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SECONDARY BATTERY AND ELECTRONIC DEVICE

Resumen de: WO2026144228A1

Disclosed in the present application are a secondary battery and an electronic device. In the winding direction, a first electrode sheet comprises a first starting end. In the direction of thickness of the first electrode plate, an electrode sheet adjacent to the first starting end is a second electrode sheet. A first adhesive layer is disposed on a surface of the first electrode sheet, and the first adhesive layer is arranged between the first starting end and the second electrode sheet in the direction of thickness of the first electrode sheet. The first adhesive layer comprises a first portion, a second portion and a third portion, wherein the second portion comprises a first segment and a second segment, and the first portion, the first segment, the second segment and the third portion are sequentially connected; and the first portion and the third portion are bonded to the first electrode sheet, and in the winding direction, the first portion is close to the first starting end. In the direction of thickness of the first electrode sheet, the first portion, the first segment and the second segment are stacked, and the second portion covers the first starting end; and in the direction opposite the winding direction, the second portion extends beyond the first electrode sheet from the first starting end. The occurrence of short circuits can be reduced, and the safety performance of the secondary battery can be improved.

COMPOSITE SEPARATOR, PREPARATION METHOD THEREFOR, AND USE THEREOF

Resumen de: WO2026144520A1

The present application relates to the technical field of separators, and provides a composite separator, a preparation method therefor, and a use thereof. The composite separator comprises a porous layer. The porous layer comprises an organic polymer resin, inorganic particles, and polymer fibers, the polymer fibers being polymer fibers modified with hydrophilic groups. In the present application, by adding polymer fibers into the porous layer, mechanical support is provided to the porous layer, such that the separator is resistant to bending, thereby improving the mechanical strength of the separator. In addition, hydrogen bond interactions are formed between the hydrophilic groups modified on the polymer fibers and the inorganic particles. Considering also the strong interactions between the polymer fibers and the organic polymer resin, this arrangement helps to fix the inorganic particles within the organic polymer resin, thereby effectively reducing detachment of inorganic particles from the porous layer. As a result, the separator has good air tightness, which helps to maintain the stability and safety of the separator.

BATTERY DEVICE, ENERGY STORAGE DEVICE, ENERGY STORAGE SYSTEM AND CHARGING NETWORK

Resumen de: WO2026144148A1

Disclosed in the present application are a battery device, an energy storage device, an energy storage system and a charging network. The battery device comprises a plurality of battery cells, an insulating member and a busbar component. Each battery cell is provided with an electrode terminal on one side in a first direction. The insulating member comprises an insulating main body, a first limiting portion and a second limiting portion, wherein the insulating main body is located on one side of the plurality of battery cells in the first direction, and the first limiting portion and the second limiting portion protrude from the side of the insulating main body that is away from the battery cells in the first direction. The second limiting portion and the busbar component are arranged in a second direction, so as to limit the range of rotation of the busbar component around the first limiting portion, thereby improving the stability of the busbar component, and improving the connection reliability between the busbar component and the electrode terminals. In addition, the second limiting portion and the corresponding insulating main body occupy less space on the side of the busbar component close to the electrode terminals in the first direction, or even require no corresponding space at all, thereby facilitating an increase in the connection area between the electrode terminals and the busbar component, further improving the connection reliability between the two.

EXPLOSION-PROOF VENTING VALVE DEVICE

Resumen de: US20260196645A1

An explosion-proof venting valve for a battery pack includes a top cover having a cover hole, a valve body removably mounted to the top cover, the valve body including a first mounting portion and a second mounting portion, a membrane being water-impermeable and gas-permeable, the membrane interposed between the valve body and the top cover, an intake valve assembly mounted into the first mounting portion in a first mounting direction, a venting valve assembly mounted into the second mounting portion in a second mounting direction opposite to the first mounting direction, and a filter assembly removably mounted to the valve body. A battery pack including a battery pack housing and the explosion-proof venting valve mounted to the battery housing is also provided.

SOLAR BATTERY SYSTEMS, METHODS AND INTERFACE MODULES

Resumen de: AU2024407214A1

A solar battery system, method and interface module is provided. The system comprises: a vehicle battery assembly that has been removed from an electric vehicle; a solar inverter, coupled to one or more solar panels, and configured to power one or more electrical items; and a battery interface module, intermediate the control interface of the solar inverter and the battery management system of the vehicle battery assembly. The vehicle battery assembly including a plurality of cells and a battery management system. The solar inverter includes a DC battery output, coupled to the cells of the vehicle battery assembly, and a control interface, configured to send and receive control messages. The battery interface module is configured to receive messages from the control interface of the solar inverter in a first format, and send messages to the battery management system of the vehicle battery assembly in a second format and according to the received messages from the control interface of the solar inverter.

SYSTEMS AND METHODS FOR PRODUCING A LITHIUM FILM

Resumen de: AU2024402349A1

A method, an apparatus, and a system for producing a lithium film are described. The apparatus/system may include a chamber having an inlet and an outlet, the chamber configured for intaking a fluid via the inlet and removing the fluid via the outlet; an anode; a holder configured to mount a substrate, the holder configured as a cathode; and a power source configured to supply a current across the anode and the cathode. In various embodiments, the inlet is oriented with respect to a surface of the substrate such that the fluid flowing through the inlet and arriving at the surface of the substrate is greater than 500 cm3 per minute or at a flow velocity greater than 900 cm per minute, and lithium ions contained within the fluid are electrochemically reduced and plated to form a lithium metal film on the surface of the substrate.

NEGATIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREFOR, NEGATIVE ELECTRODE SHEET, LITHIUM-ION BATTERY, AND ELECTRIC DEVICE

Resumen de: AU2025215476A1

A negative electrode active material and a preparation method therefor, a negative electrode sheet, a lithium-ion battery, and an electric device. The lithium-ion battery comprises one or more battery cells (5), the battery cell (5) comprises a negative electrode sheet, the negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer located on at least one surface of the negative electrode current collector, and the negative electrode film layer comprises a negative electrode active material. The negative electrode active material comprises an inner core and a coating layer located on at least part of the surface of the inner core, wherein the inner core comprises graphite, and the coating layer comprises hard carbon; and in the cumulative distribution curve of the R value of the negative electrode active material obtained in the area scanning mode of a laser microscopic confocal Raman spectrometer, from the lower limit, the R value of R50 having a cumulative distribution of 50% is 0.15-0.40. The negative electrode active material can make the battery have both a high energy density, and good dynamic performance and cycle performance.

ANODE MATERIAL, ANODE SHEET AND SECONDARY BATTERY

Resumen de: US20260196484A1

0000 An anode material contains nitrogen, a carbon matrix and an active substance. The carbon matrix has pores, into which at least part of the active substance is disposed. The anode material has a first region having a depth of less than or equal to 200 nm from an outer surface of the anode material and a second region having a depth of greater than or equal to 1000 nm from the outer surface of the anode material. The first region contains α atomic percent of nitrogen, and the second region contains β atomic percent of nitrogen, where α<β, a deposition parameter of the active substance is defined as γ, and γ≥0.86. In the anode material, a relatively large part of the active substance is distributed in the pores of the carbon matrix, which reduces gas production of the anode material, and facilitates the conductive performance of the carbon matrix.

LITHIUM-ION SECONDARY BATTERY AND ELECTRIC DEVICE

Resumen de: WO2026144276A1

A negative electrode sheet of a lithium-ion secondary battery comprises: a negative electrode current collector (100); and a negative electrode active material layer, located on at least one side of the negative electrode current collector, wherein the negative electrode active material layer comprises a first negative electrode active material layer (110) and a second negative electrode active material layer (120) which are stacked, and the second negative electrode active material layer (120) is located on the side of the first negative electrode active material layer (110) distant from the negative electrode current collector (100). The first negative electrode active material layer (110) comprises a first negative electrode active material, and the second negative electrode active material layer (120) comprises a second negative electrode active material, wherein the numerical proportion of secondary particles in the first negative electrode active material is greater than the numerical proportion of primary particles in the first negative electrode active material, and the numerical proportion of secondary particles in the second negative electrode active material is greater than the numerical proportion of primary particles in the second negative electrode active material.

BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS

Resumen de: US20260196695A1

0000 A battery cell includes an electrode assembly and an insulating member. The insulating member includes a first insulating portion and a second insulating portion connected to each other. The first insulating portion covers a first end face of the electrode assembly, and the second insulating portion covers an outer peripheral face of the electrode assembly. The first insulating portion has a first surface facing away from the first end face and a second surface facing the first end face. The first surface and/or the second surface is provided with a protrusion, thereby improving the gravimetric energy density of the battery.

Positive Electrode and Lithium Secondary Battery Including the Same

Resumen de: US20260196518A1

A positive electrode including a positive electrode composite layer disposed on a current collector, the positive electrode composite layer including a positive electrode active material, carbon nanotubes, and carbon black. A ratio, (BETCB)/(BETCNT), of a BET surface area BETCB of the carbon black to a BET surface area BETCNT of the carbon nanotubes is between 1.0 and 3.4, and the carbon nanotubes have a number cumulative average particle size D50CNT ranging from 0.9 μm to 4.0 μm. A positional relationship between the carbon nanotubes and the carbon black within the positive electrode and connectivity with active material particles are excellent, and thus both ionic conductivity and electrical conductivity are improved. Accordingly, a lithium secondary battery offering superior resistance, improved lifespan, and price competitiveness is provided.

BATTERY CELL

Resumen de: WO2026144665A1

The present application relates to the technical field of batteries, in particular to a battery cell, comprising a cover plate, posts and connection members. The posts are mounted on the cover plate; each post is formed with a mounting recess and a mounting through hole which are sequentially communicated in a first preset direction, the mounting recess passing through the inner side of the post, and the mounting through hole passing through the outer side of the post; each connection member comprises first connection portions, second connection portions and a mounting protrusion portion which are sequentially connected, the first connection portions being located on the inner side of the cover plate close to electrode groups and being configured to connect tab clusters of the electrode groups, the second connection portions being mounted in the mounting recess, the mounting protrusion portion being mounted in the mounting through hole, and in the first preset direction, each second connection portion being formed with a welding area located on the outer side of the mounting protrusion portion. In the battery cell provided by the present application, the structures of connection pieces and the posts are redesigned, which helps to observe whether the connection pieces and the posts are mounted in place, simplifies the welding operation with lower requirements on workers, and also prevents welding spatters from entering the interior of the battery cell.

BATTERY TOP COVER AND BATTERY

Resumen de: WO2026144170A1

The present application relates to the technical field of battery production, and discloses a battery top cover and a battery. The battery top cover comprises a top cover body, a sensor module, a limiting member, and a sealing member. The top cover body is provided with a through hole. An accommodating cavity is formed between the limiting member and the top cover body. The limiting member is provided with a second limiting portion and an opening in communication with the accommodating cavity. The sensor module is provided with a sensor base and a first limiting portion provided on the sensor base. The sensor base is embedded into the accommodating cavity from the opening, so as to achieve a detachable connection between the sensor module and the top cover body, thereby facilitating subsequent implementation of maintenance and replacement. The first limiting portion and the second limiting portion cooperate with each other to prevent the sensor module and the limiting member from being easily loosened from each other. Furthermore, the sensor module is provided with an air intake hole in communication with the through hole, so as to acquire internal information of the battery. The sealing member is disposed between the sensor module and the top cover body.

ASSEMBLED BASE FOR PLACING SPRING MODULES, AND ELASTIC PAD

Resumen de: AU2024398032A1

An assembled base (1) for placing spring modules, comprising: unit plates (11) and connecting members (12) for connecting the unit plates (11). A plurality of connecting mating members (13) are arranged on the unit plates (11) at symmetrical positions, and the two connecting mating members (13) arranged at the symmetrical positions are rotationally symmetrical; each connecting member (12) comprises an operating member (121) and a limiting column (122) placed in an arc-shaped groove; the operating member (121) is used for driving the limiting column (122) to move between a first position and a second position relative to the arc-shaped groove; two limiting columns (122) are arranged, and an included angle of 180° is formed between the two limiting columns (122); when being located at the first position, the two limiting columns (122) are respectively located at the release ends (132) of the arc-shaped grooves in the two unit plates (11); and when being located at the second position, the two limiting columns (122) are respectively located at the limiting ends (131) of the arc-shaped grooves in the two unit plates (11), and are in limiting fit with the limiting ends (131) in a direction opposite to the direction where the limiting columns (122) are inserted into the arc-shaped grooves. An elastic pad, comprising a base (1) and spring modules (2), wherein the spring modules (2) are arranged on the base (1) in an array, and the base (1) is the assembled base (1).

ELECTRODE PREPARATION METHOD, ELECTRODE PREPARED THEREBY, ENERGY STORAGE DEVICE COMPRISING THE ELECTRODE AND ELECTRODE PRODUCTION SYSTEM

Resumen de: WO2026144187A1

The present invention relates to an electrode preparation method, an electrode prepared thereby, an energy storage device comprising the electrode and an electrode production system for implementing the method. The preparation method comprises: (a) providing a free-standing electrode film, which comprises a first side and a second side opposite to the first side, wherein the second side comprises a region to be deposited, on which a metal is deposited when in contact with an electrolyte solution for an electrodeposition reaction; (b) providing an electrolyte solution containing a salt of a metal to be deposited; and (c) bringing at least the region to be deposited on the second side of the free-standing electrode film into contact with the electrolyte solution, and performing an electrodeposition reaction in the region to be deposited, thereby depositing, on the second side, a current collector of the metal to be deposited, wherein the electrodeposition temperature is 0°C to 70°C. The electrode prepared by the method of the present invention enables an active material therein to possess a good initial discharge specific capacity, initial Coulombic efficiency and cycling performance.

Heat Dissipation Plate, Middle Frame, and Electronic Device

Resumen de: US20260197976A1

A heat dissipation plate includes a first cover, a second cover, a capillary structure, and a cooling medium. The second cover includes a middle region and an edge region disposed around the middle region, and the middle region includes a shaping region and an accommodation region connected to the shaping region. The edge region is fastened to the first cover, and the accommodation region of the middle region and the first cover are spaced from each other and enclose an accommodation cavity. The capillary structure is fastened to the first cover and located in the accommodation cavity, and the cooling medium is disposed in the accommodation cavity. The shaping region of the middle region is fastened to the first cover.

BATTERY CLUSTER, ASSEMBLY METHOD FOR BATTERY CLUSTER, AND ELECTRIC DEVICE

Resumen de: WO2026145768A1

Provided in the present application are a battery cluster, an assembly method for the battery cluster, and an electric device. The battery cluster comprises: a first battery pack, a second battery pack, a first cluster frame and a second cluster frame. The first battery pack and the second battery pack are stacked in a first direction. The first direction is the direction of height of the battery cluster. The first cluster frame is connected to the first battery pack, and the first cluster frame is configured to provide structural protection for the first battery pack and the second battery pack. The second cluster frame is connected to the second battery pack, and the second cluster frame is configured to provide structural protection for the first battery pack and the second battery pack. The battery cluster only comprises the first cluster frame and the second cluster frame, thereby reducing the volume of the battery cluster, reducing the weight of the battery cluster, and lowering the production costs and hoisting difficulty of the battery cluster.

POSITIVE ELECTRODE PLATE, ELECTROCHEMICAL APPARATUS, AND AN ELECTRONIC APPARATUS

Resumen de: US20260196504A1

A positive electrode plate includes a positive electrode current collector, a first coating layer, and a positive electrode material layer. The first coating layer is disposed on a surface of the positive electrode current collector, and the positive electrode material layer is disposed on a surface of the first coating layer facing away from the positive electrode current collector. The first coating layer includes a lithium-containing material and a conductive material. The lithium-containing material has a Dv99 of 500 nm to 1000 nm, and the lithium-containing material has a specific surface area of 5 m2/g to 50 m2/g.

CYLINDRICAL SECONDARY BATTERY AND ELECTRONIC DEVICE

Resumen de: WO2026144252A1

The present application provides a cylindrical secondary battery and an electronic device. The cylindrical secondary battery comprises an electrode assembly, the radius of a central hole of the electrode assembly is b mm, and the radius of the electrode assembly is a mm; the electrode assembly comprises a first electrode sheet, the first electrode sheet comprises a first current collector and a first material layer, and along the winding direction of the electrode assembly, the first material layer sequentially comprises a first region and a second region; along the radial direction of the electrode assembly, the distance between the first region and the winding center of the electrode assembly is c1 mm, 1.5b≤c1≤5.5b, and a plurality of first recesses are provided on the surface of the first region; and the distance between the second region and the winding center of the electrode assembly is c2 mm, 0.8a≤c2≤a, and a plurality of second recesses are provided on the surface of the second region. The present application facilitates reduction of the safety risks of collapse of an electrode sheet on an inner ring of the electrode assembly due to excessive pressing force and short circuits caused by breakage of an electrode sheet on an outer ring due to excessive tensile stress, and generation of burrs.

BATTERY CELL, BATTERY, AND POWER CONSUMING APPARATUS

Resumen de: US20260196688A1

A battery cell includes a housing, an electrode assembly, and an electrode terminal. The electrode assembly is accommodated in the housing. The electrode terminal is riveted on a wall portion, and the electrode terminal is electrically connected to the electrode assembly. The electrode terminal includes a flanged portion; the flanged portion is formed at an end of the electrode terminal close to the electrode assembly and located on a side of the wall portion facing the electrode assembly; a continuous connection surface is formed at an end of the electrode terminal facing away from the electrode assembly, and the connection surface is used for connecting to a busbar component. The electrode terminal is a structure riveted onto the wall portion from inside the housing, to enable the busbar component to directly connect to the continuous connection surface at the end of the electrode terminal.

PRESSURE RELIEF COMPONENT, BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: US20260196649A1

A pressure relief component, a battery cell, a battery, and an electric device. The pressure relief component is used for a battery cell; the pressure relief component is provided with at least two pressure relief notches, each pressure relief notch and connecting lines at the two ends of said notch enclosingly form a first region, the plurality of first regions are arranged at intervals, and a connecting line of at least one first region is located on the side of the first region near the center of the pressure relief component.

CELL STACK COOLING DEVICE AND BATTERY MODULE

Resumen de: WO2026144227A1

Disclosed in the present application are a cell stack cooling device and a battery module. The cell stack cooling device comprises a box, and an upper air guide member and a lower air guide member which are arranged opposite each other inside the box, wherein an accommodating space is formed inside the box, and the accommodating space is configured to hold cells; the upper air guide member is arranged in the accommodating space, an upper air duct is formed between the upper air guide member and the box, the upper air guide member is provided with an upper air opening, and the upper air duct, the upper air opening and the accommodating space are sequentially in communication with each other; and the lower air guide member is arranged on the side of the accommodating space opposite the upper air guide member, a lower air duct is formed between the lower air guide member and the box, the lower air guide member is provided with a lower air opening, the lower air duct, the lower air opening and the accommodating space are sequentially in communication with each other, an air inlet and an air outlet in communication with the outside are respectively formed at two opposite ends of the accommodating space, and the upper air duct and the lower air duct are both in communication with the air inlet.

CELL STRUCTURE AND BATTERY

Resumen de: WO2026143748A1

The present application relates to the technical field of batteries and discloses a cell structure and a battery. The cell structure comprises an anode sheet and a cathode sheet. The anode sheet comprises an anode foil and a plurality of anode tabs. The anode tabs are integrally connected to the anode foil, and the anode tabs are stacked in the direction of thickness of the cell structure. The cathode sheet comprises a cathode foil, a cathode tab and a coating layer. The cathode tab is welded to the cathode foil, the coating layer is disposed on at least one side of the cathode foil in the direction of thickness, and the width of the coating layer is equal to the width of the cathode foil. With the cell structure of the present application, most of the fast-charging performance of a battery can be retained, while the energy density of the battery is improved and the occupation of the internal space of the battery by tabs is reduced.

CYLINDRICAL SECONDARY BATTERY AND ELECTRONIC APPARATUS

Resumen de: WO2026144247A1

Provided in the present application are a cylindrical secondary battery and an electronic apparatus. The cylindrical secondary battery comprises an electrode assembly, the electrode assembly comprising a first electrode sheet, with the first electrode sheet comprising a first current collector and a first material layer, wherein the number of winding turns of the first material layer is N, with 15≤N≤70; and in a winding direction of the electrode assembly, the first material layer sequentially comprises a first region and a second region. The first region is located from the first turn to the 0.75N-th turn of the first material layer, and a plurality of first recesses are provided on the surface of the first region; and the second region is located from the 0.8N-th turn to the N-th turn of the first material layer, and a plurality of second recesses are provided on the surface of the second region. The above arrangements are conductive to reducing the following safety risks of the electrode assembly: an inner-turn electrode sheet collapsing due to an excessive compaction force and an outer-turn electrode sheet fracturing due to an excessive tensile stress, thereby resulting in burrs and thus short circuits.

OXIDE SOLID-STATE ELECTROLYTE AND PREPARATION METHOD THEREFOR, ALL-SOLID-STATE BATTERY AND ELECTRIC DEVICE

Nº publicación: WO2026143897A1 09/07/2026

Solicitante:

SHENZHEN MSU BIT UNIV [CN]
\u6DF1\u5733\u5317\u7406\u83AB\u65AF\u79D1\u5927\u5B66

Resumen de: WO2026143897A1

The present invention belongs to the technical field of solid-state electrolytes, and provides an oxide solid-state electrolyte and a preparation method therefor, an all-solid-state battery and an electric device. The chemical formula of the electrolyte is Aa-bMbXcTi2-cZ dP3-dOe, wherein a=1-2, b=0-1, c=0-1, d=0-1.5, and e=(12-d)-12; A comprises any one of Li, Na and K; M comprises at least one of Na, K, Rb, Cs, Be, Mg, Ca, Sr and Ba; X comprises at least one of Al, Ga, In, La, Y, Sc, Fe and Cr; Z comprises at least one of B, S, Si, V, Tc, Re, As, Xe, W, Se, Nb and Mn; and A is different from M, and b, c and d are not 0 at the same time. By subjecting key lattice sites in the electrolyte to doping modification, the ionic conductivity is improved.