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1317
resultados
Última actualización
26/04/2026 [07:23:00]
Resultados 625 a 650 de 1317
Resumen de: US20260106207A1
Provided are an additive for a rechargeable lithium battery, an electrolyte a rechargeable lithium battery including the same, and a rechargeable lithium battery, the additive including a core, and a shell surrounding the core, wherein the core includes a flame retardant, a fire extinguishing agent, a non-combustible material, or a combination thereof, and the shell includes a polymer having a melting point of 90° C. to 120° C.
Resumen de: US20260106311A1
A battery including a gas discharge mechanism that discharges when a gas pressure in a battery container reaches a predetermined value. The gas discharge mechanism includes a first gas discharge passage connected to an inner portion side of the battery container, a second gas discharge passage connected to the first gas discharge passage and connected to an outer portion side of the battery container, and a gas discharge valve as part of a gas discharge passage comprising the first and second gas discharge passages and opens so that the inner and outer portion sides of the battery container are connected to each other when gas pressure reaches a predetermined value. A cross-sectional shape of the second gas discharge passage is formed in a shape that does not hinder the flow of a streamline of the gas that flows out of the first gas discharge passage.
Resumen de: US20260106151A1
An electrode material includes a particle group of a coated active material. The coated active material includes an active material and a coating layer coating at least a part of a surface of the active material and including a first solid electrolyte. The electrode material satisfies at least one of the following (i) to (iii). (i) A thickness Tc of the coating layer calculated by averaging median values in thickness distributions of a plurality of particles is 1.0 nm or more and 100.0 nm or less.(ii) A thickness Ta of the coating layer calculated by averaging average values in thickness distributions of a plurality of particles is 9.0 nm or more and 100.0 nm or less.(iii) A thickness Tq of the coating layer calculated by averaging first quartiles in thickness distributions of a plurality of particles is 2.5 nm or more and 50.0 nm or less.
Resumen de: WO2026077190A1
The present application relates to the technical field of new energy batteries, and discloses a battery apparatus and a battery pack. According to the battery apparatus, the pin order of an output terminal is consistent with the pin order of a port of a battery management assembly, which facilitates the electrical connection between the output terminal of the battery apparatus and the port of the battery management assembly, and enhances the structural strength of the output terminal, facilitating an insertion operation between the output terminal and the port of the battery management assembly. The battery apparatus of the present application comprises a main wiring harness, an output terminal, and an adapter circuit board. A plurality of wires are arranged within the main wiring harness. The output terminal is arranged at at least one end of the main wiring harness, and the output terminal is directly electrically connected to a battery management assembly. The adapter circuit board is arranged between the main wiring harness and the output terminal. A signal input port of the adapter circuit board is electrically connected to the main wiring harness. A signal output port is electrically connected to the output terminal. An output branch is arranged between the adapter circuit board and the output terminal. The ratio of the thickness of the adapter circuit board to the length of the output branch along the extension direction of the output branch ranges from 0.003 to 0.06.
Resumen de: WO2026077039A1
The present application relates to the technical field of batteries, and in particular to a battery cell and a battery pack. The battery cell comprises: a casing. A cover plate is welded and connected to the casing to form a weld portion between the casing and the cover plate, and the projected area of the weld portion on the cross section of the casing perpendicular to the depth direction of the casing is S1. A boss portion extending into the casing is formed on the cover plate, and the area enclosed by the outer periphery of the boss portion is S2. The tensile strength of the cover plate is U, (I). According to the present application, by limiting the relationship between S1, S2, and U to satisfy (I), the welding strength between the casing and the cover plate is ensured, and the weld portion is prevented from cracking, thereby ensuring the airtightness of the battery cell, ensuring the use safety of the battery cell, and improving the safety of the battery pack.
Resumen de: WO2026076928A1
The present invention provides an integrated silicon-carbon composite negative electrode material and a preparation method therefor. The integrated silicon-carbon composite negative electrode material comprises a carbon-based material matrix, a silicon-carbon composite layer distributed on the surface of the matrix, and an amorphous carbon layer covering the surface of the silicon-carbon composite layer. In the present invention, first vapor deposition is performed, and halogen gas is used to perform heat treatment for conversion so as to form a porous carbon layer having high thickness uniformity, and then amorphous silicon is deposited into pores by means of second vapor deposition. The integrated material prepared by means of the method uses a silicon lattice of silicon carbide to generate pores, thereby solving the problems of non-uniformity and poor stability in the current porous carbon activation process. There is certain bonding at the interface between the porous carbon and graphite, which facilitates connection of a silicon-carbon negative electrode with the surface of the graphite during expansion without detachment.
Resumen de: US20260106221A1
0000 The present invention relates to a composition comprising a) at least one fluorinated acyclic carboxylic acid ester and b) at least one halogenated benzene, and to a lithium secondary battery comprising the composition in a liquid electrolyte. The present invention also relates to use of the composition in a liquid electrolyte for a lithium secondary battery.
Resumen de: US20260103568A1
A polyarylethersulfone (‘PAES’) copolymer, a process for preparing the PAES copolymer, an article such as a film, fiber, membrane or a part thereof comprising the PAES copolymer, the use of the PAES copolymer in the preparation of an article, a polymer solution comprising the PAES copolymer, and a method for using such article for aqueous medium treatment. The PAES copolymer is a random polymer which comprises at least two types of recurring units, one of which being derived from condensation of a diol and a dihalogenated alkylene oxide, while the other type of recurring units is derived from condensation of the same diol and a dihalodiphenylsulfone. The diol may be aromatic or alicyclic. The dihalogenated alkylene oxide preferably has at most 9 carbon atoms and/or at most 4 oxygen atoms.
Resumen de: US20260106276A1
0000 A power storage device includes an electrode body, an electrode terminal connected to the electrode body, and an exterior body that seals the electrode body. The exterior body is configured from a film-like exterior member and includes a first sealing portion joined to the exterior member in a state where the exterior member envelops the electrode body. The exterior member includes a barrier layer. The power storage device has a resin film for a power storage device disposed at least partially inwards of the barrier layer. The resin film for a power storage device includes at least one among a water absorbent and a gas absorbent.
Resumen de: US20260106211A1
0000 A solid electrolyte separator for an electrochemical storage device is described. The solid electrolyte separator comprises: an electrolyte comprising a lithium-ion conductive compound; and a binder comprising a copolymer, wherein the lithium-ion conductive compound comprises sulfur, and the copolymer has a repeating unit comprising a carboxylic acid group or a conjugate base thereof. Also described is a masterbatch product, a method of manufacturing the solid electrolyte separator and an electrochemical storage device.
Resumen de: WO2026076966A1
The present application relates to the technical field of batteries. Disclosed are a battery module and a battery pack. The battery module comprises: battery cells provided with pressure relief valves; and wire harness boards, which form slit portions, the projection of each slit portion facing a first surface at least partially overlapping with each pressure relief valve. The dimensions of residual portions are defined as a; and in the direction of width of the slit portions, the width of the slit portions is defined as b , and the dimensions of the pressure relief valves are defined as c, wherein a, b and c satisfy: c>b, and 0.01≤b/a≤12. In the battery module provided in the present application, by means of defining the range of the ratio of the width b of the slit portions to the dimensions a of the residual portions, when the ratio is excessively large, it indicates that the slit portions are excessively wide and the residual portions are excessively short, making a pressure relief piece easily fly out; and when the ratio is excessively small, it indicates that the slit portions are excessively narrow and the residual portions are excessively long, thereby being unfavorable for the diffusion of a high-temperature media.
Resumen de: WO2026077230A1
The present application relates to the technical field of circuit boards, and specifically provides a circuit board assembly for a battery apparatus. The circuit board assembly comprises a circuit board main body, a branch structure, and a fixing plate. The circuit board main body comprises a plurality of parallel wires. The branch structure comprises a branch connection portion and a sampling portion. The sampling portion is used to collect battery information. The branch connection portion is provided with through holes, and a welding spot is formed within at least one through hole and is welded to a wire. The fixing plate is connected to the branch connection portion, the width of the fixing plate is W1, and the diameter of the through holes is R, such that 0.01≤R/W1≤2. In the present application, the branch connection portion is welded to a wire of the circuit board main body by means of a through hole having a welding spot, and is reinforced by using the fixing plate, so as to prevent bending and warping of the branch connection portion due to heat during welding. In addition, the ratio of the diameter of the through holes to the width of the fixing plate is properly designed, so that a sufficient fixing effect can be achieved for the branch connection portion, thus the occurrence of bending or even folding is eliminated, and welding is also made reliable, and large local resistance is prevented.
Resumen de: WO2026077205A1
The present application relates to the technical field of battery devices. Disclosed is a battery device, comprising a case, wherein at least one cross beam structure is fixedly connected in a cavity of the case, and divides the cavity into at least two accommodating cavities; a battery pack is arranged in the accommodating cavity, and the battery pack comprises at least two battery cells that are arranged in sequence in a first direction; a terminal post of each battery cell is arranged at one end of the battery cell in a second direction; protruding end faces of the terminal posts of the battery cells are arranged perpendicular to a bottom plate; a busbar is arranged between the battery pack and the cross beam structure, and is arranged opposite the cross beam structure; the terminal posts of two adjacent battery cells are connected to each other by means of the busbar; the first direction is perpendicular to the second direction; and a ratio A of the width L1 of the cross beam structure in the second direction to the length L2 of the battery cells in the second direction satisfies 0.15≤A≤0.4. The battery device provided in the present application not only prevents insufficient space utilization caused by an excessively large ratio A, but also prevents insufficient support strength for the battery cells when the ratio A is excessively small.
Resumen de: US20260106132A1
An electrode notching apparatus includes a notching unit configured to form an electrode tab at a non-coated portion of an electrode sheet; a rewinder roller where a connecting sheet is wound; a splicing table whereon the electrode sheet and the connecting sheet are placed a camera unit configured to photograph positions of the electrode sheet and the connecting sheet placed on the splicing table; a guide pointer unit configured to indicate a first reference position of the electrode sheet and a second reference position of the connecting sheet; and a position alignment unit configured to adjust positions of the splicing table and the rewinder roller such that the electrode sheet is aligned with the first reference position and the connecting sheet is aligned with the second reference position. An electrode manufacturing method is also provided herein.
Resumen de: US20260106143A1
Embodiments of the present disclosure include an anode for a battery including a substrate, a metal film disposed on the substrate, and a film stack disposed on the metal film. The film stack includes a lithium carbonate film and a lithium halide film disposed on the lithium carbonate. The lithium carbonate film is disposed on the metal film.
Resumen de: WO2026077239A1
Provided in the present application are a battery cell and an electric device. The battery cell comprises an electrode assembly, wherein the electrode assembly is formed by winding a positive electrode sheet, a separator and a negative electrode sheet which are stacked, the outermost electrode sheet being the positive electrode sheet; the positive electrode sheet comprises a double-sided coated region, a single-sided coated region and a double-sided bare foil region which are sequentially arranged from the start to the end of winding; a first adhesive tape of the battery cell is attached to the side of the single-sided coated region where no active material layer is provided, and at least part of the first adhesive tape is arranged on the positive electrode sheet in the second turn from the outside to the inside of the battery cell; in the direction of winding, the first adhesive tape extends beyond a first edge of the double-sided bare foil region away from the single-sided coated region; and in the direction of a winding axis, the first adhesive tape extends beyond a second edge and a third edge of the double-sided bare foil region. The capacity of the battery cell is less than 3 Ah. The risk of a short circuit due to contact between an edge of the double-sided bare foil region and the negative electrode sheet is reduced, thereby improving the safety of the battery cell; moreover, the first adhesive tape does not increase the thickness of the battery cell, thereby helping i
Resumen de: WO2026076730A1
The present invention belongs to the field of batteries, and provides a positive electrode material and a preparation method therefor, a positive electrode sheet, and a sodium-ion battery. The positive electrode material comprises an inner core, the inner core comprises sodium iron phosphate pyrophosphate and optional sodium iron phosphate, and the mass ratio of sodium iron phosphate to sodium iron phosphate pyrophosphate in the positive electrode material is (0-0.15):(99.85-100). The present invention is beneficial for improving the capacity and cycle performance of the positive electrode material and the sodium-ion battery.
Resumen de: WO2026077250A1
The present application provides a battery pack case and a battery pack. The battery pack case comprises a bottom plate and a surrounding frame surrounding the bottom plate, the bottom plate and the surrounding frame forming an accommodating space for accommodating a battery. A connecting beam is welded to the side of the surrounding frame away from the accommodating space, a through hole being provided on the connecting beam. The axis of the through hole is perpendicular to the bottom plate, and an annular gasket is attached to at least one side surface of the through hole. The annular gasket has a central hole, the area of the central hole being less than the area of the through hole, and the annular gasket covering part of the through hole. The length of a welding seam between the connecting beam and the surrounding frame, the length of the connecting beam, and the diameter of the through hole satisfy the following relationship: C=A/B. After the connecting beam is welded to the surrounding frame, the annular gasket is attached to the connecting beam, and part of the through hole is covered. Therefore, by ensuring the precision of the central hole of the annular gasket relative to the connecting beam, the precision of the through hole relative to the connecting beam is ensured.
Resumen de: WO2026077182A1
The present application provides a battery apparatus. The battery apparatus comprises: a bottom plate, the bottom plate having a side plate, the side plate and the bottom plate being arranged at an angle and arranged in integral connection, the bottom plate and the side plate forming an accommodating space for accommodating a battery, and the top of the side plate having a flange extending toward the accommodating space; and at least one frame, which is arranged at the edge of the bottom plate. The at least one frame is arranged on an inner side of the side plate close to the accommodating space, the side plate covering an outer side surface of the frame, and the flange covering at least part of a top surface of the frame. The frame has two side portions facing the accommodating space and facing away from the accommodating space, a cavity being formed between the two side portions, a through hole being provided on the side of the frame close to the accommodating space, the outer side surface of the frame being welded to the side plate, and/or the top surface of the frame being welded to the flange. The bottom plate of the battery apparatus is configured to be basin-shaped, so that the bottom plate and the side plate are an integrated structure, and the sealing performance is good.
Resumen de: WO2026077229A1
The present application relates to the technical field of batteries, and discloses a battery case and a battery pack. The battery case comprises a bottom plate, side members, and a cover plate; the side members and the bottom plate jointly define a battery accommodating space; the cover plate is fixed to at least one side member by means of fasteners; the side member has a connecting surface; the connecting surface has a first fixing surface and second fixing surfaces; the first fixing surface is arranged parallel to the bottom plate; the second fixing surfaces are arranged at an included angle with respect to the bottom plate; the height H of the second fixing surfaces in a direction perpendicular to the bottom plate is 200-250 mm. By changing the angle of part of the connecting surface of the side member, the fastening direction of the fasteners at the second fixing surfaces forms an included angle with the vibration direction of the battery case during vibration, thereby enhancing the connection strength of the fasteners, making the cover plate and the side member fixed reliably, ensuring the sealing performance between the side member and the cover plate. The height H of the second fixing surfaces is set to 200-250 mm, thereby ensuring the fixing effect and avoiding waste in costs.
Resumen de: US20260106231A1
0000 A battery cell may include a first electrode coupled with a first current collector, a second electrode coupled with a second current collector, and a separator interposed between the first electrode and the second electrode. The battery cell may further include a current controller including one or more shape memory effect (SME) materials in a deformed conformation. The shape memory effect (SME) materials may recover at least partially an original conformation of the shape memory effect (SME) materials in response to one or more stimuli. The current controller may have a lower conductivity when the shape memory effect (SME) materials are in the original conformation than when the shape memory effect (SME) materials are in the deformed conformation such that the shape memory effect (SME) materials recovering the original conformation reduces current flow within the battery cell.
Resumen de: US20260106199A1
A device for producing an electrode stack containing flat electrode elements includes a stacking wheel, which is mounted to rotate about a stacking wheel axis and has a plurality of stacking wheel fingers, which define respective intermediate spaces for receiving the electrode elements, and a wiper unit, which is designed to remove the electrode elements one after the other from the respective intermediate spaces through interaction with a rotational movement of the stacking wheel about the stacking wheel axis. The device furthermore includes a receiving unit for successively receiving the electrode elements removed from the intermediate spaces. The receiving unit has a base structure, on which the electrode elements received in the receiving unit can be stacked, and a delimiting element, which forms an end stop for the electrode elements received in the receiving unit and which is arranged statically in relation to the stacking wheel axis.
Resumen de: US20260106290A1
0000 A battery pack case is disclosed. The battery pack case of the present disclosure may include: a bottom plate; a side case extending upward from a periphery of the bottom plate, and forming an accommodation space together with the bottom plate; and a partition unit positioned on an upper surface of the bottom plate, and configured to partition the accommodation space, wherein the partition unit includes: a partition support module coupled to the bottom plate; and a partition insulation module coupled to the partition support module, and forming an insulation space as a hollow section therein.
Resumen de: US20260106165A1
A secondary battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte having lithium ion conductivity. The negative electrode includes a negative electrode current collector. The negative electrode current collector includes a resin film, and a transition metal layer laminated with the resin film. The resin film includes a base resin layer, and a surface resin layer, and at least the surface resin layer contains a nitrogen-containing resin.
Nº publicación: US20260106213A1 16/04/2026
Solicitante:
TOAGOSEI CO LTD [JP]
Resumen de: US20260106213A1
The present invention provides a novel zirconium phosphate-based oxide exhibiting high Li conductivity and a method for producing the oxide. The present invention further provides a solid electrolyte and a power storage device using the oxide. An oxide satisfying formula (1) below: Li1+x+y−zM1xZr2−xM2yM3zP3−y−zO12 . . . (1) (in formula (1), M1 contains Fe or In, M2 contains Si, M3 contains W, and x>0, y≥0, z≥0, and y+z>0 are satisfied).
BOPI
Sede Electrónica
