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PACKAGING DEVICE AND PACKAGING METHOD

Resumen de: WO2025251429A1

The present application relates to a packaging device and a packaging method. The packaging device comprises: a conveying mechanism, which is used for driving a first film material to move in a prearranged direction; a first film-laying mechanism, which is arranged on a moving path of the first film material and is used for forming on the first film material a plurality of accommodating positions that are arranged at intervals in the prearranged direction; and a second film-laying mechanism, which is used for laying a second film material onto an electrode assembly at each of the accommodating positions. In the present application, during the movement of the first film material, the first film-laying mechanism successively forms on the first film material in the prearranged direction the plurality of accommodating positions that are arranged at intervals, and then the second film-laying mechanism lays the second film material onto the electrode assembly at each of the accommodating positions, so that the first film material and the second film material jointly coat the electrode assembly. Thus, during the constant-speed movement of the first film material, the first film-laying mechanism can synchronously implement continuous shell punching and form the plurality of accommodating positions, thereby allowing for continuous production in electrode assembly packaging processes and improving production efficiency.

ELECTRODE SHEET AND PREPARATION METHOD THEREFOR, AND LITHIUM-ION BATTERY

Resumen de: WO2025251427A1

An electrode sheet and a preparation method therefor, and a lithium-ion battery. The electrode sheet comprises a first electrode sheet, which comprises a first current collector and a first active material coating layer coated on one surface of the first current collector, wherein the first active material coating layer comprises a first active substance, a first binder and a first conductive agent. The mass content of the first conductive agent is D1, the mass content of the first binder is P1, and the total mass of the first active material coating layer is CW1; the electrode efficiency of the first electrode sheet is Q1; and Q1, CW1, D1 and P1 satisfy the relational expression: Q1=CW1*(1-D1-P1), and 1≤P1/D1≤8. By reducing the content of a conductive agent, the source of lithium ions is limited, thereby reducing the precipitation ability of lithium ions. Moreover, the content of a binder is increased so as to improve the bonding capability between an electrode sheet and a separator, which reduces lithium precipitation of the electrode sheet. In addition, the warping phenomenon of a single-sided sheet is reduced by controlling the mass of the active material coating.

ROLLER-PRESSING PRESSURE CONTROL METHOD, APPARATUS AND SYSTEM

Resumen de: WO2025251426A1

A roller-pressing pressure control method, apparatus and system. The method comprises: when an edge region of a cathode sheet is located at a roller-pressing position point, which is on an anode strip and is for an upper roller, reducing the roller-pressing pressure of the upper roller for the anode strip, such that the roller-pressing pressure of the upper roller for the anode strip is less than an initial pressure value; and when a non-edge region of the cathode sheet is located at the roller-pressing position point, which is on the anode strip and is for the upper roller, maintaining the roller-pressing pressure of the upper roller for the anode strip at the initial pressure value, wherein the non-edge region of the cathode sheet is the region of the cathode sheet other than the edge region.

BATTERY PACK CASE, BATTERY PACK, AND VEHICLE INCLUDING THE SAME

Resumen de: US2025379328A1

A battery pack case of the present disclosure includes a base plate forming a surface of the battery pack case and having a through-hole formed to communicate an internal space of the battery pack case with an outside, an external plate spaced apart from an outer surface of the base plate and configured to block the through-hole from being exposed to the outside and to define a separation space between the base plate and the external plate, and a venting valve provided on the external plate to selectively discharge a fluid from the separation space.

BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME

Resumen de: US2025379330A1

Discussed is a battery pack including a battery cell stack having a plurality of battery cells stacked in a first direction, a barrier layer disposed on the battery cell stack, the barrier layer having an inner surface facing the battery cell stack, a first refractory part positioned on an outer surface of the barrier layer that is opposite to the inner surface of the barrier layer, and a venting part that extends through the first refractory part. The barrier layer is configured to be fractured or melted from pressure or heat generated in the battery cell stack to open the venting part to allow at least one of heat, gas and flames to pass from the battery cell stack through the venting part. The first refractory part is at the barrier layer.

Battery Pack and Battery Module

Resumen de: US2025379327A1

The present disclosure provides a battery pack, etc. that can ensure excellent safety when a thermal event occurs. A battery pack according to one aspect of the present disclosure may include a plurality of battery cells each having an electrode lead; a cell cover configured to at least partially surround at least some of the plurality of battery cells; and a busbar frame assembly configured to be electrically connected to the electrode lead and coupled to at least one side of a cell cover, thereby blocking flame discharge in a particular direction.

VENTING COVER FOR BATTERY MODULE, BATTERY PACK, AND VEHICLE INCLUDING THE SAME

Resumen de: US2025379325A1

A venting cover for a battery module, the venting cover configured to be coupled to one side surface of the battery module and cover the battery module. The venting cover includes venting channels. Each venting channel includes a channel shape extending in a longitudinal direction, an inflow hole configured to be directed toward a battery cell embedded in the battery module, a discharge hole located at an end of the each venting channel, each venting channel being configured such that a venting material vented from the battery cell is introduced into the inflow holes, flows in the longitudinal direction, and is discharged through the discharge holes, and a support channel located between adjacent venting channels of the plurality of venting channels, each support channel extending in the longitudinal direction, and having a closed cross-section, each support channel being configured to support the venting channels.

THERMAL SUPPRESSION CONTAINER DESIGNS FOR MANAGING THERMAL ENERGY WITHIN TRACTION BATTERY PACKS

Resumen de: US2025379326A1

Thermal suppression containers are provided for use within traction battery packs. An exemplary thermal suppression container may include an outer pouch and a thermal suppression agent releasably contained within the outer pouch. The thermal suppression container may be configured to release the thermal suppression agent when a temperature near the outer pouch exceeds a predefined temperature threshold. The thermal suppression agent may capture or trap particles associated with battery vent byproducts, thereby managing or even preventing the transfer of thermal energy to nearby structures. The outer pouch of the thermal suppression container may include one or more flag seals that are configured to position the thermal suppression container relative to surrounding structures.

BALANCING OF ELECTRICAL ENERGY STORAGE STATES USING REINFORCEMENT LEARNING

Resumen de: US2025379275A1

A computer system has processing circuitry to: acquire cell data from cell sensors of an electrical energy storage pack of an electrical energy storage system of a vehicle, determine at least two states of the cells based on evaluating the cell data; input the at least two states as input to a reinforcement learning algorithm configured to calculate control signals to balance the at least two states across the cells, and provide an output indicating the control signals.

PRESSURE RELIEF VALVE AND BATTERY PACK

Resumen de: US2025379273A1

Provided are a pressure relief valve and a battery pack. A pressure relief valve includes a valve body. The valve body is provided with a pressure relief hole penetrating through the valve body along a length direction of the valve body. At least one whistle hole is disposed at a side wall of the valve body. Each of the at least one whistle hole extends from an outer side surface of the valve body to an inner side surface of the valve body, to form an opening communicated with the pressure relief hole at the inner side surface. The whistle hole is configured to generate a sound when a portion of gas in the pressure relief hole is discharged through the whistle hole.

MIXTURE AND BATTERY

Resumen de: US2025379251A1

A main object of the present disclosure is to provide a mixture with which an electrode layer and an electrolyte layer with excellent ion conductivity are obtained. The present disclosure achieves the object by providing a mixture including a first solid electrolyte and a second solid electrolyte, wherein the first solid electrolyte and the second solid electrolyte contain Li, P, and S, and have an argyrodite type crystal structure; the first solid electrolyte includes an anion component including B; and the second solid electrolyte does not include an anion component including B.

ELECTROLYTE AND ELECTROCHEMICAL DEVICE

Resumen de: US2025379252A1

An electrolyte including a compound of Formula I-A and a compound of Formula I-B:where based on a mass of the electrolyte,a percentage of the compound of Formula I-A and a percentage of the compound of Formula I-B are each in a range of 0.12% to 5.1%.

METHOD OF MANUFACTURING ALL-SOLID-STATE BATTERY

Resumen de: US2025379250A1

Disclosed is a method of manufacturing an all-solid-state battery, the method including a mixture formation step of mixing positive electrode active material powder coated with a lubricating material and electrolyte powder with each other to form a mixture, an application step of applying the mixture to a positive electrode current collector, and a pressing step of pressing the mixture and the positive electrode current collector. Pores in a positive electrode composite layer formed in the pressing step may be reduced, whereby the performance of the all-solid-state battery may be improved.

ELECTRODE ASSEMBLY AND BATTERY CELL HAVING THE SAME

Resumen de: US2025379248A1

An embodiment of the present disclosure can provide an electrode assembly, comprising: a first electrode wound about a winding axis and comprising a first uncoated portion a second electrode wound about the winding axis and comprising a second uncoated portion, and a separator disposed between the first electrode and the second electrode; wherein the first uncoated portion comprises a plurality of cutting portions, formed at a predetermined depth from an end of the first electrode, and a plurality of cross-cutting portions, extending from the cutting portions and formed in a winding direction.

APPARATUS AND METHOD FOR PRESSURIZING BATTERY

Resumen de: US2025379249A1

An apparatus for pressurizing a battery includes: a plurality of pressurization plates configured to pressurize a plurality of battery cells interposed between the pressurization plates; a buffering pad interposed between one of the pressurization plates and one of the battery cells, the buffering pad comprising foamed silicon; and a pressure adjustment part configured to adjust pressure between the pressurization plates by adjusting a distance between the pressurization plates.

BATTERY CELL, ELECTRODE ASSEMBLY, BATTERY AND ELECTRICAL APPARATUS

Resumen de: WO2025251278A1

The present application relates to a battery cell, an electrode assembly, a battery and an electrical apparatus. The battery cell comprises a casing, an electrode assembly and an end cover assembly; the electrode assembly comprises a first electrode sheet and a second electrode sheet which have opposite polarities, and a separator; the first electrode sheet, the second electrode sheet and the separator are wound in a winding direction to form a winding structure, the winding structure comprising a straight region and a bent region; the first electrode sheet comprises a first current collector and a first active material layer which are connected to each other, the first current collector comprising a base portion and a thickened portion; the thickened portion is located within the bent region and extends toward the straight region for a predetermined length, and the base portion is located within the straight region and connected to the thickened portion, the thickened portion having a thickness greater than the thickness of the base portion and being arranged protruding from the base portion, and the first active material layer covering the base portion and the thickened portion. In the electrode assembly, the battery cell, the battery and the electrical apparatus provided in the present application, the electrode assembly can reduce the risk of short-circuit in the battery cell, thereby ensuring the overall reliability of the battery cell.

BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025251336A1

A battery (100) and an electric device. The battery (100) comprises a plurality of battery cells (10) and a busbar member (20); the busbar member (20) comprises a first connection portion (21), a second connection portion (22) and a plurality of buffer portions (23); the plurality of buffer portions (23) are at least partially spaced apart in a first direction and are located between the first connection portion (21) and the second connection portion (22) in a second direction; the first connection portion (21) and the second connection portion (22) are respectively connected to different battery cells (10); the second direction is parallel to the arrangement direction of the plurality of battery cells (10); the first direction intersects the second direction. The buffer portions (23) can be stretched or compressed under the action of a pulling force, to absorb part of the external force and achieve a stress relief function, reducing the risks of structural failure or cracking in the busbar member (20) and the battery cells (10), enhancing the operational reliability of the battery (100).

SULFAMYL FLUORIDE COMPOSITIONS AND PROCESSES FOR MAKING SULFAMYL FLUORIDE COMPOSITIONS

Resumen de: US2025376375A1

A process for producing a sulfamyl fluoride composition includes providing a solution comprising fluorosulfonic acid, urea and a solvent; reacting the solution at a reaction temperature from 80° C. to about 170° C. to produce a mixture including sulfamyl fluoride, bis(fluorosulfonyl) imide, ammonium fluorosulfate and the solvent; separating the ammonium fluorosulfate from the mixture; and separating the mixture into a sulfamyl fluoride composition and a recycle composition, the sulfamyl fluoride composition including a higher concentration of sulfamyl fluoride and bis(fluorosulfonyl) imide than the recycle composition. A mole ratio of the fluorosulfonic acid to the urea in the solution is from about 1.80:1 to about 2.00:1.

METHOD FOR PRODUCING LITHIUM HYDROXIDE, METHOD FOR PRODUCING LITHIUM- CONTAINING SULFIDE SOLID ELECTROLYTE RAW MATERIAL, AND METHOD FOR PRODUCING SULFIDE SOLID ELECTROLYTE

Resumen de: US2025376374A1

A method for producing lithium hydroxide includes: reacting lithium carbonate with calcium hydroxide in a liquid to obtain a solution containing lithium hydroxide; subjecting the solution to solid-liquid separation into a liquid component containing the lithium hydroxide and a solid component comprising lithium derived from the lithium carbonate; and recovering the lithium hydroxide from the liquid component.

BATTERY, ELECTRICAL DEVICE, AND ENERGY STORAGE DEVICE

Resumen de: US2025379324A1

A battery, an electrical device, and an energy storage device. The battery includes: a battery cell, a first wall of the battery cell being provided with a pressure relief mechanism; an attachment component, a first surface of the attachment component being attached to the first wall by an adhesive; an isolation component connected to the attachment component and configured to prevent the adhesive from being applied between the attachment component and the pressure relief mechanism; and a protective component connected to a surface of the isolation component facing away from the pressure relief mechanism to protect the isolation component; where the attachment component is provided with a first through hole corresponding to the position of the pressure relief mechanism.

PRISMATIC POWER STORAGE DEVICE

Resumen de: US2025379321A1

A prismatic power storage device includes a case having a case body and a rectangular plate-shaped lid, an electrode body housed in the case, a positive terminal member extending out through a positive-electrode insert hole provided in the lid, and a negative terminal member extending out through a negative-electrode insert hole. The lid includes a first safety valve provided in a center of the lid and to be opened at a first operating pressure, a second safety valve provided on one side relative to a central region and to be operated at a second operating pressure higher than the first operating pressure, and a third safety valve provided on the other side relative to the central region and to be operated at a third operating pressure higher than the first operating pressure.

COVER ASSEMBLY FOR BATTERY MODULE, BATTERY PACK, AND VEHICLE INCLUDING THE SAME

Resumen de: US2025379323A1

A cover assembly for a battery module including a cover frame configured to be coupled to one opened side of a battery module casing and to close the opened side of the battery module casing, the cover frame including a plurality of hollow portions extending in a longitudinal direction, and a plurality of venting holes at locations that overlap the plurality of hollow portions, the plurality of venting holes being configured to penetrate the cover frame in a direction toward an inside of the battery module casing, and at least one venting part inserted into a first hollow portion and configured to close a respective venting hole of the plurality of venting holes, each at least one venting part having a portion that corresponds to the respective venting hole, each at least one venting part being configured to be opened when gas or flame is generated in the battery module.

POWER STORAGE DEVICE

Resumen de: US2025379322A1

A power storage device includes a metal case with a safety valve part. The safety valve part includes a hole surrounding edge portion that forms a valve hole penetrating through the case and a valve member hermetically sealing this valve hole. The valve member includes a plate circumferential edge portion and a ring-shaped resin valve member that is made of thermoplastic resin and hermetically seals a space between the plate circumferential edge portion of the metal seal plate and the hole surrounding edge portion of the case. The safety valve part is a first safety valve part of a temperature opening type to be opened by softening or melting of the resin valve member by heat.

Battery Module, and Battery Pack and Vehicle Including the Same

Resumen de: US2025379320A1

Provided are a battery module, and a battery pack and a vehicle including the same. The battery module includes a plurality of pouch-type battery cells, a module case in which the plurality of pouch-type battery cells are accommodated and a venting hole is formed, and a cell cover at least partially surrounding and supporting at least some of the plurality of pouch-type battery cells, in an inner space of the module case, wherein at least a portion of the cell cover is inserted into the venting hole.

THERMAL MANAGEMENT SYSTEM FOR A FUEL CELL ELECTRIC VEHICLE AND A METHOD FOR CONTROLLING SAME

Nº publicación: US2025379244A1 11/12/2025

Solicitante:

HYUNDAI MOTOR COMPANY [KR]
KIA CORP [KR]
HYUNDAI MOTOR COMPANY,
KIA CORPORATION

Resumen de: US2025379244A1

A thermal management control apparatus for a fuel cell electric vehicle includes: a stack cooling line configured to cool a fuel cell stack of the fuel cell electric vehicle; a battery cooling line configured to cool a battery of the fuel cell electric vehicle; a valve configured to control an inflow of the stack coolant; and a control apparatus configured to diagnose whether a component of the valve or the battery cooling line has failed based on the battery having overheated, and configured to cool the battery based on a failure of the valve or a component failure of the battery cooling line having occurred.