Ministerio de Industria, Turismo y Comercio LogoMinisterior
 

Alerta

Resultados 1057 resultados
LastUpdate Última actualización 21/11/2025 [07:10:00]
pdfxls
Publicaciones de los últimos 15 días/Last 15 days publications (excluidas pubs. CN y JP /CN and JP pubs. excluded)
previousPage Resultados 175 a 200 de 1057 nextPage  

ELECTROLYTE AND BATTERY

NºPublicación:  WO2025231931A1 13/11/2025
Solicitante: 
SHENZHEN INX TECH CO LTD [CN]
\u6DF1\u5733\u6B23\u754C\u80FD\u6E90\u79D1\u6280\u6709\u9650\u516C\u53F8
WO_2025231931_PA

Resumen de: WO2025231931A1

The present application relates to the technical field of batteries, and discloses an electrolyte and a battery. The electrolyte comprises a lithium salt, a solvent, and an additive, the structural formula of the additive being as shown in formula (I), wherein A- is selected from inorganic acid radical ions. The electrolyte provided by the present application is beneficial to improving the film forming performance of an SEI film, and improving the film forming quality of the SEI film.

BATTERY BOX BODY AND BATTERY PACK

NºPublicación:  WO2025232072A1 13/11/2025
Solicitante: 
EVE ENERGY CO LTD [CN]
\u60E0\u5DDE\u4EBF\u7EAC\u9502\u80FD\u80A1\u4EFD\u6709\u9650\u516C\u53F8
WO_2025232072_PA

Resumen de: WO2025232072A1

Provided in the present application are a battery box body and a battery pack. The battery box body in the battery pack comprises a liquid cooling plate (200), a bottom protective plate (100), and a seal ring (400). The liquid cooling plate (200) has a first end face and a second end face that is opposite to the first end face. The second end face protrudes in a direction facing away from the first end face to form a first protruding end face and a second protruding end face which are connected to each other. The vertical distance between the first protruding end face and the second end face is smaller than the vertical distance between the second protruding end face and the second end face. The bottom protective plate (100) is connected to the second protruding end face, and an accommodation space is formed between the bottom protective plate and the first protruding end face. The seal ring (400) is engaged in the accommodation space.

COOLING MEMBER, BATTERY PACK, AND ELECTRIC DEVICE

NºPublicación:  WO2025232069A1 13/11/2025
Solicitante: 
EVE ENERGY CO LTD [CN]
\u60E0\u5DDE\u4EBF\u7EAC\u9502\u80FD\u80A1\u4EFD\u6709\u9650\u516C\u53F8
WO_2025232069_PA

Resumen de: WO2025232069A1

The present application provides a cooling member and a battery pack. The cooling member comprises: a cooling bottom plate used for supporting the bottom of each battery cell; and a cooling side plate bendably connected to one side of the cooling bottom plate, used for abutting against and being in thermally conductive connection with one side of each battery cell, wherein the cooling side plate comprises a flow channel portion and a buffer portion; the flow channel portion is provided with one or more cooling flow channels, and each cooling flow channel is used for flow of a cooling medium; and the buffer portion is provided with a buffer cavity, and the buffer cavity extends in the length direction of the cooling side plate.

COMPOSITE PHOSPHATE-BASED POSITIVE ELECTRODE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF

NºPublicación:  WO2025232043A1 13/11/2025
Solicitante: 
SHENZHEN DYNANONIC CO LTD [CN]
\u6DF1\u5733\u5E02\u5FB7\u65B9\u7EB3\u7C73\u79D1\u6280\u80A1\u4EFD\u6709\u9650\u516C\u53F8
WO_2025232043_PA

Resumen de: WO2025232043A1

The present invention belongs to the technical field of battery materials, and particularly relates to a composite phosphate-based positive electrode material, and a preparation method therefor and the use thereof. The composite phosphate-based positive electrode material comprises a phosphate-based active core, wherein the outer surface of the phosphate-based active core is sequentially coated with a carbon coating layer, a nitrogen-doped carbon coating layer and a nitrogen-phosphorus co-doped carbon coating layer from inside to outside, wherein the carbon coating layer can improve the electronic and ionic conductivity of the composite positive electrode material, and optimize the particle size and morphology of the composite positive electrode material. The nitrogen-doped carbon coating layer improves the consistency and integrity of coating; and nitrogen-atom-doped carbon further enhances the electronic conductivity and lithium-ion diffusion of the carbon coating layer. Electron-rich clouds of P and N atoms in the nitrogen-phosphorus co-doped carbon coating layer can provide a rich conductive network, mutual contact is formed among different particles to form a series network, thus promoting the interfacial electron transport of the composite material during a charging and discharging process, and improving the cycling and rate performance of the composite phosphate-based positive electrode material during the charging and discharging process.

BATTERY CELL, BATTERY AND ELECTRIC DEVICE

NºPublicación:  WO2025232272A1 13/11/2025
Solicitante: 
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
\u5B81\u5FB7\u65F6\u4EE3\u65B0\u80FD\u6E90\u79D1\u6280\u80A1\u4EFD\u6709\u9650\u516C\u53F8
WO_2025232272_A1

Resumen de: WO2025232272A1

Provided in the present application are a battery cell, a battery and an electric device. The battery cell comprises a positive electrode sheet, a negative electrode sheet and an electrolyte, wherein the negative electrode sheet comprises a negative electrode current collector and a negative electrode active layer on at least one surface of the negative electrode current collector; the negative electrode active material of the negative electrode active layer comprises graphite and a silicon-based material; and the specific surface area of the silicon-based material is S1, and the specific surface area of the graphite is S2, where S1≤6 m2/g, and S2≤10 m2/g. When the specific surface areas of the silicon-based material and the graphite are within the above ranges, electron distribution during charging can become more uniform, which can reduce the polarization of the battery cell and is thus conducive to improving the rapid charging performance of the battery cell.

LIQUID COOLING STRUCTURE AND BATTERY PACK

NºPublicación:  WO2025232060A1 13/11/2025
Solicitante: 
EVE ENERGY CO LTD [CN]
\u60E0\u5DDE\u4EBF\u7EAC\u9502\u80FD\u80A1\u4EFD\u6709\u9650\u516C\u53F8
WO_2025232060_PA

Resumen de: WO2025232060A1

Disclosed in the present application are a liquid cooling structure and a battery pack. The liquid cooling structure comprises: a support plate, the support plate being used for supporting battery cells; and a vertical plate vertically arranged with the support plate, the vertical plate comprising a body and a plurality of telescopic ribs arranged in the body. A liquid cooling flow channel allowing a liquid coolant to circulate is formed in the body, the plurality of telescopic ribs are arranged in the liquid cooling flow channel at intervals, and each telescopic rib is connected between two opposite side walls of the liquid cooling flow channel so as to divide the liquid cooling flow channel into a plurality of sub-flow channels.

DRY-PROCESSED ELECTRODE SHEET AND PREPARATION METHOD THEREFOR, AND BATTERY

NºPublicación:  WO2025232005A1 13/11/2025
Solicitante: 
NANTONG MORLUS TECH COMPANY LIMITED [CN]
\u5357\u901A\u5E02\u61CB\u7565\u79D1\u6280\u6709\u9650\u516C\u53F8
WO_2025232005_PA

Resumen de: WO2025232005A1

In order to solve the problem of existing battery electrode sheets not being compatible with active materials having relatively small particle sizes (D50≤5 μm) in a dry process, a dry-processed electrode sheet and a preparation method therefor, and a battery are provided. The dry-processed electrode sheet comprises a current collector and an active material layer laminated on the current collector, wherein the active material layer comprises an active material, a conductive agent and a binder, the conductive agent comprises a one-dimensional conductive agent and a two-dimensional conductive agent, the mass percentage content of the binder in the active material layer is δ, and δ≤5%.

BATTERY AND ELECTRIC DEVICE

NºPublicación:  WO2025232010A1 13/11/2025
Solicitante: 
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
\u5B81\u5FB7\u65F6\u4EE3\u65B0\u80FD\u6E90\u79D1\u6280\u80A1\u4EFD\u6709\u9650\u516C\u53F8
WO_2025232010_PA

Resumen de: WO2025232010A1

A battery (1000) and an electric device. The battery (1000) comprises: a plurality of battery packs (10) arranged in a first direction (F1), each battery pack (10) comprising a plurality of battery cells (11) arranged in a second direction (F2), the first direction (F1) intersecting with the second direction (F2); and a heat exchange member (20) comprising a continuously extending bent section (21) comprising a plurality of first heat exchange segments (211) and at least one second heat exchange segment (212), the first heat exchange segments (211) extending in the second direction (F2), the plurality of first heat exchange segments (211) being arranged spaced apart in the first direction (F1), and the at least one second heat exchange segment (212) sequentially connecting and communicating with the plurality of first heat exchange segments (211). The plurality of first heat exchange segments (211) and the plurality of battery packs (10) are alternately stacked in the first direction (F1), and the second heat exchange segment (212) is stacked with the plurality of battery cells (11) of the same battery pack (10) in the second direction (F2).

BATTERY MANAGEMENT SYSTEM FIRE MONITORING METHOD AND APPARATUS, ELECTRONIC DEVICE, AND STORAGE MEDIUM

NºPublicación:  WO2025232091A1 13/11/2025
Solicitante: 
SHENZHEN CLOU ELECTRONICS CO LTD [CN]
\u6DF1\u5733\u5E02\u79D1\u9646\u7535\u5B50\u79D1\u6280\u80A1\u4EFD\u6709\u9650\u516C\u53F8
WO_2025232091_A1

Resumen de: WO2025232091A1

Disclosed in the present application are a battery management system fire monitoring method and apparatus, an electronic device, and a storage medium. The method comprises: acquiring battery cell temperature data and battery cell voltage data of each battery module in a target battery management system (S10); calculating a temperature rise rate of battery cells of a corresponding battery module on the basis of the battery cell temperature data, and calculating a voltage drop of the battery cells of the corresponding battery module on the basis of the voltage data (S20); determining whether the temperature rise rate exceeds a preset temperature rise rate threshold range, and whether the voltage drop exceeds a preset voltage drop threshold range (S30); and if the temperature rise rate exceeds the preset temperature rise rate threshold range and the voltage drop exceeds the preset voltage drop threshold range, sending corresponding thermal runaway early warning data to a corresponding battery fire protection system (S40).

BATTERY CELL, BATTERY AND ELECTRIC DEVICE

NºPublicación:  WO2025232011A1 13/11/2025
Solicitante: 
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
\u5B81\u5FB7\u65F6\u4EE3\u65B0\u80FD\u6E90\u79D1\u6280\u80A1\u4EFD\u6709\u9650\u516C\u53F8
WO_2025232011_PA

Resumen de: WO2025232011A1

A battery cell (10), a battery (100) and an electric device. The battery cell (10) comprises a casing (1), an electrode assembly and binding members (2). The casing (1) has a cavity, and the electrode assembly is arranged in the cavity. The binding members (2) surround at least part of the casing (1) to provide an expansion binding force to the casing (1), thereby restraining the deformation of the casing (1) during thermal runaway of the battery cell (10); in addition, the overall structural strength of the battery cell (10) can also be improved, thereby reducing the risk of the casing (1) rupturing due to a rapid increase in the air pressure in the cavity, and improving the reliability of the battery cell (10).

BATTERY AND ELECTRICAL DEVICE

NºPublicación:  WO2025232009A1 13/11/2025
Solicitante: 
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
\u5B81\u5FB7\u65F6\u4EE3\u65B0\u80FD\u6E90\u79D1\u6280\u80A1\u4EFD\u6709\u9650\u516C\u53F8
WO_2025232009_PA

Resumen de: WO2025232009A1

Provided in the present application are a battery (100) and an electrical device. The battery (100) comprises a battery module (20), a housing (10), an output electrode base (30) and a heat conduction structure (40); an output electrode (50) is electrically connected to the battery module (20); the housing (10) is provided with an accommodating cavity (101); the battery module (20) is accommodated within the accommodating cavity (101); the output electrode base (30) is arranged on the housing (10); a connection end (51) of the output electrode (50) is arranged on the output electrode base (30); the heat conduction structure (40) is connected to the output electrode base (30) and the housing (10); the side of the output electrode base (30) facing the housing (10) is provided with an accommodating part (31); at least part of the heat conduction structure (40) is accommodated inside the accommodating part (31). The battery (100) provided in the embodiments of the present application uses the heat conduction structure (40) for contact heat conduction with the output electrode base (30), so as to improve the efficiency of heat conduction from the output electrode base (30) to the housing (10).

CYLINDRICAL BATTERY CELL, BATTERY, ELECTRICAL APPARATUS AND MANUFACTURING METHOD FOR ELECTRODE ASSEMBLY

NºPublicación:  WO2025232040A1 13/11/2025
Solicitante: 
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
\u5B81\u5FB7\u65F6\u4EE3\u65B0\u80FD\u6E90\u79D1\u6280\u80A1\u4EFD\u6709\u9650\u516C\u53F8
WO_2025232040_PA

Resumen de: WO2025232040A1

The present application belongs to the technical field of batteries, and provides a cylindrical battery cell, a battery, an electrical apparatus and a manufacturing method for an electrode assembly. The cylindrical battery cell comprises an electrode assembly, the electrode assembly comprising a first electrode sheet wound into a multi-layer spiral structure. The first electrode sheet comprises a first main body part and first tabs located at one end of the first main body part in the extending direction of a winding axis, a channel being formed between first tabs on any two adjacent layers. Each first tab comprises a first blocking part, the first blocking part being used for blocking the channel; the first blocking part comprises an indent group provided on the first tab, the indent group comprising a plurality of recessed parts which are successively arranged in the extending direction of the winding axis and are recessed in the same direction. The first blocking parts block the channels, so as to stop chippings produced during a flattening process, thus reducing the probability of the chippings entering the electrode assembly via the channels to a certain extent.

WINDING DEVICE AND METHOD FOR PRODUCING BATTERY CELLS

NºPublicación:  WO2025232028A1 13/11/2025
Solicitante: 
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
\u5B81\u5FB7\u65F6\u4EE3\u65B0\u80FD\u6E90\u79D1\u6280\u80A1\u4EFD\u6709\u9650\u516C\u53F8
WO_2025232028_PA

Resumen de: WO2025232028A1

A winding device (100) and a method for producing battery cells (310). The winding device (100) is used for producing an electrode assembly (200). The winding device (100) comprises: first unwinding mechanisms (10) used for unwinding a cathode electrode sheet (220), a first separator (231) and an anode electrode sheet (210); a second unwinding mechanism (20) used for unwinding a second separator (232); a composite mechanism (30) arranged downstream from the first unwinding mechanisms (10) and used for combining the cathode electrode sheet (220), the first separator (231) and the anode electrode sheet (210) to form a composite sheet (240), wherein the first separator (231) is located between the anode electrode sheet (210) and the cathode electrode sheet (220); an edge sealing mechanism (40) arranged downstream from the composite mechanism (30) and the second unwinding mechanism (20) and used for performing edge sealing connection on edges of the second separator (232) and the first separator (231) of the composite sheet (240) to obtain an unwound electrode assembly (200); and a winding mechanism (60) arranged downstream from the edge sealing mechanism (40) and used for winding the unwound electrode assembly (200).

BATTERY AND ELECTRIC DEVICE

NºPublicación:  WO2025232029A1 13/11/2025
Solicitante: 
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
\u5B81\u5FB7\u65F6\u4EE3\u65B0\u80FD\u6E90\u79D1\u6280\u80A1\u4EFD\u6709\u9650\u516C\u53F8
WO_2025232029_PA

Resumen de: WO2025232029A1

The present application relates to the technical field of batteries. Provided are a battery and an electric device. The battery comprises a case, battery cells, a bus component, and a first heat exchange assembly, wherein an accommodating space is formed in the case; a plurality of battery cells are provided, and the plurality of battery cells are accommodated in the accommodating space; the bus component is electrically connected between the battery cells, and a spacing space is formed between the bus component and the inner wall surface of the case; and the first heat exchange assembly is disposed in the spacing space and is thermally conductively connected to each of the bus component and the inner wall surface of the case. The present application aims to improve the heat dissipation efficiency of the battery and enhance the heat dissipation capability of the battery.

HOT-PRESSING DEVICE

NºPublicación:  WO2025231981A1 13/11/2025
Solicitante: 
WUXI LEAD INTELLIGENT EQUIPMENT CO LTD [CN]
\u65E0\u9521\u5148\u5BFC\u667A\u80FD\u88C5\u5907\u80A1\u4EFD\u6709\u9650\u516C\u53F8
WO_2025231981_PA

Resumen de: WO2025231981A1

The present application relates to a hot-pressing device. The hot-pressing device comprises a hot-pressing driving mechanism, a first hot-pressing mechanism, a second hot-pressing mechanism, a film clamping mechanism, and a jacking mechanism. Before battery cells are transferred, first, a support assembly can be driven to jack up a thin film locally, so as to form a transfer supporting surface above a second hot-pressing plate. A gripper first places the battery cells on the transfer supporting surface that may only be in partial contact with the battery cells, allowing the gripper to remain suspended, so that the gripper can be retracted by releasing the gripper. Then, the jacking mechanism retracts to flatten the thin film, and the battery cells are stably supported on the thin film. As the hot-pressing driving mechanism drives a first hot-pressing plate and the second hot-pressing plate to approach each other, the first hot-pressing plate can enable the thin film and the battery cells supported on the thin film to be pressed against the second hot-pressing plate. Thus, during the transfer of battery cells to the second hot-pressing plate, transferring using a thin film can prevent the battery cells from shaking or tipping over, thereby realizing stable placement of the battery cells.

EXPLOSION-PROOF VALVE AND BATTERY

NºPublicación:  WO2025232030A1 13/11/2025
Solicitante: 
ZHEJIANG GEELY HOLDING GROUP CO LTD [CN]
VIRIDI E MOBILITY TECH NINGBO CO LTD [CN]
ZHEJIANG ZEEKR INTELLIGENT TECH CO LTD [CN]
\u6D59\u6C5F\u5409\u5229\u63A7\u80A1\u96C6\u56E2\u6709\u9650\u516C\u53F8,
\u5A01\u777F\u7535\u52A8\u6C7D\u8F66\u6280\u672F\uFF08\u5B81\u6CE2\uFF09\u6709\u9650\u516C\u53F8,
\u6D59\u6C5F\u6781\u6C2A\u667A\u80FD\u79D1\u6280\u6709\u9650\u516C\u53F8
WO_2025232030_PA

Resumen de: WO2025232030A1

An explosion-proof valve and a battery. The explosion-proof valve comprises a body (100), wherein the body (100) is provided with a tear line (200) and a relief groove (300), wherein the tear line (200) and the relief groove (300) are both racetrack-shaped; the tear line (200) comprises a deep groove section (220) and a shallow groove section (210); and the depth of the shallow groove section (210) is D, the distance between the bottom wall of the shallow groove section (210) and the bottom wall of the body (100) is T1, the distance between the bottom wall of the deep groove section (220) and the bottom wall of the body (100) is T2, and the distance between the bottom wall of the relief groove (300) and the bottom wall of the body (100) is T3, where D>0,T3>T2, and T1>T2. In the explosion-proof valve, the arrangement of the relief groove (300) can prevent fatigue cracking and failure of the tear line (200) due to excessive stress during cell production and pack assembly and under vehicle vibration conditions; the tear line (200) can fracture and open when the body (100) is subjected to pressure exceeding a preset pressure value, thereby ensuring pressure relief in a timely manner when the internal pressure of the cell abnormally increases due to thermal runaway; and the tear line (200) is in a racetrack shape and comprises a deep groove section (220) and a shallow groove section (210), which can effectively reduce the set opening pressure of the explosion-proof valve

INTERMEDIATE LAYER FOR NEGATIVE ELECTRODE INTERFACE MODIFICATION OF SULFIDE SOLID-STATE LITHIUM BATTERY AND PREPARATION METHOD

NºPublicación:  WO2025231978A1 13/11/2025
Solicitante: 
SHANGHAI FIRM LITHIUM NEW ENERGY TECH CO LTD [CN]
\u4E0A\u6D77\u5C79\u9502\u65B0\u80FD\u6E90\u79D1\u6280\u6709\u9650\u516C\u53F8
WO_2025231978_A1

Resumen de: WO2025231978A1

An intermediate layer for negative electrode interface modification of a sulfide solid-state lithium battery and a preparation method. The preparation method comprises the following steps: S1, mixing graphene, a boron-containing compound, and an adhesive solution to form a suspension; and S2, carrying out film-forming treatment on the suspension to obtain a graphene-boron-containing compound intermediate layer. The graphene has a skeletal support structure, so that the electronic conductivity of the intermediate layer can be effectively improved, thereby improving the rate capability of an all-solid-state battery. The boron-containing compound facilitates formation of a lithium-boron alloy during lithium-ion conduction, thereby effectively providing capacity for the negative electrode, avoiding reduction of the energy density of the battery caused by the implantation of the intermediate layer.

BATTERY PACK

NºPublicación:  WO2025232003A1 13/11/2025
Solicitante: 
EVE ENERGY CO LTD [CN]
\u60E0\u5DDE\u4EBF\u7EAC\u9502\u80FD\u80A1\u4EFD\u6709\u9650\u516C\u53F8
WO_2025232003_PA

Resumen de: WO2025232003A1

The present application provides a battery pack, comprising at least two layers of battery cell modules and a liquid cooling assembly. A liquid cooling assembly is arranged between every two adjacent layers of battery cell modules; the liquid cooling assembly comprises a first plate, a second plate and a third plate, the second plate being located between the first plate and the third plate, a first cooling flow channel being formed between the first plate and the second plate, a second cooling flow channel being formed between the second plate and the third plate, and the first cooling flow channel and the second cooling flow channel are communicated or not communicated.

GAS SAMPLING DEVICE, BATTERY CELL, BATTERY AND ELECTRICAL DEVICE

NºPublicación:  WO2025232026A1 13/11/2025
Solicitante: 
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
\u5B81\u5FB7\u65F6\u4EE3\u65B0\u80FD\u6E90\u79D1\u6280\u80A1\u4EFD\u6709\u9650\u516C\u53F8
WO_2025232026_PA

Resumen de: WO2025232026A1

A gas sampling device (200), a battery cell (10), a battery (2) and an electrical device. The gas sampling device (200) comprises a gas sampling body (210) and a channel plug (220), wherein the gas sampling body (210) is provided with a gas sampling channel (211) running through the gas sampling body (210), two ends of the gas sampling channel (211) being a first opening (2111) and a second opening (2112), respectively; the gas sampling body (210) is configured to connect to a battery casing (100), such that the gas sampling channel (211) is in communication with the interior of the battery casing (100) through the first opening (2111); and the channel plug (220) is connected to the gas sampling body (210) to seal the second opening (2112), and the channel plug (220) allows a gas sampling member to puncture therethrough into the gas sampling channel (211), so as to perform gas sampling within the gas sampling channel (211). Thus, during a gas sampling operation and when no gas sampling operation is required, the channel plug (220) is used to mitigate the discharge of gas from inside the gas sampling channel (211) through the second opening (2112), thereby reducing the risk of affecting the sealing tightness of the battery casing (100), and reducing the risk of damage to the operating performance of the battery (2).

ELECTRODE SHEET MANUFACTURING METHOD AND COATING DEVICE

NºPublicación:  WO2025231959A1 13/11/2025
Solicitante: 
ZHEJIANG LIWINON ENERGY TECH CO LTD [CN]
\u6D59\u6C5F\u9502\u5A01\u80FD\u6E90\u79D1\u6280\u6709\u9650\u516C\u53F8
WO_2025231959_PA

Resumen de: WO2025231959A1

An electrode sheet manufacturing method and a coating device. The electrode sheet manufacturing method comprises the following steps: coating a first active material on a surface to be coated of a current collector so as to form a first wide layer; coating a second active material on the surface to be coated so as to form a narrow layer; and coating a third active material on the surface to be coated so as to form a second wide layer, wherein the first wide layer, the narrow layer, the second wide layer, and the surface to be coated jointly define a tab welding area, the first wide layer, the narrow layer, and the second wide layer are sequentially connected in a first direction, the width of the narrow layer is less than that of the first wide layer, and the width of the narrow layer is less than that of the second wide layer. The method forms the tab welding area by means of coating, without the need to use a laser cleaning process to form the tab welding area, thereby facilitating reduction of the manufacturing cost of electrode sheets.

ELECTROLYTE, AND PREPARATION METHOD THEREFOR AND USE OF ELECTROLYTE

NºPublicación:  WO2025231951A1 13/11/2025
Solicitante: 
SHENZHEN INX TECH CO LTD [CN]
\u6DF1\u5733\u6B23\u754C\u80FD\u6E90\u79D1\u6280\u6709\u9650\u516C\u53F8
WO_2025231951_PA

Resumen de: WO2025231951A1

The present application provides an electrolyte, and a preparation method therefor and a use of an electrolyte. By mass percentage, the electrolyte comprises 16.5%-21% lithium hexafluorophosphate, 0.5%-2% lithium difluoro(oxalato)borate, 0.1%-2% sodium hexafluorophosphate, and 1%-2% pyrrole ionic liquids, and the balance is a solvent. The use of the electrolyte in a lithium battery can improve the cycle performance and the safety performance of the lithium battery.

MOLYBDENUM-BASED COMPOUND NANOSPHERE-MODIFIED GRAPHITE CARBON MATERIAL, PREPARATION METHOD THEREFOR AND USE THEREOF

NºPublicación:  WO2025231919A1 13/11/2025
Solicitante: 
PKU HKUST SHENZHEN HONGKONG INST [CN]
\u6DF1\u6E2F\u4EA7\u5B66\u7814\u57FA\u5730\uFF08\u5317\u4EAC\u5927\u5B66\u9999\u6E2F\u79D1\u6280\u5927\u5B66\u6DF1\u5733\u7814\u4FEE\u9662\uFF09
WO_2025231919_PA

Resumen de: WO2025231919A1

Disclosed in the present invention are a molybdenum-based compound nanosphere-modified graphite carbon material, a preparation method and the use in positive electrodes of lithium-sulfur batteries. The molybdenum-based compound modified graphite carbon material is defined as MoX-GC, where GC is a highly graphitized carbon matrix, and MoX is one or any two of MoO3, MoN, MoS2 and Mo2C, the percentage of the mass of total metallic elements to the mass of all of elements being 0.1%-30%. The preparation method comprises: uniformly dispersing a commercial carbon-based material in an aqueous solution; preparing a molybdenum oxide/molybdenum sulfide modified carbon-based material; under a hydrothermal condition, self-assembling a molybdenum oxide/molybdenum sulfide on a carbon matrix; and, in an inert gas atmosphere, obtaining highly graphitized carbon-based materials modified by different molybdenum-based compounds. The present invention is low-cost, simple and easy to implement, and has a wide range of application. The dual functions of sulfur fixation and catalysis exhibited by different molybdenum-based compounds significantly enhance the reaction kinetics of lithium-sulfur batteries, and are expected to exhibit ultra-stable cycle performance at high loading capacities.

PREPARATION METHOD FOR CARBON NANOTUBE-SODIOPHILIC METAL ANODE-FREE SODIUM METAL BATTERY ELECTRODE MATERIAL AND USE THEREOF

NºPublicación:  WO2025231782A1 13/11/2025
Solicitante: 
KUNMING UNIV OF SCIENCE AND TECHNOLOGY [CN]
\u6606\u660E\u7406\u5DE5\u5927\u5B66
WO_2025231782_A1

Resumen de: WO2025231782A1

A preparation method for a carbon nanotube-sodiophilic metal anode-free sodium metal battery electrode material. The preparation method comprises the following steps: modifying the carbon nanotubes by using a dielectric barrier plasma device; mixing and stirring the modified carbon nanotubes with a sodiophilic metal salt to obtain a precursor slurry; and drying the precursor slurry, placing the precursor slurry into a tubular furnace after the drying, and heating same for reaction by introducing a reducing gas to obtain a carbon nanotube-sodiophilic metal anode-free sodium metal battery electrode material. The prepared electrode material has a stable structure, excellent conductivity, and excellent sodiophilicity, and can be applied to anode-free sodium metal battery electrode materials. The entire preparation process is controllable, with a short synthesis cycle and simple operation.

SECONDARY BATTERY, MANUFACTURING METHOD FOR ELECTRODE ASSEMBLY, AND ELECTRONIC DEVICE

NºPublicación:  WO2025231629A1 13/11/2025
Solicitante: 
NINGDE AMPEREX TECH LIMITED [CN]
\u5B81\u5FB7\u65B0\u80FD\u6E90\u79D1\u6280\u6709\u9650\u516C\u53F8
WO_2025231629_PA

Resumen de: WO2025231629A1

Disclosed in the present application are a secondary battery, a manufacturing method for an electrode assembly, and an electronic device. The secondary battery comprises an electrode assembly and a first tab, wherein the electrode assembly comprises a first electrode sheet, a second electrode sheet, and a separator arranged between the first electrode sheet and the second electrode sheet. The first tab is connected to the outermost ring of the first electrode sheet, and the relative position between the first tab and the electrode assembly is fixed. In the winding direction of the electrode assembly, the electrode sheet at the outermost ring of the electrode assembly is the first electrode sheet, and the outermost ring of the first electrode sheet is partially laminated in a first direction to form a first laminated portion, the first direction being the lamination direction of the second electrode sheet and the separator that are adjacent to the first laminated portion; and in the winding direction of the electrode assembly, the shortest distance between a first junction position and a second junction position on the first electrode sheet is P, a first portion is formed therefrom, and P satisfies 0 mm≤P≤6 mm; and the first laminated portion is disposed between the first tab and the first portion.

SECONDARY BATTERY, MANUFACTURING METHOD FOR ELECTRODE ASSEMBLY, AND ELECTRONIC DEVICE

Nº publicación: WO2025231627A1 13/11/2025

Solicitante:

NINGDE AMPEREX TECH LIMITED [CN]
\u5B81\u5FB7\u65B0\u80FD\u6E90\u79D1\u6280\u6709\u9650\u516C\u53F8

WO_2025231627_PA

Resumen de: WO2025231627A1

The present application relates to a secondary battery, a manufacturing method for an electrode assembly, and an electronic device. The secondary battery comprises an electrode assembly, the electrode assembly comprising a first electrode sheet, a second electrode sheet and a separator, wherein the separator is arranged between the first electrode sheet and the second electrode sheet, and the first electrode sheet, the second electrode sheet and the separator are stacked and wound to form a wound structure; the first electrode sheet comprises a first current collector and a first active material layer, the first active material layer being disposed on at least one surface of the first current collector; the first current collector comprises a first surface and a second surface, which are arranged opposite each other in the direction of the thickness of the first current collector; and in the winding direction of the electrode assembly, the first current collector comprises a first empty foil region on the first surface that is not provided with a first active material layer, a first coated region on the first surface that is provided with a first active material layer, and a second coated region on the first surface that is provided with a first active material layer, the first empty foil region being located between the first coated region and the second coated region.

traducir