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835
resultados
Última actualización
14/07/2026 [08:42:00]
Resultados 50 a 75 de 835
Resumen de: WO2026144314A1
The present application provides a battery apparatus and an electrical device. The battery apparatus comprises at least one battery cell assembly, each battery cell assembly comprising a plurality of battery cells and a plurality of first fireproof plates. The plurality of battery cells are arranged in a first direction, each battery cell comprising a first wall and a pressure relief mechanism arranged on the first wall. The plurality of first fireproof plates are arranged in the first direction and are arranged in one-to-one correspondence with the plurality of battery cells. The plurality of first fireproof plates are independent of each other, and the plurality of first fireproof plates are respectively stacked on the first walls of the plurality of battery cells, covering the pressure relief mechanisms. When high-temperature gas is ejected from an explosion-proof valve due to thermal runaway of a certain battery cell, because the first fireproof plates are independent of each other, other surrounding first fireproof plates are not easily blown around by the high-temperature gas, and can still have an effective protective effect, thereby reducing the possibility of causing thermal runaway of other battery cells, and improving the safety and reliability of the entire battery apparatus.
Resumen de: WO2026147111A1
The present invention relates to a secondary battery in which weld strength during welding is improved due to surface-treating a welding area to be welded on a current collector plate by laser etching to remove oil from the surface such that the dyne pen level and surface tension of the welding area are higher than those of other areas. One embodiment of the present invention provides a secondary battery comprising: an electrode assembly having a first electrode plate, a separator, and a second electrode plate; a case accommodating the electrode assembly and having an open bottom; a terminal coupled to the case by penetrating the top surface; a first current collector plate interposed between the top surface of the electrode assembly and the case and electrically connecting the first electrode plate and the terminal; and a cap plate sealing the bottom of the case, wherein a welding area of the first current collector plate to be welded to the electrode assembly has greater surface tension than other areas.
Resumen de: WO2026148349A1
Methods and systems are disclosed for charging a battery utilizing a negotiable power supply in which a source device providing the negotiated power signal and a sink device negotiate the signal. The sink device includes a controller to request a shaped power signal from the source device. More particularly, the source device may receive a power signal from a power source, such as a wall outlet and convert the power signal into a requested negotiated power signal. During the communication between the devices, the sink device may provide one or more parameters of a negotiated power signal. In response, the source device may control a power converter circuit to convert the power signal received from the power source into a shaped negotiated power signal that includes the parameter. In general, the negotiated power signal may take any shape as requested by the sink device.
Resumen de: WO2026143656A1
The present application relates to a battery cell, a battery device and an electrical device, and belongs to the technical field of batteries. The battery cell comprises a housing and an electrode assembly; the housing contains an electrolyte; the electrolyte has lithium ions; the housing is provided with a positive electrode lead-out portion; the electrode assembly comprises a positive electrode sheet; the positive electrode sheet comprises a positive electrode current collector, a positive electrode conductive member and a positive electrode active material layer; an aluminum layer comprises a main body portion and a connection portion; at least part of the main body portion is covered with the positive electrode active material layer, and the connection portion is not covered with the positive electrode active material layer; the connection portion comprises a first connection sub-portion and a second connection sub-portion; the first connection sub-portion is connected between the main body portion and the second connection sub-portion; the positive electrode conductive member is electrically connected to the surface of the second connection sub-portion facing away from a support substrate; the positive electrode sheet further comprises a blocking member; the blocking member covers at least a partial region of the surface of the first connection sub-portion facing away from the support substrate.
Resumen de: US20260196463A1
0000 The present disclosure relates to a method of manufacturing an electrode assembly, an electrode assembly manufactured thereby, and a battery cell including the same. According to an embodiment, the method of manufacturing an electrode assembly may include: a conveying step of conveying an electrode sheet; a first rolling step of rolling the electrode sheet conveyed in the conveying step; and a winding step of winding the electrode sheet rolled in the first rolling step, wherein the winding step may be performed such that a region of the electrode sheet rolled in the first rolling step is wound within 10 minutes.
Resumen de: US20260192704A1
0000 A system performs a method of balancing battery cells of a battery pack. The system includes a plurality of battery managers, a plurality of regulators and a processor. The battery cells are grouped into a plurality of groups. A battery manager estimates a state of charge (SOC) of a battery cell. A regulator controls a group. The processor identifies a target battery cell having a global minimum SOC (target SOC), identifies a target group that includes the target battery cell and a non-target group that does not include the target battery cell, and balances the battery cells by reducing the SOC of the non-target group until a minimum SOC of the non-target group is equal to the target SOC by removing a same SOC from each battery cell in the non-target group and adjusting the SOCs within the non-target group to meet a selected group target for the non-target group.
Resumen de: WO2026145667A1
A lithium-ion battery and an electric device. The lithium-ion battery comprises a positive electrode sheet, a negative electrode sheet, and an electrolyte; the positive electrode sheet comprises a positive electrode current collector and a positive electrode active layer located on at least one surface of the positive electrode current collector; a positive electrode active material of the positive electrode active layer comprises a lithium-containing transition metal oxide, the lithium-containing transition metal oxide comprises a Ni element, and the molar amount of the Ni element accounts for 90% or more of the total molar amount of transition metal elements in the lithium-containing transition metal oxide; the residual lithium content of the positive electrode active material is less than or equal to 2000 ppm; the electrolyte comprises an electrolyte salt, and the electrolyte salt includes lithium bis(fluorosulfonyl)imide.
Resumen de: WO2026143477A1
Provided in the present application are a silicon-carbon negative electrode material and a preparation method therefor. The silicon-carbon negative electrode material comprises: single silicon-carbon particles, wherein each single silicon-carbon particle comprises a carbon matrix and doped amorphous silicon, the carbon matrix comprises a carbon framework and channels located inside the carbon framework, the channels are partially filled with the doped amorphous silicon, the beneficial doping coefficient of a doping element in the doped amorphous silicon is greater than or equal to 25 and less than or equal to 48, and the beneficial doping coefficient is determined by the carrier concentration of the silicon-carbon negative electrode material and the mass proportion of the doping element in the doped amorphous silicon; and a first coating layer, wherein the first coating layer is a carbon coating layer and coats the surfaces of the single silicon-carbon particles. The silicon-carbon negative electrode material and the preparation method therefor significantly improve the conductivity of amorphous silicon deposited in the carbon framework, thereby significantly improving the conductivity and fast charging performance of the silicon-carbon negative electrode material.
Resumen de: WO2026143554A1
The present application provides a battery device and an electric device. The battery device comprises a box body and a plurality of battery assemblies; the plurality of battery assemblies are accommodated in the box body; each battery assembly comprises a housing and a plurality of solid-state batteries; the housing is provided with a first output portion and a second output portion having opposite polarities; the first output portion and the second output portion are both electrically connected to the solid-state batteries; the plurality of solid-state batteries are accommodated in a sealed space of the housing. The present application can reduce the risk of leakage of harmful gases such as hydrogen sulfide generated by the solid-state batteries, thereby improving the reliability and use reliability of the battery device; compared with a battery device in which the housing is omitted and the solid-state batteries are directly accommodated in the box body, due to the presence of the housing, the box body in the present solution only needs to satisfy basic sealing requirements of the battery device, and the difficulty of forming the sealed space by the housing is lower than the difficulty of sealing the box body, thereby reducing the sealing difficulty of the battery device, and further reducing the production difficulty of the battery device.
Resumen de: WO2026143720A1
A battery cell, a battery device, and an electric device. The battery cell comprises a casing assembly, pole assemblies, a cell assembly, and an insulating support; the casing assembly has an accommodating cavity and comprises a first casing wall; each pole assembly comprises a pole body and a clamping structure, the clamping structure clamps the pole body, and the clamping structure is connected to the first casing wall; the insulating support comprises a support body and support members; first through holes are formed on the support body; conductive portions respectively pass through the corresponding first through holes; and each support member supports the side of the corresponding conductive portion facing a corresponding active substance coating portion.
Resumen de: US20260196487A1
The present disclosure provides a positive plate, and a method for collecting positive electrode materials included in the positive plate.The positive plate disclosed herein includes an electrode sheet and a positive electrode mixture layer containing a positive electrode active material, in which a water-soluble adhesive layer containing a water-soluble binder and a conductive material is interposed between the electrode sheet and the positive electrode mixture layer.
Resumen de: WO2026143998A1
The present application provides a solid-state battery, a positive electrode active material, and an electric device. The solid-state battery comprises a positive electrode material, and the positive electrode material comprises a positive electrode active material, a first electrolyte layer coated on a surface of the positive electrode active material, and a second electrolyte layer coated on a surface of the first electrolyte layer; the material of the first electrolyte layer comprises a compound having a general formula of Li1+x1+2z1Ay1Bz1Sa1Cl6-2a1-b1Fb1; and the material of the second electrolyte layer comprises a first sulfide electrolyte. The solid-state battery has a good cycling performance and rate performance.
Resumen de: WO2026144307A1
Disclosed in the present application are a cylindrical battery and a manufacturing method therefor, a battery module and an electrical device. The cylindrical battery comprises a casing, an end cover, an electrode assembly, a first insulator, a second insulator and a third insulator. The electrode assembly comprises an electrode main body of a winding structure and a first tab, at least part of the first tab protruding from a first end surface of the electrode main body facing the end cover, and being connected to the end cover. The first insulator is arranged along the outer periphery of the electrode main body and is connected to the electrode main body, and the first insulator covers at least part of the tail end of the electrode main body in a winding direction. The second insulator covers at least part of the end portion of the electrode main body close to the first tab from the outside, part of the first insulator being located between the second insulator and the electrode main body. The third insulator covers the first tab from the outside, at least part of the second insulator being located between the electrode main body and the third insulator, and, in the axial direction of the cylindrical battery, part of the third insulator being located between the first tab and the end cover.
Resumen de: WO2026144557A1
The present application relates to a solid-state battery and a preparation method therefor, and an electric apparatus. The solid-state battery comprises a positive electrode layer, wherein the positive electrode layer comprises a positive electrode active layer, the positive electrode active layer comprises a composite coated positive electrode material, the composite coated positive electrode material comprises a positive electrode active core and a coating layer located on the surface of the positive electrode active core, and the coating layer comprises a carbon conductive substance and a conductive polymer. The solid-state battery has significantly improved cycle performance.
Resumen de: WO2026143514A1
The present application is applicable to the technical field of batteries, and provides a power distribution apparatus (30), a battery apparatus (100) and an electrical apparatus. The power distribution apparatus (30) comprises a first sampling assembly (31) and a second sampling assembly (32); the first sampling assembly (31) comprises a first sampling structure (311) and a first electrical connection structure (312) connected to the first sampling structure (311), the first sampling structure (311) being connected to a device to be measured; the second sampling assembly (32) is connected to the first sampling structure (311). In the power distribution apparatus (30) provided in the embodiments of the present application, by means of the first sampling structure (311), the first sampling assembly (31) of the power distribution apparatus (30) is connected to a device to be measured, and the second sampling assembly (32) is connected to the first sampling structure (311), such that both the first sampling assembly (31) and the second sampling assembly (32) can be connected to said device by means of the first sampling structure (311), thereby simplifying the connection structure between each sampling assembly in the power distribution apparatus (30) and said device, and reducing space occupation.
Resumen de: WO2026146745A1
An anode for a sodium secondary battery, according to the present invention, comprises: an anode current collector including an uncoated portion; and an anode coating layer disposed on the anode current collector, wherein the surface roughness (Spc) of the uncoated portion is 1600(1/mm) to 1950(1/mm) and refers to an arithmetic mean peak curvature specified in ISO 25178-2, and the anode current collector includes at least one of aluminum (Al) and an aluminum (Al) alloy.
Resumen de: WO2026143891A1
A battery, comprising a battery cell. The battery cell comprises an electrode sheet (1) wound into a plurality of turns, and the electrode sheet (1) has a plurality of tabs (11) folded towards the center of an end surface of the battery cell; in the unfolded structure of the electrode sheet (1), from a first side (12) to a second side (13), the widths of the plurality of tabs (11) change in a gradient manner, and the heights of the plurality of tabs (11) change in a gradient manner, wherein the first side (12) and the second side (13) are two opposite sides of the unfolded structure of the electrode sheet (1) in the length direction. Also provided is a die-cutting processing method for the tabs.
Resumen de: WO2026146854A1
A tape attachment device for a battery pack according to an embodiment of the present invention comprises: a device body on which a battery pack to which a tape is temporarily fixed is seated; and a roller unit provided on the device body and including at least one roller for attaching the tape to at least one edge of the battery pack, wherein the roller unit is configured to be movable between a first position at which the tape can be pressed for attachment of the tape and a second position at which at least one roller is exposed such that the at least one roller is replaced.
Resumen de: WO2026146970A1
The present invention relates to a positive electrode active material, and a positive electrode and a lithium secondary battery comprising same, the positive electrode active material being capable of improving the performance of a lithium secondary battery and comprising a lithium iron phosphate-based compound in the form of primary particles or secondary particles, wherein the value (X) according to equation 1 described in the present specification is 20.0000 nm to 27.000 nm.
Resumen de: WO2026144906A1
An electrolyte, a battery, and an electrical device. The electrolyte comprises a first additive, the first additive comprising a compound represented by general chemical structural formula I: In formula I, R1 and R2 are independently selected from a hydrogen atom, a halogen atom, a C1-C10 alkyl group, a C1-C10 alkoxy group, a C2-C10 carboxylate group, a C2-C10 carbonate group, a C1-C10 fluoro- or bromo-substituted alkyl group, a C1-C10 fluoro- or bromo-substituted alkoxy group, a C2-C10 fluoro- or bromo-substituted carboxylate group, a C2-C10 fluoro- or bromo-substituted carbonate group, a group represented by general chemical structural formula II, or a group represented by general chemical structural formula III: In formula II and formula III, m and n are each natural numbers greater than or equal to 0.
Resumen de: WO2026144914A1
An electrolyte, a sodium metal battery cell, a battery apparatus, and an electric apparatus. The sodium metal battery cell comprises the electrolyte. The electrolyte comprises an electrolyte salt, a non-fluorinated linear ether solvent, and a metal ion additive; the electrolyte salt has a concentration of 0.5 mol/L to 1.5 mol/L; the metal ion additive has a concentration greater than 0.0005 mol/L and less than 1.0 mol/L; and a cation of the metal ion additive includes an alkali metal ion other than a sodium ion, or an alkaline earth metal ion, and an anion of the metal ion additive comprises one or more of sulfate, acetate, formate, phosphate, oxalate, borate, citrate, niobate, tetrafluoroborate, difluoro(oxalato)borate, perchlorate, hexafluorophosphate, trifluoromethanesulfonate, iodate, bis(fluorosulfonyl)imide, arsenate, carbonate, or tantalate. In this way, improved high-temperature storage performance is achieved.
Resumen de: WO2026144934A1
The present application provides a sodium metal battery cell, a battery device and an electric device. The sodium metal battery cell comprises an electrolyte. The electrolyte comprises an electrolyte salt, an ether solvent, and an additive. The concentration of the additive is greater than 0.1 mol/L and less than 0.5 mol/L, and anions of the additive comprise one or more of BF4 -, C4BO8 -, and C2BF2O4 -. The sodium metal battery cell has improved high-temperature storage performance.
Resumen de: WO2026144744A1
A solid-state battery cell, an electrolyte sheet and a preparation method therefor, a battery apparatus, and an electrical apparatus. The solid-state battery cell comprises an electrolyte sheet and a negative electrode sheet. The electrolyte sheet comprises: a solid-state electrolyte base layer and an electron blocking layer, the electron blocking layer being disposed on the side of the solid-state electrolyte base layer close to the negative electrode sheet. The electron blocking layer comprises CsXMyMoa(CN)b(NO)c·nH2O, where M comprises one or more of Fe, Co, Ni, Cu, Zn, Mg, Ca, Sr, and Ba; and 0.6≤x≤1.5, 0.75≤y≤1.2, 0.8≤a≤1.2, 4.5≤b≤5.5, 0.8≤c≤1.3, and 0
Resumen de: WO2026146968A1
The present invention relates to a cathode active material capable of improving the performance of a lithium secondary battery, and more particularly, to a cathode active material comprising a lithium iron phosphate-based compound in the form of primary particles or secondary particles, the value (X) according to formula 1 of the present specification being 11.00 nm-2 or greater and 27.00 nm-2 or less, and to a cathode and a lithium secondary battery comprising the cathode active material.
Nº publicación: WO2026147144A1 09/07/2026
Solicitante:
LG ENERGY SOLUTION LTD [KR]
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Resumen de: WO2026147144A1
The present invention relates to a lithium secondary battery, and a battery module and a battery pack including same, the lithium secondary battery including: a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; and an electrolyte, wherein the positive electrode active material includes a lithium nickel-based oxide having a Ni content of 50 mol% to 75 mol% among all metals excluding lithium, the negative electrode active material includes 50 wt% to 100 wt% of artificial graphite, and the negative electrode has a negative electrode density 1.52g/cm3 or less as defined by the following equation (1). Equation (1): negative electrode density = (25 × La) / Ta In equation (1), La represents the cross-sectional loading amount of the negative electrode (unit: g/25cm2), and Ta represents a value obtained by subtracting the thickness of the negative electrode current collector from the total thickness of the negative electrode (unit: cm).
BOPI
Sede Electrónica
