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847
resultados
Última actualización
15/07/2026 [08:03:00]
Resultados 350 a 375 de 847
Resumen de: WO2026144902A1
The present application discloses a venting assembly, comprising: a venting member, a plurality of gas guide members, and a plurality of gas baffles. The gas guide members are arranged in a venting cavity of the venting member and correspond to gas inlets; the gas baffles are arranged at exits of the gas guide members; when the gas baffles are at a first position, the gas baffles block openings of the corresponding gas guide members; when the gas baffles are at a second position, the gas baffles unblock the openings of the corresponding gas guide members, and the gas baffles cut off a flow path of the venting cavity. The venting assembly of the present application aims to solve the problem that high-temperature substances in venting assemblies are prone to accumulation during thermal runaway of cells, and achieves constraint and guidance of flow of the high-temperature substances and gas to specified directions, so that the high-temperature substances and gas are rapidly vented and are not prone to accumulation, thereby avoiding further thermal runaway of adjacent cells. The present application also discloses a battery module and a battery pack.
Resumen de: WO2026143774A1
The present application relates to the technical field of secondary batteries, and provides a lithium ferrite pre-lithiation additive, a positive electrode material, a positive electrode sheet, and a secondary battery. The lithium ferrite pre-lithiation additive of the present application comprises a core layer and a shell layer coated on a surface of the core layer, a material of the core layer comprises Li5FeO4, a material of the shell layer comprises a carbon material, the lithium ferrite pre-lithiation additive has an ID/IG of 1.0 to 1.2, and the shell layer has an average thickness of 60 nm to 200 nm. The present application effectively improves air stability of lithium ferrite pre-lithiation additives by forming a carbon layer on a surface of a core layer containing Li5FeO4, controlling an ID/IG thereof, and then controlling an average thickness of the shell layer.
Resumen de: US20260194594A1
Disclosed is a defective battery cell determination method including a first step of obtaining resistance values according-to-temperature of a plurality of battery cells, wherein each battery cell of the plurality of battery cells is of an equal type; a second step of measuring a temperature value and a resistance value of a test battery cell, wherein the test battery cell is of the equal type and is not a battery cell of the plurality of battery cells; and a third step of determining whether the measured temperature value and the resistance value of the test battery cell correspond to a predetermined good quality standard based on the obtained resistance values according-to-temperature for the plurality of battery cells, wherein it is determined whether the battery cell is defective based on the value measured in the second step without measuring the time required between the first and second steps.
Resumen de: WO2026143899A1
A carbon nanotube/graphite hybrid material and a preparation method therefor, and a lithium-ion battery. The preparation method comprises: mixing a surfactant, expanded graphite, and water to prepare a graphite dispersion, and then removing water from the graphite dispersion to obtain modified graphite; mixing the modified graphite, a soluble metal salt, water, and optionally an ammonium salt to prepare a metal salt-graphite dispersion, removing water from the metal salt-graphite dispersion, and then performing low-temperature calcination on an obtained solid product to obtain a metal-supported graphite catalyst; and performing chemical vapor deposition using a carbon source gas to form carbon nanotubes, thereby obtaining the carbon nanotube/graphite hybrid material. The carbon nanotube/graphite hybrid material can be efficiently prepared, and there are good electron transport pathways between the carbon nanotubes and the graphite in the hybrid material, effectively improving the electrochemical performance of the lithium-ion battery.
Resumen de: WO2026145787A1
The present application relates to a charging control circuit, system and device. The charging control circuit includes a current detection module, a comparator module and a main control module, wherein a charging current is detected by means of the current detection module, and a detection signal is output to the comparator module, so as to process the detection signal by means of the comparator module to output, to the main control module, a control signal corresponding to the charging current, and then the control signal is detected by means of the main control module, so as to determine, on the basis of a detection result, whether to enable a delay function; and if the delay function is enabled, when a delay duration reaches a preset duration threshold, a control operation corresponding to a re-detected control signal is determined, and in response to the control operation, the work of a heat dissipation apparatus is controlled on the basis of the control operation after a delay for a certain period of time, thereby realizing the intelligent control over charging heat dissipation, and realizing the automated control over charging heat dissipation, such that the power consumption of a charging product can be effectively reduced, and the user experience is improved.
Resumen de: WO2026144620A1
The present application discloses a battery pack and an electrical device. The battery pack has a first direction and a second direction intersecting each other, and comprises a case, a plurality of electrode assemblies, and an adapter circuit board; the case is provided with an accommodating cavity; the plurality of electrode assemblies are arranged in the first direction and are arranged in the accommodating cavity; the electrode assemblies comprise battery cells and tabs that are conductively connected, and the tabs of the plurality of electrode assemblies are arranged in the first direction; the adapter circuit board comprises a board body and a plurality of first pads arranged at intervals in the first direction, the board body is provided with a plurality of first channels, and the first channels pass through the board body in the second direction; the first pads are arranged on the side of the board body away from the battery cells in the second direction and are connected to the board body; the plurality of first pads and the plurality of first channels are alternately arranged in the first direction; and at least two adjacent tabs pass through one first channel and are conductively connected to one first pad. The present application helps to simplify the structure of battery packs, improve the degree of integration, and reduce the risk of short circuits.
Resumen de: WO2026144837A1
The present application relates to the technical field of batteries, and discloses a battery cell and a battery pack. An insulating member of said battery cell has at least two protruding flow guide ribs protruding from the side facing away from a top cover plate. The protruding flow guide ribs are spaced apart along the outer periphery of a second liquid injection hole. The protruding flow guide ribs can improve the structural strength of the area around the second liquid injection hole and reduce the risk of deformation of the insulating member. Furthermore, in the radial direction of the second liquid injection hole, the protruding flow guide ribs are recessed in a direction away from the second liquid injection hole. A flow guide channel in communication with the second liquid injection hole is formed between each two adjacent protruding flow guide ribs. The flow guide channel can have the effect of guiding an electrolyte during injection of the electrolyte from the second liquid injection hole, thereby ensuring liquid injection efficiency. In addition, the protruding guide ribs are spaced apart from the second injection hole in the radial direction of the second liquid injection hole, which can reduce the risk of contact between an electrode assembly and the top cover plate, that is, the risk of a short circuit between the electrode assembly and the top cover plate can be reduced.
Resumen de: WO2026144109A1
The present application provides a positive electrode material, and a preparation method therefor and the use thereof. The positive electrode material comprises a core and a carbon coating layer coated on at least part of a surface of the core; the molecular formula of the core is NaxFeyMZBa(PO4)2(P2O7), wherein M is a transition metal doping element; 3.8≤x≤4.2, 2.5≤y≤3, 0≤z≤0.5, and 0.00001≤a≤0.0005; in the phase composition of the core, the mass content percentage of Na4Fex(PO4)2P2O7 is greater than or equal to 89%, the mass content percentage of NaFePO4 is 1-8%, the mass content percentage of Na2FeP2O7 is 2-9%, and the mass content percentage of NaFe(P2O7) is 0.2-1.5%; and in the positive electrode material, the mass content percentage of the carbon coating layer is 1-5%. The positive electrode material has excellent electrical conductivity, and when same is used in a battery, the charge-discharge capacity of the battery can be improved.
Resumen de: WO2026144507A1
The present application is applicable to the technical field of batteries, and provides a battery apparatus (10) and an electric apparatus, the battery apparatus (10) comprising a case body (2) and a battery cell array (1), wherein the case body (2) comprises two first inner walls (2111) opposite to each other along a first direction (Y), and the maximum distance between the two first inner walls (2111) along the first direction (Y) is a first size (L1); and the battery cell array (1) is disposed between the two first inner walls (2111), the battery cell array (1) comprises a plurality of battery cells (11) arranged in an array of M rows and N columns, and in the battery cell array (1), the battery cells (11) in each column are arranged along the first direction (Y), and the battery cells (11) in each row are arranged along a second direction (X), wherein the maximum size of the battery cells (11) along the first direction (Y) is a second size (L2), and an electrode terminal (111) is provided at at least one end of the battery cells (11) along the first direction (Y); M≥1, and N≥1, with both M and N being positive integers; the second size (L2)*(M)/the first size (L1)∈0.846, 0.921); and the first direction (Y) intersects the second direction (X). In this way, the maximum temperature and energy density of the battery apparatus (10) can be within an optimal range.
Resumen de: WO2026144506A1
The present application is applicable to the technical field of batteries. Provided are a battery apparatus (10) and an electric apparatus. The battery apparatus (10) comprises a case body (2) and a battery cell array (1). The case body (2) comprises two first inner walls (2111) opposite to each other along a first direction (X), and the maximum distance between the two first inner walls (2111) along the first direction (X) is a first size (L1); and the battery cell array (1) is disposed between the two first inner walls (2111), the battery cell array (1) comprises battery cells (11) arranged in an array of M rows and N columns, and in the battery cell array (1), the battery cells (11) in each row are arranged along the first direction (X), and the battery cells (11) in each column are arranged along a second direction (Y), wherein the maximum size of the battery cells (11) along the first direction (X) is a second size (L2), and an electrode terminal (111) is provided at at least one end of the battery cells (11) along the second direction (L2); and M≥1, and N≥1, with both M and N being positive integers, and the second size (L2)*N/the first size (L1)∈0.771, 0.947. In this way, both a high heat dissipation capability and a high energy density can be achieved for the battery apparatus (10).
Resumen de: WO2026145820A1
The present invention relates to the technical field of battery production lines. Disclosed are a battery production line and a battery manufacturing method. The battery production line specifically comprises: a cell processing island, capable of implementing loading, OCV testing, adhesive application, and stacking processes of cells; a module processing island, capable of implementing the assembly and compression molding of cell groups; a module packing island, capable of implementing grabbing of a cell modules into a pack and limiting the size of the modules in the process; an adhesive application island, capable of implementing cleaning and adhesive application at the bottom of the pack; an air tightness testing island, capable of implementing air tightness testing of the packed battery modules and a liquid cooling plate; a welding island, capable of implementing a welding process of an integrated cover plate on the pack; a torque setting island, capable of implementing tightening and torque setting of bolts on the pack; and a plurality of automated guided vehicles, capable of transporting products between the functional islands, and implementing process flow switching between CTP products and large module products by means of different paths, so as to achieve the compatibility between the CTP products and the large module products. The present invention aims to realize flexible switching between CTP products and large module products, so as to adapt to rapid changes and d
Resumen de: WO2026143716A1
The present application belongs to the technical field of energy storage, and provides a lithium-replenishing agent. The lithium-replenishing agent comprises: a lithium-rich lithium ferrite material and a coating layer that coats the surface of the lithium-rich lithium ferrite material, wherein the material of the coating layer comprises lithium pyrophosphate. The present application is beneficial for solving the technical problems of the poor air stability, relatively poor safety, etc., of lithium-rich positive electrode materials in the related art, and thus can effectively replenish lithium.
Resumen de: WO2026143715A1
The present application belongs to the technical field of energy storage, and provides a lithium-replenishing agent. The lithium-replenishing agent comprises lithium phosphite and a coating layer that coats the surface of the lithium phosphite, wherein the material of the coating layer comprises iron boride. The present application is beneficial for solving the problems of relatively poor safety and stability, high costs, the generation of residues during lithium replenishing, etc., of lithium-replenishing materials in the related art.
Resumen de: WO2026145175A1
The present application discloses a secondary battery, a battery pack, and an electrical apparatus. The secondary battery has a first direction and a second direction intersecting each other, and comprises a top cover assembly. The top cover assembly comprises a top cover plate and a lower insulating member. The top cover plate is provided with a first liquid injection hole. The lower insulating member comprises a body, a side plate, a baffle, and a partition portion. The body is connected to the top cover plate. The body is provided with a second liquid injection hole in communication with the first liquid injection hole, and the first liquid injection hole and a part of the top cover plate are exposed from the second liquid injection hole. A side plate is provided with a liquid outlet in communication with the second liquid injection hole. The partition portion is connected to the body and arranged opposite to the liquid outlet. The baffle is connected to the side plate and spaced between the top cover plate and an electrode assembly. The orthographic projection of the baffle on the top cover plate covers the first liquid injection hole. The partition portion is spaced between the top cover plate and the electrode assembly. In the first direction, the size of the baffle is a, and the size of the partition portion is b, satisfying: 0.05≤b/a≤11. The present application can prevent a separator from folding and prevent short circuits caused by contact between a tab and the
Resumen de: US20260196650A1
0000 A battery cell, a battery, and an electric device. The battery cell comprises a shell and a pressure relief notch, wherein the shell is flat and comprises two first walls opposite each other in the direction of the thickness of the shell; and the pressure relief notch is arranged in at least one of the first walls.
Resumen de: WO2026143805A1
Disclosed in the present invention are a lithium battery packaging aluminum-plastic film and a preparation process therefor. The lithium battery packaging aluminum-plastic film comprises: a nylon layer, an aluminum foil layer, and a polypropylene film layer. An outer adhesive layer is arranged between the nylon layer and the aluminum foil layer, and an inner adhesive layer is arranged between the aluminum foil layer and the polypropylene film layer. The inner adhesive layer is composed of the following components in parts by weight: 100 parts of maleic anhydride-modified styrene, 10-20 parts of chlorinated polypropylene butene, 2-5 parts of hydrogenated bisphenol A epoxy resin, 1-3 parts of a curing agent, 0.5-1 part of a tackifying resin, 2-5 parts of benzyl dimethylamine or pyridine, 0.5-2 parts of 3,5-diethyltoluenediamine, 0.2-1 part of an antioxidant, and 200-300 parts of an organic solvent. In the present invention, the stability of the adhesive strength between the aluminum foil layer and the polypropylene film layer exceeds 48 hours under a high-temperature hot water bath at 60°C, improving the high temperature resistance and high humidity resistance of the aluminum-plastic film, and improving the reliability and weather resistance of the lithium battery packaging aluminum-plastic film.
Resumen de: WO2026144347A1
Disclosed in the present application are a negative electrode sheet and a secondary battery comprising same. The negative electrode sheet comprises a current collector and an active material layer provided on at least one surface of the current collector, and the active material layer comprises a first active material layer and a second active material layer, wherein the first active material layer comprises first silicon-carbon particles, and the second active material layer comprises second silicon-carbon particles. The average particle size of the first silicon-carbon particles is d1, and the average particle size of the second silicon-carbon particles is d2, wherein d1 and d2 satisfy the relationship: 0.3
Resumen de: WO2026144165A1
The present application provides a positive electrode active material and a preparation method therefor, a positive electrode sheet, and a battery. The positive electrode active material satisfies the following condition: Formula 1, wherein I(111), I(222), I(400), and I(440) are all not equal to 0. In the positive electrode active material provided by the present application, by means of formula 1, the degree of exposure of the (222) and (111) crystal planes relative to the (110) and (100) crystal planes is defined, which can improve the lithium-ion conduction rate and dynamic performance of lithium nickel manganese oxide, thereby significantly improving the rate performance and discharge capacity of the corresponding battery.
Resumen de: US20260196852A1
0000 An energy storage system comprises an energy storage node that includes a plurality of battery storage elements and a control subsystem to receive battery data from the battery storage elements. The energy storage system further includes a power conversion system (PCS) and a control system coupled to the energy storage node and the PCS. The control system, the control subsystem, or both are configured to: receive or store battery charge and discharge characteristics of the battery storage elements during a plurality of operating conditions of the battery storage elements, the PCS, or both; and run the battery storage elements of the energy storage node at one or more selected operating conditions of the plurality of operating conditions based on the battery charge and discharge characteristics to reduce an imbalance in state of charge among the battery storage elements of the energy storage node.
Resumen de: US20260196674A1
0000 A buffer member, a battery cell, a battery, and an electrical apparatus. The buffer member is used inside the battery cell, and the battery cell includes an electrode assembly. The buffer member includes: a first surface and a second surface which are arranged opposite to each other; and through channels penetrating through the first surface and the second surface, where the buffer member can be compressed for buffering the expansion of the electrode assembly, and the through channels are used for increasing the compressibility of the buffer member.
Resumen de: WO2026143589A1
The present application relates to the technical field of energy storage, and provides a lithium supplementing agent, comprising: a lithium-rich material, the lithium-rich material comprising an inner core and a coating layer coating the surface of a lithium-rich lithium iron oxide material, the inner core comprising a lithium-rich lithium iron oxide material, and the material of the coating layer comprising a composite lithium vanadium phosphate material. The present application facilitates solving of the technical problems in the related art of poor stability and relatively poor safety stability of lithium-rich positive electrode materials in the air.
Resumen de: WO2026144424A1
The present application relates to the technical field of dry-process electrode manufacturing, and in particular to a feeding device and a dry-process electrode sheet preparation mechanism. A feeding device, configured to convey materials to a film-pressing device. The feeding device comprises a carrying member and a vibration assembly, wherein the carrying member is configured to receive the materials, and the carrying member is provided with a feed port and a discharge port; and the vibration assembly is connected to the carrying member, and the vibration assembly is capable of driving the carrying member to vibrate, so that the materials on the carrying member are uniformly dispersed under the action of a vibration force and move forward at a constant speed, and are conveyed from the feed port to the discharge port and fall into the film-pressing device, thereby ensuring continuous and uniform material supply, enabling the materials to enter the film-pressing device more uniformly, and as such ensuring the uniformity of the thickness of an electrode sheet, and facilitating improving the stability of a dry-process electrode sheet preparation process and improving the product quality.
Resumen de: WO2026144088A1
A liquid cooling unit and a battery pack, wherein the liquid cooling unit comprises a plurality of liquid cooling plates (1), a plurality of metallic tubes (2), and a plurality of connecting members (3). Each metallic tube (2) is configured for communicating with two liquid cooling plates (1), and an end portion of the metallic tube (2) is sealingly inserted into a communication port (12) of the liquid cooling plate (1). Each connecting member (3) is disposed at a joint between the metallic tube (2) and the liquid cooling plate (1), the metallic tube (2) is connected to the connecting member (3), the connecting member (3) is connected to the liquid cooling plate (1), a distance between the connecting member (3) and the liquid cooling plate (1) is adjustable, and an insertion depth of the metallic tube (2) into the communication port (12) varies with changes in the distance between the connecting member (3) and the liquid cooling plate (1).
Resumen de: WO2026146732A1
This positive electrode active material for a lithium secondary battery may have a nickel (Ni) content of greater than 80 mol% among components other than lithium (Li) and oxygen (O), and may satisfy formula 1 below according to thermogravimetric analysis (TGA): Formula 1 0.25 (%) < △W200(%)·200(K)/Tonset (K) < 0.75 (%), where Tonset (K) is an onset temperature, kelvin (K), in a first-stage decomposition section of the positive electrode active material; △W200(%) = Wonset(%) - Wonset+200K(%); Wonset (%) is a weight (%) at Tonset (K); and Wonset+200K (%) is a weight (%) at Tonset (K) +200 (K).
Nº publicación: US20260196508A1 09/07/2026
Solicitante:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Resumen de: US20260196508A1
0000 An electrode assembly, a preparation method therefor, a battery, and an electrical apparatus are disclosed. The electrode assembly includes an electrode plate comprising a current collector, an active layer, and a tab. The active layer is disposed on at least one side of the current collector in its thickness direction, and the tab is arranged on one side of the current collector in its height direction. In a direction from the tab side toward the opposite side and from the current collector toward the outward side, the liquid absorption capacity of the active layer gradually decreases. Such gradient structure enables the active layer to exhibit different electrolyte absorption capacities in a specified direction, improving electrolyte wettability. The configuration further reduces electrolyte loss caused by electrode plate expansion or contraction during charge and discharge, thereby enhancing overall wettability of the electrode assembly.
BOPI
Sede Electrónica
