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POUCH CELL FOR SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF

Resumen de: EP4708557A1

A pouch cell manufacturing method of the present disclosure prevents the sealing quality of a pouch from being deteriorated by an electrolyte solution, by reducing the amount of the electrolyte solution staining the sealing portion of the pouch, and a pouch cell in which gas inside the pouch can be efficiently discharged to the outside of the pouch is provided. The pouch cell of the present disclosure includes: an electrode assembly; a pouch within which the electrode assembly is accommodated; and a gas discharge pipe that is disposed such that the gas discharge pipe extends from the inside of the pouch to the outside, in which gas inside the pouch can be transmitted through the gas discharge pipe and discharged to the outside of the pouch.

PREPARATION METHOD OF MANGANESE IRON PHOSPHATE PRECURSOR, CATHODE SHEET, AND LITHIUM BATTERY

Resumen de: EP4707234A1

A preparation method of a manganese iron phosphate precursor, a cathode sheet, and a lithium battery comprising: preparing the precursor based on a high-temperature calcination device. The high-temperature roasting furnace comprises a sprayer, a heater, and a particle size regulator. The method comprises: generating a manganese-containing solution from a manganese source and hydrochloric acid; generating an iron phosphate solution from an iron source, a phosphorus source, and hydrochloric acid; mixing the manganese-containing solution, iron phosphate solution, and dispersant to obtain a mixed solution; preheating the mixed solution; and transporting the mixed solution to the high-temperature roasting furnace; spraying and roasting the mixed solution in the high-temperature calcination furnace in the atmosphere of carrier gas, forming a powdered manganese iron phosphate precursor with at least two preset particle sizes; water washing and grinding, demagnetizing, and drying the manganese iron phosphate precursor to obtain the manganese iron phosphate precursor.

BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Resumen de: EP4708548A1

The present application provides a battery cell, a battery, and a power consuming apparatus, and belongs to the field of battery technologies. The battery cell includes a shell, an electrode assembly, a first terminal post, and a second terminal post. The shell has a circular wall portion. The electrode assembly is accommodated in the shell. The first terminal post and the second terminal post have opposite polarities. The first terminal post and the second terminal post are spaced apart on the wall portion and are both electrically connected to the electrode assembly. A minimum distance between the first terminal post and a central axis of the wall portion is greater than a minimum distance between the second terminal post and the central axis of the wall portion in a radial direction of the wall portion. The battery cell implements a structure in which the first terminal post surrounds the exterior of the second terminal post in an arc extension direction, so as to facilitate distinguishing and avoid errors in a formation process of the battery cell. The battery cell does not need to be secondarily positioned but a positive probe and a negative probe of a formation device are configured into an annular structure in which an outer ring surrounds an inner ring, thereby facilitating optimization of a cycle time of the battery cell.

BATTERY MODULE SYSTEMS, ASSEMBLIES, AND METHODS OF MANUFACTURE

Resumen de: US20260048671A1

A battery system for powering an electric vehicle can comprise a plurality of battery modules, each of the plurality of battery modules comprising a housing and a plurality of cells disposed within the housing. A plumbing arrangement include a straight tube disposed between adjacent modules in the plurality of modules. An anchor arrangement for each of the plurality of battery modules can facilitate various mounting configurations for each respective battery module. An exhaust system for the battery system can be reconfigurable with a 1:1 vent tube to module ratio. Custom adapters can be configured for mounting airframer exhaust systems to each of the plurality of battery modules.

SECONDARY BATTERY MANUFACTURING SYSTEM

Resumen de: EP4708369A1

Provided is a secondary battery manufacturing system according to example embodiments of the present technology. The system includes a first controller configured to collect coordinate data, and a measuring device configured to collect measurement data of an electrode sheet, in which the measuring device is configured to relate the coordinate data with the measurement data to generate coordinate-related inspection data.

POUCH MANUFACTURING METHOD AND POUCH MANUFACTURING APPARATUS

Resumen de: EP4706940A1

The present disclosure relates to a pouch manufacturing method and a pouch manufacturing device, and the pouch manufacturing method according to the present disclosure includes a seating process of seating a pouch sheet on a seating jig; a support process of pressing and supporting the pouch sheet through a support jig located on the opposite side with the pouch sheet interposed therebetween with respect to the seating jig; and a folding process of securing the pouch sheet through the seating jig and the support jig in the support process, and then moving a plurality of folding jigs and folding the pouch sheet seated on the seating jig to form a receiving portion in which the electrode assembly is accommodated.

LITHIUM SILICON OXIDE, ANODE COMPRISING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING ANODE

Resumen de: EP4708397A1

The present invention relates to: a lithium silicon oxide in which gas generation is suppressed during application to an aqueous slurry; an anode comprising same; and a lithium secondary battery comprising the anode, and provides a lithium silicon oxide satisfying equation 1, an anode comprising same, and a lithium secondary battery comprising the anode.

SYSTEMS AND METHODS FOR IMPROVING ENERGY DEVICE PERFORMANCE

Resumen de: TW202512562A

Provided herein are devices, systems, and methods for improving performance and lifetime of energy devices. In some embodiments, the present disclosure provides an acoustic module for improving energy device performance, the acoustic module comprising: at least one acoustic device configured to be operably coupled to an energy device, wherein the at least one acoustic device comprises (1) an acoustic wave generator configured to generate acoustic waves and (2) a housing enclosing the acoustic wave generator, wherein the housing is configured to be attached to an external surface of the energy device in a configuration that permits the acoustic waves to be streamed into the energy device; and at least one controller configured to control the at least one acoustic device to stream the acoustic waves into the energy device.

EXPANSION FORMING PROCESS FOR MANUFACTURING A STAMPED BATTERY HOUSING

Resumen de: CN121014138A

A battery housing for an automobile includes a lower basin and an upper cover disposed on the lower basin to collectively define an interior cavity. At least one battery module is disposed in the interior cavity and encapsulated between the lower basin and the upper cover. At least one of the lower basin or the upper cover is formed as a one-piece stamped part by a two-part expansion forming process. In a preferred arrangement, both the lower basin and the upper cover of the battery case are each formed as a one-piece stamped part by a two-part expansion forming process, which provides both the upper cover and the lower basin, which are more compact than the one-piece stamped part design of the prior art. The upper cover and the lower basin have a tighter draft angle (less than 2 degrees) and sharper upper and lower corners (a plan corner radius between 20 mm and 95 mm, etc.), increasing the space for the interior cavity.

SILICON-CONTAINING LITHIUM-ION BATTERIES

Resumen de: WO2024226833A1

A lithium-ion battery cell includes an electrode assembly having an anode and a cathode. The anode includes an anode current collector and a first silicon-containing anode active material layer disposed on a first side of the anode current collector, where the first silicon-containing anode active material layer includes at least 85 atomic % silicon. The cathode includes a cathode current collector and a first cathode active material layer disposed on a first side of the cathode current collector, where the first side of the cathode current collector is proximal to the first side of the anode current collector. The battery cell further includes a lithium-ion electrolyte disposed between the anode and cathode, and a battery cell housing containing the electrode assembly and the electrolyte. During an electrochemical charging event, the first cathode active material layer is compressible to less than 95% of its thickness prior to the charging event.

HALOGENATED ETHER-CONTAINING ELECTROLYTES

Resumen de: WO2024226580A2

Provided herein are halogenated ether compounds of Formula (I), Formula (II), or Formula (III): Formula (I)Formula (II)Formula (III) Also provided are electrolytes comprising one or more compounds of Formula (I), Formula (II), or Formula (III) and electrochemical cells comprising electrolytes comprising one or more compounds of Formula (I), Formula (II), or Formula (III).

COATING FOR NEGATIVE ELECTRODE AND SOLID-STATE BATTERIES COMPRISING SAME

Resumen de: CN119731791A

A coating is disclosed comprising two elements (A and B) and a carbonaceous material, where element A is capable of alloying with lithium and element B is not capable of alloying with lithium. A method for preparing the coating and an all solid state battery (ASSB) comprising the coating are also disclosed. In one embodiment, ASSBs comprising the coating exhibit reduced charge overpotential as well as improved specific capacity and cycle life.

POSITIVE ELECTRODE ACTIVE MATERIAL, AND POSITIVE ELECTRODE AND LITHIUM SECONDARY BATTERY EACH COMPRISING SAME

Resumen de: EP4708399A1

The present invention relates to a positive electrode active material, and a positive electrode and a lithium secondary battery which include the same, and more particularly, to a positive electrode active material including a lithium composite transition metal oxide in the form of a single particle, wherein the lithium composite transition metal oxide satisfies Equation 1 described herein, and a positive electrode and a lithium secondary battery which include the same.

COVER PLATE ASSEMBLY AND BATTERY

Resumen de: EP4708479A1

The present disclosure provides a cover plate assembly and a battery. The cover plate assembly is mounted on a housing with an accommodation cavity, and comprises: a cover plate, provided with a first mounting hole in communication with the accommodation cavity; a collection component, located in the accommodation cavity and configured to obtain a parameter information inside the housing; a lower connection part, of which a first end is located in the first mounting hole and a second end is in communication connection with the collection component; and, an upper connection part, of which a first end is detachably in communication connection with the first end of the lower connection part and a second end passes through the first mounting hole.

MOLDED ARTICLE COMPRISING THERMOPLASTIC CONTINUOUS FIBER REINFORCED WOVEN COMPOSITE, AND METHOD FOR MANUFACTURING SAME

Resumen de: EP4707459A1

A molded article of the present invention comprises: a woven composite sheet formed from two or more stacked sheets of thermoplastic continuous fiber reinforced woven composites; and a nonwoven fabric heated and compressed to be stacked on at least one surface of the woven composite sheet, wherein the thermoplastic continuous fiber reinforced woven composites are woven using, as warp and weft, a glass fiber composite comprising approximately 100 parts by weight of glass fiber, approximately 35-72 parts by weight of a polypropylene resin, approximately 12-35 parts by weight of piperazine pyrophosphate, approximately 1-20 parts by weight of a phosphazene compound and approximately 1-20 parts by weight of zeolite. The glass fiber composite has excellent lightweightness, flame retardancy, impact resistance, stiffness, exterior characteristics and the like.

FIRE EXTINGUISHING MATERIAL FOR LITHIUM BATTERY

Resumen de: EP4706787A1

A fire extinguishing material for lithium battery fire suppression, of the present invention, is composed of: a granular first fire extinguishing material, which is prepared by firing a silica powder and the like and which has a predetermined size; a second fire extinguishing material of a single-layer graphene compound applied, in multiple layers, to the surface of the first fire extinguishing material; and a third fire extinguishing material made of a metal carbonate covalently bonded or applied to the graphene compound. During a lithium battery fire, when the fire extinguishing material of the present invention is applied to a fire source through a discharge means such as a fire extinguisher, the fire extinguishing material is put on top of the fire source, the second fire extinguishing material, that is, the metal carbonate, which comes in direct contact with the fire source, adsorbs carbon dioxide, which is most abundantly generated from the fire source, so as to absorb radicals while being converted into a bicarbonate, thereby primarily extinguishing the fire, and the graphene compound, which is the second fire extinguishing material with excellent thermal conductivity, rapidly releases heat from the fire to the outside so as to improve, by means of effective cooling, fire extinguishing performance for the lithium battery fire, thereby preventing thermal runaway during the lithium battery fire, and extinguishes the lithium battery fire together with an additional smothe

LID, POWER STORAGE DEVICE, AND PERIPHERAL MEMBER

Resumen de: EP4708485A1

Provided is a lid used with a casing of a power storage device, wherein the lid includes a heat-fusible resin layer the main material of which is an olefin-based copolymer.

MANUFACTURING METHOD AND DEVICE FOR AA LITHIUM ION BATTERY, APPARATUS AND MEDIUM

Resumen de: EP4708444A1

The present application relates to a preparation method, apparatus, device and medium for a No. 5 lithium-ion battery. The method includes: preparing a battery cell based on a preparation process of the battery cell; selecting a steel material for preparing the battery and stamping it to obtain an upper steel shell of the battery; acquiring and determining bending parameters of the spring sheet based on user requirements and attribute parameters of the spring sheet; assembling a PCB board and the upper steel shell of the battery based on the bending parameters of the spring sheet, bending a negative spring sheet on a side of the PCB board downwards, so that the negative spring sheet is in elastic contact with the upper steel shell, and bending a positive spring sheet at a bottom of the PCB board downwards, so that the positive spring plate is in elastic contact with a top of the battery cell, thus obtaining a complete step-down charging terminal; fitting the complete step-down charging terminal onto the battery cell to obtain a semi-finished product of the battery; and fixing the semi-finished product of the battery by roller pressing along a groove of the battery cell, and covering an insulating film on a outside of the semi-finished product after being fixed roller pressing to obtain a finished product of the battery. The present application has an effect of improving a safety of lithium-ion batteries.

MODIFIED SULFUR-CONTAINING SOLID ELECTROLYTE AND METHOD FOR PRODUCING IT

Resumen de: EP4707233A1

The subject matter of the invention provides a viable solvent treatment method for manufacturing surface-modified alkali metal sulfides or alkali metal thiophosphates, especially surface-modified lithium thiophosphates, e.g. Li₆PS₅Cl (mLi₆PS₅Cl). Utilizing nonpolar organic solvents to reduce the concentration of additives with Lewis-basic activity, the surface of, for example Li₆PS₅Cl, is modified to improve the ionic conductivity of electrolytes of type Li₆PS₅Cl or other lithium thiophosphates.

SHORT CIRCUIT SIGN DETECTION SYSTEM AND SHORT CIRCUIT SIGN DETECTION METHOD

Resumen de: EP4708611A1

A short circuit precursor detection system (1) includes a battery cell (21), a temperature sensor (13) that measures a battery temperature, a resistance measurement unit (101) that measures electrolyte resistance of a solid-state electrolyte of the battery cell (21), and a determination unit (104) that determines presence or absence of a precursor of occurrence of short circuit between a positive electrode and a negative electrode. The determination unit (104) determines that the precursor is present when an amount of decrease of the electrolyte resistance measured by the resistance measurement unit (101) during charging is larger than an amount of decrease of the electrolyte resistance caused by change in the battery temperature by a predetermined value or more.

BATTERY FOIL

Resumen de: EP4707416A1

The invention relates to a battery foil (current collector) comprising an aluminum alloy, with the following composition:Si: 0.1 - 0.2wt-%,Fe: ≤ 0.6wt-%,Cu: 0.1 - 0.2wt-%,Mn: 0.03 - 0.05wt-%,Mg: 0.0 - 0.05wt-%Zn: 0.0-0.1wt-%Ti: 0.0 - 0.05wt-%,with 3-4 times as much Fe as Si,with at least 4 times as much Cu as Ti,wherein the aluminum alloy may have impurities of Cd with a max 20ppm, Pb with a max 100ppm and Hg with a max 5ppm, the sum of Pb, Hg, Cd and CrVI being ≤100ppm, the others (not mentioned) individually <0.05 wt-% and the sum of the others ≤0.15 wt-%, with the rest of the alloy being Al,and, wherein the battery cathode foil has intermetallic phases having an average diameter length of 0.5µm or more and their number density being on average 1.3×10<4>particles/mm<2> or more.

PROCESS FOR MAKING PRECURSORS OF CATHODE ACTIVE MATERIALS FOR LITHIUM-ION BATTERIES

Resumen de: EP4707244A1

Process for making an (oxy)hydroxide of TM wherein TM is nickel or a combination of metals that comprises at least 60 mol-% nickel, referring to TM, and, optionally, at least one of cobalt and manganese, wherein said process comprises the steps of:(a) providing an aqueous slurry containing water-soluble salts of metals that constitute TM and slurried particles of (oxy)hydroxide of TM', wherein TM' is nickel or a combination of metals that comprises at least 60 mol-% nickel, referring to TM', and providing water-soluble salts of TM dissolved in water or in aqueous slurry (a),(b) providing an electrochemical cell comprising at least three compartments separated from each other by anion-exchange membranes, said compartments comprising anode and anolyte, aqueous slurry provided in step (a), and cathode and catholyte, respectively,(c) passing aqueous slurry as provided in step (a) and, if applicable, aqueous solution of salts of TM through the middle compartment and(d) applying an electrochemical current with a current density in the range of from 10 to 500 mA/cm²,(e) removing (oxy)hydroxide of TM from the electrochemical cell

CELL POUCH FILM, PACKAGING STRUCTURE COMPRISING SAME, AND METHOD FOR STORING CORRESPONDING CELL POUCH FILM

Resumen de: EP4708477A1

The present specification relates to a cell pouch film, a packaging structure comprising same, and a method for storing the corresponding cell pouch film. Therefore, the moisture regain of the cell pouch film is controlled such that moldability, the level of thermal deformation bubbles, and mechanical properties can all be excellent.

LITHIUM ION BATTERY MATERIAL AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: EP4707242A1

The present disclosure provides a lithium ion battery material and a preparation method therefor and a use thereof. The structural formula of the lithium ion battery material is Li4ZrF8-2XOX, wherein 0

CORE-SHELL/GLASSY SOLID-STATE ELECTROLYTE, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Nº publicación: EP4707258A1 11/03/2026

Solicitante:

LIONGO CHANGZHOU NEW ENERGY CO LTD [CN]
Liongo (Changzhou) New Energy Co., Ltd

Resumen de: EP4707258A1

Provided in the present disclosure is a composite material, which comprises LiAlPO4(OH)xF1-x and Al(H2PO4)3 compounded on the surface of the LiAlPO4(OH)xF1-x, wherein 0≤x≤1. A corresponding core-shell/glassy solid-state electrolyte material is also prepared in the present disclosure. The composite solid electrolyte has good ionic conductivity, good flexibility, a stable composite structure and thermal stability, such that when being applied to positive electrode coating, the composite solid electrolyte can slow down reduction in the capacity of a positive electrode by a coating layer, effectively remove alkaline residual lithium left on the surface in the preparation process of a positive electrode material, and convert the residual lithium into Li3PO4 favorable for ionic conductivity of the coating layer and AlPO4 capable of protecting the positive electrode. Moreover, Li3AlF6 is more stable to HF, and the good flexibility of a glassy structure thereof is beneficial to effective interfacial contact between the positive electrode and an electrolyte solution of the electrolyte, such that good interfacial ion conduction is achieved.