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COOLING PLATE ASSEMBLY OF BATTERY PACK CASE AND METHOD OF MANUFACTURING SAME

Resumen de: US2025349928A1

A cooling plate assembly of a battery pack case includes a middle plate, a cooling plate bonded to a lower surface of the middle plate, and a plurality of collision reinforcements which are bonded to an upper surface of the middle plate and include a center member and a cross member, wherein the middle plate, the cooling plate, and the collision reinforcements are integrally braze-bonded. A structural stability of the battery pack case can be sufficiently secured, an assembly process can be dramatically simplified, and a manufacturing defective rate can also be innovatively reduced so that quality control can be very easily performed.

ENERGY STORAGE SYSTEM

Resumen de: US2025349923A1

An energy storage system including a battery module and a temperature difference adjustment structure is provided. The temperature difference adjustment structure is provided on the battery module, and the temperature difference adjustment structure includes a first plate and a second plate. The second plate includes a first side and a second side opposite to the first side. The first side is connected to the first plate, and the second side is closer to the battery module relative to the first side.

PET FILM PRESSING CCS ASSEMBLY

Resumen de: US2025351267A1

A polyethylene terephthalate (PET) film pressing cell connection system (CCS) assembly is provided. The PET film pressing CCS assembly includes a PET film, where an upper surface of the PET film is provided with adhesive and adhered with two rows of aluminum foils; the upper surface of the PET film between the two rows of aluminum foils is adhered with a flexible printed circuit (FPC); two sides of the FPC are provided with protruding nickel sheets; the nickel sheets at the two sides of the FPC are welded to the two rows of aluminum foils, respectively; the FPC and the aluminum foils welded by the nickel sheets are adhered and fixed to the PET film through pressing; and the upper surface of the PET film is provided with a window corresponding to a bending groove of the aluminum foil.

REGENERATIVE BRAKING CURRENT CONTROL IN POWER TOOL

Resumen de: US2025350214A1

A power tool is provided including: a tool housing; a motor disposed within the tool housing; a battery receptacle arranged to be coupled to a battery pack having a rated capacity; a power switch circuit disposed between the battery receptacle and the motor; and a controller that controls the power switch circuit to drive the motor. The controller is configured to: determine or receive a pack ID associated with the rated capacity of the battery pack; set a braking profile for electronically braking the motor based on the pack ID; and apply an electronic brake to the motor in accordance with the set braking profile upon detection of an event associated with stoppage of the motor.

SELF-SUPPORTING ELECTROCHEMICAL DEVICE MIXTURE FILM, ELECTRODE, AND ELECTROCHEMICAL DEVICE

Resumen de: US2025349857A1

A self-supporting electrochemical device mixture film exhibiting excellent strength and flexibility without a support. A self-supporting electrochemical device mixture film containing: at least one of an electrode active material or a solid electrolyte; and a binder, the binder containing a TFE-based polymer composition, the TFE-based polymer composition containing a TFE-based polymer and at least one compound selected from the group consisting of a compound of formula (1) and a compound represented of formula (2):wherein m is 4 to 20; M1 is H, a metal atom, NR54 (where R5s are optionally the same or different from each other and each represent H or a C1-C10 organic group), or the like; and p is 1 or 2, andwherein n is 4 to 20; M2 is H, a metal atom, NR54 (where R5 is defined above), or the like; and q is 1 or 2.

BATTERY CATHODES CONTAINING MXENES PROCESSED FROM WATER-BASED SLURRIES

Resumen de: US2025349853A1

A method, comprising: combining at least a MXene, a solvent, and an electrochemically active material to form a slurry, the solvent consisting essentially of water, alcohol, or a combination of alcohol and water. An electrode, comprising: a structure comprising a MXene and an electrochemically active material, the structure optionally having a cross-sectional dimension of from about 1 to about 300 μm in thickness, preferably from about 10 to about 100 μm; and optionally a substrate on which the film is disposed. A device, the device comprising an electrode according to the present disclosure (for example, according to any one of Aspects 14-19). A method, comprising operating a device according to the present disclosure (for example, according to any one of Aspects 21-22).

ELECTROCHEMICAL CELL WITH TMCCC ELECTRODES IN AN ACETONITRILE SOLVENT INCLUDING A DINITRILE ADDITIVE

Resumen de: US2025349895A1

A system and method for a liquid electrolyte used in secondary electrochemical cells having at least one electrode including a TMCCC material, the liquid electrolyte enabling an increased lifetime while allowing for fast discharge to extremely high depth of discharge. The addition of dinitriles to liquid electrolytes in electrochemical cells in which energy storage is achieved by ion intercalation in transition metal cyanide coordination compounds (TMCCC) has the advantage of increasing device lifetime by inhibiting common chemical and electrochemical degradation mechanisms.

ELECTRIFIED VEHICLE

Resumen de: US2025346154A1

Electrified vehicle includes a battery unit, a cooling system that cools the battery unit according to the instructed target battery temperature, an air conditioner that controls the temperature in the vehicle cabin, and a control device that can selectively execute the plurality of driving modes. The plurality of traveling modes includes a normal traveling mode and a high-load traveling mode in which a traveling load is higher than that in a case where the normal traveling mode is executed. In a state in which heating in the vehicle cabin is required, the control device (a) instructs the cooling system to set a first target temperature as a target battery temperature when the high-load running mode is executed, and (b) instructs the cooling system to set a second target temperature higher than the first target temperature as a target battery temperature when the normal running mode is executed.

THERMISTOR BASED THERMAL RUNAWAY DETECTION SYSTEM FOR ELECTRIC VEHICLE

Resumen de: US2025349920A1

An electric vehicle includes an electric motor configured for powering the electric vehicle; a battery system configured for supplying power to the electric motor, where the battery system includes a plurality of battery modules; one or more thermistors attached to each battery module, each thermistor configured to measure a temperature of the air around the battery module to which the thermistor is attached; and a controller configured to determine, based on temperatures measured by the one or more thermistors at different times, a rate of change of a temperature of the air around the battery module and configured to generate, in response to a determined rate of change that exceeds a threshold rate of change, a signal.

ABNORMALITY DETERMINATION SYSTEM AND ABNORMALITY DETERMINATION METHOD

Resumen de: US2025349921A1

The abnormality determination system is a system for determining an abnormality of a battery, and includes a battery, a cooling fan for cooling the battery, a submergence sensor for detecting submergence of water in a part where the cooling fan is provided, and an ECU for controlling the cooling fan. ECU performs control to operate the cooling fan after the submergence of water is detected by the submergence sensor and after a predetermined condition for determining an abnormality of the cooling fan is satisfied, and determines that the cooling is abnormal when a specific condition indicating that the cooling fan is not functioning normally is satisfied.

IMPURITY MANAGEMENT PROCESS FOR LITHIUM-ION BATTERY RECYCLING

Resumen de: US2025349922A1

Methods are provided for removing impurities from recycled battery black mass. The method includes mixing a delithiated black mass with a first solution to form a pre-leached delithiated black mass and a pre-leach solution, separating the pre-leached delithiated black mass from the pre-leach solution, mixing the separated pre-leached delithiated black mass and a second aqueous solution to form a mixture comprising graphite and a leachate solution, and separating the graphite and the leachate solution. The pre-leach solution is comprised of a first group of impurity ions while the leachate solution is comprised of a second group of impurity ions and cathode metal ions.

COOLING COMPONENT AND BATTERY PACK

Resumen de: US2025349935A1

The present application provides a cooling component and a battery pack. The cooling component include: a cooling bottom plate supporting bottoms of a battery cell; and a cooling side plate bent and connected to one side of the whole of the cooling bottom plate, and the cooling side plate abuts on and is thermally conductively connected to one side of the battery cell. The cooling side plate includes a flow channel part and a buffered part. The flow channel part is provided with one or more cooling flow channels. Each cooling flow channels is configured to circulate the cooling medium. The buffered part is provided with a buffer cavity, and the buffer cavity extends along a length direction of the cooling side plate.

ELECTROLYTES INCLUDING PHOSPHATE TRIESTER SOLVENTS FOR BATTERIES THAT CYCLE LITHIUM IONS AND BATTERIES INCLUDING THE SAME

Resumen de: US2025349900A1

An electrolyte for a battery that cycles lithium ions includes an organic solvent and a lithium salt in the organic solvent. The organic solvent includes a primary solvent component and a secondary solvent component. The primary solvent component includes a phosphate triester having the formula R1O—P(═O)(OR2)(OR3), wherein R1, R2, and R3 are each individually a fluorinated or nonfluorinated organic group selected from the group consisting of hydrocarbyl, heterohydrocarbyl, silyl, siloxy, alkoxysilyl, cyano, and alkylcyano. The lithium salt includes lithium nitrate (LiNO3). The lithium nitrate is present in the organic solvent at a concentration of greater than or equal to 0.5 moles per liter and less than or equal to 4 moles per liter. The electrolyte is configured to provide a medium for the conduction of lithium ions between a negative electrode including a lithium-based electroactive negative electrode material and a positive electrode including an olivine-type lithium transition metal oxide.

BINDER COMPRISING COPOLYMER, ANODE FOR SECONDARY BATTERY COMPRISING SAME BINDER, SECONDARY BATTERY COMPRISING SAME ANODE, AND METHOD FOR POLYMERIZING SAME COPOLYMER

Resumen de: US2025349855A1

The present invention relates to a poly(vinyl alcohol-co-acrylic acid-co-cyanoethylated vinyl alcohol) (PVA-PAA-CEPVA) copolymer and a method for preparing same, and an anode slurry, an anode, and a secondary battery comprising the copolymer.

ELECTROLYTE, LITHIUM METAL BATTERY AND PREPARATION METHOD THEREOF, AND ELECTRIC APPARATUS

Resumen de: US2025349896A1

An electrolyte, a lithium metal battery, a preparation method thereof, and an electric apparatus are provided. The electrolyte includes a lithium salt, an organic solvent, and an electrolyte additive. The additive has a structure of R-M-X, where R is a hydrocarbon group, M is a metal having a standard electrode potential higher than that of lithium, and X is an anion or a hydrocarbon group. M can form an intermetallic compound or alloy solid solution with lithium. The lithium metal battery includes a negative electrode having a current collector coated with a lithiophilic layer. The lithiophilic layer contains M, which also has a standard electrode potential higher than that of lithium and can form an intermetallic compound or alloy solid solution with lithium. This configuration enhances the lithiophilicity of the negative electrode surface, promotes uniform lithium nucleation, and improves the cycling performance of the lithium metal battery.

Pouch-Type Secondary Battery Cell

Resumen de: US2025350010A1

A pouch-type secondary battery according to one embodiment of the present invention comprises: a pouch member having an inner space; an electrode assembly accommodated in the inner space of the pouch member; a guide frame accommodated in the inner space of the pouch member; and a pipe for allowing communication between the outside and the inside of the pouch member, wherein the pipe can pass through the pouch member and at least one portion of the guide frame.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: US2025350008A1

A battery cell, a battery, and an electric device, where the battery cell includes a first wall, an electrode terminal, and a separation component; the electrode terminal is mounted on the first wall; at least part of the separation component is disposed between the first wall and the electrode terminal; and at least a partial structure of the separation component has a yield strength Q1, where Q1 satisfies: Q1≥30 MPa.

INSULATION SHEET AND BATTERY MODULE

Resumen de: US2025349940A1

The present disclosure relates to an insulation sheet, and a battery module including the insulation sheet. The insulation sheet includes one or more first layers, and one or more second layers alternately stacked with the first layers, wherein at least one of the one or more second layers includes an insulation material and an additive configured to improve a coating uniformity thereof.

HEAT INSULATING SHEET FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY MODULE INCLUDING THE SAME

Resumen de: US2025349942A1

Examples of the present disclosure relate to a heat insulating sheet for a rechargeable lithium battery, and a rechargeable lithium battery module including the heat insulating sheet. The heat insulating sheet for a rechargeable lithium battery includes a first base layer and an aerogel-containing layer that are stacked together. The aerogel-containing layer includes a fibrous support, an aerogel, a first binder, and a second binder, and the second binder is a meltable binder with a melting point that ranges from about 30° C. to about 80° C.

SECONDARY BATTERY AND ELECTRONIC DEVICE

Resumen de: US2025349835A1

A secondary battery and an electronic device. The secondary battery includes a negative electrode, a positive electrode, and an electrolyte solution. The negative electrode includes a negative current collector and a negative electrode composite layer disposed on at least one surface of the negative current collector. The negative electrode composite layer contains a conductive agent and silicon-carbon composite particles. An average particle diameter of the silicon-carbon composite particles is D μm. The silicon-carbon composite particles include silicon and carbon. Based on a sum of masses of the silicon and carbon, a mass percent of the silicon is C %, 0.21≤C/D2≤1.2. The electrolyte solution includes propylene carbonate and ethylene carbonate. Based on a mass of the electrolyte solution, a sum of mass percent of the propylene carbonate and the ethylene carbonate is H %, 15≤H≤50.

SECONDARY BATTERY AND ELECTRIC APPARATUS

Resumen de: US2025349839A1

A secondary battery and an electric apparatus are provided. The secondary battery includes a negative electrode plate comprising a negative electrode current collector and a negative electrode film layer disposed on at least one surface of the negative electrode current collector. The negative electrode film layer includes a lower region and an upper region. The lower region comprises a first negative electrode active material, and the upper region comprises a second negative electrode active material. A median Raman value I_D/I_G of the first negative electrode active material is denoted as R150, and a median Raman value I_D/I_G of the second negative electrode active material is denoted as R250, where R150<R250. The first negative electrode active material has a higher graphitization degree than the second negative electrode active material. The disclosed design improves the fast-charging performance and energy density of the secondary battery.

Olivine Electrode Designs with Polyacrylic Acid, Styrene-Butadiene-Rubber, and Polytetrafluoroethylene Triple Binder

Resumen de: US2025349824A1

A cathode electrode for a secondary battery, a vehicle battery, and method of forming a cathode electrode. The cathode electrode includes a cathode current collector and a cathode disposed on a surface of the cathode current collector. The cathode includes an active material including at least one of lithium iron phosphate and lithium manganese iron phosphate, a binder including polytetrafluoroethylene, styrene-butadiene-rubber, and at least one of polyacrylic acid and a polyacrylic acid-polyacrylonitrile copolymer, and a conductive filler, wherein the cathode electrode exhibits an areal capacity in the range of 3 milliamp-hours per square centimeter to 10 milliamp-hours per square centimeter. The vehicle battery includes the cathode disposed on a cathode current collector.

LITHIUM PRIMARY BATTERY

Resumen de: US2025350009A1

A lithium primary cell includes an electrode body which includes positive and negative electrodes spirally wound together via a separator, a negative-electrode lead electrically connected to and partly covering the negative electrode, and a protective tape partly covering the negative-electrode lead and being wider than the negative-electrode lead. An outermost turn of the electrode body constitutes the positive electrode. The negative electrode is wound more than two turns in the electrode body. The negative-electrode lead is disposed neither on an innermost turn nor an outermost turn of the negative electrode. Straight lines A, B, and C are defied on a cross-section of the electrode body perpendicular to a center-axis thereof. The straight line A passes through the center axis and a center of the protective tape. The second straight line is parallel with the straight line A and passes through one end of the protective tape. The straight line C is parallel with the first straight line and passes through another end of the protective tape. An end of an outermost turn of the positive electrode is located in a region of the cross section provided between the straight lines B and C. A designed energy density of the cell is 850 Wh/L or more.

Cylindrical Battery with an Insulation Assembly

Resumen de: US2025350006A1

A cylindrical battery with an insulation assembly, the cylindrical battery includes an outer housing; a rolled core accommodated in the outer housing; and an insulation assembly. The insulation assembly is positioned between the outer housing and the rolled core, and is configured to separate a portion of the rolled core from the outer housing.

Pad, Battery Module Including the Same, and Battery Pack

Nº publicación: US2025349960A1 13/11/2025

Solicitante:

SK ON CO LTD [KR]
SK On Co., Ltd

Resumen de: US2025349960A1

The present disclosure relates to a pad, a battery module including the pad, and a battery pack according to embodiments of the present disclosure. The pad according to an embodiment may include a surface pressure layer having a shape of a sheet, a first barrier layer and a second barrier layer respectively stacked on both surfaces of the surface pressure layer in a predetermined stacking direction, and a reinforcement layer arranged in the predetermined stacking direction.