Resumen de: WO2026046043A1
An electrode sheet, a battery cell unit, a battery, and an electric device. The electrode sheet comprises a current collector and an active material layer; the current collector comprises a conductive polymer film, and the conductive polymer film is configured to be connected to a polymer material; and the active material layer is provided on at least one surface of the current collector. The electrode sheet has good sealing reliability.
Resumen de: WO2026046041A1
An electrolyte and a battery. The electrolyte comprises a fluorine‑containing oxalic acid lithium salt and a functional additive; the functional additive has a structure as represented by formula (1), wherein R1 is selected from at least one of a linear alkyl group having 1-6 carbon atoms and a substituted or unsubstituted aromatic group; and R2 and R3 are each independently selected from at least one of a halogen atom and a substituted or unsubstituted alkyl group having 1-10 carbon atoms. The electrolyte can ensure that the battery meets high energy density requirements and fast charging requirements, and improve the cycle stability of the battery.
Resumen de: WO2026044873A1
A positive electrode active material and a preparation method therefor, a positive electrode sheet, a battery, and an electrical device, relating to the technical field of batteries. In an XRD pattern of the positive electrode active material, a characteristic peak C(018) corresponding to a (018) crystal plane of the positive electrode active material exhibits a bimodal distribution, comprising a first characteristic peak C1(018) and a second characteristic peak C2(018); and a characteristic peak D(110) corresponding to a (110) crystal plane of the positive electrode active material exhibits a bimodal distribution, comprising a first characteristic peak D1(110) and a second characteristic peak D2(110). IC1 denotes the intensity of the first characteristic peak C1(018), ID1 denotes the intensity of the first characteristic peak D1(110), and 0.80 ≤ ID1/IC1 ≤ 1.00. Thus, the first charge-discharge efficiency, discharge capacity, cycling performance, and safety performance of a battery comprising the positive electrode active material can be effectively improved, and the impedance of the battery can be reduced.
Resumen de: WO2026044769A1
Provided in the embodiments of the present application are a secondary battery and an electrical device. The secondary battery comprises a housing, an electrode assembly and a first tab. The electrode assembly is arranged in the housing, and the electrode assembly comprises a first electrode plate, a second electrode plate and a separator. The first tab is welded to the first electrode plate. The first tab comprises a first surface and a second surface arranged opposite to each other in the thickness direction of the first tab, wherein a partial surface of the first surface is connected to the first electrode plate, and the second surface faces and makes contact with the separator. The first tab further comprises a third surface and a fourth surface, wherein the third surface and the fourth surface are located on two opposite sides of the first tab in the width direction thereof. The included angle between the second surface and the third surface is defined as α, where 120°≤α≤175°; or the third surface is smoothly connected to the second surface. In the secondary battery, the structure of the first tab facilitates a reduction in the pressure of the first tab on the separator at a connection of the second surface and the third surface, thereby reducing the possibility of damage to the separator caused by the first tab, reducing the possibility of a poor K value of the secondary battery, and improving the cycle life of the secondary battery.
Resumen de: WO2026044883A1
An explosion-proof valve and a case, relating to the technical field of explosion-proof valves. The explosion-proof valve is provided on the case, and comprises a valve body, a retaining cap, and a breathing mechanism. A breathing channel is provided on the valve body. The retaining cap is slidably connected to the valve body, and a gap is formed between the retaining cap and the valve body. The breathing mechanism is movably connected to the retaining cap, and a breathing switch is formed between the breathing mechanism and the valve body. When the breathing mechanism abuts against the valve body, the breathing switch is turned on, and the interior of the case is communicated with the outside. When the breathing mechanism is separated from the valve body, the breathing switch is turned off, and the interior of the case is not communicated with the outside.
Resumen de: US20260066440A1
A battery pack according to the present disclosure includes: at least one battery assembly including a plurality of battery cells and having a vent hole on a first direction side; a pack case in which an accommodation space configured to accommodate the battery assembly is formed; and a cooling and venting member disposed on the first direction side of the battery assembly. The cooling and venting member includes a venting unit configured to allow vent gas discharged from the vent hole to flow therethrough, and a cooling unit configured to cool the battery assembly.
Resumen de: US20260066425A1
A battery module includes battery cells arranged in a first direction such that main surfaces of the battery cells are adjacent to each other, a pair of end plates at outermost sides of the battery cells, and a pair of side plates coupled to the pair of end plates and covering side surfaces of the battery cells. Each of the end plates includes a first elastic portion extending across the end plates in a second direction substantially perpendicular to the first direction, and each of the side plates includes a groove overlapping the first elastic portion in the second direction and extending in the first direction.
Resumen de: US20260066431A1
An industrial battery design including a sealed enclosure that can be used in material handling vehicle applications. The enclosure for the industrial battery includes a first piece of bent sheet metal and a second piece of bent sheet metal that is bolted to the first piece of bent sheet metal. The enclosure further includes a metal base plate and a lid assembly that includes a gasket.
Resumen de: US20260066424A1
A traction battery pack assembly includes a cell stack within an interior of an enclosure. The cell stack has a plurality of battery cells disposed along a cell stack axis and at least one thermal barrier disposed along the cell stack axis. The at least one thermal barrier has a plurality of more compressible pieces secured to a plurality of less compressible pieces to establish at least one channel that is configured to communicate a liquid coolant though the cell stack.
Resumen de: US20260066417A1
An electric vehicle (EV) battery configuration is employable for use in numerous EV applications such as racing and recreational marine applications, automotive applications, and aerospace applications, among many other possibilities. In an implementation, the EV battery configuration has—as its main components—a metal frame, a first non-metal casing, a second non-metal casing, and a cooling plate. The first non-metal casing serves to support a multitude of first battery cells, and the second non-metal casing serves to support a multitude of second battery cells. The cooling plate has a location that is generally in-between the first non-metal casing and the second non-metal casing.
Resumen de: US20260066501A1
A secondary battery temperature evaluation apparatus, including a case having an opening in at least one end of the case, an electrode assembly being accommodated in the case, a temperature detector attached to the electrode assembly accommodated in the case, the temperature detector detecting a temperature and outputting a temperature detection signal, and a wire connected to the temperature detector, the wire being exposed after passing from inside to outside of the case and through which the temperature detection signal is transmitted outside of the case.
Resumen de: US20260066283A1
An anode material for a secondary battery, an anode for a secondary battery and a secondary battery are provided. The anode material for the secondary battery includes a plurality of oxide particles and a protection layer. The protection layer covers the plurality of oxide particles, and the material of the protection layer includes carbon.
Resumen de: US20260066260A1
According to embodiments, provided is an electronic device comprising: a first roller; a second roller arranged to face the first roller; and a drive unit that rotatably drives the first roller at a first speed and rotatably drives the second roller at a second speed to form, into a film, a mixture being input between the first roller and the second roller.
Resumen de: US20260066391A1
An immersion-cooled battery module according to an embodiment of the present disclosure includes a battery assembly; a module case having an opening at least at one end and accommodating the battery assembly in an internal space connected to the opening; and a sealing cover that airtightly covers the opening, wherein the battery assembly includes a plurality of sub-battery modules each having a battery cell stack in which a plurality of battery cells are stacked and disposed side by side in one direction; and an insulating block made of an insulating material and disposed between the first sub-battery module and the second sub-battery module adjacent to each other among the plurality of sub-battery modules.
Resumen de: US20260066392A1
A coolant module and a thermal management system including the same are disclosed. The coolant module includes a reservoir tank configured to store a coolant, a valve coupled to a lower side of the reservoir tank and configured to receive the coolant from the reservoir tank and determine a flow direction of the coolant, a manifold plate having a plurality of flow paths in which the coolant flows, and a pump connected to any one of the plurality of flow paths, the pump being configured to transfer the coolant to an external component, in which the valve is coupled to an upper surface of the manifold plate, the pump is provided as a plurality of pumps coupled to a lower surface of the manifold plate, and the coolant discharged from the valve flows along one flow path selected from the plurality of flow paths formed in the manifold plate.
Resumen de: US20260066379A1
A traction battery pack assembly includes a cell stack having a plurality of battery cells and one or more thermal barriers disposed along a cell stack axis. A crossmember is alongside the cell stack. One or more fasteners that secure the one or more thermal barriers to the crossmember. The fasteners can be staples.
Resumen de: US20260066463A1
An ingredient for a secondary cell separator coating material includes a resin which is a reaction product of a modified methylolmelamine condensation resin having an acid group and polyvinyl alcohol, or the modified methylolmelamine condensation resin having the acid group and the polyvinyl alcohol.
Resumen de: US20260066334A1
A lithium-ion secondary battery is a lithium-ion secondary battery including an electrode active material layer, in which the electrode active material layer contains an electrode active material and a binder, the average pore diameter of the electrode active material layer is 1.00 μm or less, and the porosity of the electrode active material layer is 8.8% or less.
Resumen de: US20260066366A1
A battery pack (10) includes a plurality of battery modules (100), an accommodation body (200) that defines an accommodation space (250) accommodating the plurality of battery modules (100), a lower bracket (310) and an upper bracket (320) overlapping in a plurality of stages with at least a portion of the accommodation space (250), and a disconnect switch (410) for disconnecting a circuit electrically connecting the battery modules (100) to each other and provided to the lower bracket (310) and the upper bracket (320).
Resumen de: US20260066355A1
A solid state battery having: a laminated structure in which one or more positive electrode layers and one or more negative electrode layers are alternately laminated with a solid electrolytic layer interposed in between; a positive end face electrode on a first end face of the laminated structure; and a negative end face electrode on a second end face of the laminated structure, wherein (1) at least one of the one or more positive electrode layers has an end portion having a protruding shape protruding toward the positive end face electrode in a sectional view and electrically connected to the positive end face electrode, or (2) at least one of the one or more negative electrode layers has an end portion having a protruding shape protruding toward the negative end face electrode in the sectional view and electrically connected to the negative end face electrode.
Resumen de: US20260066304A1
A battery with excellent cycle characteristics, the battery comprising a cathode layer, an electrolyte layer and an anode layer, wherein the cathode layer comprises a cathode active material and an add-in material; the cathode active material comprises a S element; the add-in material comprises a Cl element and at least one metal element selected from the group consisting of a Mn element, a Y element, a Sn element, a V element, a Nb element and a Ta element; and the add-in material is less than 10% by mass of the cathode layer.
Resumen de: US20260066356A1
A disclosed electrode plate includes: a band-shaped core body having a first principal surface and a second principal surface; and an active material layer formed on each of the first principal surface and the second principal surface. The core body includes a double-side coated part on which the active material layer is formed on each of the first principal surface and the second principal surface, and an exposed part provided continuously with the double-side coated part and on which the active material layer is not formed at least on the first principal surface. The first principal surface on the exposed part has an identification indication part formed thereon in a region within 90% of an area located toward a center in a width direction of the core body.
Resumen de: WO2026045376A1
Embodiments of the present disclosure provide a heat exchange assembly, a battery apparatus, an electric device, and an energy storage device. The battery apparatus comprises a case assembly, a battery cell assembly, and a heat exchange assembly. The battery cell assembly is arranged in the case assembly. The heat exchange assembly is used for heat exchange with the battery cell assembly. The heat exchange assembly comprises rigid connectors and at least two flexible members, wherein the at least two flexible members are stacked, a heat exchange flow channel is formed between the flexible members, and the heat exchange flow channel is used for conducting a heat exchange medium. Each rigid connector is provided with a connection channel, the rigid connectors are connected to the flexible members, and the connection channels are communicated with the heat exchange flow channel. The heat exchange assembly of the battery apparatus provided in the embodiments of the present disclosure can be communicated with the outside by means of the rigid connectors, thereby realizing heat exchange with the battery cell assembly; moreover, the energy density of the battery apparatus can be improved, and the degree of fit between the heat exchange assembly and the case assembly and/or the battery cell assembly can also be improved, thereby improving the heat exchange efficiency and heat exchange effect of the heat exchange assembly.
Resumen de: WO2026045319A1
A lithium metal battery cell and a preparation method therefor, a preparation method for a positive electrode sheet, a battery apparatus and an electrical apparatus. The lithium metal battery cell comprises a lithium metal negative electrode sheet, an electrolyte and a positive electrode sheet; the positive electrode sheet comprises a positive electrode current collector and a positive electrode active material film layer provided on at least one side of the positive electrode current collector; the positive electrode active material film layer comprises a lithium-conducting binder, a lithium salt, and a liquid plasticizer; and the film-like liquid plasticizer is comprised between the positive electrode active material film layer and the electrolyte.
Nº publicación: WO2026045296A1 05/03/2026
Solicitante:
BYD CO LTD [CN]
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Resumen de: WO2026045296A1
A battery cell (100) and a battery pack having same, and an electric device. The battery cell (100) comprises a casing, a first terminal post (3), a second terminal post (4) and an electrical connector (5), wherein in a first direction, the first terminal post (3) and the second terminal post (4) are distributed at two ends of the casing; the electrical connector (5) is arranged on the casing; in the first direction, the electrical connector (5) and the second terminal post (4) are located at the same end of the casing; and the electrical connector (5) and the first terminal post (3) are electrically connected by means of an extension member (6) extending in the first direction in the casing.