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BATTERY MODULE HAVING FIREWALL

Resumen de: EP4601100A1

The present disclosure relates to a battery module. The battery module according to an embodiment of the present disclosure may include a plurality of cell assemblies, each including a plurality of battery cells connected in parallel with each other, and a firewall disposed between two adjacent cell assemblies among the plurality of cell assemblies.

WOUND BATTERY CELL, BATTERY, BATTERY ASSEMBLY, AND ELECTRICAL APPARATUS

Resumen de: EP4601062A1

A jelly roll battery cell, a battery, a battery assembly and an electric device. The jelly roll battery cell (100) includes a main body portion (10) and a tab portion (20); one side of each positive winding portion (101a) in one part of positive winding portions (101a) is connected to one positive tab (21), and one side of each positive winding portion (101a) in the other part of the positive winding portions (101a) is connected to two positive tabs (21); and/or, one side of each negative winding portion (101b) in one part of negative winding portions (101b) is connected to one negative tab (22), and one side of each negative winding portion (101b) in the other part of the negative winding portions (101b) is connected to two negative tabs (22). This structure not only increases a number of the positive/negative tabs and a flow area of the jelly roll battery cell, but also avoids interlayer pseudo soldering between excessive positive/negative tabs and electrically conductive connecting welds by means of a restriction on the number of positive/negative tabs.

CYLINDRICAL BATTERY FIXING DEVICE HAVING ENHANCED ATTACHMENT/DETACHMENT FUNCTION

Resumen de: EP4601092A1

Disclosed is a cylindrical battery fixing apparatus including a lower housing formed in the shape of a flat plate, the lower housing having a through-hole configured to allow a cylindrical battery to be vertically inserted therethrough, an upper housing fixed to the top of the lower housing, the upper housing being generally formed in the shape of a column or a triangular prism, the upper housing being provided in a lower end thereof with guide recesses disposed at 120 degree intervals, and three fixing units inserted into the guide recesses of the upper housing, respectively, the fixing units being movable along an upper surface of the lower housing in a direction toward the center of the lower housing, each of the fixing units being provided on a front surface thereof with a fixing jaw configured to be inserted into and fixed to a beading portion of the cylindrical battery, wherein a fixing block is coupled to a rear surface of each of the fixing units, and two or more compression springs are provided between a respective fixing block and the upper housing.

NEGATIVE ELECTRODE MATERIAL, NEGATIVE ELECTRODE SHEET AND BATTERY

Resumen de: EP4601037A1

Provided are anode material, negative electrode plate and battery. The anode material includes a carbon matrix and a silicon-based active substance; the anode material contains an alkali metal element, an alkaline earth metal element, and an oxygen element, the alkali metal element includes Na and/or K, and the alkaline earth metal element includes Mg and/or Ca; a mass content of the alkali metal element is A ppm, a mass content of the alkaline earth metal element is B ppm, and a mass content of the oxygen element is E%; and the anode material satisfies the following relationship: 1 × 10<-5> ≤ (B/A) × E ≤ 5 × 10<2>. The anode material provided in the present application can enhance the cycling stability of the anode material while increasing the specific capacity of the anode material.

METHOD FOR PREPARING LITHIUM CARBONATE, LITHIUM CARBONATE PREPARED USING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING POSITIVE ELECTRODE ACTIVE MATERIAL PREPARED USING THE SAME

Resumen de: EP4600224A1

Provided are a method for preparing a lithium carbonate, a lithium carbonate prepared using the same, and a rechargeable lithium battery including a positive electrode active material prepared using the same, and more particularly, to a method for preparing a lithium carbonate, including mixing a lithium nickel-based composite oxide and a coating solution to form a first mixture where the coating solution includes a coating raw material, a precipitant, and a solvent, filtering the first mixture to recover a washing solution containing at least 1000 ppm of lithium, filtering the washing solution, mixing and heating the filtered washing solution and sodium carbonate to form a second mixture, and filtering, washing, and drying the second mixture, wherein the heating is performed at a temperature of about 50 °C to about 80 °C.

BATTERY MODULE TOP COVER STRUCTURE

Resumen de: EP4601099A1

The present invention provides a structure of a battery module including: a battery cell laminate; a housing having an open upper end and accommodating the battery cell laminate; and a top cover covering the upper end of the housing, wherein the top cover includes: a first layer 11 having a rigid body; a second layer 12 having a flexible body and laminated on the first layer 11; a ventilation hole 111 perforating the first layer 11 in vertical direction; and a non-circular slit 121 perforating the second layer 12 in the vertical direction, and the first layer 11 and the second layer 12 are fixed to each other along at least a section of edges thereof.

POSITIVE MATERIAL, PREPARATION METHOD THEREOF, AND SECONDARY BATTERY

Resumen de: EP4601025A1

The present disclosure provides positive material, preparation method, and secondary battery. The positive material includes lithium iron phosphate active material and coating layer. The lithium iron phosphate active material includes secondary particles, first primary particles are distributed between at least part of the secondary particles, and the coating layer includes first coating layers covering surfaces of secondary particles. The first coating layers cover surfaces of secondary particles in surface-coated state, and first coating layers each have a reticular structure. The surfaces of secondary particles each have surface-coated coating layer having reticular structure, which improves a capacity, rate performance, and cycle performance of the positive material. Through matching between the first primary particles and the secondary particles, compaction density of the positive material is increased, agglomeration of particles of the positive material is reduced, and the capacity and the rate performance of the positive material are improved.

BATTERY OF VEHICLE

Resumen de: EP4601094A1

The present disclosure provides a battery of a vehicle, including an interface part, a power part, and an operation part. The interface part includes a first interface surface and a second interface surface. The power part includes a battery body and is connected with the interface part. The operation part is connected with the power part. The interface part includes: a first battery interface adapted to a first peripheral interface, where the first battery interface is mounted on the first interface surface and electrically connected with the battery body; and a second battery interface adapted to a second peripheral interface, where the second battery interface is mounted on the second interface surface and electrically connected with the battery body. The first battery interface is coupled and electrically connected with the first peripheral interface in a battery compartment after the battery is inserted into the battery compartment.

BUSBAR ASSEMBLY AND BATTERY PACK

Resumen de: EP4601106A1

The present disclosure discloses a busbar assembly and a battery pack. The busbar assembly includes: a busbar body provided with a positioning groove and a welding groove, where the welding groove is configured to be welded to a pole terminal of a cell, a spacing is reserved between the positioning groove and the welding groove; a temperature acquisition element adhesively fixed in the positioning groove.

ELECTRODE ASSEMBLY FOR SECONDARY BATTERY AND BATTERY CELL COMPRISING SAME

Resumen de: EP4601109A1

Disclosed are a secondary battery electrode assembly and a battery cell including the same, and more particularly a secondary battery electrode assembly including at least one first electrode including a first electrode current collector and a first electrode tab extending from the first electrode current collector in one direction, at least one second electrode including a second electrode current collector and a second electrode tab extending the second electrode current collector in one direction, a separator interposed between the first electrode and the second electrode, a first electrode lead electrically connected to the first electrode tab, and a second electrode lead electrically connected to the second electrode tab, wherein the first electrode current collector has a first resin layer interposed between a pair of aluminum layers, and a first metal foil is interposed between the first electrode tab and the first electrode lead on at least a part of a region where the first electrode tab and the first electrode lead overlap each other.

NEGATIVE ELECTRODE MATERIAL, NEGATIVE ELECTRODE SLURRY, AND LITHIUM ION BATTERY

Resumen de: EP4601036A1

The present application relates to an anode material, a preparation method therefor and a lithium-ion battery. The anode material includes a silicon-based active substance and a coating layer located on at least a partial surface of the silicon-based active substance, and the silicon-based active substance includes silicon and a lithium silicate. According to the anode material of the present application, by controlling the type and crystallization degree of the lithium silicate in the material, the storage stability of a negative electrode paste can be improved, the cycle life of the anode material is prolonged, the bonding ability of the anode material and a current collector is increased, the high-temperature storage performance of a cell is improved, and thus the cycle performance of the lithium-ion battery is improved.

POWER SUPPLY DEVICE, METHOD FOR FORMING FILTER DEVICE, AND BATTERY SYSTEM INCLUDING POWER SUPPLY DEVICE

Resumen de: EP4601174A1

A power supply device includes: a primary-side printed circuit board (PCB); a secondary-side PCB insulated from the primary-side PCB; a filter device including a plurality of metal plates disposed between the primary-side PCB and the secondary-side PCB; and a transformer disposed on the filter device, and including a primary-side winding connected to the primary-side PCB and a secondary-side winding connected to the secondary-side PCB.

TEMPERATURE-CONTROLLABLE BATTERY HOUSING AND PRODUCTION METHOD THEREOF

Resumen de: EP4601078A1

Ein Batteriegehäuse (1) für eine Antriebsbatterie (2) eines Fahrzeugs umfasst eine Gehäusewandung (3), wobei die Gehäusewandung (3) einen Kunststoff aufweist. Das Batteriegehäuse (1) umfasst eine Fluidleitung (4) für ein Temperiermittel. Die Fluidleitung (4) ist wenigstens zum Teil in der Gehäusewandung (3) eingebettet.

BATTERY TEMPERATURE ADJUSTMENT SYSTEM AND BATTERY TEMPERATURE ADJUSTMENT METHOD

Resumen de: EP4600082A1

A battery temperature adjustment system is configured to adjust a temperature of an electricity storage device (100) mounted on a vehicle (1). The battery temperature adjustment system includes a temperature adjustment device (800) configured to adjust a temperature of the electricity storage device (100) and a processor (300) configured to control the temperature adjustment device (800). A setting mode of the temperature adjustment device (800) includes a first mode and a second mode.

POSITIVE ELECTRODE ACTIVE MATERIALS, PREPARATION METHODS THEREOF, POSITIVE ELECTRODES, AND RECHARGEABLE LITHIUM BATTERIES

Resumen de: EP4600219A1

A positive electrode active material including core particles including layered lithium nickel-manganese-based composite oxide, wherein each core particle is a secondary particle formed by agglomerating a plurality of primary particles, and a crystal size of the primary particle is about 105 nm to about 115 nm.

ELECTROLYTE, BATTERY CONTAINING SAME, AND ELECTRIC DEVICE

Resumen de: EP4601066A1

Embodiments of this application provide an electrolyte solution, a battery containing the same, and a power consuming apparatus. The electrolyte solution includes: a first additive, where the first additive includes at least one of compounds represented by formula (I) and formula (II); and a second additive, where the second additive includes at least one of SO₂ and CO₂. Cycle performance and service life of the battery containing the electrolyte solution are both improved.

LITHIUM REPLENISHING ADDITIVE FOR POSITIVE ELECTRODE AND PREPARATION METHOD THEREFOR, LITHIUM-RICH POSITIVE ELECTRODE, AND SECONDARY BATTERY

Resumen de: EP4601070A1

The present application relates to the technical field of material technology, more particularly to a cathode lithium-supplementing additive, a preparation method thereof, a lithium-rich cathode, and a secondary battery. The cathode lithium-supplementing additive includes: a lithium-rich iron-based material and a passivation material in situ bonded to an outer surface of the lithium-rich iron-based material; a chemical formula of the passivation material is aLi2O·bFexOy, 1≤x≤3, 1≤y≤4, 0.0001≤a≤0.01, 0.0001≤b≤0.01. The lithium-rich iron-based cathode lithium-supplementing additive of the present application has a good lithium-supplementing effect on the cathode material, and can timely supplement the loss of lithium ions in the material during the charge and discharge cycle. In addition, the passivation material can effectively prevent the interface from reacting with water and carbon dioxide in the environment to form excessive residual alkali, improve the moisture resistance and processing performance of the lithium-supplementing material, improve the cycle performance of the cathode material, and improve the cycle performance of the battery and service life.

HARD CARBON MATERIAL AND PREPARATION METHOD THEREFOR, ELECTROCHEMICAL DEVICE, AND ELECTRONIC DEVICE

Resumen de: EP4601042A1

This application relates to a hard carbon material and a preparation method thereof, an electrochemical apparatus, and an electronic apparatus. The hard carbon material includes a porous skeleton, a first element, and element zinc, where the first element includes at least one of element nitrogen, element sulfur, element boron, element phosphorus or element selenium. A percentage of the first element with respect to a total mass of the hard carbon material is denoted by A1%, and a percentage of the element zinc with respect to the total mass of the hard carbon material is denoted by A2%, where the hard carbon material satisfies 1.5≤A1/A2≤5. When applied to an electrochemical apparatus, the hard carbon material in this application can significantly improve the energy density of the electrochemical apparatus.

NEGATIVE ELECTRODE MATERIAL AND BATTERY

Resumen de: EP4601034A1

Provided are anode material and battery. The anode material includes a primary particle. The primary particle includes silicon grains. An average particle size of the silicon grains of the anode material measured at 25 °C is M0 nm. After the anode material is heated to 1000 °C under nitrogen protection and then subjected to temperature holding for 1 h, the average particle size of the silicon grains of the anode material measured at a temperature naturally cooled to 25 °C is M1 nm. A crystallization instability degree of the anode material is F, where F=(M1-M0)/M0, M1> M0, and 0.01≤F≤500. According to the anode material provided in the present disclosure, the problem of stress concentration caused by the primary particle including the silicon grains in a lithium deintercalation process may be attenuated, such that the structure stability of the anode material is improved, and an expansion rate of the material is reduced, thereby improving the electrochemical performance and cycling performance of the anode material.

POWER BATTERY, AND HEALTH EVALUATION METHOD AND HEALTH EVALUATION APPARATUS THEREFOR

Resumen de: EP4601074A1

The present disclosure relates to a power battery, a health evaluation method and a health evaluation device thereof. The power battery includes a cell, an expansion force sensor and an electrode sheet sensor. The cell includes electrode sheets. The expansion force sensor is electrically connected to the cell, and is configured to collect expansion forces at different thickness positions of the cell, and assess a health state of the power battery according to the expansion forces. The electrode sheet sensor is electrically connected to the cell, and is configured to collect the thicknesses of the electrode sheets at different thickness positions of the cell, and assess the health state of the power battery according to the thicknesses of the electrode sheets.

HEAT SINK ASSEMBLY

Resumen de: EP4601083A1

A heat sink assembly including a heat sink having a plurality of ribs extending in a longitudinal direction of the heat sink, open first and second end faces at respective first and second longitudinal ends and a flow path for a coolant formed by the ribs. The flow path includes an inlet flow path, at least one outlet flow path and a return flow path. A plurality of first end plugs close the first end face. A second end plug closes the second end face. The second end plug includes a flow guide on the return flow path. The flow path is configured so that a coolant introduced from the first longitudinal end flows along the inlet flow path, along the return flow path by the flow guide into the at least one outlet flow path and then flows to the first longitudinal end.

NEGATIVE CURRENT COLLECTOR, PREPARATION METHOD OF THE SAME, SODIUM SECONDARY BATTERY, AND ELECTRICAL DEVICE

Resumen de: EP4601073A1

The present application provides a negative current collector and a preparation method thereof, a sodium secondary battery, and an electrical device. The negative current collector includes a matrix and a functional layer disposed on at least one side of the matrix and includes a multifunctional additive. The multifunctional additive includes NaxMNy*zH2O, where: M includes an atom capable of forming an alloy with Na; N includes at least one of atom O, atom S, and atom Se; and 0

ELECTRODE ASSEMBLIES FOR SECONDARY BATTERIES THAT INCLUDE CURRENT LIMITERS

Resumen de: TW202431690A

An electrode assembly includes unit cells stacked in a stacking direction, each including an electrode structure, a separator structure, and a counter-electrode structure. The electrode structure includes an electrode current collector and an electrode active material layer, the electrode structure extends in a longitudinal direction perpendicular to the stacking direction, an end portion of the electrode current collector extends past an outer surface of the electrode active material layer and the separator structure. The electrode assembly further includes an adhesive layer including a resistive polymeric material, and an electrode busbar attached to the end portions of the electrode current collectors through the adhesive layer. The adhesive layer is configured to adhere with the electrode busbar and the electrode current collectors below a transition temperature, and at least partially melt at or above the transition temperature to increase an electrical resistance between the electrode busbar and the electrode current collectors.

MONOLITHIC ELECTRODE ASSEMBLIES WITH CONTAINED THREE-DIMENSIONAL CHANNELS USABLE WITH ION EXCHANGE MATERIALS

Resumen de: WO2024076987A1

A rechargeable battery cell can include an electrode having a plurality of three-dimensional channels defined therethrough, with at least 90% of three dimensional channels sized to have pores between 50 nanometers to 400 microns. An ion exchange material can be arranged to define an interface with at least a portion of the electrode. In some embodiments the electrode includes a zinc (Zn) containing anode and a cathode including at least one of nickel hydroxide (Ni (OH)2), nickel oxyhydroxide (NiOOH), manganese dioxide (Mn02), copper oxide, and bismuth oxide.

SOLID STATE ADDITIVES FOR IRON NEGATIVE ELECTRODES

Nº publicación: EP4599488A1 13/08/2025

Solicitante:

FORM ENERGY INC [US]
Form Energy, Inc

Resumen de: TW202429736A

According to one aspect, an additive for an iron negative electrode of an alkaline electrochemical cell may include a powder of discrete granules including agglomerated particles, the agglomerated particles including at least one metal sulfide.