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1255
resultados
Última actualización
10/02/2026 [07:21:00]
Resultados 600 a 625 de 1255
Resumen de: WO2026023947A1
The present invention relates to a battery module comprising: a plurality of battery cells; and a cover member configured to at least partially surround the outer surface of at least some of the plurality of battery cells and maintain the temperature in the battery cells to be uniform.
Resumen de: WO2026023956A1
The present invention relates to an anode for a lithium secondary battery and a manufacturing method therefor. The ratio of porosity to the degree of orientation (O.I) of a carbon-based anode active material in the anode satisfies a predetermined range such that movement paths of lithium ions in an anode active layer are shortened and diffusion resistance of the lithium ions is significantly lowered, and thus the anode has excellent fast-charging performance. In addition, the density of the anode active layer in the anode is improved within a range that does impair the shortened movement paths of lithium ions, and thus the anode has excellent energy density.
Resumen de: WO2026023950A1
Provided, according to example embodiments, is a method for manufacturing a secondary battery. The method comprises: a step for reading an electrode ID from a data matrix of a monocell including a positive electrode, a negative electrode, and a separator; and a step for determining whether the monocell is functional or defective on the basis of the electrode ID, wherein the electrode ID includes a symbol for identifying an electrode.
Resumen de: WO2026020899A1
A battery and an electrical device, relating to the technical field of batteries. The battery comprises a housing and a solid-state battery cell. An enclosed space is formed inside the housing. The solid-state battery cell is disposed in the enclosed space. The solid-state battery cell comprises a first electrode plate, a solid-state electrolyte layer, and a second electrode plate. The first electrode plate and the second electrode plate have opposite polarities. The solid-state electrolyte layer is disposed between the first electrode plate and the second electrode plate to separate the first electrode plate and the second electrode plate. The enclosed space is filled with gas, and the gas pressure in the enclosed space is greater than the gas pressure outside the housing. This battery structure enables pressure to be applied to the solid-state battery cell from multiple directions, which is beneficial to improving the contact area and contact effect at any location between the first electrode plate and the solid-state electrolyte layer and between the second electrode plate and the solid-state electrolyte layer, thereby effectively reducing the risk of performance degradation or even failure or short circuit during battery use, and improving the use reliability and service life of the battery.
Resumen de: WO2026020931A1
The present disclosure belongs to the technical field of batteries. Provided are a battery case, a battery, a battery pack and an electric device. The battery case comprises a housing and top covers. The housing has a first cavity; and each top cover comprises a cover plate and a cap, wherein the cap is provided with a second cavity in communication with the first cavity, the cover plate is connected to the housing, the cap is located on the side of the cover plate facing away from the housing and is connected to the cover plate, and an insulating layer is provided on the surface of the cap facing the second cavity and is located on the inner wall of the cap. In this way, an electrically conductive assembly inside the battery can be conveniently connected to a battery cell in a welded manner.
Resumen de: WO2026020913A1
An energy storage box and an electrical device, relating to the technical field of batteries. The energy storage box of the present application comprises: a box body, having an accommodation cavity and a box opening in communication with the accommodation cavity; a cover plate assembly, comprising a cover plate body covered on the box opening; and a plurality of connection portions, which are arranged at intervals around the box opening, the cover plate being connected to the box body by means of the plurality of connection portions. A spacing dimension is formed between two adjacent connection portions, and the energy storage box has a plurality of spacing dimensions, at least one spacing dimension being different from at least another spacing dimension. The spacing dimensions between the connection portions configure vulnerable positions of connection between the cover plate body and the box body, such that when an explosion occurs inside the box body, the cover plate body can be first burst open from the vulnerable positions, and the gas inside the box body will be discharged from a gap caused by the bursting, thereby achieving the purpose of pressure relief and reducing the load on the connection portions at other positions, reducing the likelihood of the cover plate body being directly burst open and blown off, and improving safety of energy storage boxes.
Resumen de: US20260031435A1
A current collector includes an organic substrate layer and conductive layers disposed on two surfaces of the organic substrate layer. An initial melting temperature and phase change latent heat of a material of the organic substrate layer of the current collector are controlled so that the current collector can absorb a large amount of heat after reaching the initial melting temperature.
Resumen de: US20260031434A1
A traction battery pack assembly includes an enclosure, and a battery array within an interior of the enclosure. The battery array includes a plurality of battery cells. The assembly further includes a hanging barrier within the interior of the enclosure. The hanging barrier including an attachment flange that extends transversely from a hanging portion.
Resumen de: US20260031456A1
A battery pack can include a frame unit including an outer frame configured to define a receiving space and a support frame located inside an edge of one side of the outer frame, a battery cell received in the receiving space, a battery management unit (BMU) having one surface facing an upper surface of the support frame, the BMU being electrically connected to the battery cell, and a BMU cover including a cover plate located at another surface of the BMU, wherein the frame unit includes a first rib and a second rib.
Resumen de: US20260031429A1
A rechargeable battery pack includes: a battery housing including an inner space; a plurality of unit battery cells in the inner space; a bus bar configured to electrically connect unit battery cells of the plurality of unit battery cells; a lower holder unit configured to fix the unit battery cells in the battery housing; and a cooling unit in a bottom plate of the battery housing under the lower holder unit to cool the unit battery cells.
Resumen de: US20260031428A1
A box body assembly and a battery pack are provided in the present application. The box body assembly includes a box body and liquid cooling joint groups. The liquid cooling joint groups include a first liquid cooling joint and a second liquid cooling joint. The second liquid cooling joint includes a first transition section, a second transition section, and a third transition section. A distance between an orthographic projection of the first liquid cooling joint on a plane where the second cooling plat is located and an orthographic projection of the first transition section on the plane where the second cooling plate is located is D1, a distance from the first transition section to a side edge is D2, and D2 is greater than D1, so as to reduce space and cost on a front panel.
Resumen de: US20260031431A1
A thermal management system having a thermal fluid water separator assembly, and which is configured to circulate a thermal fluid in at least an immersion-cooled system, including a battery system for a vehicle, among other systems and machines. The thermal management system can be configured to control a temperature of one or more electric devices, such as, for example, a plurality of battery cells, of the associated system. The thermal fluid water separator assembly can include a media, and a water collection portion configured to collect water separated by the thermal fluid water separator assembly from the thermal fluid. The thermal fluid water separator assembly can be selectively operated in conjunction with either or both a primary pump and a secondary pump to further optimize water removal during periods of activity and/or inactivity of the associated system or machine, as well as under different conditions.
Resumen de: US20260031343A1
A positive electrode active substance having a layered rock-salt structure and having an initial charge capacity larger than that of a conventional technology is provided. The positive electrode active substance is obtained by adding an additive containing boron element to a lithium composite oxide having a layered rock-salt structure represented by Li2Mn1-xNixO3 (0≤x<1) or a precursor of the lithium composite oxide, and performing heating and sintering. The amount of boron is more than 0.00075 equivalents and 0.2 equivalents or less with respect to 1 equivalent of a total of Mn and Ni of the lithium composite oxide.
Resumen de: US20260031360A1
An electrode (100) for a power storage device includes a current collector (101) having a first surface (101a), and an active material layer (102) that is formed on the first surface (101a) of the current collector (101). A thickness of the active material layer (102) is 250 μm or more. A carbon coat layer (C) is provided on the first surface (101a) of the current collector (101). The active material layer (102) contains an active material that can store and release charge carriers, an aqueous binder, and single-walled carbon nanotubes. A content of the single-walled carbon nanotubes in the active material layer (102) is in a range of 0.035% by mass to 0.08% by mass.
Resumen de: US20260031356A1
The present disclosure relates to a method for manufacturing an electrode, including: coating an electrode forming slurry on at least one surface of a current collector; and rolling the current collector coated with the electrode forming slurry, wherein the electrode forming slurry includes an electrode active material and an electrode binder, wherein the electrode binder includes an acrylic binder, and wherein the rolling is performed at a temperature of 105° C. or more, thereby manufacturing the electrode having low moisture content by using the rolling process in the manufacture of the electrode using the aqueous binder.
Resumen de: US20260031347A1
This application relates to the field of battery technologies, and in particular, to a pressure-resistant positive active material and an electrochemical energy storage apparatus. The positive active material includes secondary particles composed of primary particles, and a quantity σ of primary particles per unit sphere area in a SEM graph of the secondary particles is 5/μm2 to 30/μm2. A single-particle pressure-resistant strength of the secondary particles is 60 MPa to 300 MPa. A molecular formula of the positive active material is LixNiyCOzMkMepOrAm, where 0.95≤x≤1.05, 0≤y≤1, 0≤z≤1, 0≤k≤1, 0≤p≤0.1, 1≤r≤2, 0≤m≤2, and m+r≤2. The positive active material in this application has a compact particle structure and a high single-particle pressure-resistant strength. A lithium-ion battery using the positive active material in this application has good cycle performance, a low volume swelling rate, and good kinetic performance.
Resumen de: US20260031391A1
Disclosed is a solid electrolyte membrane, a method for manufacturing the same, and an all-solid-state battery containing the same. More specifically, the solid electrolyte membrane includes a first solid electrolyte layer and a second solid electrolyte layer stacked adjacent to each other, and the first solid electrolyte layer has a structure in which particulate binders are dispersed, and the second solid electrolyte layer has a structure in which fibrous binders are entangled or connected to each other, and thus the strength may be improved without lowering the ionic conductivity of the solid electrolyte membrane. The solid electrolyte membrane may be substantially free of solvent.
Resumen de: WO2026023979A1
The present invention relates to a positive electrode for an all-solid-state battery and an all-solid-state battery comprising same, the positive electrode comprising: a current collector; and a positive electrode active material layer on the current collector, wherein the positive electrode active material layer further comprises a positive electrode active material, a solid electrolyte of chemical formula 1, and a binder, and the positive electrode active material has the effects of reducing the porosity of the positive electrode and improving ionic conductivity and electrical conductivity. Chemical formula 1 LiaPbScCldXe. In chemical formula 1, 4≤a≤7, 0≤b≤1, 3≤c≤5, 0≤d<0.3, and d
Resumen de: WO2026023969A1
A battery cell according to an embodiment of the present invention may comprise: an inner cell in which an electrode assembly is accommodated in a pouch-type exterior material; a case which accommodates the inner cell and has higher rigidity than the exterior material; an end cover which covers the end of the case and has an insulating material; and a pad which is in close contact between the inner surface of the case and the outer surface of the inner cell and is elastically deformed.
Resumen de: WO2026023944A1
The present invention provides equipment for assembling an electrode, the equipment being capable of simultaneously producing two types of unit battery cells. The equipment for assembling an electrode includes a pair of assembly parts, and at least one of the pair of assembly parts may be configured to selectively manufacture a mono cell or a half cell. Equipment for assembling an electrode, according to the present invention, comprises: a central separator roll that unwinds and continuously supplies a central separator having a width 2W; a cutout part that continuously cuts the central separator to divide the central separator into an upper central separator and a lower central separator, each having a width W; an upper assembly part that receives and combines the upper central separator and an upper electrode; and a lower assembly part that receives and combines the lower central separator and a lower electrode.
Resumen de: WO2026023926A1
A battery management system and a battery management method are provided. The battery management system according to the present invention comprises: a sensing unit for generating state data of each of a plurality of cell groups included in a battery assembly; a discharge unit for individually opening/closing a plurality of discharge paths provided to the plurality of cell groups; and a control unit for performing a diagnosis procedure that identifies, on the basis of the state data, whether each of the plurality of cell groups has a high-temperature abnormality or a low-temperature abnormality. The control unit determines at least one cell group from among the plurality of cell groups as a discharge object according to the result of the diagnosis procedure, and controls the discharge unit such that at least one discharge path provided to the discharge object is electrically connected.
Resumen de: WO2026020770A1
The present invention belongs to the technical field of batteries, and provides a negative electrode active material, a secondary battery, and an electronic device. The negative electrode active material comprises a silicon-based material and an outer layer material, wherein the outer layer material comprises a conductive agent and a nitrile polymer. The infrared spectrum of the negative electrode active material comprises infrared characteristic peaks of a cyano group. The negative electrode active material comprises nitrogen and silicon; and based on the mass of the negative electrode active material, the mass content of nitrogen is D1%, the mass content of silicon is G%, and 0.02≤D1/G≤0.5. By forming the outer layer material comprising the conductive agent and the nitrile polymer on the surface of the silicon-based material, the conductivity and the stability of the negative electrode active material can be improved, such that the secondary battery has an excellent cycle capacity retention rate and expansion inhibition performance, and the high-temperature storage performance of the secondary battery can be further improved.
Resumen de: WO2026020748A1
A composite current collector and a preparation method therefor, and a lithium-ion battery. The composite current collector comprises: a polymer base film (1); a metal layer (2) arranged on at least one side surface of the polymer base film (1); and an organic protective layer (3) arranged on the surface of the metal layer (2) along the direction away from the polymer base film (1), wherein the material of the organic protective layer (3) is composed of polypyrrole and a silane material in a mass ratio of (80-99.5):(0.5-20), and the polypyrrole is prepared by coating a pyrrole material on the metal layer (2) by means of in-situ polymerization.
Resumen de: WO2026020822A1
Disclosed in the present disclosure are a lead-out member, a cover plate assembly, a battery and an electric device. The lead-out member comprises a positioning portion, which is adapted to be connected to a tab and is adapted to limit the tab. By means of providing the positioning portion that is adapted to connect to the tab and is adapted to limit the tab, the tab does not fold and insert into a core under the limiting effect of the positioning portion, so as to increase the accommodating space in a housing for accommodating the core.
Nº publicación: WO2026020794A1 29/01/2026
Solicitante:
BYD COMPANY LTD [CN]
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Resumen de: WO2026020794A1
The present application discloses a battery module, a battery pack, and an electric device. The battery module comprises a first output electrode and a second output electrode having different polarities, and at least two battery assemblies; the at least two battery assemblies are stacked and arranged in a first direction; each battery assembly comprises a plurality of battery cells arranged in a second direction; the first output electrode and the second output electrode are arranged in offset positions in the first direction and the second direction, respectively; and the second direction is perpendicular to the first direction. According to the battery module of the present application, the use safety of the battery module can be improved while the working performance of the battery module is ensured.
BOPI
Sede Electrónica
