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TREATMENT METHOD FOR LITHIUM/NICKEL/COBALT-CONTAINING MATERIAL

Resumen de: WO2025249461A1

Provided is a treatment method for a lithium/nickel/cobalt-containing material that includes a leaching step (S01) for adding an acidic solution that contains an inorganic acid to a lithium/nickel/cobalt-containing material to leach lithium, nickel, and cobalt into the acidic solution, a reduction leaching step (S02) for adding a reducing agent to the acidic solution to leach more lithium, nickel, and cobalt, a neutralization step (S03) for adding a calcium compound to the lithium/nickel/cobalt leachate to generate a nickel/cobalt precipitate that includes nickel and cobalt, a solid/liquid separation step (S04) for separating the nickel/cobalt precipitate and the lithium leachate, and a nickel/cobalt recovery step (S05) for recovering nickel and cobalt from the nickel/cobalt precipitate.

LITHIUM BATTERY OPERATING DATA FEATURE MAP EXTRACTION METHOD, AND APPARATUS, MEDIUM AND PRODUCT

Resumen de: WO2025246772A1

A lithium battery operating data feature map extraction method, and an apparatus, a medium and a product. The method comprises: acquiring operating data of a lithium battery of an energy storage system; applying a sliding window to select target operating data from among the operating data, so as to obtain a plurality of target data groups; ranking a plurality of pieces of operating data in each target data group according to the sequence of preset index moments, so as to obtain an initial matrix; performing mean-variance normalization processing on each column of the initial matrix, so as to obtain a normalized matrix; calculating a covariance matrix of the normalized matrix; performing singular value decomposition on the covariance matrix, so as to obtain a feature vector matrix; on the basis of the feature vector matrix, calculating a dimension reduction matrix corresponding to each target data group; scaling the dimension reduction matrix to construct a three-dimensional feature map matrix; and converting the three-dimensional feature map matrix into an image, so as to obtain a feature image of the lithium battery. Thus, the comprehensiveness, universality and robustness of feature extraction can be improved.

BATTERY PACK AND ELECTRICAL DEVICE

Resumen de: WO2025246996A1

Disclosed in the present application are a battery pack and an electrical device. In the battery pack, first flow guide cavities are provided inside a first side wall, supports are provided inside an accommodation cavity of a box body, and second flow guide cavities are provided inside the supports; a protruding portion is provided on the first side wall, and a third flow guide cavity is provided inside the protruding portion, the third flow guide cavity being in communication with both the first flow guide cavities and the second flow guide cavities; battery cells are stacked with the supports, first through holes are formed in the support surfaces of the supports, and first explosion-proof valves are provided on the battery cells, the first explosion-proof valves being arranged opposite to the first through holes; second explosion-proof valves are provided on the first side wall.

ELECTRODE ASSEMBLY AND SECONDARY BATTERY

Resumen de: WO2025246884A1

The present application relates to an electrode assembly and a secondary battery. A first electrode sheet comprises a first current collector and a first active material layer, the first current collector having a first surface facing a second electrode sheet, and the first active material layer being disposed on the first surface. The second electrode sheet comprises a second current collector and a second active material layer, the second current collector having a second surface facing the first active material layer, and the second active material layer being disposed on the second surface. The electrode assembly further comprises a first tab and a first adhesive layer. The first surface has a first bare foil region; the first bare foil region, the first active material layer, and a separator jointly enclose to form a first space; the first tab is partially disposed in the first space, the first adhesive layer is disposed on the surface of the first tab facing the first current collector so as to bond the first bare foil region to the first tab, and the other surface of the first tab is in contact with the separator. The electrode assembly and the secondary battery of the present application can reduce the risk of the separator being pierced, thereby making full use of space, and boosting energy density.

COATING, BATTERY, AND ELECTRICITY-CONSUMPTION DEVICE

Resumen de: WO2025246965A1

The present disclosure relates to the technical field of coatings, and specifically discloses a coating, a battery, and an electricity-consumption device. A total heat release of the coating in a first temperature range and a second temperature range ranges from 30 J/mg to 60 J/mg. The first temperature range is from 120°C to 220°C. The second temperature range is from 220°C to 270°C.

BATTERY PACK

Resumen de: US2025370057A1

Problem To provide a battery pack capable of performing degradation diagnosis of a battery by a single body. Solution A battery pack 40 includes a battery 50 that supplies electric power to a motor 2 of a hybrid system 10, a resistor 45 that is electrically connected to the battery 50 by an electric circuit, a switch 46 that is provided in the electric circuit 174 between the battery 50 and the resistor 45 and performs opening/closing of the electric circuit 174 between the battery 50 and the resistor 45, and a control portion 85 that executes control of closing the switch 46 in accordance with an input signal 86 and diagnoses a degradation degree of the battery 50 on the basis of voltage fluctuation of the battery 50 when an electric current flows from the battery 50 toward the resistor 45.

Method for Producing Lithium Manganese Iron Phosphate

Resumen de: US2025368512A1

A method for producing lithium manganese iron phosphate, the method comprising: obtaining first precursor particles by mixing metal powder containing iron and manganese with a phosphate compound, and stirring and pulverizing; obtaining second precursor particles by mixing the first precursor particles with a lithium source, and stirring and pulverizing; and calcining the second precursor particles to obtain lithium manganese iron phosphate.

METAL COMPOSITE COMPOUND AND CATHODE ACTIVE MATERIAL INCLUDING METAL COMPOSITE COMPOUND AS PRECURSOR

Resumen de: US2025368538A1

The present disclosure relates to a metal composite compound including at least nickel (Ni) and boron (B), wherein, at a molar ratio of lithium (Li) to a metal element (M) in the metal composite compound (Li/M) of 1.01, a calcined product of the metal composite compound, maintained for a predetermined time at a calcination temperature of 730° C. in an oxygen atmosphere, exhibits a β value of 300.0 or less in a fitting function Y=α×log10 X +β that is a semi-logarithmic graph of time T and a crystallite size S1, with the common logarithm of the time T (unit: minutes) for maintaining the metal composite compound at a calcination temperature of 730° C. on the X-axis and the crystallite size S1 of the (003) plane (unit: Å) on the Y-axis.

ENGINE VIBRATION REDUCTION STRUCTURE

Resumen de: US2025368028A1

A heat exchanger that is for raising a temperature of a battery of a plug-in hybrid electric vehicle is disposed away from a vehicle-upper side of an engine mount. Further, the first bracket is disposed on the front side in the vehicle front-rear direction with respect to the heat exchanger in the vehicle plan view to couple the heat exchanger and the engine mount, the second bracket is disposed on the rear side in the vehicle front-rear direction with respect to the heat exchanger in the vehicle plan view to couple the heat exchanger and the engine mount.

ELECTROCONDUCTIVE PRESSURE-SENSITIVE ADHESIVE TAPE

Resumen de: US2025368864A1

An electroconductive pressure-sensitive adhesive tape includes at least an electroconductive pressure-sensitive adhesive layer containing at least a rubber component and electroconductive particles. The rubber component contains a polyisobutylene (A) having a viscosity average molecular weight of 400,000 or more and 800,000 or less and a polyisobutylene (B) having a viscosity average molecular weight of 100,000 or less. The electroconductive pressure-sensitive adhesive tape achieves both a superior adhesive property and a high swelling resistance to an electrolyte layer, especially, a high swelling resistance to an electrolyte layer containing dimethyl carbonate.

CARBON SHEET AND METHOD OF PRODUCING SAME, LAMINATE, AND ELECTRICAL STORAGE DEVICE

Resumen de: US2025368514A1

Provided are a carbon sheet having excellent performance in terms of inhibiting lithium dendrite growth and a method of producing this carbon sheet. Also provided are a laminate and an electrical storage device that include a carbon sheet having excellent performance in terms of inhibiting lithium dendrite growth. The carbon sheet is a carbon sheet containing carbon nanotubes, wherein the carbon nanotubes and the carbon sheet each have pores, and the distribution states of these pores satisfy specific requirements.

MULTI-LAYERED THERMAL BARRIER ASSEMBLIES FOR TRACTION BATTERY PACKS

Resumen de: US2025372768A1

A device may include a thermal barrier assembly arranged between a first battery cell and a second battery cell. A device may include a thermal insulating layer of the thermal barrier assembly configured to reduce thermal energy transfer between the first battery cell and the second battery cell. A device may include a first heat spreader fin and a second heat spreader fin each configured to establish a path for directing thermal energy from the first battery cell or the second battery cell away from the thermal insulating layer.

BATTERY PACK WITH DIRECT COOLING CHANNELS

Resumen de: US2025372766A1

A battery pack, comprising one or more battery cells each including a first end and a second end opposite the first end and one or more busbars communicatively coupled to the one or more battery cells at the first end. The battery pack further comprising a main body, comprising an upper end, a lower end opposite and spaced from the upper end, a first sump at the upper end, a second sump, one or more cell openings extending from the first sump to the second sump and configured to receive the one or more battery cells, and one or more fluid channels arranged in each of the one or more cell openings, the one or more fluid channels extending from the upper end to the lower end so that the fluid can directly contact the one or more battery cells.

PARTITION MEMBER, ASSEMBLED BATTERY AND METHOD FOR CONTROLLING HEAT TRANSFER IN AN ASSEMBLED BATTERY

Resumen de: US2025372753A1

A partition member has two surfaces in a thickness direction, and separates single cells that make up an assembled battery. When the average temperature of one of the two surfaces exceeds 180° C., a thermal resistance per unit area (θ1) in the thickness direction satisfies Expression 1 below, and when the average temperatures of both of the two surfaces do not exceed 80° C., a thermal resistance per unit area (θ2) in the thickness direction satisfies Expression 2 below.θ1≥5.0×1⁢0-3⁢(m2·K/W),and(Expression⁢1)θ2≤4.0×1⁢0-3⁢(m2·K/W).(Expression⁢2)

CONTROL OF ALTERNATING CURRENT BATTERY HEATING TO GENERATE SOUNDS

Resumen de: US2025372754A1

A system for thermal control of a battery system includes a heating control module configured to generate an alternating current (AC) heating current and heat the battery system to a desired temperature by applying the AC heating current to the battery system. The heating control module is configured to control a shape of the AC heating current to cause a component of the battery system to emit a selected sound pattern having a selected frequency, amplitude and shape.

NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME

Resumen de: US2025372614A1

Provided are a negative electrode for a lithium secondary battery and a method of manufacturing the same. The negative electrode for a lithium secondary battery according to an embodiment of the present invention includes a silicon-based material doped with lithium having a content A, iron having a content B, and aluminum having a content C, wherein, by ICP analysis,5,000⁢ppm≤A≤150,TagBox",", "NumberComma", RuleSyntaxForm, "0"000⁢ppm,5⁢ppm≤B≤1,TagBox",", "NumberComma", RuleSyntaxForm, "0"500⁢ppm,2.5ppm≤C≤1,TagBox",", "NumberComma", RuleSyntaxForm, "0"000⁢ppm.

NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY COMPRISING NEGATIVE ELECTRODE, AND METHOD FOR PREPARING NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY

Resumen de: US2025372615A1

Disclosed is a negative electrode composition, a negative electrode for a lithium secondary battery, including the same, and a lithium secondary battery including the negative electrode, and a method for preparing a negative electrode composition.

METHOD FOR DISASSEMBLING CHEMICAL BATTERY

Resumen de: WO2025249428A1

Provided is a method for disassembling a chemical battery, wherein a recovery rate of 95% or more for cobalt and nickel and a recovery rate of 80% or more for lithium are achieved for the chemical battery, and the method contributes to the recovery of valuable metals from the chemical battery. A method for disassembling a chemical battery comprises: an electrode assembly separation step in which the casing of the chemical battery is cut and the electrode assembly is taken out from the inside of the casing; a first peeling step in which a fixing portion of the electrode assembly obtained in the electrode assembly separation step is peeled off; and a second peeling step in which each of a positive electrode foil, a separator, and a negative electrode foil constituting the electrode assembly is peeled off. Another method for disassembling a chemical battery comprising a casing, an electrode assembly, an electrode terminal plate, and a current collector, the electrode assembly and the electrode terminal plate being electrically connected via the current collector, comprises a cutting step in which the casing and the current collector are cut. A method for disassembling a chemical battery comprising a casing, an electrode assembly, an electrode terminal plate, and a current collector comprises: a cutting step in which the casing and the current collector are cut; and an electrode assembly separation step in which the electrode assembly is extruded by an auxiliary unit.

CYLINDRICAL BATTERY

Resumen de: WO2025249159A1

A battery (10) comprises: an electrode body (14) in which a positive electrode (11) and a negative electrode (12) are wound with a separator (13) therebetween; an external can (20) which accommodates the electrode body (14); and a sealing body (19) which closes an opening of the external can (20). The sealing body (19) has: a sealing plate (22) which has an annular protruding part (34) that protrudes to the electrode body (14) side in the axial direction; a terminal plate (21) to which is joined a positive electrode lead (17) that extends from the electrode body (14); and an annular insulating plate (23) which has an outer peripheral surface (40) that is internally fitted and fixed to an inner peripheral surface of the annular protruding part (34) and an inner peripheral surface (60) that is externally fitted and fixed to an outer peripheral surface of the terminal plate (21). At least one recess that is recessed in the radial direction is provided to at least of the outer peripheral surface (40) and the inner peripheral surface (60).

SECONDARY BATTERY

Resumen de: WO2025249437A1

This secondary battery comprises: a positive electrode; a negative electrode; a separator disposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte. The separator comprises a sheet-shaped base material and a spacer that is disposed on the main surface of the base material. The spacer includes a region A in which the thickness of the spacer decreases continuously or stepwise from TC to TE from the center part side toward the end edge side of the positive electrode. The vicinity of the end edge of the positive electrode faces the region A.

WIRING STRUCTURE, BATTERY PACK TRAY, BATTERY PACK AND VEHICLE

Resumen de: WO2025246982A1

The present application discloses a wiring structure, a battery pack tray, a battery pack and a vehicle. The wiring structure comprises: a longitudinal beam, wherein the longitudinal beam is arranged on a battery pack tray in the front-back direction of a vehicle, a wiring cavity is formed in the longitudinal beam, the wiring cavity is arranged in the length direction of the longitudinal beam and used for laying wires, and two ends of the longitudinal beam in the length direction are used for allowing the wires to enter and exit the wiring cavity. In the present application, a profile having two communicated ends is used as the longitudinal beam, and the wiring cavity is arranged in the longitudinal beam and is used for laying the wires, so that the structural strength is higher, the extrusion resistance and the impact resistance are better, and the safety of a battery pack structure is significantly improved.

HEATING SYSTEM FOR BATTERY PACK AND ELECTRIC APPARATUS

Resumen de: WO2025247001A1

A heating system for a battery pack and an electric apparatus. The heating system for the battery pack comprises a battery pack, an electric device, and a wire. The battery pack comprises a first battery cell group and a second battery cell group which are connected in series, the wire has a first end and a second end which are opposite, the first end of the wire is connected to a series-connected point between the first battery cell group and the second battery cell group, and the second end of the wire is connected to a neutral point of the electric device.

COMMUNICATION APPARATUS, COMMUNICATION SYSTEM, BATTERY PACK, POWER SYSTEM AND VEHICLE

Resumen de: WO2025246966A1

A vehicle, comprising a power system, which comprises a battery pack, wherein the battery pack comprises a communication apparatus. A communication system, comprising a communication apparatus. The communication apparatus comprises a sampling device, a first power line carrier communication device, a first power line and a second power line, wherein the first power line is used for connecting to a positive electrode of a cell assembly, and the second power line is used for connecting to a negative electrode of the cell assembly; two ends of the sampling device are used for collecting sampling information corresponding to the cell assembly; and two ends of the first power line carrier communication device are respectively connected to the first power line and the second power line, and the first power line carrier communication device is connected to the sampling device, and is used for transmitting the sampling information corresponding to the cell assembly.

BATTERY PACK AND ELECTRIC DEVICE

Resumen de: WO2025246776A1

Disclosed are a battery pack and an electric device. In the battery pack, a first flow guide cavity is provided inside a side wall; a third explosion-proof valve is provided on a case; a first tray is provided inside the case, and a second flow guide cavity is provided inside the first tray; a first battery module is arranged on the first tray, and a first explosion-proof valve is provided at the end of first battery cells facing the first tray; a second tray is provided on the side of the first battery module facing away from the first tray, and a third flow guide cavity is provided inside the second tray; and a second battery module is arranged on the second tray, and a second explosion-proof valve is provided at the end of second battery cells facing the second tray.

Secondary Battery and Ultrasonic Welding Device and Welding Method for Secondary Battery

Nº publicación: US2025367770A1 04/12/2025

Solicitante:

LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd

Resumen de: US2025367770A1

An ultrasonic welding device includes an anvil provided so that an overlapping surface of an electrode tab and an electrode lead, which are provided in an electrode assembly, are configured to be disposed thereon; a horn configured to weld the overlapping surface disposed on the anvil; and an inspection member configured to inspect a horizontal level of an opposing member with respect to the overlapping surface, based on an overlapping surface horizontal value that is a horizontal value of the overlapping surface with respect to a predetermined reference surface and an opposing horizontal value that is a horizontal value of the opposing member, which is one of a welding part of the horn configured to face the overlapping surface and a disposing part of the anvil, on which the overlapping surface is configured to be disposed, with respect to the predetermined reference surface.