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1255
resultados
Última actualización
10/02/2026 [07:21:00]
Resultados 775 a 800 de 1255
Resumen de: WO2026024832A1
The present disclosure is directed to a solid-state battery, comprising an anode, a cathode, a solid-state electrolyte, and an interfacial layer. The anode can comprise at least one material selected from a group consisting of silicon and aluminum. The interfacial layer can be positioned between the anode and the solid-state electrolyte and can be the interfacial layer is configured to conduct ions between the solid-state electrolyte and the anode.
Resumen de: WO2026021190A1
Provided in the present application are a battery, a battery preparation method, a battery pack and an electric device. The battery comprises: a bare cell and a casing. The bare cell comprises a plurality of positive electrode sheets and a plurality of negative electrode sheets, each positive electrode sheet being provided with a positive tab, and each negative electrode sheet being provided with a negative tab. All the positive tabs are stacked in a first direction to form a first tab group, and all the negative tabs are stacked in the first direction to form a second tab group, the first direction being the direction of height of the bare cell. The casing comprises a first top cover and a second top cover. The first top cover is provided with a positive terminal post, and the second top cover is provided with a negative terminal post. The side of the positive terminal post that is close to the bare cell is provided with a first opening. The side of the negative terminal post that is close to the bare cell is provided with a second opening. The first tab group is fitted within the first opening and welded to the positive terminal post, and the positive terminal post is pressed against the first tab group. The second tab group is fitted within the second opening and welded to the negative terminal post, and the negative terminal post is pressed against the second tab group. The welding of tabs to top covers is avoided, improving the welding success rate of the tabs.
Resumen de: WO2026021065A1
In order to overcome the problems of insufficient high-temperature cycle performance and high-temperature storage performance of existing silicon-containing negative electrodes, provided is a lithium-ion battery, comprising a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive electrode comprises a positive electrode material layer which comprises a positive electrode active material. The negative electrode comprises a negative electrode material layer which comprises a negative electrode active material, the negative electrode active material comprising a silicon-carbon composite material formed by compositing a silicon-based material and a graphite material. The non-aqueous electrolyte comprises a non-aqueous organic solvent, an electrolyte salt and an additive, the non-aqueous organic solvent comprising fluoroethylene carbonate, and the additive comprising lithium difluorophosphate and ethylene sulfate. The lithium-ion battery satisfies the following conditions: 0.6≤100*(D/F+10*L)/C≤2.5, 5≤D≤16, 400≤C≤700, 3≤F≤20 and 0.2≤L≤1. The lithium-ion battery can maintain good high-temperature cycle performance and high-temperature storage performance while having an increased energy density.
Resumen de: WO2026021198A1
The present application relates to the technical field of battery cells, and discloses a battery cell casing, a battery cell, and a power device. The battery cell casing comprises a casing body. The casing body comprises a first connection edge and a second connection edge; the first connection edge and the second connection edge are connected by means of a weld seam; and a cavity used for accommodating an electrode assembly is defined inside. Along the width direction of the weld seam, the weld seam comprises a central zone and heat-affected zones located on two sides of the central zone. The tensile strength of the weld seam is K, with a unit of "MPa", and the tensile strength of the casing body is R, with a unit of "MPa", satisfying: 0.6≤K/R≤0.8. In a tensile test on a casing sample provided with a weld seam, the fracture position of the casing sample is not in the central zone. The present application can ensure that the weld seam has sufficient tensile strength, so that when the internal pressure of the battery cell rises, the battery cell casing would not crack in the central zone of the weld seam, thereby ensuring the safety performance of a battery and a vehicle.
Resumen de: WO2026020312A1
A battery cell, a battery device and an electric device. The battery cell (7) comprises an electrode assembly (10) and an electrolyte, and the electrode assembly (10) comprises a positive electrode sheet (11), a separator (13) and a negative electrode sheet (12), which are stacked in its own direction of thickness, wherein the positive electrode sheet (11) comprises a positive electrode tab (111), a positive electrode current-collecting portion (112), and a positive electrode film layer (113) arranged on a surface of the positive electrode current-collecting portion (112) in the direction of thickness and containing a positive electrode active material, the positive electrode tab (111) being arranged on at least one side of the positive electrode current-collecting portion (112); the negative electrode sheet (12) comprises a negative electrode tab (121), a negative electrode current-collecting portion (122), and a negative electrode film layer (123) arranged on a surface of the negative electrode current-collecting portion (122) in the direction of thickness and containing a negative electrode active material, the negative electrode tab (121) being arranged on at least one side of the negative electrode current-collecting portion (122); the ratio of the length to the width of the positive electrode film layer (113) ranges from 4 to 20; the dimension of the positive electrode film layer (113) in the direction of length ranges from 600 mm to 1200 mm; and the single-sided coatin
Resumen de: WO2026020388A1
Provided in the present disclosure are a battery cell, a battery device and an electric device. The length of the battery cell is L, and the width of the battery cell is H, wherein the value of L is 4 to 10 times that of H. The battery cell comprises an electrolyte, wherein a first lithium salt additive in the electrolyte comprises at least one of a fluorinated borate and a fluorinated phosphate, and the mass fraction of the first lithium salt additive ranges from 0.01% to 0.5%.
Resumen de: WO2026020309A1
A battery cell (7), a battery device, and an electrical device (1). The battery cell (7) comprises an electrode assembly (10); the electrode assembly (10) comprises a positive electrode sheet, a negative electrode sheet, and a separator; the separator is located between the positive electrode sheet and the negative electrode sheet; the positive electrode sheet comprises a positive electrode tab (111), a positive electrode current collecting portion, and a positive electrode film layer provided on at least one surface of the positive electrode current collecting portion in the thickness direction of the positive electrode sheet and comprising a positive electrode active material; the positive electrode tab (111) is provided on at least one side of the positive electrode current collecting portion; the negative electrode sheet comprises a negative electrode tab (112), a negative electrode current collecting portion, and a negative electrode film layer provided on at least one surface of the negative electrode current collecting portion in the thickness direction of the negative electrode sheet and comprising a negative electrode active material; and the negative electrode tab (112) is provided on at least one side of the negative electrode current collecting portion. When the battery cell (7) is in a 100% state of charge, the ratio of the total thickness of the negative electrode film layer in the negative electrode sheet to the thickness of the negative electrode sheet is 0.95
Resumen de: US20260031395A1
An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the electrolyte are disclosed. The electrolyte may include a non-aqueous (e.g., water-insoluble) organic solvent, a lithium salt, a first additive represented by Chemical Formula 1, and a second additive represented by Chemical Formula 2. A more detailed description of the first additive and the second additive is provided in the present disclosure.
Resumen de: US20260031419A1
Aspects of the disclosure include lithium-ion cells with gas adsorbers and methods of manufacturing the same. An exemplary vehicle includes an electric motor and a battery pack electrically coupled to the electric motor. The battery pack includes a battery cell that includes an anode layer having an anode active material and an anode current collector, a cathode layer having a cathode active material and a cathode current collector, and a separator positioned between the anode layer and the cathode layer. The battery cell further includes a gas adsorber having a gas adsorbent material. The gas adsorbent material is selected to react with at least one offgas that includes a gas phase cycling byproduct produced when cycling the battery cell to form a compound having a solid phase under a cycling temperature and a cycling pressure of the battery cell.
Resumen de: US20260031392A1
Disclosed are a lithium metal battery and a manufacturing method therefor, the lithium metal battery including a cathode, an anode, and an electrolyte disposed between the cathode and the anode, wherein the anode includes a lithium metal, the electrolyte includes a catholyte disposed adjacent to the cathode and an anolyte disposed between the catholyte and the anode, the catholyte includes a first polymer electrolyte, the first polymer electrolyte includes a first polymer, and the first polymer includes a first repeating unit derived from a first single-ion conducting monomer and a second repeating unit derived from a first crosslinking monomer having a plurality of reactive functional groups.
Resumen de: US20260031417A1
A battery configured to power a device includes a battery management unit (BMU). The BMU is configured to determine a fast charging handshake criteria based at least in part on a temperature of the battery and an aging condition of the battery. The BMU is also configured to transmit a fast charging handshake initiation signal based at least in part on a battery characteristic of the battery satisfying the fast charging handshake criteria.
Resumen de: US20260031412A1
An electrode is presented. The electrode has a current collector and a positive active material layer deposited on it. The electrode includes an electrolyte. The electrolyte composition includes 1M lithium hexafluorophosphate and 0.5 wt. % vinylene carbonate, dissolved in a solvent mixture of ethylene carbonate and ethyl methyl carbonate in a 25/75 volume ratio. This electrolyte permeates the surface of the positive active material layer, effectively suppressing electrochemical oxidation during the electrochemical cycling process, thus increasing the stability and performance of the electrode assembly.
Resumen de: WO2026024630A1
A system and method for monitoring and controlling a plurality of marine seismic devices deployed in a survey operation. A battery monitoring device associated with each marine seismic device monitors one or more battery systems associated with each respective marine seismic device. Each battery monitoring device generates battery data associated with a condition of each battery system and communicates the battery data to a central processor. The central processor analysis the data and identifies individual battery systems or individual marine seismic devices that have anomalous conditions. The anomalous conditions include a battery depletion rate above a threshold or a battery life shorter than the remaining duration of the survey operation. The central processor is configured to generate adjusted control settings for individual marine seismic devices to improve the performance of respective battery systems and to identify whether individual battery systems should be redeployed in a future survey operation or discarded.
Resumen de: WO2026024889A1
A thermal runaway barrier system utilizes a thermal runaway barrier having alternating layers of a woven fabric including high temperature yarns and an elastomer layer, wherein the thermal runaway barrier is thin and flexible to conform to contours of a complex three dimensional enclosure, and has a blast resistance of at least four cycles according to test method UL2596 Torch and Grit (TaG) method, a dielectric strength per unit thickness as defined by a breakdown voltage of at least 12kV/mm, and maintains at least 3.1 kV/mm after a thermal runaway event.
Resumen de: WO2026024102A1
The present invention relates to a positive electrode composition for sodium secondary batteries, in which a multifunctional additive for preventing surface degradation is incorporated. The composition comprises a positive electrode active material including a sodium transition-metal oxide, and an organic framework, and contains at least one functional group capable of binding to transition-metal atoms.
Resumen de: WO2026021090A1
A battery pack has a first direction, a second direction and a third direction which intersect in pairs. The battery pack comprises a battery case (10) and thermal management structures (20); the battery case (10) comprises a case body (11) and an upper cover (12), the case body (11) is connected to the upper cover (12) to form a mounting cavity, and the thermal management structures (20) are arranged in the mounting cavity; and each thermal management structure (20) comprises a cooling portion (21) and a first mounting portion (22), the cooling portion (21) is connected to the first mounting portion (22), and the first mounting portion (22) is connected to the upper cover (12). The cooling portions (21) of the thermal management structures (20) are connected to the first mounting portions (22), and the first mounting portions (22) are connected to the upper cover (12), so that after the battery pack is mounted in a vehicle body, the stress on the thermal management structures (20) may be directly transmitted to the vehicle body rather than being transmitted to the vehicle body by means of components such as a side frame of the battery pack, thereby improving the safety performance of the battery pack.
Resumen de: WO2026021202A1
The present application relates to the technical field of batteries. Disclosed are a battery cell cover plate assembly, a battery cell and a power device. The battery cell cover plate assembly comprises a cover plate body and a sealing bead. The cover plate body is provided with a liquid injection hole, and the inner diameter of the liquid injection hole is A. The sealing bead is provided in a compressed manner in the liquid injection hole and is used for sealing the liquid injection hole, and the diameter of the sealing bead is B. The compression ratio of the sealing bead to the liquid injection hole is K, satisfying: K=(B-A)/A, and 4%≤K≤40%. The battery cell cover plate assembly provided in the present application can ensure the effect of the sealing bead sealing the liquid injection hole. The present application provides a new liquid injection hole sealing structure, which is different from the traditional sealing structure using plastic plugs and aluminum rivets, and can effectively improve the sealing effect for liquid injection holes. In addition, in the present application, the liquid injection hole is sealed only by using the sealing bead, allowing for fewer structural members, thereby effectively reducing costs. During production, a sealing bead can simply be pressed into a liquid injection hole, thereby reducing processing procedures, accelerating the production cycle, and improving economic benefits.
Resumen de: WO2026021203A1
Disclosed in the present application are a separator, a secondary battery, and an electrical apparatus. The separator comprises a substrate and a bonding coating distributed on at least one surface of the substrate; the bonding coating comprises organic coatings and connection bridges, the organic coatings being distributed on the surface of the substrate, two adjacent organic coatings being connected by means of one connection bridge, and the width of the connection bridges being less than the maximum size of the organic coatings in the width direction of the connection bridges. The separator of the present application ensures an electrolyte to undergo continuous diffusion and wetting on the surface of the coating, thereby effectively improving the wettability of the electrolyte; the organic coatings are distributed on the surface of the substrate at equal intervals, resulting in small blockage of the substrate; after coating, the air permeability value of the separator increases slightly, and the obstruction to the transmission of lithium ions is low, which help to reduce the internal resistance of batteries and improve the bonding force between the separator and electrode sheets, thereby reducing the conditions of displacement or misalignment between positive and negative electrode sheets in the production process of secondary batteries.
Resumen de: WO2026020286A1
The present application provides a battery cell, a battery device and an electric device. The battery cell comprises a positive electrode sheet, a negative electrode sheet and an electrolyte solution. The electrolyte solution comprises a solvent, which comprises a chain carboxylate solvent; and the conductivity of the electrolyte solution is 13 mS/cm to 20 mS/cm. The negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer arranged on at least one side of the negative electrode current collector, wherein the negative electrode film layer comprises a negative electrode material, and the X-ray photoelectron spectrum (XPS) of the negative electrode material has a phosphorus 2p characteristic peak at binding energy ranging from 132 eV to 138 eV.
Resumen de: WO2026020285A1
The present application provides a battery cell and an electric device. The battery cell comprises a positive electrode sheet, a negative electrode sheet, and an electrolyte; the electrolyte comprises a solvent, and the solvent comprises a chain carboxylate solvent; the conductivity of the electrolyte ranges from 13 mS/cm to 20 mS/cm; the negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer arranged on at least one side of the negative electrode current collector; the negative electrode film layer comprises a negative electrode material; and an X-ray photoelectron spectrum (XPS) of the negative electrode material has a sulfur element 2p characteristic peak having a binding energy in a range of 162 eV to 170 eV.
Resumen de: WO2026020380A1
Provided are a battery cell, a battery device, and an electric device. The battery cell comprises a positive 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; the positive electrode active layer comprises a positive electrode active material; the positive electrode active material comprises a lithium-containing phosphate; the single-sided surface density of the positive electrode active layer ranges from 230 mg/1540.25 mm2 to 400 mg/1540.25 mm2; the electrolyte comprises a solvent and a lithium-containing electrolyte salt; the solvent comprises a chain carboxylic acid ester and ethylene carbonate; the lithium-containing electrolyte salt comprises one or more of lithium hexafluorophosphate and a fluorine-containing sulfonimide salt; the mass ratio of the lithium-containing electrolyte salt to the ethylene carbonate is 0.29-0.72; and the conductivity of the electrolyte ranges from 13 mS/cm to 20 mS/cm.
Resumen de: US20260031341A1
The present disclosure relates to a lithium metal negative electrode comprising a lithium metal layer; and an oxide layer on at least one surface of the lithium metal layer, wherein the oxide layer has a cracked region and a non-cracked region, and a method for manufacturing the same, and since the oxide layer on at least one surface of the lithium metal layer has the cracked region, it is possible to improve the battery life.
Resumen de: US20260031414A1
A composite current collector includes a first section, a second section, and a third section arranged along a first direction. The second section connects the first section and the third section. The first active material layer is connected to the first section. The first active material layer and the composite current collector are arranged along a second direction. The first direction is perpendicular to the second direction. The protection layer is connected to the second section. A first electrical connector is connected to the third section. The protection layer, the first active material layer, and the first electrical connector are disposed on a same side of the composite current collector. Along the first direction, a width W1 of the protection layer satisfies: 1.0 mm≤W1≤2.4 mm. The second direction is a thickness direction of the first electrode plate.
Resumen de: US20260031411A1
A battery monitoring system for a vehicle, comprising a battery having one or more cells, a housing wherein the battery is arranged, the housing has an atmosphere, wherein a ventilation valve is arranged at the housing for controlling the atmosphere in the housing, the ventilation valve comprises a first port and a second port, the first port being in fluid communication with the housing, the second port is in fluid communication with a closed expansion space arranged outside the housing, wherein a gas sensor is arranged at the atmosphere, at the ventilation valve, and/or at the closed expansion space, the gas sensor is configured to detect a gas leaking or emitting from the battery.
Nº publicación: US20260031364A1 29/01/2026
Solicitante:
LG CHEM LTD [KR]
LG ENERGY SOLUTION LTD [KR]
LG CHEM, LTD,
LG ENERGY SOLUTION, LTD
Resumen de: US20260031364A1
Disclosed is a current collector, and a method for using the current collector. The current collector is capable of forming an electrode, which does not affect performance and operation of a secondary battery by exhibiting, in a normal state, excellent electrical characteristics including low resistance, and can ensure stability by blocking, in an abnormal state, energization of an electrode assembly through resistance increase. The current collector is also capable of ensuring excellent adhesive force between layers forming the electrode.
BOPI
Sede Electrónica
