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DRYING CHAMBER DEVICE FOR PREVENTING MEANDERING OF ELECTRODE SHEET FOR SECONDARY BATTERY

Resumen de: EP4715881A1

The present invention relates to a drying chamber device for preventing meandering of an electrode sheet for a secondary battery. The device dries an active material by heat, by applying the heat while allowing an electrode sheet to pass therethrough, the electrode sheet including a coated portion which is a region coated with an active material and an uncoated portion on which the active material is not coated. The device comprises: a drying case having an inlet part and an outlet part and allowing an electrode sheet to pass therethrough and providing a drying space; a plurality of transfer rolls arranged inside the drying case and transferring an electrode sheet having entered through the inlet part, to send the electrode sheet to the outlet part; a heating portion which dries the active material by applying heat to the electrode sheet passing through the drying case; and a plurality of meandering prevention rolls that are installed between the transfer rolls and prevent meandering of the electrode sheet by applying a pulling force to the uncoated portion of the electrode sheet. The drying chamber device for preventing meandering of an electrode sheet for a secondary battery according to the present invention configured as above prevents meandering of an electrode sheet passing through a drying case, thereby enabling uniform drying of an active material.

SEPARATOR FOR ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE COMPRISING SAME

Resumen de: EP4715995A1

The present disclosure relates to a separator for an electrochemical device and an electrochemical device including the same, and more particularly, to a separator for an electrochemical device including a plate-shaped silicate-based composition in a coating layer, thereby capable of improving dispersibility of a slurry for the coating layer and improving uniformity of the coating layer, and an electrochemical device including the same.

ELECTRODE SHEET AND SECONDARY BATTERY

Resumen de: EP4715945A1

There is provided a technique for improving the usefulness of a lithium secondary battery.An electrode sheet 1 has a longitudinal direction and a lateral direction and constitutes an electrode of a secondary battery 2 by being wound with the lateral direction as an axial direction. The electrode sheet 1 includes a current collector 3 that includes a resin layer 10, and a first current collecting layer 12a and a second current collecting layer 12b that are respectively provided on both surfaces of the resin layer 10; a first active material layer 16a that is provided on a surface of the first current collecting layer 12a on a side opposite to the resin layer 10; and a first metal sheet 20a that is bonded to one end of the first current collecting layer 12a in the lateral direction and has a first bonding mark 24a formed along the longitudinal direction by the bonding, where the first metal sheet 20a has a first extending part 40a that extends from the first current collecting layer 12a in the lateral direction.

BATTERY CONTROL SYSTEM AND BATTERY CONTROL METHOD

Resumen de: EP4715957A1

A battery control system (1) controls a solid-state battery including a battery cell (21) having a solid electrolyte and a negative electrode containing lithium. The battery control system includes: a measurement unit that measures a surface pressure distribution from an actual measured value or an estimated value of a surface pressure distribution on a main surface of the battery cell (21); and a control unit that controls a charge/discharge current of the solid-state battery, the charge/discharge current being at least one of a charge current and a discharge current. The control unit determines the charge/discharge current according to an upper-limit surface pressure difference and a lower-limit surface pressure difference, the upper-limit surface pressure difference being a difference between a measured value of the surface pressure distribution measured by the measurement unit and an upper limit surface pressure of the battery cell (21), the lower-limit surface pressure difference being a difference between the measured value of the surface pressure distribution measured by the measurement unit and a lower limit surface pressure of the battery cell (21).

BATTERY HOUSING FOR RECEIVING A PLURALITY OF BATTERY COMPONENTS, BATTERY COMPRISING A BATTERY HOUSING, AND MOTOR VEHICLE COMPRISING A BATTERY

Resumen de: CN121285897A

The invention relates to a battery housing (1) for accommodating a plurality of battery assemblies (3), comprising a first battery housing assembly (10), a second battery housing assembly (20) and at least one battery assembly holder (30) having a plurality of accommodating devices (40) for accommodating the battery assemblies (3). The battery assembly holder (30) is arranged in a sandwich-like manner between the first battery housing assembly (10) and the second battery housing assembly (20) and is integrally bonded to the first battery housing assembly (10) and/or the second battery housing assembly (20). The invention also relates to a battery (4) having the battery housing (1) and to a motor vehicle having the battery (4).

LITHIUM MANGANESE PHOSPHATE-BASED ACTIVE MATERIALS AND LITHIUM ION ELECTROCHEMICAL ELEMENT ELECTRODE COMPRISING SUCH ACTIVE MATERIALS

Resumen de: WO2024235662A1

The invention relates to an electrode comprising one or more active materials, wherein one of the active materials is a lithium manganese iron phosphate of formula LixMn1-y-zFeyM2PO4 (LMFP) where 0.8≤x≤1.2; 0.5≤1-y-z<1; 0

MULTI-WAY VALVE, THERMAL MANAGEMENT APPARATUS, ENERGY STORAGE DEVICE, AND VEHICLE

Resumen de: EP4715245A1

This application provides a multi-way valve, a heat management apparatus, an energy storage device, and a vehicle, and relates to the field of energy technologies, to resolve an existing problem such as a complex multi-way valve structure. The multi-way valve may include a housing, at least two valve cores, a transmission assembly, and a driver assembly. There is a cavity inside the housing. The at least two valve cores are rotatably disposed in the cavity and sequentially disposed in an axial direction. The transmission assembly is connected to the at least two valve cores. The driver assembly is disposed at a first end of the housing and is connected to the transmission assembly. The driver assembly is configured to drive, by using the transmission assembly, each valve core to rotate. The plurality of valve cores are sequentially disposed in the axial direction, and no radial size of the multi-way valve is additionally increased, to help implement a miniaturization design of the multi-way valve. The driver assembly may drive, by using the transmission assembly, each valve core to rotate, so that mutual interference between different valve cores can be avoided. When a connection state or a disconnection state between different interfaces needs to be switched, flexibility and reliability are good.

BATTERY PACK COMPRISING A POLYSILOXANE COMPOSITE AND METHODS FOR PRODUCING THE SAME

Resumen de: CN121127538A

Battery packs comprising polysiloxane composites and methods of producing the same are provided. The battery pack comprises a polysiloxane composite wherein the polysiloxane composite partially or completely fills the gap between two adjacent battery cells and has an average cell size of < = 100 mu m, the average cell size is much smaller than silicone foam materials/mats made from similar silicone foam compositions in addition to the use of chemical blowing agents. The polysiloxane composite has compressibility that is adjustable over a wide range as compared to ordinary silicone composite foams that are less compressible.

QUALITY TRACING SYSTEM AND METHOD FOR LITHIUM ELECTRODE SHEET

Resumen de: EP4715892A1

The present application relates to the field of quality tracing technology and discloses a quality tracing system and method for lithium electrode sheets. The system includes: an electrode sheet segmentation unit, a coating unit, an electrode sheet measurement unit and a control unit, wherein the electrode sheet segmentation unit is configured to perform physical segmentation on lithium electrode sheets to be processed; the coating unit is configured to identify and coat the lithium electrode sheets which have been subjected to the physical segmentation; the electrode sheet measurement unit is configured to measure the coated lithium electrode sheet; and the control unit is configured to control the electrode sheet segmentation unit, the coating unit and the electrode sheet measurement unit to operate, collect data generated during a physical segmentation process, a coating process and a measurement process of the electrode sheets and store the data, and perform quality tracing on the lithium electrode sheets according to the stored data. In the present application, good products and defective products of lithium electrode sheets can be accurately distinguished, thereby avoiding the phenomenon in which the defective products of the lithium electrode sheets flow to subsequent procedures and the good products are overly filtered out and scrapped, and making the statistics on the yield of the lithium electrode sheets more accurate, and the quality tracing of the lithium electrod

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4715991A1

The present application provides a battery cell, a battery, and an electric device. The battery cell includes a housing, a pressure relief mechanism, and a protective member. The housing includes a wall portion. The pressure relief mechanism is provided at the wall portion, and can be actuated to release gas within the housing in a case where an internal pressure or temperature of the battery cell reaches a threshold value. The protective member has a melting point greater than or equal to 300°C, and the protective member covers at least part of the pressure relief mechanism in a thickness direction of the wall portion.

COATING DIE HEAD, AND COATING APPARATUS FOR ELECTRODE SHEETS

Resumen de: EP4714560A1

Provided are a coating die head and a coating apparatus for an electrode sheet. The coating die head is provided with a feed inlet (111), a first flow equalizing cavity (11210), flow channels (11220), and a plurality of coating ports (1410); the first flow equalizing cavity (11210) extends in a first direction and is communicated with the feed inlet (111); the plurality of coating ports (1410) are arranged at intervals in the first direction; and the flow channels (11220) are configured to communicate the first flow equalizing cavity (11210) with the plurality of coating ports (1410). In the direction of the coating ports (1410) moving away from the feed inlet (111), the minimum lengths of the flow channels (11220) between the coating ports (1410) among the plurality of coating ports (1410) and the first flow equalizing cavity (11210) show a decreasing trend.

COATING DIE AND ELECTRODE SHEET COATING DEVICE

Resumen de: EP4714559A1

Provided are a coating die head and a coating device for an electrode sheet. The coating die head is provided with a feeding port (111), a first flow equalizing cavity (11210), flow channels (11220), and a plurality of coating ports (1410); the first flow equalizing cavity (11210) extends in a first direction and is communicated with the feeding port (111); the plurality of coating ports (1410) are arranged at intervals in the first direction; and the flow channels (11220) are configured to communicate the first flow equalizing cavity (11210) with the plurality of coating ports (1410). Since the minimum cross-sectional areas of the flow channel (11220) between the plurality of coating ports (1410) and the first flow equalizing cavity (11210) are sequentially increased in the direction from the coating ports (1410) close to the feeding port (111) to the coating ports (1410) distant from the feeding port (111), the pressure lost by the slurry flowing to the coating ports (1410) distant from the feeding port (111) during the flow process is lower than the pressure lost by the slurry flowing to the coating ports (1410) close to the feeding port (111), thereby improving the uniformity of slurry coating in the coating process.

NON-AQUEOUS ELECTROLYTE SOLUTION AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4715938A1

Embodiments of the present invention provide a non-aqueous electrolyte and a lithium secondary battery including the same. The non-aqueous electrolyte includes a non-aqueous organic solvent, a lithium salt, and an additive including a sulfonyl compound containing a sulfonyl group and two phosphorus atoms within one molecule.

ELECTRODE FOR LITHIUM METAL BATTERY AND LITHIUM METAL BATTERY COMPRISING SAME

Resumen de: EP4715890A1

An electrode for a lithium metal battery according to embodiments of the present disclosure includes a lithium metal storage layer including silicon oxide particles. The silicon oxide particles have a porous structure, and the molar ratio of oxygen to silicon in the silicon oxide particles is 1.5 or more and less than 2.0. A lithium metal battery according to embodiments of the present disclosure includes the electrode for a lithium metal battery according to the above-described embodiments.

BATTERY MODULE AND ASSEMBLY METHOD THEREFOR

Resumen de: EP4715997A1

The present disclosure relates to a battery module and an assembly method therefor, the battery module comprising: a plurality of battery cells stacked in one direction; a busbar electrically connected to the plurality of battery cells stacked in the one direction; a sensing unit electrically connected to the busbar in order to detect the voltage of the plurality of battery cells; and a sensing terminal unit provided between the sensing unit and the busbar so as to electrically connect the busbar and the sensing unit. The sensing terminal unit comprises: a coupling unit positioned so as to face at least a portion of the busbar; and a plurality of welding regions for coupling the coupling unit and the sensing terminal unit when the sensing terminal unit and the busbar are welded.

POLYCRYSTALLINE SOLID ELECTROLYTE

Resumen de: EP4715927A1

The present invention relates to a polycrystalline solid electrolyte material of the formula (I) M_3-z(Me^k+)_fX_3-z+k*f having at least one of its dimensions that is lower or equal to 100 µm, and having at least another dimension that is greater than or equal to 1 mm. The invention further concerns an electrolyte tape comprising said polycrystalline solid electrolyte material. Finally, the invention pertains to their preparation process comprising the steps of: disposing a compound of formula (I) or an ammonium complex thereof on a substantially planar surface, heating the compound of formula (I) or the ammonium complex thereof at a temperature ranging from 290 °C to 550 °C, and concomitantly or sequentially to the heating step, applying to the compound of formula (I) a pressure that is orthogonal to the substantially planar surface, said pressure ranging from 1.5 MPa to 30 MPa.

CASE FOR BATTERIES

Resumen de: EP4715979A1

The case (1) for batteries comprises a plurality of housings (2) for said batteries; a closed base (3) placed on a first end (4) of the case (1) for contacting with the batteries when they are in said housings (2); an opening (5) placed at a second end (6) opposite from the first end (4) for the insertion and removal of the batteries from the housings (2); at least one first magnet (7) placed at the first end (4) of the case (1) for detachably retaining the batteries inside the housings (2); and at least one second magnet (8) placed at the second end (6) of the case (1) for detachably attaching an adjacent case (1).It permits to provide a case for batteries, that permit to detachably join two or more cases in a modular way, so that the storage and transportation of the batteries is enhanced.

IONICALLY CONDUCTIVE POLYMERIC BINDER FOR CATHODE

Resumen de: EP4715902A1

The present invention relates to an ionically conductive polymeric binder for a cathode comprising m repeat units according to formula (I) and n repeat units according to formula (II)wherein R₁ is (CH₂)_x-R₃, wherein x is between 1 and 20 and R₃ is H or CN; R₂ and Rs, individually, are C₁-C₁₀ alkyl or C₂-C₁₀ alkenyl; M is an alkali metal or an alkaline earth metal; the ratio of m to n (m/n) is between 25:1 and 1:25; and m + n is q, wherein q is between 50 and 5000. The present invention further relates to a cathode comprising the ionically conductive polymeric binder, and to methods of producing the ionically conductive polymeric binder.

IONICALLY CONDUCTIVE POLYMERS FOR GEL POLYMER ELECTROLYTE, AND GEL POLYMER ELECTROLYTE COMPRISING SUCH AN IONICALLY CONDUCTIVE POLYMER

Resumen de: EP4715926A1

The present invention relates to an ionically conductive polymer for a gel polymer electrolyte comprising m repeat units according to formula (I) and n repeat units according to formula (II)wherein R₁ is (CH₂)_x-R₃, wherein x is between 1 and 20 and R₃ is H or CN; R₂ and R₅, individually, are C₁-C₁₀ alkyl or C₂-C₁₀ alkenyl; M is an alkali metal or an alkaline earth metal; the ratio of m to n (m/n) is between 25:1 and 1:25; and m + n is q, wherein q is between 50 and 5000. The present invention further relates to a gel polymer electrolyte comprising the ionically conductive polymer, and to methods of producing the ionically conductive polymer.

ELECTRODE ASSEMBLY AND ELECTROCHEMICAL DEVICE INCLUDING SAME

Resumen de: EP4715996A1

The present disclosure provides an electrode assembly and a method for manufacturing the same, the electrode assembly having an adhesive portion in a predetermined region of an interface between a separator and an electrode, thereby improving a phenomenon of separation between the separator and the electrode and a phenomenon of short circuit between the electrodes. The electrode assembly of the present disclosure comprises an electrode, a separator, and a counter electrode, wherein the electrode and the counter electrode each include a tab extending from a current collector, and at least one surface of an interface between the separator and at least one of the electrode and the counter electrode includes an adhesive portion formed in at least one end region in a direction in which the tab of the electrode is located.

HALOGEN-FREE POLYMERIC BINDER FOR CATHODE

Resumen de: EP4715901A1

The present invention relates to a halogen-free polymeric binder for a cathode according to formula (I)wherein R₁ is (CH₂)_x-R₃, wherein x is between 1 and 20 and R₃ is H or CN; R₂ is C₁-C₁₀ alkyl or C₂-C₁₀ alkenyl, and n is between 50 and 5000. The present invention further relates to a cathode comprising the halogen-free polymeric binder, and to methods of producing the halogen-free polymeric binder.

A VEHICLE CONTROL SYSTEM AND METHOD FOR BATTERY SOX MANAGEMENT

Resumen de: EP4714708A1

The present disclosure relates to a vehicle control system and method for SoX management. The vehicle control system comprises a control circuitry and a battery management system. The control circuitry determines an operational schedule of the vehicle and monitors at least one parameter of battery state. The battery management unit is communicatively coupled to the control circuitry. The battery management unit defines and implements an adaptive battery threshold window based on an operational schedule of the vehicle and the at least one parameter of battery state. The adaptative battery threshold window comprises multiple soft threshold values.

METHOD FOR PRODUCING METAL-CONTAINING HYDROXIDE OR OXYHYDROXIDE MATERIAL

Resumen de: EP4714904A1

A method for producing a metal-containing hydroxide or oxyhydroxide particulate material, the method comprising the steps of:(a) providing a first slurry comprising ammonia and particles of hydroxide or oxyhydroxide of metals Mc;(b) reducing a level of ammonia (NH3(aq)) from at least a portion of the first slurry to obtain a seed slurry; and(c) combining the seed slurry with streams of an aqueous solution (As) containing salts of metals Ms and an aqueous solution (Bs) containing a precipitating agent, thereby obtaining a second slurry comprising particles having a layer of hydroxide or oxyhydroxide of Ms on the particles of the seed slurry,wherein the Mc=Ni1-xc-yc-zcMnxcCoycAzc with 0≤xc≤0.85, 0≤yc≤0.35, 0≤zc<0.1, and 0.15≤1-xc-yc-zc≤1; andwherein the Ms=Ni1-xs-ys-zsMnxsCoysAzs with 0.55≤xs≤0.85, 0≤ys≤0.35, 0≤zs<0.1, and 0.15≤1-xs-ys-zs≤0.45.

HEAT TRANSFER FLUID

Resumen de: EP4715023A1

A heat transfer fluid for electric vehicle applications, wherein the heat transfer fluid is a dielectric fluid configured to transfer heat in direct contact with live parts, the heat transfer fluid comprises at least 20 wt% of a first component based on the total weight of the heat transfer fluid, and at least 1 wt% and up to 80 wt% of a second component based on the total weight of the heat transfer fluid, wherein the first component has a kinematic viscosity KV 20 ≤ 50.0mm<2>/s, a kinematic viscosity KV 100 ≤ 10.0mm<2>/s, and an initial boiling point (IBP) ≥ 150 °C, and the second component has a kinematic viscosity KV 20 ≤ 1.0 mm<2>/s,, wherein the KV 20 of the first component is higher than the KV 20 of the second component and a final boiling point (FBP) ≤ 100 °C,.A method for operating a thermal management arrangement (1) for electric components (2) in electric vehicles comprises the step of providing the thermal management arrangement (1). The thermal management arrangement (1) includes a heat source in the form of an electric component (2) which is arranged in a housing (3), a cooling circuit (5) comprising an encircling fluid line (6) which is thermally coupled to the electric component (2) and a heat exchanger (7) arranged in the fluid line (6). The thermal management arrangement (1) further comprises a heat transfer fluid disposed in the fluid line (6) and a pump (8) configured for transporting the heat transfer fluid through the fluid line (6). The hea

ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Nº publicación: EP4715943A1 25/03/2026

Solicitante:

CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
Contemporary Amperex Technology Co., Limited

Resumen de: EP4715943A1

This application provides an electrode assembly, a battery cell, a battery, and an electric device. The electrode assembly includes a negative electrode plate, a positive electrode plate, and a separator, where the negative electrode plate includes a negative electrode film layer, the negative electrode film layer including a fluorinated polymer; and the positive electrode plate includes a positive electrode film layer, the positive electrode film layer including a nitrile-based polymer material. Using this electrode assembly can significantly improve the cycle performance of batteries.