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1111
resultados
Última actualización
01/02/2026 [07:07:00]
Resultados 175 a 200 de 1111
Resumen de: US20260031396A1
A lithium-ion battery electrolyte, a lithium-ion battery, and an electrochemical apparatus are provided. The electrolyte includes a non-aqueous solvent, a lithium salt, and an additive including a first additive and a second additive. The first additive is selected from compounds represented by formula (I), and the second additive is lithium bis(oxyalyl)difluorophosphate, andwhere R1, R2, R3, and R4 are each independently a substituent having 1 to 3 carbon atoms, 0 to 4 unsaturations, and 0 to 3 heteroatoms, the heteroatoms are selected from at least one of nitrogen, phosphorus, or sulfur, and n is 0 to 2.
Resumen de: US20260031398A1
A sodium-ion battery electrolyte is disclosed, including a sodium salt, a non-aqueous organic solvent and an additive. The additive includes fluoroethylene carbonate, 1,3-propane sultone and 1,3-propene sultone, the sodium salt includes a primary sodium salt and sodium difluorophosphate. The sodium-ion battery electrolyte satisfies the following conditions: 0.3≤(a+b+c)*100/d≤7, and 1≤a≤5, 0.5≤b≤2, 1≤c≤3, 100≤d≤1000, where a represents a mass percentage of fluoroethylene carbonate in the sodium-ion battery electrolyte, in %; b represents a mass percentage of 1,3-propane sultone in the sodium-ion battery electrolyte, in %; c represents a mass percentage of 1,3-propene sultone in the sodium-ion battery electrolyte, in %; d represents a mass content of sodium difluorophosphate in the sodium-ion battery electrolyte, in ppm. Also disclosed is a sodium-ion battery including the sodium-ion battery electrolyte described above. The electrolyte can effectively improve high-temperature performance, reduce impedance, and mitigate adverse effects of the passivation film on the low-temperature performance and rate capability.
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: WO2026024026A1
A battery cell according to the present invention comprises: an electrode assembly in which a cathode, an anode, and a separator are stacked in the stacking direction; a cell case for accommodating the electrode assembly; and an insulation member which is disposed on one side other than two side surfaces of the electrode assembly of the cell case in the stacking direction, and which includes an insulation material, wherein the cell case includes a contact unit which is formed at a position different from the position at which the insulation member is disposed, and with which a cooling member is in contact.
Resumen de: WO2026024047A1
According to an embodiment of the present invention, an electronic device comprises: a housing forming the exterior; and a battery disposed inside the housing. The battery includes: a battery housing having an opening; a gasket disposed in the opening of the battery housing and defining an inner space with the battery housing; and an electrode assembly disposed in the inner space. The electrode assembly includes: first electrode plates and second electrode plates, which are sequentially arranged in alternation with each other and have different polarities; first electrode tabs extending from the first electrode plates; second electrode tabs extending from the second electrode plates; a first electrode lead electrically connected to the first electrode tabs; and a second electrode lead electrically connected to the second electrode tabs. The first electrode lead and the second electrode lead may pass through the gasket and extend outward from the inner space of the battery housing.
Resumen de: WO2026024030A1
Provided is a cathode active material in the form of secondary particles formed by aggregation of primary particles comprising a lithium transition metal composite oxide. The lithium transition metal composite oxide comprises lithium, nickel, and manganese, and additionally comprises boron as a doping element, wherein, in the lithium transition metal composite oxide, a molar content of manganese is greater than a molar content of nickel. The primary particles have an average particle size of 200-800 nm, and the secondary particles have a particle size (D50) of 0.5-3.0 ㎛. As the cathode active material contains a trace amount of boron as a doping element, excellent flowability may be exhibited despite a small particle size.
Resumen de: WO2026023773A1
The present invention relates to a sulfide-based solid electrolyte, comprising a compound having an argyrodite-type crystal structure and represented by chemical formula 1:
Resumen de: WO2026023761A1
The present invention relates to a microporous polyolefin film and, more specifically, to a microporous polyolefin film, a method for manufacturing same, and a secondary battery comprising same, wherein the polyolefin comprises an alpha-olefin-derived unit and, with respect to the alpha-olefin-derived unit, the average pore size of the microporous film is 10 nm to 45 nm depending on the number of short chain branches (SCBs) per 1,000 carbon atoms in the polyolefin backbone.
Resumen de: US20260031353A1
A hard carbon material contains micropores and ultramicropores, a pore diameter of the micropores is less than 2 nm, a pore diameter of the ultramicropores is less than 0.7 nm, a pore volume of the micropores accounts for 95% to 100% of a total pore volume, a pore volume of the ultramicropores ranges from 0.01 cm3/g to 0.2 cm3/g, and the pore volume of the ultramicropores accounts for 80% to 99% of the total pore volume. The negative electrode active material provided in this application exhibits a stable low-potential plateau, high specific capacity, and high reversible capacity, and applying the negative electrode active material of this application to secondary batteries enhances the energy density of secondary batteries while improving their cycle performance.
Resumen de: US20260031349A1
The present disclosure provides a positive electrode active material, a sodium-ion battery and a preparation method therefor and an electrical device, relating to the technical field of secondary batteries. The positive electrode active material includes a polyanionic material and Na4Fe3(PO4)2P2O7, a mass of the Na4Fe3(PO4)2P2O7 being 40% to 60% of a mass of the positive electrode active material. In the present disclosure, the polyanionic material and Na4Fe3(PO4)2P2O7 are compounded as the positive electrode active material. The two materials cooperate with each other, so that the positive electrode active material has a high diffusion coefficient of Na+, a high energy density and excellent cycle stability at a low temperature, which is beneficial to improving the low-temperature service performance of the sodium-ion battery.
Resumen de: US20260031359A1
A method for producing binder-coated active battery material agglomerations includes agitating a volume of a binder-solvent solution across two or more steps with a particulate mixture including active battery material particles. The binder-solvent solution has a solubility limit for a mixture of binder material particles within a first solvent solution at a first set of environmental parameters. The particulate mixture is subjected to a second set of environmental parameters across two or more steps which reduces the solubility limit to generate a powder mixture of binder-coated active battery material agglomerations.
Resumen de: US20260031351A1
The present disclosure provides a dispersible graphene platelet and a method of making same. The structure of the graphene platelet 10 comprises a base layer 1 of graphene on which at least one discontinuous layer 2, 3, 4 of graphene is stacked, with each layer of graphene above the base layer having a smaller surface area than the layer it is stacked upon. The edges of the base layer and the discontinuous layers stacked upon it are all at least partially functionalised 5, providing a structure with graphene-like properties owing to the base layer and relatively high dispersibility owing to the increased amount of functionalised groups on each platelet. The platelets may be used for a number of applications, for example in the production of electrodes or composite materials.
Resumen de: US20260031394A1
The present invention addresses the problem of providing: an electrolyte that can be used to produce a power storage device and has an excellent balance between solubility in organic solvents (non-aqueous solvents), charge/discharge efficiency, −10° C. resistance value, cycle characteristics (volume change rate, capacity retention rate, resistance change rate), and high-temperature characteristics; a reinforcing agent; an electrolyte solution; a power storage device produced using the same; and a method for producing a lithium boron fluoride complex compound and a lithium complex compound for an electrolyte or a reinforcing agent. This electrolyte for a power storage device contains a lithium boron fluoride complex compound having a specific substituent.
Resumen de: US20260031322A1
The present disclosure relates to a lithium-ion battery component and methods for manufacturing the lithium-ion battery component. The battery component, in some examples, includes a current collector, a porous deposit of first active material and first binder on the current collector, and a solvent-free electrode layer of second active material and second binder laminated with the porous deposit to at least partially occupy the pores of the porous deposit.
Resumen de: US20260031319A1
The electrode for a secondary battery includes an electrode current collector and an electrode mixture layer formed on at least one surface of the electrode current collector so that a portion of the electrode current collector is exposed to form an uncoated portion, wherein a retention rate of tensile strength of the uncoated portion, according to Equation 1 below, is 0.75 or greater,RTS=TSNC/TSMLEquation1where RTS is a retention rate of tensile strength of the uncoated portion, TSNC is the tensile strength of the uncoated portion in a region excluding region A, a portion of the uncoated portion set in the direction of the electrode mixture layer from the end of the uncoated portion, and TSML is the tensile strength of the electrode current collector having the electrode mixture layer formed on at least one surface thereof.
Resumen de: US20260031397A1
An electrochemical apparatus includes a positive electrode, a negative electrode, and an electrolyte, where the positive electrode includes a positive electrode active material, the positive electrode active material contains a manganese element and a cobalt element, and based on a total mass of the positive electrode active material, a mass percentage of the manganese element is B %; the electrolyte includes a sulfonyl imide lithium salt, and based on a total mass of the electrolyte, a mass percentage of the sulfonyl imide lithium salt is C %; where 0.1≤C≤15 and 0.02≤C/10B≤30.
Resumen de: US20260031384A1
An electrode assembly has a structure in which a first electrode, a second electrode, and a separator interposed therebetween are wound. An outermost coated portion is the coated portion of the first electrode. A winding end of the separator extends further from the winding end of the coated portion of the first electrode. A fixing member is attached to the winding end of the separator along the axial direction from a point spaced apart from the axial end of the separator. When the winding end corner of the separator is folded as much as possible with the axial end of the fixing member acting as a folding bias point so that its outer surface faces the outer circumference, the winding end corner of the coated portion of the first electrode is not exposed to the outside. A cylindrical battery may include the electrode assembly. A battery pack may include the cylindrical battery, and vehicle may include the battery pack.
Resumen de: WO2026020853A1
The present disclosure relates to the technical field of batteries. Provided are a battery and an electric apparatus. The battery comprises a first battery cell and a second battery cell, wherein a thermal runaway temperature of the second battery cell is not greater than 180°C, a thermal runaway temperature of the first battery cell is not less than 220°C, and the second battery cell and the first battery cell are stacked in a first direction to serve as components of a cell unit. The thermal runaway temperature of the first battery cell is higher than the thermal runaway temperature of the second battery cell, and the safety of the first battery cell is higher than that of the second battery cell. The cell unit comprises the second battery cell and the first battery cell which are of different types.
Resumen de: WO2026020999A1
Disclosed in the present disclosure are a battery cell, a battery, and an electrical apparatus. The battery cell comprises a casing, an end cover, an electrode assembly and an electrical connection assembly, wherein the electrode assembly is accommodated in the casing, the end cover is provided with an electrode terminal, and the electrode terminal is electrically connected to the electrode assembly by means of the electrical connection assembly. The electrical connection assembly comprises a current collecting member and at least one adapter connected to the current collecting member, the adapter being engaged with the current collecting member.
Resumen de: WO2026020882A1
A battery, comprising a case (11), end covers (12), caps (13) and a battery cell (4), wherein the end covers (12) and the caps (13) are independently arranged; each end cover (12) is provided with a through hole (121); the battery cell (4) comprises a core body (41) and a tab (42) connected to the core body (41); each end cover (12) comprises a first side and a second side which are opposite each other, wherein the first side and the case (11) are connected and enclose to form a first accommodating cavity (21), the second side and the corresponding cap (13) are connected and enclose to form a second accommodating cavity (22), and the through hole (121) penetrates the first accommodating cavity (21) and the second accommodating cavity (22); and the core body (41) and/or the tab (42) penetrate(s) the through hole (121), and at least part of the core body (41) and/or at least part of the tab (42) are/is accommodated in the second accommodating cavity (22).
Resumen de: WO2026020988A1
A fiber optic sensor, a measurement apparatus, a battery, a battery system, and a measurement system. The fiber optic sensor comprises: an optical fiber and a plurality of sub-sensors, the plurality of sub-sensors being successively arranged in a fiber core of the optical fiber in the extension direction of the optical fiber, and the sub-sensors being used for measuring temperature and/or strain at corresponding positions. Each sub-sensor can measure the temperature and/or strain, such that the temperature and/or strain at multiple positions can be measured by one fiber optic sensor, allowing temperature and strain measurement processes to be simpler and more efficient.
Resumen de: WO2026023391A1
Problem To provide a load application device and a power storage device that improve the durability and energy consumption efficiency of an all-solid battery. Solution A load application device 1 applies a load to a layered structure 2 of an all-solid battery. The load application device 1 is characterized by comprising a support 10, an elastic part 11 that is supported from the support 10 and generates elastic force by elastic deformation, and a force transmission part 12 that contacts the elastic part 11 and the layered structure 2, separates the force in the layering direction of the layered structure 2 from at least a portion of the elastic force inputted from the elastic part 11 and transmitted in a force transmission direction that varies in response to the expansion and contraction of the layered structure 2, and transmits the separated force to the layered structure 2.
Nº publicación: WO2026023715A1 29/01/2026
Solicitante:
LG ELECTRONICS INC [KR]
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Resumen de: WO2026023715A1
A riveting device for a cylindrical battery is disclosed. The riveting device for a cylindrical battery includes a guide pin to improve assembly defects when assembling a rivet with a gasket and when assembling a rivet-gasket assembly with a can. The riveting device for a cylindrical battery according to an embodiment of the present invention arranges the central axis line of the gasket, the central axis line of the rivet, the central axis line of the can, and the central axis line of the guide pin on the same line when assembling the rivet with the gasket and when assembling the rivet-gasket assembly with the can.
BOPI
Sede Electrónica
