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1121
resultados
Última actualización
23/04/2026 [07:21:00]
Resultados 25 a 50 de 1121
Resumen de: US20260102994A1
A multilayer membrane comprising at least two co-extruded layers where the two co-extruded layer contain different polymers and one of the two co-extruded layers contains an extrusion additive. Examples of useful extrusion additives may include a nucleating agent or a pore-forming particulate. A method for making the membrane is also disclosed. Using an extrusion additive when co-extruding two different polymers avoids some of the drawbacks associated with processes involving the co-extrusion of different polymers, particularly processes where a co-extruded non-porous precursor is later stretched to form pores. For example, the drawback of lower permeability, difficulty to make lower Gurley, and splittiness may be improved.
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: 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: 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: 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: US20260106220A1
0000 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 including polyethylene wax, and a shell surrounding the core, wherein the shell includes a polymer having a melting point of 90° C. to 120° C.
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: 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: WO2026077189A1
The present application relates to the technical field of new energy batteries, and provides a battery assembly and a battery pack. The battery assembly comprises: a plurality of cylindrical batteries, each cylindrical battery comprising a circumferential surface and end faces; a first cold plate and second cold plates, wherein the second cold plates are arranged perpendicular to the first cold plate, the second cold plates are arranged on both sides of the first cold plate, a plurality of arc-shaped recesses are arranged at intervals on two surfaces of each second cold plate, the cylindrical batteries are arranged on the second cold plates, the circumferential surfaces fit with the arc-shaped recesses, the end faces fit with the first cold plate, a first medium flow channel is provided in the first cold plate, and a second medium flow channel is provided in each second cold plate; a liquid collecting pipe used for communicating the second medium flow channels of the two second cold plates; and a liquid inlet and a liquid outlet respectively provided on the two second cold plates. The first cold plate cools the end faces of the cylindrical batteries, and the second cold plates cool the circumferential surfaces of the cylindrical batteries, thereby ensuring heat dissipation of the cylindrical batteries in an axial direction and a radial direction.
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: 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: 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: US20260106234A1
0000 One aspect of an invention is a power receiving apparatus, configured to be able to receive electric power from a plurality of battery units each including a processor configured to control a power feeding function, the power receiving apparatus comprising a plurality of connection portions capable of electrically connecting the plurality of battery units, wherein the plurality of connection portions are configured such that voltages supplied to the plurality of processors of the plurality of battery units have different values when the plurality of battery units are electrically connected to the connection portions
Resumen de: US20260106171A1
0000 This application discloses a positive current collector, a positive electrode plate, an electrochemical apparatus, a battery module, a battery pack, and a device. The positive current collector includes a support layer, having two opposite surfaces in a thickness direction of the support layer; and an aluminum-based conductive layer, disposed on at least one of the two surfaces of the support layer. A thickness D<1 >of the aluminum-based conductive layer is 300 nm≤D<1>≤2 μm; a density of the aluminum-based conductive layer is 2.5 g/cm<3 >to 2.8 g/cm<3>; and when a tensile strain of the positive current collector is 2.5%, a sheet resistance growth rate T of the aluminum-based conductive layer is T≤10%. The positive current collector provided in this application has a relatively small weight and higher electrical performance, so that the electrochemical apparatus provides a higher weight energy density and higher electrochemical performance.
Resumen de: WO2026077228A1
The present application relates to the technical field of battery heat exchange. Specifically provided is a battery pack, comprising a battery module, a battery case, and a heat exchange plate arranged at the bottom of the battery case. A plurality of heat exchange channels are provided inside the heat exchange plate, and partition walls are provided between adjacent heat exchange channels; the partition walls include first partition walls having a relatively large thickness and second partition walls having a relatively small thickness. A fixing beam is connected to the top surface of the heat exchange plate; the extension direction of the fixing beam intersects the extension direction of the partition walls. In the present application, the heat exchange plate eliminates the longitudinal beam structure, and have at least some partition walls between a plurality of heat exchange channels thickened; this not only ensures structural strength to resist external forces, but also reduces space occupation compared with additional welding of longitudinal beams, thereby increasing the energy density in the battery case. In addition, the heat exchange plate in the present application can be formed by means of extrusion, making the manufacturing easier, improving production efficiency.
Resumen de: WO2026077176A1
The present application relates to the technical field of new energy batteries, and discloses a battery and a battery pack. The battery has good heat dissipation performance, can reduce heat accumulation, and alleviates thermal runaway caused by poor heat dissipation of a battery. In the battery of the present application, a battery cell comprises a first tab and a second tab having opposite polarities, wherein the first tab and the second tab are disposed on the same side of the battery cell; and a current collecting assembly comprises a first current collecting member, a second current collecting member, and at least one first through hole, wherein the first through hole is formed in the first current collecting member, the first current collecting member has a first tab connection region and a first pole connection region, the first tab connection region at least partially surrounds the first pole connection region, the first through hole is formed in the first tab connection region, along the radial direction of the first current collecting member, the distance from the first through hole closest to the first pole connection region to the center of the first pole connection region is L1, the distance from a radial outer edge of the first current collecting member to the center of the first pole connection region is L2, and the ratio of the distance L1 to the distance L2 ranges from 0.15 to 0.95.
Resumen de: WO2026076968A1
The present application provides a battery, comprising a cell and an insulating film covering the circumferential side surface of the cell; the cell comprises a positive electrode sheet and a negative electrode sheet; a starting end and a tail end are respectively formed at two ends of the insulating film; on the circumferential side surface of the cell, the tail end of the insulating film is arranged to extend beyond the starting end, so that an overlapping area is formed between the starting end and the tail end; and the product of the dimension of the overlapping area in the circumferential direction of the cell, the elastic modulus of the insulating film, and the cohesion of the negative electrode sheet is in the range of 0.1 to 2000. By adjusting the product of the elastic modulus of the insulating film and the cohesion of the negative electrode sheet, a restraining force applied by the insulating film to the cell is adapted to the cohesion of the electrode sheet, thereby preventing excessive expansion of a cylindrical cell during charging and discharging.
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: 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: US20260103555A1
0000 Glycidyl-containing polymers and polymer compositions comprising them are described, as well as their use in electrode materials and/or as coatings for battery components. Also described are electrode materials, electrodes, electrochemical cells and batteries comprising the polymers and their uses.
Resumen de: US20260106206A1
0000 A network of metal fibers includes a plurality of metal fibers fixed to one another; wherein at least some of the plurality of metal fibers have a length of 1.0 mm or more, a width of 100 μm or less and a thickness of 50 μm or less. A method includes producing a plurality of metal fibers by melt spinning; providing a loose network of metal fibers; and fixating the plurality of metal fibers to one another.
Nº publicación: WO2026076964A1 16/04/2026
Solicitante:
TIANNENG BATTERY GROUP CO LTD [CN]
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Resumen de: WO2026076964A1
An electrolyte for a lead storage battery, and a use thereof, belonging to the technical field of lead storage battery production. Improving the electrolyte by means of adding a surfactant changes the surface tension of the electrolyte, and can thus slow the phenomenon of delamination of the electrolyte from a source. Additionally, the introduced surfactant forms a stable complex by means of capturing lead ions in the electrolyte, thereby preventing the formation of lead dendrites and reducing the risk of short circuits.
BOPI
Sede Electrónica
