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1468
resultados
Última actualización
02/04/2026 [07:26:00]
Resultados 925 a 950 de 1468
Resumen de: WO2026056588A1
The present application belongs to the technical field of batteries. Disclosed are a battery cell, a battery device and an electric device. The battery cell comprises a casing, an electrode assembly, a first insulating member and a second insulating member, wherein the casing has a first wall in a first direction; the electrode assembly is accommodated in the casing, and has a first surface in a second direction, the second direction being perpendicular to the first direction; the first insulating member is arranged between the first wall and the electrode assembly; the second insulating member at least partially wraps the electrode assembly, and comprises a first main body portion and a first connecting portion, the first main body portion at least partially covering the first surface, in the first direction, the first connecting portion being connected to the end of the first main body portion close to the first wall, and the first connecting portion being connected to the first insulating member; and the thickness of the first connecting portion is greater than that of the first main body portion. The technical solution provided in the present application can improve the reliability of the battery cell.
Resumen de: WO2026056111A1
A pre-lithiated separator, a preparation method therefor, and a use thereof, relating to the technical field of lithium-ion batteries. The pre-lithiated separator comprises a substrate and a sustained-release pre-lithiation agent coating applied to the substrate on a positive electrode side thereof. The sustained-release pre-lithiation agent coating comprises a sustained-release lithium supplementing agent. The sustained-release lithium supplementing agent comprises a lithium supplementing agent and a sustained-release agent coated on an outer layer of the lithium supplementing agent. The preparation method for the pre-lithiated separator comprises: coating a sustained-release lithium supplementing agent on a surface of a separator substrate. Due to the continuous-release characteristics of a buffer, a protective SEI layer and a lithium metal alloy are always formed on a negative electrode, allowing a battery system to maintain a high lithium ion concentration, thereby improving the cycle performance of a battery. In addition, the surface of the separator is coated with the sustained-release lithium supplementing agent. The process is mature, the proportion of an active substance on the surface of the electrode is not reduced, the energy density of the battery is not affected, and the cycle performance can be improved while ensuring that the performance of the battery cell is not reduced.
Resumen de: WO2026056077A1
Provided in the present application are a battery case and a battery pack. The battery case comprises an outer frame, a cross beam and an adapter portion, wherein the outer frame is of a circumferentially closed structure; two ends of the cross beam are respectively connected to two opposite inner walls of the outer frame; the cross beam divides the interior of the outer frame into a module compartment and an electrical compartment, and the cross beam has a through hole; and the adapter portion passes through and seals the through hole, two ends of the adapter portion are respectively located in the module compartment and the electrical compartment, and the adapter portion is configured to electrically connect a battery module in the module compartment to an electrical structure in the electrical compartment.
Resumen de: WO2026056935A1
A separator and a secondary battery. The separator comprises a base film layer, wherein one surface of the base film layer is provided with an inorganic ceramic layer, and the other surface of the base film layer is provided with linear adhesives. The thickness of each linear adhesive is D2, the width is W2, and 1μm≤D2≤5μm and 20μm≤W2≤400μm. When the separator is used in a secondary battery, the cycle performance of the secondary battery can be improved.
Resumen de: WO2026056973A1
A separator and a secondary battery. The separator of the present application comprises a base film layer, and a bonding layer and an inorganic ceramic layer are provided on the base film layer; the bonding layer is composed of a plurality of bonding points; in the bonding layer, the average longest diameter of the bonding points is 20-500 μm, and there are 20-150 bonding points in any region on the surface of the bonding layer, the length of a region being 3470 μm, and the width being 2600 μm. The bonding force of the surface of the separator is relatively strong, and the bonding force distribution is relatively uniform. When the separator is used in a secondary battery, the high-temperature cycle performance of the secondary battery can be improved.
Resumen de: WO2026056157A1
The present application provides a modified lithium-rich manganese-based positive electrode material, and a preparation method therefor and a use thereof. The modified lithium-rich manganese-based positive electrode material comprises a core and a coating layer coated on the surface of the core. The core comprises a vanadium-doped lithium-rich manganese-based positive electrode material, and the coating layer comprises a vanadium-cerium co-doped lithium-rich manganese-based positive electrode material. By doping vanadium into the core of the modified lithium-rich manganese-based positive electrode material, and synergistically combining vanadium-cerium co-doping in the coating layer, the present application improves the capacity and cycle performance of the modified lithium-rich manganese-based positive electrode material.
Resumen de: WO2026056153A1
The present invention relates to the technical field of container energy storage. Provided are a thermal management assembly based on semiconductor cooling and an energy storage container. The thermal management assembly based on semiconductor cooling provided in the present invention applies to the energy storage container, comprising a semiconductor cooler, an internal heat sink, an external heat sink, a first heat-conducting member, a second heat-conducting member and a third heat-conducting member, wherein the internal heat sink is arranged on the inner side of the wall of the container and encloses to form a first cavity, in which the semiconductor cooler and the first heat-conducting member are arranged, the semiconductor cooler having a cooling surface and a heating surface; and the external heat sink is arranged on the outer side of the wall of the container and encloses to form a second cavity, in which the second heat-conducting member is arranged, the third heat-conducting member connecting the first heat-conducting member and the second heat-conducting member. The thermal management assembly based on semiconductor cooling and the energy storage container provided in the present invention have low energy consumption, low costs and strong environmental adaptability.
Resumen de: WO2026056145A1
Disclosed in the present application is a battery pack, comprising a housing, a cell assembly, and reinforcing plates. The reinforcing plates each comprise a foam adhesive layer and a fiberglass cloth layer, wherein the foam adhesive layer is wrapped around the fiberglass cloth layer. The cell assembly is arranged in the housing, one reinforcing plate is arranged on each of two side walls of the cell assembly in the direction of length thereof, and the foam adhesive layers are fitted to the side walls of the cell assembly. On the basis of the law of the lever, the battery pack has the lowest bending and shear resistance in the direction of length of the cell assembly, and mounting the reinforcing plates on both sides of the cell assembly in the direction of length thereof can specifically improve the bending and shear resistance of the battery pack.
Resumen de: WO2026056559A1
Provided are a thermal runaway management system and method, and a battery pack. The thermal runaway management system comprises a battery monitoring circuit, a fire suppression assembly, and a gas collection assembly, wherein the battery monitoring circuit and the fire suppression assembly are both arranged inside a battery pack; the battery monitoring circuit is electrically connected to a battery cell in the battery pack; the fire suppression assembly and the gas collection assembly are electrically connected to the battery monitoring circuit; the battery monitoring circuit can be configured to monitor the temperature of the battery cell, control the fire suppression assembly to perform fire extinguishing inside the battery pack, and simultaneously control the gas collection assembly to collect gas inside the battery pack.
Resumen de: WO2026056554A1
A battery energy storage container and a battery energy storage apparatus. The battery energy storage container comprises a container body and a fire-fighting system; the fire-fighting system comprises aerosol fire-extinguishing devices and a water spray fire-extinguishing device; the aerosol fire-extinguishing devices are configured to be located above a battery pack; the water spray fire-extinguishing device comprises a fire-fighting pipe and spray heads; one end of the fire-fighting pipe is configured to be connected to a fire-fighting water source, and the other end of the fire-fighting pipe is connected to the spray heads; and the spray heads are configured to be located above the battery pack.
Resumen de: WO2026056518A1
A sodium secondary battery and an electric device. The secondary battery comprises a positive electrode sheet, a negative electrode sheet, a separator, and an electrolyte; the negative electrode sheet comprises a negative electrode current collector, or comprises a negative electrode current collector and a sodium metal layer arranged on the surface of the negative electrode current collector; the electrolyte comprises colloidal particles, an electrolyte salt and a solvent; the Raman spectrum of the electrolyte comprises a first Raman characteristic peak having a Raman shift ranging from 815 cm-1 to 825 cm-1 and a second Raman characteristic peak having a Raman shift ranging from 845 cm-1 to 855 cm-1, the peak area A1 of the first Raman characteristic peak and the peak area A2 of the second Raman characteristic peak satisfying: (A1+A2)/S1≤30%. In the formula, S1 represents the sum of peak areas of all characteristic peaks appearing in the Raman spectrum and having a Raman shift ranging from 800 cm-1 to 900 cm-1. The sodium secondary battery achieves both high capacity and high safety performance.
Resumen de: WO2026056999A1
A battery component, an upper cover assembly for an individual battery cell, and an individual battery cell (2). The battery component comprises a housing (1) and n individual battery cells (2); the n individual battery cells (2) are arranged in an inner cavity of the housing (1), n being an integer greater than 1; the housing (1) is provided with clearance holes (3) corresponding to poles (21) of the individual battery cells (2); the poles (21) of the individual battery cells (2) extend out of the corresponding clearance holes (3), and the space between each pole (21) and the corresponding clearance hole (3) is sealed.
Resumen de: WO2026056984A1
The present application relates to the technical field of batteries, and provides a cell, a battery, and an electrical apparatus. The provided cell comprises a casing, a post, and an injection molded member; the casing is provided with a post mounting portion, the post mounting portion is provided with a post mounting hole, at least part of the post passes through the post mounting hole, and there is a gap between a part located in the post mounting hole and the post mounting hole; the injection molded member is disposed around the post and is at least partly located in the gap, so as to connect the post mounting portion and the post; the injection molded member is provided with a glue converging surface, and the position at which a side wall of the post intersects the glue converging surface is a glue converging position; along the circumferential direction of the side wall of the post, the side wall of the post has a planar structure on both sides of the glue converging position; and the included angle between the two planar structures located on both sides of the glue converging position is greater than 120 degrees and less than or equal to 180 degrees. The described solution can solve the problem in the existing technology of low structural strength at the position of a glue converging surface of an injection molded member.
Resumen de: WO2026056861A1
Provided in the present application is a protective case for accommodating a battery cell, the protective case comprising a middle frame, a first cover plate and a second cover plate. The middle frame comprises a plurality of surrounding plates, the plurality of surrounding plates being sequentially connected end to end to form an accommodating space, and the battery cell being accommodated in the accommodating space; the first cover plate covers one side of the accommodating space, and the first cover plate is hermetically connected to the middle frame; and the second cover plate covers the opposite side of the accommodating space, and the second cover plate is hermetically connected to the middle frame. Further provided in the present application are a battery having the protective case and an electronic device.
Resumen de: WO2026055930A1
The present application relates to a novel electrolytic copper foil and a preparation method therefor, and a negative electrode sheet and a secondary battery. The novel electrolytic copper foil comprises at least one copper layer, wherein a through hole array is provided on at least part of the surface of the copper layer; the through hole array is formed by arranging M*N through holes in M rows and N columns; each row of through holes in the through hole array is arranged in an x direction; each column of through holes in the through hole array is arranged in a y direction; the x direction and the y direction intersect and are located on the same plane; the surface area of the copper layer covered by the through hole array is an array area; the surface area of the copper layer not covered by the through hole array is a non-array area; and the weight per square meter of the array area satisfies a certain relational expression. The electrolytic copper foil can effectively solve the problem of lithium ion conduction of traditional copper foils in solid-state batteries, and, when used as a negative electrode current collector of a battery, can effectively improve the performance of batteries, especially solid-state batteries.
Resumen de: WO2026055787A1
The present technology relates to solid polymer electrolyte films comprising a heterogeneous mixture of at least two different polymers and a material providing mechanical support, one of the two polymers being a branched polyether having at least 3 branches. The invention also relates to methods of producing same, as well as to electrochemical cells, batteries and accumulators containing same, and uses thereof.
Resumen de: WO2026055842A1
Methods for filling void spaces (120) include providing a void space (120), disposing in the void space (120) a plurality of shredded foam particles, providing a curable low viscosity resin, with a viscosity of less than 1000 centiPoise, disposing the curable low viscosity resin onto the shredded foam particles to form a resin-filled void space (220), pressing any particles at the surface of the resin-filled void space (220) down into the void space (220) with a compression tool (300), and curing the low viscosity resin. The shredded foam particles are 3-dimensional particles having an average size of no less than 0.1 millimeter, and no greater than 5 millimeters, where the particles comprise at least one sealed cell and the foam particles do not have any connected channels on the surface of the particle.
Resumen de: WO2026055815A1
Embodiments of the present application provide an energy storage apparatus and an energy storage system, capable of regulating the temperature of the energy storage apparatus during the use of the energy storage apparatus, such that the energy storage apparatus is within a normal temperature range. The energy storage apparatus comprises a direct current compartment. At least one battery and a thermal management component are disposed in the direct current compartment. The thermal management component is connected to the at least one battery and is used to regulate the temperature of the at least one battery.
Resumen de: US20260081316A1
A battery assembly includes a battery cell accommodating an electrode assembly and including a first side that includes a first electrode terminal and a second electrode terminal thereon, a protective circuit module above the first electrode terminal and the second electrode terminal, and a connecting portion connecting the first electrode terminal and the second electrode terminal to the protective circuit module, wherein the connecting portion has a foldable structure.
Resumen de: WO2026056509A1
The present application relates to the technical field of secondary batteries, and provides a battery cell, a secondary battery, and an electric device. By using a graphite material having a high initial Coulombic efficiency and an ID/IG ratio of 0.06-0.25 in combination with a silicon-based material as a negative electrode active material, a negative electrode sheet is able to maintain a high initial Coulombic efficiency on the basis of adding the silicon-based material, allowing for combination with a lithium-containing phosphate positive electrode active material having a high initial Coulombic efficiency (generally, the initial Coulombic efficiency of the positive electrode active material is not less than 94%), thereby improving the energy density of the entire battery cell while fully utilizing the characteristics of the high initial Coulombic efficiency of the lithium-containing phosphate, and effectively striking a balance between battery energy density and initial Coulombic efficiency. Moreover, controlling a lithium intercalation specific capacity of the silicon-based material to be 1000 mAh/g-2300 mAh/g allows for a thinner negative electrode active material layer, which enables the negative electrode sheet to have a higher energy density, thereby taking into account both energy density and rate performance.
Resumen de: WO2026056538A1
Provided in the present application are a battery separator and a battery. The battery separator comprises a base membrane and a composite coating arranged on one side of the base membrane, wherein the composite coating comprises a heat-resistant material and an adhesive material; the heat-resistant material forms a layered structure and is attached to the base membrane; and the adhesive material is distributed in the layered structure and satisfies: 1.6≤D50/H≤4.3, and 2.2≤D90/H≤6.6, where D50 is the corresponding particle size at which the cumulative particle size distribution of the adhesive material reaches 50%, with the unit thereof being μm, D90 is the corresponding particle size at which the cumulative particle size distribution of the adhesive material reaches 90%, with the unit thereof being μm, and H is the thickness of the layered structure, with the unit thereof being μm. In the battery separator provided by the present application, by combining the heat-resistant material and the adhesive material to form the composite coating, the coating of the separator is effectively simplified; moreover, by limiting the relationship between the particle sizes of the adhesive material and the thickness of the heat-resistant material, the composite coating has a good binding power, and the thickness of the separator can also be reduced, thereby improving the energy density of a battery.
Resumen de: WO2026056464A1
Provided in the embodiments of the present application are a battery apparatus and an electrical device. The present application can improve the use performance of the battery apparatus. The battery apparatus comprises: a box body, a battery cell and a heat exchange apparatus. The box body is provided with a first accommodating cavity, the battery cell being accommodated in the first accommodating cavity, and the heat exchange apparatus being accommodated in the first accommodating cavity and being arranged close to the battery cell. The heat exchange apparatus is used for performing heat exchange with the battery cell. The heat exchange apparatus comprises a pipe body accommodating a heat exchange medium and a first protective layer arranged on the outer surface of the pipe body, the first protective layer being used for blocking the impact of emissions discharged from the battery cell on the pipe body. The heat exchange apparatus further comprises a second protective layer, the second protective layer being provided between the outer surface of the pipe body and the first protective layer, and/or, the second protective layer being arranged on the inner surface of the pipe body, and the second protective layer being used for thermal isolation for the pipe body.
Resumen de: WO2026056838A1
The present application discloses a novel secondary cylindrical battery (1), comprising a cover plate assembly (11), a casing (13), and a roll core (12). The casing (13) is provided with an opening, so as to communicate with an accommodating space therein. The casing comprises a side wall (131) and a casing bottom cover (132), the casing bottom cover (132) comprises a welding region (1322) and an explosion-proof region (1321), the wall thickness of the welding region (1322) is uniform, the welding region (1322) is welded to the roll core (12), and the explosion-proof region (1321) is located at the center of the casing bottom cover (132). In the novel secondary cylindrical battery provided in the present application, the welding region of the casing bottom cover is welded to the roll core, thus the entire casing is charged to transmit current, the contact area is increased, and the heat dissipation area is increased, thereby resolving safety accidents such as a battery catching fire due to insufficient overcurrent area. In addition, the explosion-prevention region is provided at a central region of the casing bottom cover as an explosion-prevention mechanism. When thermal runaway occurs in the battery, the explosion-prevention region bursts and is not prone to blockage, thereby improving the overall safety of the battery, and also reducing battery processing and manufacturing costs.
Resumen de: WO2026056835A1
A casing (1), a battery cell (2) being accommodated in the casing (1), and the casing (1) comprising a side wall and a bottom cover; the connection point between the side wall and the bottom cover is a connecting portion (4); after the battery cell (2) is accommodated in the casing (1), a bottom corner portion of the battery cell (2) and an inner side surface of the connecting portion (4) do not interfere with one another; the connection point between the side wall and the bottom cover is thinned to form the connecting portion (4); the connecting portion (4) comprises a longitudinal section (42) in a first direction, a transverse section (41) in a second direction, and an arc-shaped section (43) for connecting the longitudinal section (42) and the transverse section (41), the longitudinal section (42) connecting the arc-shaped section (43) and the side wall, and the transverse section (41) connecting the arc-shaped section (43) and the bottom cover; material reduction treatment is performed at the position of an inner rounded corner of the casing (1), so that interference with the battery cell (2) in the casing (1) can be avoided, and the safety of the battery is improved; moreover, the material reduction treatment method reduces the weight of the casing (1) while satisfying molding processing on the casing (1), and improves the energy density of the battery.
Nº publicación: WO2026056797A1 19/03/2026
Solicitante:
D AUS ENERGY STORAGE TECH XIAN CO LTD [CN]
\u53CC\u6FB3\u50A8\u80FD\u79D1\u6280\uFF08\u897F\u5B89\uFF09\u6709\u9650\u516C\u53F8
Resumen de: WO2026056797A1
The present invention belongs to the field of batteries, and specifically relates to a method for restoring lithium-ion battery capacity, comprising step a and step b; step a: over-discharging a lithium-ion battery to be restored, discharging gas from an inner cavity of the lithium-ion battery, and injecting an electrolyte into the inner cavity; and step b: using a lithium replenishment electrode to replenish lithium in the electrodes of the lithium-ion battery to be restored. In the present invention, a lithium-ion battery prior to scrapping treatment is restored and regenerated, combining over-discharging and lithium replenishment without damaging the electrode assembly; the charge and discharge cycle performance of waste lithium-ion batteries is prolonged and the pressure of waste lithium-ion batteries on the environment is reduced, and battery use costs are lowered.
BOPI
Sede Electrónica
