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586
resultados
Última actualización
24/08/2026 [07:59:00]
Resultados 50 a 75 de 586
Resumen de: AU2024432901A1
Provided in the present disclosure are a hard carbon material and a preparation method therefor, and a secondary battery and an electric apparatus. An XRD diffraction pattern of the hard carbon material includes a first diffraction peak, the first diffraction peak being located at a position where 2θ=26±0.5°.
Resumen de: US20260246021A1
0000 A battery assembly according to certain aspects of the present disclosure comprises: a battery cell stack in which a plurality of battery cells are stacked; a fixed frame that covers at least a part of the battery cell stack; an outer frame in which the battery cell stack and the fixed frame are housed; and an inlet and an outlet configured to circulate a coolant into the outer frame.
Resumen de: US20260246048A1
0000 Provided are a battery module and a battery pack that have highly waterproof property and can maintain storage of a battery in an accommodating portion even when vibration or impact is applied. A battery module 10 of the present disclosure includes a cylindrical battery 11 and a battery holder 20 that is an integrated product made of an elastic body and accommodates and holds the battery 11. The battery holder 20 has an accommodating portion 21 that accommodates the battery 11, and has an extension part 22 extending toward an axis AX of the battery 11 and an opening 23 surrounded by the extension part 22 at both ends of the accommodating portion 21.
Resumen de: US20260242294A1
0000 The present disclosure relates to the technical field of batteries, and specifically to silicon-carbon particles, a negative electrode plate, and a battery. The present disclosure provides silicon-carbon particles, wherein the surface of the silicon-carbon particles has recessed portions; the number N of the recessed portions on the surface of the silicon-carbon particles is ≥1; the diameter of the recessed portions is 0.05 μm-5 μm; the depth of the recessed portions is 10 nm-μm. By providing recessed portions on the surface of the silicon-carbon particles, the present disclosure is beneficial for improving the cycling stability and expansion performance of silicon-based negative electrode materials.
Resumen de: AU2025355974A1
A battery pack, a new energy device, a fire-extinguishing method and system for a battery pack, and a readable storage medium, which relate to the technical field of new energy batteries and are used to improve the reliability of battery packs during use. The battery pack comprises a case assembly (1), a cell assembly (2), a first-stage fire-extinguishing assembly (3) and a second-stage fire-extinguishing assembly (4). The case assembly (1) comprises an accommodating cavity (11) and a fire-extinguishing agent injection port (12) in communication with the accommodating cavity (11). The cell assembly (2) is mounted in the accommodating cavity (11). The first-stage fire-extinguishing assembly (3) is mounted in the accommodating cavity (11), and the first-stage fire-extinguishing assembly (3) is configured to extinguish a fire on the cell assembly (2). The second-stage fire-extinguishing assembly (4) is mounted outside the case assembly (1) and is in communication with the fire-extinguishing agent injection port (12), and the second-stage fire-extinguishing assembly (4) is configured to spray a fire-extinguishing agent onto the cell assembly (2) in the accommodating cavity (11). In the technical solution, a two-stage fire-extinguishing assembly is used, thus improving the fire-extinguishing effect. In addition, the battery pack can adapt to battery systems of different sizes, with a high level of universality, thereby greatly reducing research and development and design costs.
Resumen de: US20260245958A1
0000 The present invention relates to a positive electrode for a secondary battery and a secondary battery comprising the same, and more specifically, to a positive electrode for a secondary battery comprising a first positive electrode layer and a second positive electrode layer.
Resumen de: US20260245989A1
0000 According to an embodiment, a battery management system includes battery cells, a front-end circuit, a BMS ECU, and a communication interface circuit. The communication interface circuit includes half-bridge drivers coupled to internal isolation nodes, external isolation nodes, resistive networks between the internal and external nodes, a voltage comparator circuit, a clamping circuit, and an ESD protection circuit. The clamping circuit limits voltage excursions at the internal nodes, while the resistive networks develop detectable differential voltages during electromagnetic compatibility testing. The ESD protection circuit maintains trigger voltages above the sum of clamping voltage and resistive network voltage drops.
Resumen de: US20260245990A1
Provided are a fire extinguishing device for an energy storage system and a fire extinguishing device for a battery module to extinguish a fire in a cable connected to a control unit to transmit and receive electrical signals. To this end, the fire extinguishing device includes a battery module including a plurality of battery cells, a battery rack supporting the battery module, a module fire extinguishing unit configured to sense a fire of the battery module and spray a fire extinguishing agent on the battery module, a control unit connected to the battery module through a cable and configured to sense a state of the battery module, and a cable fire extinguishing unit configured to fix the cable and including the fire extinguishing agent.
Resumen de: WO2026171310A1
Method for producing an electrical connection device (1) for a high-voltage storage unit, in particular a high-voltage storage unit for a motor vehicle, wherein the electrical connection device (1) has at least one contact region (2) for connecting the connection device (1) to at least one electrical terminal, at which contact region a fuse region (4) is arranged or formed, by means of which the contact region (2) is electrically connected to the at least one electrical terminal, wherein a carrier device (5) having a separating agent (6) is arranged at least in sections on the fuse region (4).
Resumen de: WO2026171722A1
The present invention refers to a nonwoven mat for thermal insulation and protection from fire, a method for the preparation of said nonwoven mat, a partition member, a battery housing and a battery pack; and to the use of the nonwoven mat, the partition member and the battery housing for thermal insulation and protection from fire.
Resumen de: WO2026173518A1
A method (100) of operating a battery testing assembly (1) for initiating a thermal runaway in a battery arrangement (2) comprising at least one battery cell (3) is disclosed. The method (100) is performed by a control arrangement (8). The battery testing assembly (1) comprises a current generating device (6) configured to generate a varying current. The current generating device (6) is electrically connected to the at least one battery cell (3). The method (100) comprises controlling (104) the current generating device (6) to generate a varying current having a first frequency (f) to heat the at least one battery cell (3) to a temperature which initiates thermal runaway. The present disclosure further relates to computer program, a computer-readable medium, a control arrangement (8), and battery testing assembly (1).
Resumen de: US20260246068A1
A battery cell, a battery, and an electric device are disclosed. The battery cell includes a housing and a pressure relief component; the housing includes a first wall portion, and the pressure relief component is arranged on the first wall portion. The pressure relief component is provided with a first groove. The first groove is recessed from a first surface in a thickness direction of the first wall portion towards a second surface. The first groove defines at least one predetermined pressure relief area. The pressure relief component is configured to be capable of cracking along at least a portion of the first groove when the battery cell relieves pressure; where a sum S1 of areas of all the predetermined pressure relief areas is 0.03 to 0.3 times an area S2 of the first surface.
Resumen de: AU2024416703A1
An electrolyte of a lithium metal battery, a lithium metal battery, a battery, and an electrical apparatus. The electrolyte of the lithium metal battery comprises a main solvent, a diluent, and a lithium salt; the molar concentration of the lithium salt is 1 mol/L to 4 mol/L, and the viscosity of the electrolyte is less than or equal to 5.5 mPa⋅s. The cycle performance of the lithium metal battery can be improved.
Resumen de: AU2024457934A1
The present application provides a battery pack mounting guide rail and an energy storage container. The battery pack mounting guide rail is applied to an energy storage container and comprises: a support portion; a connecting portion connected to the support portion and forming an L-shaped structure; and a first limiting portion protruding from the connecting portion and arranged opposite the support portion, wherein the support portion, the connecting portion and the first limiting portion together define a limiting cavity, and the limiting cavity is configured to limit and fix a battery pack.
Resumen de: US20260245888A1
A cathode layer for use in a lithium-ion battery includes, as a cathode active material, single-crystal active materials that are crystalline primary particles containing Li, a transition metal, and O. Each single-crystal active material includes long and short edges. The angle between the long and short edges is 60° or more and 120° or less. The aspect ratio, namely the ratio of the length of the long edge to the length of the short edge, is 1.2 or more. The long edge of each single-crystal active material extends along the (003) plane. The proportion NB/NA is 20% or more, where NA represents the number of the single-crystal active materials, and NB represents the number of the single-crystal active materials in which the direction of the long edge is inclined at an angle of 50° or more and 90° or less with respect to an in-plane direction of the cathode layer.
Resumen de: WO2026170599A1
A composite separator and a preparation method therefor, and a battery. The composite separator comprises a substrate layer and a modified polymer, wherein the substrate layer has a porous structure, and the modified polymer is located within the porous structure. The composite separator has a first endothermic peak and a second endothermic peak under DSC testing, wherein the first endothermic peak is located at 110-160°C, and the second endothermic peak is located at 168-295°C. In the composite separator, the modified polymer is located within the porous structure, and the difference between the thickness t2 of the composite separator and the thickness t1 of the substrate layer is 0. The composite separator has the first endothermic peak and the second endothermic peak under DSC testing, which is beneficial for increasing the rupture temperature of the composite separator and lowering the pore-closing temperature thereof, improves the heat resistance, prevents powder shedding, and provides good structural stability, such that the energy density of a battery cell can be increased.
Resumen de: WO2026170892A1
Provided in the present application are a battery cell, a manufacturing method therefor, a battery and an electrical apparatus. The battery cell comprises a positive electrode sheet; the positive electrode sheet comprises a positive electrode film layer; the positive electrode film layer comprises lithium iron sulfate fluoride. The chemical formula of lithium iron sulfate fluoride satisfies: Li1+aFexMySO4F, -0.05≤a≤0.1, x≥0.95, y>0, and x+y=1; an X-ray diffraction pattern of lithium iron sulfate fluoride exhibits a diffraction peak C at 29.5°-30.5°, and exhibits a diffraction peak D at 31.5°-32.5°; the integral areas of the diffraction peaks C and D are SC and SD; the integral area of a diffraction peak of lithium iron sulfate fluoride at 20°-40° is S, wherein: (SC+SD)/S≥0.3, SC/S≥0.15, and SD/S≥0.15. The technical solution of the present application can improve the conductivity and stability of battery cells, so that both the rate performance and the cycle performance of the battery cells are taken into account.
Resumen de: WO2026170966A1
A lithium-ion battery cell and a related preparation method, a battery, and an electric device. Provided is a lithium-ion battery cell, comprising a positive electrode sheet, the positive electrode sheet comprising a lithium-rich manganese-based positive electrode material. The lithium-rich manganese-based positive electrode material comprises spheroids formed by agglomeration of primary particles and needle-shaped clusters formed by linear arrangement of primary particles, and the needle-shaped clusters are radially distributed on the surface of the spheroid. The spheroids have a diameter of 1 μm-5 μm, and the needle-shaped clusters have a length of 1 μm-7 μm. The lithium-rich manganese-based positive electrode material in the lithium-ion battery cell has a special radial morphology. By appropriately controlling the spheroid diameter and needle-shaped cluster length of the lithium-rich manganese-based positive electrode material, the specific surface area of the lithium-rich manganese-based positive electrode material can be increased, facilitating the rapid intercalation and deintercalation of lithium ions, and improving the diffusion rate of lithium ions, thereby improving the rate performance of the lithium-ion battery cell.
Resumen de: US20260245981A1
A lithium secondary battery having high energy density and excellent lifetime characteristics includes: (1) a positive electrode containing a positive electrode active material in a single particle form having a D50 of 5.5 μm to 8 μm; (2) a negative electrode containing a first negative electrode active material having a Si—C composite; and (3) an electrolyte. The irreversible capacity per unit area of the negative electrode is smaller than an irreversible capacity per unit area of the positive electrode.
Resumen de: WO2026171019A1
Provided in the present application are a composite binder, and an electrode sheet and a battery using same. The composite binder comprises a first binder, the first binder is a block polymer, and the first binder is prepared by means of a block reaction of polyvinylidene fluoride and a conjugated polymer, wherein the conjugated polymer comprises at least one of polyacetylene and polythiophene, and the mass content of polyvinylidene fluoride used for preparing the first binder is 50-90%.
Resumen de: WO2026171024A1
A composite current collector, electrode plate, battery cell, and method for preparing and testing a battery cell, relating to the technical field of composite current collectors. The composite current collector comprises a heating layer (100) and two metal layers (200), wherein the heating layer (100) is disposed between the two metal layers (200) and is connected separately to each of the metal layers (200), and a heating element is disposed within the heating layer (100). At least one metal layer (200) has a coating region on the side facing away from the heating layer, and a heating region of the heating element corresponds to the coating region. According to the composite current collector provided by the embodiments of the present application, heat is generated by the heating element to uniformly heat the heating layer, and is uniformly transferred to the coating region, such that the temperature distribution is uniform and the temperature difference at each location is small, thereby improving the performance and service life of the battery.
Resumen de: WO2026171072A1
Provided in the present application are a positive electrode sheet and a preparation method therefor, a battery, a battery pack and an electrical device. The positive electrode sheet comprises a current collector, and a first active layer and a second active layer which are sequentially stacked on at least one functional surface of the current collector, wherein the first active layer comprises a first active material, a first conductive agent and a first binder, the second active layer comprises a second active material, a second conductive agent and a second binder, the first active material comprises lithium manganese oxide and/or lithium iron manganese phosphate, the second active material comprises a ternary material, and the mass ratio of the first active material to the second active material is 5-9:1-5.
Resumen de: US20260246002A1
A battery system including a plurality of subpacks and a lower case accommodating the plurality of subpacks therein. Each subpack includes: a lower housing in which a plurality of battery modules, electrical components, and input/output terminals are mounted; and a cooling block mounted in the lower housing. The lower housing has a double structure including: a first plate forming an outer surface of the lower housing and a second plate spaced apart from the first plate to form a venting space and forming an inner surface of the lower housing, and a slit is formed through the second plate.
Resumen de: US20260245954A1
The present disclosure relates to a positive electrode for a rechargeable lithium battery, a rechargeable lithium battery including the positive electrode, and a method for manufacturing a positive electrode for a rechargeable lithium battery. The positive electrode includes a positive electrode current collector, a first positive electrode active material layer on the positive electrode current collector, and a second positive electrode active material layer on the first positive electrode active material layer. At least one of the first and second positive electrode active material layers includes a first particle and a second particle, wherein an amount of the first particle in the first positive electrode active material layer is in a range of about 55 wt % or more, and an amount of the second particle in the second positive electrode active material layer is in a range of about 55 wt % or more.
Nº publicación: US20260246046A1 20/08/2026
Solicitante:
MAKITA CORP [JP]
Makita Corporation
Resumen de: US20260246046A1
0000 A battery pack may be configured to be detachably attached to a battery pack attaching part by the battery pack sliding relative to the battery pack attaching part. The battery pack may include: a casing; and a plurality of battery cells accommodated inside the casing. A through hole which opens downward may be defined in the casing. In a front-rear direction, the through hole may be disposed rearward of a front end of a frontmost battery cell among the plurality of battery cells and frontward of a rear end of a rearmost battery cell among the plurality of battery cells. In an up-down direction, an inner surface of the casing at a portion where the through hole is defined may be disposed above a lower end of a lowermost battery cell among the plurality of battery cells.
BOPI
Sede Electrónica
