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SECONDARY BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025195043A1

The present application belongs to the technical field of batteries, and particularly relates to a secondary battery and an electric device. The secondary battery comprises a negative electrode sheet and an electrolyte. The negative electrode sheet comprises a negative electrode active material. The negative electrode active material comprises a graphitized carbon material, and the negative electrode active material satisfies the following conditions: (1.1) the specific surface area of the negative electrode active material is 0.5 m2/g-3.0 m2/g; and (1.2) the volume distribution particle size Dv1 of the negative electrode active material is greater than or equal to 1.5 μm. The electrolyte includes a carboxylic ester solvent and a film-forming stabilizer. The design mode of the present application is beneficial for improving the battery performance.

LIQUID COOLING PLATE, BATTERY PACK AND ELECTRICAL DEVICE

Resumen de: WO2025195046A1

A liquid cooling plate, a battery pack and an electrical device. The liquid cooling plate comprises a flat plate, a flow channel plate and a flow channel tension plate, wherein the flow channel plate is arranged between the flat plate and the flow channel tension plate, the flow channel tension plate is fixed on an upper side of the flow channel plate in a fitting manner, or the flow channel tension plate is connected to the upper side of the flow channel plate, and an upper flow channel is enclosed by means of the flow channel tension plate and the flow channel plate; and the flat plate is connected to a lower side of the flow channel plate, and a lower flow channel is enclosed by means of the flat plate and the flow channel plate.

SECONDARY BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025195044A1

The present application provides a secondary battery and an electric device. The secondary battery comprises a positive electrode sheet, a negative electrode sheet, and an electrolyte. The positive electrode sheet contains lithium-containing transition metal phosphate; and the lithium-containing transition metal phosphate contains submicron-sized particles and micron-sized particles. In addition, the electrolyte in the secondary battery contains a lithium salt and a film-forming stabilizer; and the lithium salt comprises a first lithium salt and a second lithium salt, wherein the first lithium salt contains lithium hexafluorophosphate, and the second lithium salt contains one or both of lithium bis(fluorosulfonyl)imide and lithium bis(trifluoromethylsulfonyl)imide. The secondary battery designed in the present application is advantageous in taking into account the energy density, the rate performance and the cycle performance of the battery.

ROLLER PRESSING SYSTEM AND ELECTRODE SHEET PREPARATION APPARATUS

Resumen de: WO2025195012A1

A roller pressing system and an electrode sheet preparation apparatus. The roller pressing system (100) comprises a support roller (1) and a plurality of work rollers (2), wherein the support roller (1) comprises a first support roller (11), and the first support roller (11) and the work rollers (2) are rotatably arranged; a roller pressing gap (20) is formed between the peripheral walls of any two work rollers (2) adjacent to each other in a first direction; the peripheral wall of the first work roller (21) and the peripheral wall of the first support roller (11) abut against each other in the first direction, or have a first spacing gap (110) therebetween; the first work roller (21) is the work roller (2) among the plurality of work rollers (2) close to the first support roller (11); and the radius of each work roller (2) is less than the radius of the support roller (1). By means of the roller pressing system, a coating layer formed by means of roller pressing has a uniform thickness and relatively good consistency.

SECONDARY BATTERY AND ELECTRONIC APPARATUS

Resumen de: WO2025194495A1

A secondary battery and an electronic apparatus. Specifically, the secondary battery comprises a positive electrode, a negative electrode, and an electrolyte. The positive electrode comprises: lithium cobalt oxide, a binder, and an inorganic additive. The electrolyte comprises: lithium difluorophosphate, a sulfur-oxygen double bond-containing compound and 1,2,3-tris(2-cyanoethoxy)propane. The present invention can not only improve penetration resistance and warping suppression of a positive electrode, but can also improve the service life and low-temperature direct-current resistance characteristics of a high-potential area of a secondary battery.

SECONDARY BATTERY AND ELECTRONIC DEVICE

Resumen de: WO2025194501A1

The present application discloses a secondary battery and an electronic device. The secondary battery comprises an electrode assembly, the electrode assembly comprises a first electrode sheet, a separator, and a second electrode sheet which are stacked and wound, and the first electrode sheet comprises a first current collector and a first active material layer. A first groove exposing the first current collector is formed in the first active material layer, and a first tab is welded in the first groove and extends out of the electrode assembly in a first direction. The electrode assembly further comprises a first insulating layer and a second insulating layer; the first insulating layer is bonded to the first active material layer and covers the first tab; the separator comprises a first separator layer arranged adjacent to the first insulating layer in a second direction perpendicular to the first direction; the second electrode sheet comprises a first electrode sheet layer arranged adjacent to the first separator layer in the second direction; the second insulating layer is arranged between the first separator layer and the first electrode sheet layer, and is bonded to the first separator layer and the first electrode sheet layer; and the second insulating layer overlaps the first insulating layer in the second direction.

ELECTROLYTES FOR LITHIUM-SULFUR CELLS

Resumen de: WO2025194211A1

Provided are cells, such as lithium-sulfur cells, comprising a quasi-solid state liquid electrolyte, wherein the electrolyte comprises a room temperature ionic liquid and an Li salt, and certain concentration subsets of FSI- anions, wherein the electrolyte has ultralow or negligible solvating power for one or more intermediate polysulfide species (Li2Sn, 4 ≤ n ≤ 8).

ELECTROLYTES FOR LITHIUM-SULFUR CELLS

Resumen de: WO2025194212A1

Provided are cells, such as lithium-sulfur cells, comprising a quasi-solid state liquid electrolyte, wherein the electrolyte comprises a room temperature ionic liquid and an Li salt, and certain concentration subsets of FSI- anions, wherein the electrolyte has ultralow or negligible solvating power for one or more intermediate polysulfide species (Li2Sn, 4 ≤ n ≤ 8).

Swappable battery pack for refrigerated container

Resumen de: US2025300292A1

A swappable battery pack configured to power a refrigeration unit of a refrigerated vehicle or cargo container which offers a flexible and efficient solution for electrical power of refrigeration units of cooling containers or vehicles transporting temperature-sensitive cargo. By equipping such a container with a swappable battery pack, preferably further having a temperature control software component, remote management capabilities, and predictive algorithms, a refrigeration system can ensure optimal cooling performance, operational flexibility, and cargo preservation during transportation.

SYSTEM AND METHOD FOR SIMULTANEOUS CHARGING OF A PLURALITY OF BATTERIES

Resumen de: WO2025198944A1

The various embodiments herein provide a system and method for enabling simultaneous charging of multiple batteries. The embodiments also provide a system and method generating a magnetic field through a conductive strip placed around a plurality of battery banks to enable efficient and simultaneous charging of multiple batteries. The embodiments optimize the method in which battery banks are charged, rejuvenated and recycled. By utilizing a conductive strip to create a magnetic field, the system magnetically pulse charges batteries simultaneously, reducing temperature rise and enhancing overall efficiency. The system enables noninvasive battery recycling and optimized restoration, extending battery life and supporting environmental sustainability. Key benefits include faster charging times, reduced thermal risks and the ability to rejuvenate batteries previously considered at the end of their lifecycle.

METHOD FOR LITHIUM BATTERY RECYCLING

Resumen de: WO2025198659A1

This disclosure provides methods for recycling material from lithium iron phosphate batteries. One aspect of this disclosure is a method for recycling lithium iron phosphate battery material. The method comprises a contacting a battery black mass from a lithium iron phosphate battery material and a spodumene composition in a weight ratio of battery black mass to spodumene composition of about 1: 1 to 1 :20, to form a black mass mixture; and b) leaching the black mass mixture with an aqueous medium by: adjusting a pH of the black mass mixture between 2.5 and 3.0; and adding hydrogen peroxide as an oxidizer.

LITHIUM SECONDARY BATTERY HAVING IMPROVED SAFETY

Resumen de: WO2025198437A1

The present invention relates to an electrolyte composition for a lithium secondary battery. The electrolyte composition for a lithium secondary battery comprises a cyclic ester-based solvent as a main component and a predetermined electrolyte additive, and thus enables the uniform formation of a solid electrolyte interface layer (SEI layer) having high lithium ion conductivity and excellent heat resistance on the surface of an anode when a lithium secondary battery is activated. Consequently, the reactivity between an anode active material and the electrolyte composition is remarkably lowered, resulting in a rise in the temperature at which heat generation begins (that is, an exothermic onset temperature) between the anode active material and the electrolyte composition, thereby suppressing heat generation caused by anode deterioration or the like. Furthermore, a lithium secondary battery comprising the electrolyte composition can minimize side reactions of the electrolyte composition, occurring on the surface of the anode when exposed to high temperatures, thereby exhibiting excellent high-temperature safety.

A PORTABLE ENERGY STORAGE DEVICE

Resumen de: WO2025198515A1

The present invention discloses a portable energy storage device The device consists of a series of power cells (102) securely held in position by cell holders (104) with extensions (106) and apertures (108), forming a power cell stack (112). A thermal conductive plate (114) facilitates the distribution and dissipation of thermal energy, while a thermal barrier (116) provides insulation against temperature fluctuations. Mechanical protection and structural integrity are ensured by end covers (120) with extensions (122) and apertures (124). An electronic control unit (130) manages and monitors the power cells, positioned on top of the stack and enclosed by a top cover (136). A bottom cover (152) houses a charging/discharging unit (146), and casing (156) provides additional protection and structural support. This invention overcomes the limitations of prior art by offering improved thermal management, enhanced structural integrity, and efficient power cell control.

MONITORING AND STORING BATTERY AND VEHICLE-RELATED PARAMETERS IN A SWAPPABLE BATTERY PACK

Resumen de: WO2025198516A1

Embodiments herein disclose systems and methods for monitoring and storing battery and vehicle-related parameters in a swappable battery pack, wherein the swappable battery pack can be used in vehicles.

POSITIVE ELECTRODE SHEET AND BATTERY

Resumen de: WO2025195131A1

The present disclosure relates to the field of batteries, and in particular to a positive electrode sheet and a battery. The positive electrode sheet comprises a first positive electrode active material containing single crystal particles and a second positive electrode active material containing polycrystalline particles; the first positive electrode active material comprises elements A1 and A'1, the second positive electrode active material comprises elements A2 and A'2, and the content m2 of the element A'1 is less than or equal to the content m4 of the element A'2. The positive electrode sheet of the present disclosure has high compacted density and good electrochemical performance. The battery of the present disclosure has high energy density, good cycle performance and low internal resistance.

DRY-METHOD ELECTRODE FILM AND PREPARATION METHOD THEREFOR, ELECTRODE AND BATTERY

Resumen de: WO2025195536A1

The present application belongs to the technical field of batteries. Disclosed are a dry-method electrode film and a preparation method therefor, an electrode and a battery. The method of the present application comprises: mixing polytetrafluoroethylene, an active substance and an electrically conductive agent, and crushing same, so as to obtain a crushed mixture; subjecting the crushed mixture to primary airflow grinding and shearing, so as obtain a ground and sheared mixture, wherein conditions of the primary shearing comprise: the airflow temperature is -10 to 10°C, the airflow pressure is 0.7-0.9 MPa, and the rotation speed is 8000-12000 rpm; subjecting the ground and sheared mixture to secondary airflow grinding, shearing and fibration, so as to obtain a fibration material; and subjecting the fibration material to a secondary fibration treatment, so as to obtain a dry-method electrode film. The method of the present application can significantly improve the tensile strength of an electrode film, improve the liquid absorption rate of an electrode and reduce the resistivity of the electrode.

BATTERY PACK AND ELECTRICAL DEVICE

Resumen de: WO2025195413A1

Disclosed herein are a battery pack and an electrical device, relating to the technical field of batteries. The battery pack comprises: a plurality of batteries, each battery comprising an explosion-proof valve; a wire harness isolation plate, the wire harness isolation plate being provided with first exhaust holes; a buffer plate, the buffer plate being disposed on the side of the wire harness isolation plate away from the batteries, an exhaust space being formed between the wire harness isolation plate and the buffer plate, the first exhaust holes being in communication with the exhaust space, and the first exhaust holes being configured to guide gases discharged from the explosion-proof valves into the exhaust space; and a bottom plate, the bottom plate being disposed on the side of the buffer plate away from the wire harness isolation plate; wherein the buffer plate is provided with a plurality of flow guide portions extending in a first direction, and the flow guide portions protrude in a third direction towards the side away from the wire harness isolation plate.

RECORDING MEDIUM AND INFORMATION PROCESSING DEVICE THAT EXECUTE GAMING BASED ON POSITION INFORMATION IN REAL WORLD

Resumen de: US2025295999A1

A non-transitory computer readable recording medium stores instructions that execute gaming based on position information of players in a real world, the instructions causing a computer to execute: acquiring a current position of each of the players in the real world; and executing a match game with an enemy object in an appearance time of the enemy object in which any of the players can commonly match the enemy object, on condition that the current position has reached a match allowable range with the enemy object. The executing the match game includes expanding the match allowable range upon determining that a number of times of execution of the match game is less than a predetermined number of times at a predetermined time point.

BATTERY PACK

Resumen de: US2025295945A1

A battery pack includes a housing, a plurality of battery cells in the housing and each having a vent hole, a chamber between the housing and the vent hole, a separation member in the chamber and configured to divide the chamber into a plurality of unit chambers, and a plurality of fire-extinguishing members each located in a unit chamber of the plurality of unit chambers and configured to supply a fire-extinguishing material to the battery cells.

Pouch Forming Device and Method

Resumen de: US2025296135A1

A pouch forming method may include: a disposing operation of disposing a pouch sheet between a die portion including a forming lower surface on which a pouch sheet is formed and a forming support portion disposed on the forming lower surface and a punch portion for forming the pouch sheet; a first forming operation of evacuating an internal space of the die portion and lowering the forming support portion in a direction of the forming lower surface to bend the pouch sheet; and a second forming operation of lowering the punch portion in a direction of the forming lower surface to press the pouch sheet.

METHOD OF TREATING BATTERY-DERIVED MIXTURE AND METHOD OF TREATING BATTERY

Resumen de: US2025296131A1

Provided is a method of treating a battery-derived mixture, which is a mixture containing a positive electrode material of a battery containing any one or more of nickel, cobalt, and manganese, and an organic substance, the method including: placing the battery-derived mixture in a treatment environment adjusted to a predetermined temperature and predetermined humidity; supplying reactive oxygen species to the treatment environment, thereby causing the reactive oxygen species to react with water present in the treatment environment to generate a hydroxyl radical; and decomposing the organic substance by the generated hydroxyl radical.

APPARATUS FOR MIXING AND AGITATING SECONDARY BATTERY ELECTRODE MATERIALS AND CONTROL METHOD THEREOF

Resumen de: US2025296061A1

An apparatus for mixing and agitating secondary battery electrode materials includes: a vessel configured to accommodate secondary battery electrode material; an agitator configured to rotate and elevate to agitate the material in the vessel; a rotation controller configured to control the rotation of the agitator; and an elevation controller configured to control the elevation of the agitator.

COOLING STRUCTURE OF BATTERY PACK

Resumen de: WO2025198248A1

A cooling structure of a battery pack that is disclosed comprises: a heat sink comprising a plurality of cooling flow paths; a plurality of battery assemblies longitudinally and/or transversely mounted on top of the heat sink; and a plurality of electrical components mounted on the front surface and/or the rear surface of the heat sink, wherein at least one of the plurality of electrical components has an insulating oil sealed therein, and heat accumulated in the insulating oil is discharged to the outside through the cooling flow paths of the heat sink.

BATTERY PACK

Resumen de: WO2025198343A1

The present invention relates to a battery pack for accommodating cell assemblies that include a pair of external terminals, the battery pack comprising a pack case on which the cell assemblies are seated, wherein the pack case includes: a base plate supporting the bottom of the plurality of cell assemblies; and a protective cap coupled to the central portion of the base plate, the protective cap covering an external terminal of each accommodated cell assembly.

BATTERY PACK

Nº publicación: WO2025198342A1 25/09/2025

Solicitante:

LG ENERGY SOLUTION LTD [KR]
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