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BATTERY AND PREPARATION METHOD THEREFOR, AND ELECTRIC DEVICE

Resumen de: WO2025246231A1

A battery and a preparation method therefor, and an electric device. The battery comprises a positive electrode sheet, a negative electrode sheet, and an isolating membrane. The negative electrode sheet comprises a negative electrode current collector and a negative electrode active material layer located at least on one side of the negative electrode current collector. The negative electrode active material layer comprises a negative electrode active material, and the negative electrode active material comprises graphite. The proportion of the number of secondary particles in the negative electrode active material is greater than or equal to 65%, and the oil absorption value of the negative electrode active material is 40 mL/100g - 65 mL/100g. The volume distribution particle diameter Dv1 of the negative electrode active material is 4-8 μm.

BATTERY CELL COVER PLATE AND BATTERY CELL

Resumen de: WO2025246487A1

A battery cell comprises a battery cell cover plate. The battery cell cover plate comprises: a top cover sheet (10), provided with a mounting hole (11) passing through a main body thereof; a pressure relief assembly (20), arranged in the mounting hole (11); and a separating member (30), arranged on the side of the top cover sheet (10) facing a battery cell casing (60) and covering the mounting hole (11) so as to separate the pressure relief assembly (20) from an electrolyte (100) in the battery cell casing (60). By providing the separating member (30), the pressure relief assembly (20) is separated from the electrolyte (100) in the battery cell casing (60). Even if the electrolyte (100) shakes back and forth in the battery cell casing (60), direct impact cannot be caused to the pressure relief assembly (20). Instead, force acts on the separating member (30), thus achieving the effect of well cushioning the impact force of the electrolyte (100), preventing the pressure relief assembly (20) from being opened in advance under the impact of the electrolyte (100), reducing the risk of electrolyte leakage of the battery cell, and ensuring the sealing requirement of the battery cell, thereby prolonging the service life and improving the safety of the battery cell.

BATTERY AND BATTERY PACK

Resumen de: WO2025246867A1

Disclosed in the present application are a battery and a battery pack. The battery comprises a case, a top cover sheet and a pressure relief member, wherein the case is provided with an accommodating cavity for accommodating battery cells; the top cover sheet is connected to the case and covers the accommodating cavity, and the top cover sheet is provided with a through hole extending in the direction of thickness of the top cover sheet; the pressure relief member is connected to the top cover sheet and covers the through hole; the pressure relief member comprises a pressure relief body and a first connecting portion; the pressure relief body is located in the accommodating cavity; the first connecting portion is connected to the pressure relief body and is arranged around the pressure relief body; the first connecting portion extends in the direction of thickness; the end of the first connecting portion away from the pressure relief body is connected to the top cover sheet; in the direction of thickness, at least part of the first connecting portion is located between the pressure relief body and the top cover sheet; and in the direction of thickness, the dimensions of the first connecting portion are H2 mm, and the dimensions of the pressure relief body are H3 mm, where H2 and H3 satisfy: 0.2≤H2/H3≤100. The present application effectively prevents corrosion and cracking of the pressure relief body, thereby prolonging the service life of the pressure relief member.

BATTERY PRODUCTION APPARATUS

Resumen de: WO2025246411A1

The present application relates to a battery production apparatus. The battery production apparatus comprises a support, conveying mechanisms and heat exchange assemblies, wherein the conveying mechanisms are arranged on the support and are used for receiving and conveying a substrate; and the heat exchange assemblies are arranged on the support and located on a conveyance path of the substrate, and are used for exchanging heat with the substrate. The battery production apparatus provided in the present application achieves the normal conveyance and the cooling of the substrate, reduces the impact of thermal stress in the next process, and also shortens or eliminates the placement time for the substrate before entering the next process.

VALVE GROUP INTEGRATION MODULE, VEHICLE THERMAL MANAGEMENT SYSTEM, AND VEHICLE

Resumen de: WO2025246481A1

A valve group integration module (100), comprising: a base (1), a first expansion valve (2), and a second expansion valve (3). A first flow channel (11) and a second flow channel (12) are disposed within the base (1), the first expansion valve (2) is disposed within the first flow channel (11), and the second expansion valve (3) is disposed within the second flow channel (12). Also disclosed are a vehicle thermal management system and a vehicle. The described valve group integration module (100) has a high degree of integration and occupies a small amount space.

DOUBLE-LAYER MICRO-CHANNEL DIRECT COOLING SYSTEM

Resumen de: WO2025245963A1

The present disclosure relates to the technical field of batteries, and in particular to a double-layer micro-channel direct cooling system, comprising: upper liquid cooling plates and lower liquid cooling plates, wherein in a first preset direction, the upper liquid cooling plates and the lower liquid cooling plates are arranged in an up-down manner, and the flow direction of refrigerants in the upper liquid cooling plates is opposite to the flow direction of refrigerants in the lower liquid cooling plates. Therefore, in the double-layer micro-channel direct cooling system provided by the present disclosure, the upper liquid cooling plates and the lower liquid cooling plates are designed, and the refrigerants flow in opposite directions in the upper liquid cooling plates and the lower liquid cooling plates, and are coupled with each other, achieving more uniform temperature distribution of the liquid cooling plates . In addition, an expansion valve is integrated at a shared inlet of the upper liquid cooling plates and the lower liquid cooling plates, so that accurate flow control can be achieved according to the system requirements, the integration level is high, and stability and reliability are achieved, thereby improving the efficiency of a refrigeration system.

BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025245965A1

Disclosed in the present application are a battery and an electric device. The battery comprises battery cells and a thermal management component. Each battery cell comprises a casing, wherein the casing has a first wall. The thermal management component is in thermal conduction connection with the first wall, and a flow channel for accommodating a heat exchange medium is formed inside the thermal management component; the first wall has a first surface facing the thermal management component, and the thermal management component has a second surface facing the battery cell; the first surface is provided with a first tip discharge portion; and/or the second surface is provided with a second tip discharge portion. The structure can greatly improve the reliability of the battery.

DRYING DEVICE AND DRYING METHOD FOR ELECTRODE PLATE

Resumen de: WO2025245961A1

Provided in the present application is a drying device, comprising a box body, a plurality of first infrared drying assemblies and a plurality of second infrared drying assemblies. The first infrared drying assemblies and the second infrared drying assemblies are arranged in a first drying section of the box body and are respectively arranged on two opposite sides of the first drying section of a drying channel. The first infrared drying assemblies and the second infrared drying assemblies both emit infrared radiation to dry two surfaces of an electrode plate conveyed in the drying channel, thereby greatly increasing the drying efficiency.

TRACTION BATTERY HEAT DISSIPATION STRUCTURE GENERATION METHOD AND APPARATUS, AND SYSTEM, DEVICE AND MEDIUM

Resumen de: WO2025246140A1

The embodiments of the present application relate to the technical field of new energy vehicles. Provided are a traction battery heat dissipation structure generation method and apparatus, and a system, a device and a medium. The method comprises: acquiring size information of a battery cell; determining design parameters of a Tesla valve on the basis of the size information, and generating a Tesla valve design scheme set; on the basis of a set screening rule, obtaining the optimal Tesla valve design scheme; and on the basis of the optimal Tesla valve design scheme, generating a flow guide heat dissipation structure based on the Tesla valve, wherein the battery cell is arranged in the flow guide heat dissipation structure. In the embodiments of the present application, the flow guide heat dissipation structure based on the Tesla valve is correspondingly designed and generated on the basis of the size information of the battery cell of a traction battery, and the battery cell is arranged in the flow guide heat dissipation structure, so that heat of the traction battery can be effectively released at a high speed, thereby avoiding thermal runaway of the battery, and preventing safety accidents.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: WO2025246369A1

A battery cell (30), a battery (100), and an electric device. The battery cell (30) comprises a casing (31) and an electrode assembly (32). A positive electrode active material is a sodium nickel (Ni)-manganese (Mn)-iron (Fe)-based oxide, and the general chemical formula of the sodium Ni-Mn-Fe-based oxide is NaqNixMnyFezMpO2, wherein 0

BATTERY CELL AND BATTERY

Resumen de: WO2025246358A1

The present application provides a battery cell. The length of a positive electrode tab in a direction perpendicular to the direction of extension thereof is L1, and the length of a negative electrode tab in a direction perpendicular to the direction of extension thereof is L2, wherein L1/L2=n, and the value range of n is 1.2≤n≤2, that is, the length of the positive electrode tab is greater than that of the negative electrode tab, so that the extended design of the positive electrode tab is achieved, electron conduction is accelerated, and a high-speed electron channel is constructed, thereby reducing the electron conduction resistance during charging, and further reducing the direct-current resistance of the battery cell.

THERMAL MANAGEMENT SYSTEM AND VEHICLE

Resumen de: WO2025246456A1

A thermal management system and a vehicle. The thermal management system comprises an integrated thermal management module (1), a motor (21), a battery (31), a heat dissipation device (41), and a waste heat recovery device (51). The integrated thermal management module (1) comprises a multi-way valve (11); the multi-way valve (11) comprises a valve body and a valve core; the valve body is provided with a plurality of communicating ports, the motor (21) is communicated with a first communicating port (111) and a second communicating port (112) by means of a motor circulation loop (2), the battery (31) is communicated with a third communicating port (113) and a fourth communicating port (114) by means of a battery circulation loop (3), the heat dissipation device (41) is communicated with a fifth communicating port (115) and a sixth communicating port (116) by means of a heat dissipation loop (4), and the waste heat recovery device (51) is communicated with a seventh communicating port (117) and an eighth communicating port (118) by means of a waste heat recovery loop (5); the valve core is capable of rotating relative to the valve body, so that the thermal management system at least has a first working mode, a second working mode, a third working mode, and a fourth working mode and then a vehicle can have different driving states in different environments, thereby reducing the influence of environmental factors on parts, prolonging the service life of each part, and optimizing

BATTERY CELL SAFETY PREDICTION METHOD AND APPARATUS, DEVICE, AND MEDIUM

Resumen de: WO2025245958A1

The present application provides a battery cell safety prediction method and apparatus, a device, and a medium. The method comprises: determining a first environment parameter, and executing a first thermal runaway operation on a target battery cell on the basis of the first environment parameter until thermal runaway of the target battery cell occurs; acquiring a first state parameter of the target battery cell; determining a target heat generation model; performing three-dimensional modeling on the structure of a battery; executing a second thermal runaway operation on the established model; on the basis of the target heat generation model, acquiring a second state parameter during the second thermal runaway operation; and determining the safety of a target battery pack. A target heat generation model is determined by means of an actual thermal runaway operation, and the safety of a target battery pack is determined on the basis of the target heat generation model by means of a thermal runaway simulation operation, thereby saving test costs and simplifying a battery cell safety prediction system. Additionally, the method reduces the requirements of mechanism modeling for basic data, and thus improves the efficiency and accuracy of battery cell safety prediction.

POLYMER SOLID ELECTROLYTE MEMBRANE, PREPARATION METHOD THEREFOR, SOLID-STATE BATTERY, AND ELECTRICAL APPARATUS

Resumen de: WO2025246146A1

A polymer solid electrolyte membrane, a preparation method therefor, a solid-state battery, and an electrical apparatus, belonging to the field of batteries. The preparation method comprises: mixing a zinc salt, a lithium imide salt, a polymer matrix, and an organic solvent, drying, pre-pressing and forming, and then performing hot pressing for 35-45 minutes at 10-15 MPa and a temperature of 100-120°C. The decomposition temperature of the lithium imide salt is greater than the hot-pressing temperature. The polymer matrix contains polar functional groups. The melting temperature is less than or equal to 100°C, and the glass transition temperature is less than or equal to -15°C. The lithium imide salt and the polymer matrix are jointly used as a main body, and the mass ratio of the zinc salt to the main body is (0.8-1.2):100. The prepared polymer solid electrolyte membrane has a block structure having flexible chain segments and rigid chain segments that alternate with each other, and the polymer solid electrolyte membrane can effectively improve the cycle performance of a solid-state battery.

POSITIVE ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREFOR, AND BATTERY

Resumen de: WO2025245954A1

A positive electrode active material, a preparation method therefor, and a battery. The positive electrode active material comprises: an inner core, the inner core comprising a lithium metal phosphate; a first coating layer, the first coating layer covering at least part of the surface of the inner core; and a second coating layer, the second coating layer covering at least part of the surface of the first coating layer. The positive electrode active material has an XRD diffraction peak intensity of S1 at a 2θ diffraction angle of 35.5°-35.7°, and the positive electrode active material has an XRD diffraction peak intensity of S2 at a 2θ diffraction angle of 24.1°-25.4°, S2/S1 being (0.005-0.05):1. The positive electrode active material has an XRD diffraction peak intensity of S3 at a 2θ diffraction angle of 28.8°-29.2°, S3/S1 being (0.005-0.05):1.

DEVICE FOR PROVIDING A GROUND PATH, AND HIGH-VOLTAGE BATTERY

Resumen de: WO2025247658A1

The invention relates to a device for providing a ground path, used for shielding, between a printed circuit board (8) and an electrically conductive housing component (2) having a ground plate (10) which has radially resilient contact elements (14). The device according to the invention is characterised in that the printed circuit board (8) is electrically connected to the ground plate (10) via a screw connection or rivet connection (13), wherein the electrically conductive connection between the ground plate (10) and the housing component (2) is established via the resilient contact elements (14) of the ground plate (10). The device can in particular be used in a high-voltage battery.

Batteriekomponentenhalter zur Aufnahme von wenigstens einer Batteriekomponente, Batteriegehäuse zur Aufnahme von einer Vielzahl von Batteriekomponenten, Batterie mit einem Batteriegehäuse und Kraftfahrzeug mit einer Batterie

Resumen de: DE102024115437A1

Die Erfindung betrifft einen Batteriekomponentenhalter (1) zur Aufnahme von wenigstens einer Batteriekomponente (2), aufweisend ein erstes Batteriekomponentenhalterteil (3) und ein zweites Batteriekomponentenhalterteil (3), wobei das erste Batteriekomponentenhalterteil (3) und das zweite Batteriekomponentenhalterteil (3) derart benachbart zueinander angeordnet sind, dass eine erste Aufnahmeeinrichtung (4) des ersten Batteriekomponentenhalterteils (3) und eine zweite Aufnahmeeinrichtung (4) des zweiten Batteriekomponentenhalterteils (3) gemeinsam ein Aufnahmevolumen (5) zur Aufnahme von zumindest einer Batteriekomponente (2) zumindest teilweise begrenzen, wobei der Batteriekomponentenhalter (1) durch folgendes Merkmal gekennzeichnet ist: der Batteriekomponentenhalter (1) weist eine Wärmeübertragungseinrichtung (6) auf, die im Aufnahmevolumen (5) zwischen dem ersten Batteriekomponentenhalterteil (3) und dem zweiten Batteriekomponentenhalterteil (3) derart angeordnet ist, dass eine Wärmeübertragungsfläche (7) der Wärmeübertragungseinrichtung (6) einen Aufnahmeraum (8) zur Aufnahme von zumindest einer Batteriekomponente (2) zumindest teilweise begrenzt.

Verfahren und Ladeeinrichtung zum zeitoptimierten Aufladen eines mobilen Geräts in einem Kraftfahrzeug und entsprechend eingerichtetes Kraftfahrzeug

Resumen de: DE102024205077A1

Die Erfindung betrifft ein Verfahren (11) und eine entsprechende Ladeeinrichtung (2) zum Aufladen eines mobilen elektronischen Geräts (6) in einem Kraftfahrzeug (1). In dem Verfahren (11) wird mittels der Ladeeinrichtung (2) das zum Aufladen damit angeordnete Gerät (6) detektiert. Es wird dann eine Zeitangabe bestimmt, die angibt, wieviel Zeit während einer aktuellen Fahrt des Kraftfahrzeugs (1) voraussichtlich noch zum Aufladen des Geräts (6) zur Verfügung steht. Es wird dann veranlasst, dass das Gerät (6) so aufgeladen wird, dass es erst zum Ende der aktuellen Fahrt des Kraftfahrzeugs (1) hin oder erst innerhalb eines vorgegebenen mit dem Ende der aktuellen Fahrt endenden Zeitraum seinen maximalen Ladezustand erreicht. Die Erfindung betrifft auch ein entsprechend eingerichtetes Kraftfahrzeug (1).

Batteriemodul, Verfahren zur Herstellung des Batteriemoduls und Fahrzeug mit Batteriemodul

Resumen de: DE102024115011A1

Die vorliegende Erfindung betrifft ein Batteriemodul (1), ein Verfahren zur Herstellung des Batteriemoduls (1) und ein Fahrzeug mit einem erfindungsgemäßen Batteriemodul (1). Das erfindungsgemäße Batteriemodul (1) weist mindestens eine Batteriezelle (10) mit einem Zellvent (11), dazu ausgebildet im Falle eines Events in der Batteriezelle (10) entstehende Gase aus der Batteriezelle (10) entweichen zu lassen, auf. Weiterhin weist es ein Gehäuse (20) auf, in welchem die Batteriezellen (10) angeordnet ist, wobei das Gehäuse (20) eine Entgasungsöffnung (21) aufweist, die dazu ausgebildet ist, bei Überschreiten eines Grenzüberdrucks im Inneren des Gehäuses (20) zu bersten, und ein Ausleiten des Überdrucks aus dem Inneren des Gehäuses (20) zu ermöglichen. Erfindungsgemäß ist weiterhin ein Druckminderer (30) vorgesehen, welcher um den Zellvent (11) und/oder die Entgasungsöffnung (21) auf einer Gehäuseinnenseite herum angeordnet ist und dazu ausgebildet ist, durch eine Aktivierung sein Volumen, insbesondere reversibel, zu vergrößern.

TRAKTIONSBATTERIEPACKMODULANBRINGUNGSSYSTEM, DAS LEISTEN AUFWEIST

Resumen de: DE102025121144A1

Eine Batteriepackbaugruppe beinhaltet ein Strukturelement eines Batteriepacks; ein Modul des Batteriepacks; und ein Anbringungssystem, das eine Vielzahl von Leisten aufweist. Die Leisten können ineinandergreifen, um das Modul an dem Strukturelement zu befestigen. Mechanische Befestigungselemente können zudem verwendet werden, um das Modul an dem Strukturelement zu befestigen.

BUS CONNECTOR FOR AN ENERGY STORAGE SYSTEM

Resumen de: WO2025251024A1

A bus connector for an energy storage system is provided. The bus connector includes a printed circuit board including a first plurality of metal plates, a second plurality of metal plates, a plurality of bus taps, a plurality of conducting stripes, and a temperature sensor. The first plurality of metal plates is coupled to first terminals of the first battery module. The second plurality of metal plates is coupled to second terminals of the second battery module. Each of the first plurality of metal plates, each of the second plurality of metal plates, and the temperature sensor are connected to a respective bus tap of the plurality of bus taps through a respective conducting stripe of the plurality of conducting stripes. The temperature sensor is configured to sense a temperature of at least one of the first battery module and the second battery module.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: WO2025246134A1

A battery cell (20), a battery (100), and an electric device, relating to the technical field of batteries. The battery cell (20) comprises a casing (21), electrode assemblies (22), and a pressure relief mechanism (23). The casing (21) comprises a wall portion (211). The electrode assemblies (22) are accommodated in the casing (21). The pressure relief mechanism (23) is arranged on the wall portion (211), and the pressure relief mechanism (23) is configured to release the internal pressure from the battery cell (20). The wall portion (211) has a first surface (2111) facing the electrode assemblies (22); abutting portions (2112) protrude from the first surface (2111); along a thickness direction (X) of the wall portion (211), the abutting portions (2112) abut against the electrode assemblies (22), so that an exhaust channel (24) is formed between the electrode assemblies (22) and the first surface (2111); and the exhaust channel (24) is configured to guide the gas inside the casing (21) to the pressure relief mechanism (23). The battery cell (20) can mitigate the phenomenon of the electrode assemblies (22) blocking or clogging the pressure relief mechanism (23), so as to enhance the internal exhaust smoothness of the battery cell (20) during thermal runaway, such that the pressure relief rate of the battery cell (20) can be increased, thereby facilitating reduction of the risk of explosion or bursting of the battery cell (20) caused by untimely pressure relief, improving the o

CASE, BATTERY, AND ELECTRIC DEVICE

Resumen de: WO2025245936A1

A case (100), a battery (300), and an electric device (400). The case (100) comprises a frame (10) and a support plate (20). The support plate (20) comprises a plurality of structural plates and a buffer plate (23) arranged between every two adjacent structural plates. At least one structural plate is connected to the frame (10). The buffer plate (23) comprises a plate body (231) and a reinforcing plate (232) arranged in a gap of the plate body (231), and the reinforcing plate (232) is at least used for filling the gap of the plate body (231) in the width direction of the support plate (20).

NEGATIVE ELECTRODE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: WO2025246471A1

A negative electrode material (100) comprises a silicon-carbon core (10) and a coating layer (20) that coats the silicon-carbon core (10), wherein the silicon-carbon core (10) comprises a porous carbon matrix (11) and an amorphous silicon material (12) arranged in pores of the porous carbon matrix (11), the volume of micropores in the porous carbon matrix (11) accounting for 80-90% of the total pore volume of the porous carbon matrix (11); and the amorphous silicon material (12) is doped with nitrogen, the nitrogen accounting for 0.2-1% of the total mass of the negative electrode material (100). By means of the arrangement of the micropores and the doping of amorphous silicon, the formation and growth of a crystalline phase during a reaction of the negative electrode material (100) with a metal can be effectively inhibited, thereby improving the structural stability and cycling stability of the negative electrode material (100), which is conducive to improving the cycling performance of a negative electrode sheet (200) and prolonging the cycle life of a battery.

EXPLOSION-PROOF VALVE AND BATTERY

Nº publicación: WO2025246250A1 04/12/2025

Solicitante:

ZHEJIANG GEELY HOLDING GROUP CO LTD [CN]
VIRIDI E MOBILITY TECH NINGBO CO LTD [CN]
ZHEJIANG ZEEKR INTELLIGENT TECH CO LTD [CN]
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\u5A01\u777F\u7535\u52A8\u6C7D\u8F66\u6280\u672F\uFF08\u5B81\u6CE2\uFF09\u6709\u9650\u516C\u53F8,
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Resumen de: WO2025246250A1

Provided are an explosion-proof valve and a battery. The explosion-proof valve, which is used for being mounted on a battery, comprises a valve body (100) and a burst groove (200). The thickness of the middle part of the valve body (100) is greater than that of the edge of the valve body (100). The burst groove (200) is arranged on the valve body (100) and close to the edge of the valve body (100).