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955
resultados
Última actualización
09/02/2026 [07:06:00]
Resultados 350 a 375 de 955
Resumen de: WO2026020315A1
A battery cell (100), a battery device (1100), and an electrical device. The battery cell (100) comprises a housing (200) and an electrode assembly (101). The housing (200) is provided with an electrode lead-out portion (2011). The electrode assembly (101) is at least partially accommodated in the housing (200). The electrode assembly (101) comprises a first electrode plate (1). The first electrode plate (1) comprises a conductive member (30), a current collector (10), and an active material layer (20). The conductive member (30) is connected to the electrode lead-out portion (2011). The current collector (10) comprises an insulating substrate (11) and a metal layer (12). The insulating substrate (11), the metal layer (12), and the active material layer (20) are stacked in a thickness direction of the current collector (10). At least part of the metal layer (12) is located between the insulating substrate (11) and the active material layer (20). The metal layer (12) comprises a conductive portion (121) and an extension portion (122) extending outward from an end portion of the conductive portion (121) in a first direction, the first direction being perpendicular to the thickness direction of the current collector (10). The conductive portion (121) is covered with the active material layer (20), while the extension portion (122) is not covered with the active material layer (20). The conductive member (30) is welded to a surface of the extension portion (122) facing away from
Resumen de: WO2026023962A1
A battery according to the present invention comprises: an electrode assembly provided by winding a first electrode and a second electrode, and a separator interposed therebetween around the central axis of a winding center hole; a can housing which accommodates the electrode assembly; an electrode terminal electrically connected to the electrode assembly; and a first current collecting plate which electrically connects the electrode assembly and the electrode terminal, wherein the first current collecting plate is coupled to the electrode terminal by surface-to-surface welding and has at least one communication hole to allow the inside of the can housing to communicate with the winding center hole.
Resumen de: WO2026023975A1
A negative electrode material for a lithium secondary battery according to one embodiment comprises a core of spherical natural graphite and a surface layer containing carbon, wherein the negative electrode material has an activity defined as SBET/D50×P of 1.3 to 2.5, and an orientation index defined as I110/I004×100 of 65 or more. Here, SBET is the BET specific surface area (m2/g) of the negative electrode material, D50 is the cumulative volume-based median diameter (㎛) of the negative electrode material, P is the porosity (%) of the negative electrode material measured by a mercury intrusion method, I110 is the maximum intensity of a (110) peak in an X-ray diffraction pattern of the negative electrode material, and I004 is the maximum intensity of a (004) peak in the same X-ray diffraction pattern.
Resumen de: WO2026023947A1
The present invention relates to a battery module comprising: a plurality of battery cells; and a cover member configured to at least partially surround the outer surface of at least some of the plurality of battery cells and maintain the temperature in the battery cells to be uniform.
Resumen de: WO2026023956A1
The present invention relates to an anode for a lithium secondary battery and a manufacturing method therefor. The ratio of porosity to the degree of orientation (O.I) of a carbon-based anode active material in the anode satisfies a predetermined range such that movement paths of lithium ions in an anode active layer are shortened and diffusion resistance of the lithium ions is significantly lowered, and thus the anode has excellent fast-charging performance. In addition, the density of the anode active layer in the anode is improved within a range that does impair the shortened movement paths of lithium ions, and thus the anode has excellent energy density.
Resumen de: WO2026023950A1
Provided, according to example embodiments, is a method for manufacturing a secondary battery. The method comprises: a step for reading an electrode ID from a data matrix of a monocell including a positive electrode, a negative electrode, and a separator; and a step for determining whether the monocell is functional or defective on the basis of the electrode ID, wherein the electrode ID includes a symbol for identifying an electrode.
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: US20260031402A1
This application provides an electrolyte solution, a battery cell, a battery, and a power consuming apparatus. The electrolyte solution includes a solvent. The solvent includes a first solvent. The first solvent is an organosiloxane compound. The content of the first solvent is greater than or equal to 20% of the total weight of the solvent.
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: 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: WO2026023979A1
The present invention relates to a positive electrode for an all-solid-state battery and an all-solid-state battery comprising same, the positive electrode comprising: a current collector; and a positive electrode active material layer on the current collector, wherein the positive electrode active material layer further comprises a positive electrode active material, a solid electrolyte of chemical formula 1, and a binder, and the positive electrode active material has the effects of reducing the porosity of the positive electrode and improving ionic conductivity and electrical conductivity. Chemical formula 1 LiaPbScCldXe. In chemical formula 1, 4≤a≤7, 0≤b≤1, 3≤c≤5, 0≤d<0.3, and d
Resumen de: WO2026023969A1
A battery cell according to an embodiment of the present invention may comprise: an inner cell in which an electrode assembly is accommodated in a pouch-type exterior material; a case which accommodates the inner cell and has higher rigidity than the exterior material; an end cover which covers the end of the case and has an insulating material; and a pad which is in close contact between the inner surface of the case and the outer surface of the inner cell and is elastically deformed.
Resumen de: WO2026023944A1
The present invention provides equipment for assembling an electrode, the equipment being capable of simultaneously producing two types of unit battery cells. The equipment for assembling an electrode includes a pair of assembly parts, and at least one of the pair of assembly parts may be configured to selectively manufacture a mono cell or a half cell. Equipment for assembling an electrode, according to the present invention, comprises: a central separator roll that unwinds and continuously supplies a central separator having a width 2W; a cutout part that continuously cuts the central separator to divide the central separator into an upper central separator and a lower central separator, each having a width W; an upper assembly part that receives and combines the upper central separator and an upper electrode; and a lower assembly part that receives and combines the lower central separator and a lower electrode.
Resumen de: WO2026023926A1
A battery management system and a battery management method are provided. The battery management system according to the present invention comprises: a sensing unit for generating state data of each of a plurality of cell groups included in a battery assembly; a discharge unit for individually opening/closing a plurality of discharge paths provided to the plurality of cell groups; and a control unit for performing a diagnosis procedure that identifies, on the basis of the state data, whether each of the plurality of cell groups has a high-temperature abnormality or a low-temperature abnormality. The control unit determines at least one cell group from among the plurality of cell groups as a discharge object according to the result of the diagnosis procedure, and controls the discharge unit such that at least one discharge path provided to the discharge object is electrically connected.
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: 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.
Nº publicación: US20260031341A1 29/01/2026
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
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.
BOPI
Sede Electrónica
