which is a deviation between long-term and short-term moving average values of the voltage of each of the plurality of batteries; calculates a second deviation, which is a deviation between long-term and short-term moving average values of an average voltage of the plurality of batteries; calculates a first diagnosis deviation, which is a difference between the first and second deviations; calculates a second diagnosis deviation based on a reference value obtained by multiplying the second deviation by a threshold constant; and based on the second diagnosis deviation, diagnoses an abnormality of at least one battery among the plurality of batteries.

BATTERY MANAGEMENT SYSTEM, BATTERY PACK, ELECTRIC VEHICLE, AND BATTERY MANAGEMENT METHOD

Resumen de: EP4571339A1

A battery management system, a battery pack, an electric vehicle and a battery management method are provided. The battery management system according to the present disclosure includes a sensing unit for detecting voltage, current, and pressure of the battery cell, a memory for storing first relationship data representing the relationship between OCV and SOC and second relationship data representing the relationship between pressure and SOC, and a control unit for determining a voltage value representing the detected voltage, a current value representing the detected current, and a pressure value representing the detected pressure, and determining a SOC estimation value of the battery cell at each set time. The control unit compares a previous SOC estimation value having the plateau section, and determines a current SOC estimation value by executing at least one of (i) a first SOC estimation value based on the voltage value, the current value and the first relationship data, and (ii) a second SOC estimation value based on the pressure value and the second relationship data.

CELL ASSEMBLY, AND BATTERY MODULE AND BATTERY PACK COMPRISING SAME

Resumen de: EP4571958A1

The present invention relates to automatically aligned battery cells, which are improved in structure to print magnets on surface of the cells so as to automatically align the cells, prevent the cells from being non-uniformly attached during the alignment, and fine physical positions of the cells, thereby improving stacking workability.The automatically aligned battery cells according to the present invention includes a first cell that is one of the plurality of cells, and a second cell that faces the first cell, wherein the first cell comprises a first surface that faces the second cell, and the second cell comprises a second surface that faces the first surface, wherein a first magnet having a first polarity is disposed on the first surface, a second magnet having a second polarity that is opposite to the first polarity is disposed on the second surface, and the first magnet and the second magnet are disposed at positions corresponding to each other.

BATTERY MODULE CONTAINER WITH A PROTECTIVE STEP, ELECTRICAL POWER STORAGE SYSTEM AND ASSOCIATED METHOD

Resumen de: CN119698510A

The invention relates to a battery module container (16) having a structure (30) comprising:-a bottom plate support (34) having two longitudinal members (60), each having an upper surface (62), and a cross member (64) connecting them,-a bottom plate (32), each having a lower surface (62), the invention relates to a module (10) comprising:-a base plate (20) having an upper surface (43) for supporting said module and extending upwardly to a transverse edge (45) facing said longitudinal member,-peripheral walls, at least one of which defines a door (92A) movable between a closed position in which a lower edge (104) faces said upper surface and an open position, and-a top located above the peripheral walls. Along the lower edge of the door in the closed position, the side edges of the upper surface extend to a height higher than the height of the upper surface, and the floor support defines a step (84) between the face and the upper surface, thereby defining a water receiving volume (108).

BATTERY PENETRATION DEVICE FOR FIGHTING FIRES IN ELECTRIC VEHICLE

Resumen de: DK202270402A1

The object of the invention is to provide a device to reduce the temperature in a battery pack installed in an electrical vehicle, such that a fire harzard can be reduced by cooling the battery pack. The present invention addresses this by providing a battery penetration device for reducing the temperature in at least one battery in a battery pack. The battery penetration device comprises a tube having an inlet for fluid, and a nail is arranged in a first end of said tube. The nail is configured to enter said battery pack. The nail has at least one fluid outlet. The fluid inlet is in fluid communication with said fluid outlet, such that fluid is capable of entering said battery pack and thereby reducing the temperature inside the battery pack when cooling the battery pack with said fluid.

OXIDATIVE AND REDUCTIVE LEACHING METHODS

Resumen de: CN119654429A

Disclosed herein are methods for obtaining a composition comprising copper sulphide from a material, wherein the methods comprise: contacting the material with an acidic aqueous solution having a pH of less than 6 in the presence of sulfur dioxide to form copper sulphide; wherein the material comprises one or more copper compounds selected from the group consisting of copper in zero oxidation state, copper oxide and copper hydroxide, and wherein the material comprises an amount of zero oxidation state metals having a standard oxidation reduction potential of less than 0 volts relative to a standard hydrogen electrode. Also disclosed are methods for recycling at least one battery material, and compositions comprising copper sulphide.

DEVICE FOR PROVIDING BATTERY STATE INFORMATION, AND OPERATING METHOD THEREFOR

Resumen de: EP4570582A1

A battery state information providing apparatus according to an embodiment includes a generator configured to generate experimental profiles and a driving profile based on experimental life indexes and a driving life indexes, a comparator configured to compare the experimental profiles and the driving profile to determine an evaluation profile among the experimental profiles, and an evaluator configured to determine state information on a target battery pack based on the evaluation profile and a target life index, wherein the target life index may be a driving life index of a vehicle including the target battery pack.

COPPER-CARBON COMPOSITE MATERIAL, PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: EP4570373A1

The present application relates to a copper-carbon composite material, its preparation and application thereof. The copper-carbon composite material has the advantages of high catalytic activity and high stability. The copper-carbon composite material comprises an active component and a carrier, wherein the active component comprises a combination of Cu and Cu₂O, the carrier is a porous carbonaceous material, the content of the combination is 1 wt% to 50wt%, calculated based on the mass of Cu element, relative to the composite material as 100 wt%, and the R1 value of the composite material is 0.4-2 : 1.

COMPOSITE LITHIUM IRON PHOSPHATE MATERIAL, AND POSITIVE ELECTRODE AND LITHIUM ION BATTERY USING SAME

Resumen de: EP4570749A1

Disclosed is a composite lithium iron phosphate material, and a positive electrode and a lithium ion battery using the same. The composite lithium iron phosphate material is made of a composition comprising an iron phosphate precursor, a lithium source, and a carbon source, the carbon source covers the iron phosphate and the lithium source, the carbon source includes a synthetic polymer carbon source and a biomass carbon source, and the biomass carbon source includes carbon fibers.

PROCESS FOR MAKING AN(OXY)HYDROXIDE, AND (OXY)HYDROXIDES

Resumen de: CN119677692A

The invention relates to a method for producing a particulate (oxy) hydroxide of TM, in which nickel and at least one metal selected from Co and Mn are combined, the method comprises the following steps: (a) providing an aqueous solution (alpha) containing one or more water-soluble salts of Ni and at least one transition metal selected from Co and Mn and optionally at least one additional metal selected from Ti, Zr, Mo, W, Al, Mg, Nb and Ta and an aqueous solution (beta) containing an alkali metal hydroxide and optionally an aqueous solution (gamma) containing a complexing agent, (b) combining solutions (alpha) and (beta) and, if applicable, solution (gamma) in a stirred tank reactor at a pH value in the range of 10.5 to 12.5, determined at 23 DEG C, in one or more sub-steps, thereby producing solid particles of hydroxide, said solid particles being pulpified, wherein the stirred tank reactor used in step (b) or at least one of the sub-steps (b) is equipped with a solid-liquid separation device through which a mother liquor containing pulpified hydroxide particles in the range of 2 mg/l to 20 g/l is removed.

SOLID COMPOSITE ELECTROLYTE

Resumen de: WO2024033092A1

The present invention relates to a solid composite electrolyte comprising a) at least one fluoroelastomer and b) at least one sulfide-based solid ionic conducting inorganic particles that differs from a lithium salt, wherein a) the fluoroelastomer comprises recurring units derived from i) vinylidene difluorides and ii) from 15.0 to 80.0 mol% of at least one C2-C8 chloro and/or bromo and/or iodo fluoroolefin, the mol% being relative to the total moles of recurring units, wherein the solid composite electrolyte does not contain a lithium salt; to a slurry for manufacturing a solid composite electrolyte comprising a) a fluoroelastomer and b) a sulfide-based solid ionic conducting inorganic particle that differs from a lithium salt, and c) at least one non-aqueous solvent, wherein the slurry does not contain a lithium salt; and to a solid-state battery comprising a positive electrode, a negative electrode and a membrane, at least one among which comprises a solid composite electrolyte according to the present invention. The present invention also relates to a binder solution for a solid-state battery comprising a) at least one fluoroelastomer and c) at least one non-aqueous solvent.

POST TERMINAL, TOP COVER STRUCTURE, BATTERY, BATTERY MODULE AND BATTERY PACK

Resumen de: EP4571996A1

The present disclosure relates to the technology field of batteries, and discloses a pole, a top cover structure, a battery, a battery module and a battery pack. The pole includes a first metal pillar and a second metal pillar connected to each other. One end of the first metal pillar is provided with a cold heading forming groove, and the other end is provided with a protruding portion. The second metal pillar is provided with a recessed portion. The protruding portion is embedded in the recessed portion to form a cold heading joint surface. The recessed portion (421) is recessed in a direction away from the cold heading forming groove (411).

ION CONDUCTIVE SUBSTANCE, ELECTROLYTE, AND BATTERY

Resumen de: EP4571786A1

An ion conductive substance includes: an alkali metal element; a tetravalent metal element M; a halogen element; a dopant element X; and an oxygen element, in which a content of the dopant element X is 50% by mol or less with respect to a content of the metal element M, and in an X-ray diffraction chart obtained from measurement using a CuKα radiation at 25°C, the ion conductive substance has a diffraction peak having a half-value width of 2.0° to 10° within a range of 2θ angle of 10° to 20°.

IRON MANGANESE PHOSPHATE PRECURSOR, PREPARATION METHOD THEREOF, AND APPLICATION THEREOF

Nº publicación: EP4570748A1 18/06/2025

Solicitante:

EVE POWER CO LTD [CN]
Eve Power Co., Ltd

Resumen de: EP4570748A1

Disclosed in the present disclosure is an iron manganese phosphate precursor and preparation method thereof and application thereof. The preparation method includes: adding phosphorus source, organic manganese source and organic iron source to organic solvent to obtain a mixed solution; dissolving doping element compounds into water, adding starch therein, and heating until being gelatinized to form a sol; mixing the mixed solution and the sol under heating conditions to obtain a mixed system, adjusting alkalinity of the mixed system, and carrying out a reaction; and drying and calcining after the reaction to obtain an iron manganese phosphate precursor.