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586
resultados
Última actualización
25/08/2026 [07:49:00]
Resultados 325 a 350 de 586
Resumen de: WO2026171072A1
Provided in the present application are a positive electrode sheet and a preparation method therefor, a battery, a battery pack and an electrical device. The positive electrode sheet comprises a current collector, and a first active layer and a second active layer which are sequentially stacked on at least one functional surface of the current collector, wherein the first active layer comprises a first active material, a first conductive agent and a first binder, the second active layer comprises a second active material, a second conductive agent and a second binder, the first active material comprises lithium manganese oxide and/or lithium iron manganese phosphate, the second active material comprises a ternary material, and the mass ratio of the first active material to the second active material is 5-9:1-5.
Resumen de: US20260245981A1
A lithium secondary battery having high energy density and excellent lifetime characteristics includes: (1) a positive electrode containing a positive electrode active material in a single particle form having a D50 of 5.5 μm to 8 μm; (2) a negative electrode containing a first negative electrode active material having a Si—C composite; and (3) an electrolyte. The irreversible capacity per unit area of the negative electrode is smaller than an irreversible capacity per unit area of the positive electrode.
Resumen de: US20260245993A1
A battery management system may include: a first battery cell; a second battery cell; a cable connecting the first battery cell and the second battery cell to each other; and a battery management circuit which monitors the voltage of the first battery cell and the second battery cell and determines whether to switch states of the first battery cell and the second battery cell to a permanent fail state on the basis of the voltage of the first battery cell and the second battery cell and whether the first battery cell and the second battery cell are connected by the cable.
Resumen de: US20260241592A1
0000 An electrode processing device includes an electrode cutting unit including a first cutter that cuts an electrode; and a deburring unit including a second cutter that cuts a burr protruding from the cut electrode cutting surface in a cutting direction of the first cutter. Also provided is an electrode assembly including an electrode and a separator, where at least one of the electrode and the separator is stacked and wound. The electrode includes a current collector and an electrode active material coated on an inner surface and an outer surface of the current collector. The electrode active material located on an outer surface of an end of the electrode has a higher density than an adjacent region.
Resumen de: US20260245912A1
Provided is a sodium-ion battery, comprising a non-aqueous electrolyte, a positive electrode, and a negative electrode. The non-aqueous electrolyte includes an additive comprising a sodium salt additive. The positive electrode includes a positive electrode active substance layer containing a sodium-supplementing additive and a positive electrode active material. The sodium-supplementing additive is a sodium-rich transition metal oxide. The negative electrode includes a negative electrode active material. The sodium-ion battery satisfies the following relationship: 0.3≤a/(b+c)≤1.5, 5≤a≤10, 1≤b≤10, and 2≤c≤12. A total mass of the sodium-supplementing additive and the positive electrode active material is 100%, a represents a mass content of the sodium-supplementing additive, in %; b represents a mass content of the sodium salt additive in the non-aqueous electrolyte, in %; c represents a particle size of the negative electrode active material, in μm. The sodium-ion battery reduces the internal resistance of the battery and improves initial coulombic efficiency and cycle performance.
Resumen de: US20260246110A1
0000 A method for manufacturing a cylindrical secondary battery including a jelly roll-type electrode assembly, in which an electrode and a separator are wound, ; includes placing a current collector, in which a through-hole is formed, on an end of a jelly roll-type electrode assembly in a direction of a winding center axis, and welding and bonding the jelly roll-type electrode assembly to the current collector. The jelly roll-type electrode assembly and an edge of the current collector through-hole are welded in a circumferential direction. Precision of a welding process position are improved when there is no welding defect, a wide area is contacted with lower energy compared to an existing secondary battery, and low resistance is generated to maximize not only welding processibility.
Resumen de: US20260246059A1
The present disclosure includes a gas circulation device and a battery quiescence apparatus. The gas circulation device includes a first gas conveying assembly, a second gas conveying assembly, and an intake assembly. Working gas can be charged into the first gas storage tank and the second gas storage tank through the intake assembly, forming a pressure difference between the first gas storage tank and the second gas storage tank. When the first gas conveying assembly is opened, working gas in the first gas storage tank is conveyed to the quiescent chamber; when the first gas conveying assembly is closed and the second gas conveying assembly is opened, working gas in the second gas storage tank continues to be conveyed to the quiescent chamber until pressure in the quiescent chamber reaches a threshold.
Resumen de: US20260245901A1
0000 The present application provides a carbon material, a method for preparing the same, and a secondary battery and an electrical device comprising the same. The carbon material includes an external region and an internal region disposed on the inside of the external region, the external region being a region formed by extending for a distance of 0.25L from the surface of the particles of the carbon material towards the interior of the particles, L being a short-axis length of the particles of the carbon material; total pore area of the external region being denoted as S<1 >and total pore area of the internal region being denoted as S<2>, and S<2>>S<1>. The carbon material provided in the present application can make the secondary battery have high initial columbic efficiency, high energy density and good cycling performance.
Resumen de: US20260242895A1
0000 A Li recovery process comprises the steps of powdering the metallurgical slag to a particle size distribution having a D50 of less than 100 μm; contacting, in an aqueous medium, the Li-containing metallurgical slag, and an alkaline Ca-compound, provided in amounts selected to obtain a molar ratio of the Ca in the Ca-compound to Li in the slag of at least 0.75, thereby obtaining a suspension; heating the suspension to a temperature of more than 80° C. for at least 30 min, thereby obtaining a leached suspension; and, separating solids from liquids in the leached suspension, thereby obtaining a leach solution containing a major part of the Li, and a solid residue containing Ca. This alkaline leaching process allows for a straightforward recovery of battery-grade LiOH from the leach solution, while consuming fewer reagents than known acidic leaching processes.
Resumen de: WO2026170545A1
The present application discloses a battery cell, a battery apparatus, and an electric apparatus. The battery cell comprises an electrode assembly, the electrode assembly comprising a plurality of positive electrode sheets and a plurality of negative electrode sheets stacked in a third direction, and a positive electrode tab and a negative electrode tab respectively located at a first side end and a second side end of the electrode assembly in a second direction; each negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer located on at least one side of the negative electrode current collector, and the negative electrode film layer is configured to have a reduced thickness at least at an end adjacent to the negative electrode tab so as to form a negative electrode thinned portion; each positive electrode sheet comprises a positive electrode current collector and a positive electrode film layer located on at least one side of the positive electrode current collector, and the positive electrode film layer is configured to have a reduced thickness at least at an end adjacent to the negative electrode tab so as to form a first positive electrode thinned portion, and projections of the first positive electrode thinned portion and the negative electrode thinned portion in the third direction at least partially coincide. The technical solution of the present application helps reduce the risk of lithium plating at negative electr
Resumen de: WO2026170546A1
Disclosed in the present application are a battery cell, a battery apparatus and an electrical apparatus. The battery cell comprises an electrode assembly and an electrolyte; the electrode assembly comprises a positive electrode sheet and a negative electrode sheet; a positive electrode film layer of the positive electrode sheet comprises a positive electrode active material, the positive electrode active material comprising a lithium-containing phosphate; the porosity of the positive electrode sheet is 20-30%; the thickness of a positive electrode current collector is 5%-8% of the thickness of the positive electrode sheet; a negative electrode film layer of the negative electrode sheet comprises a negative electrode active material, the negative electrode active material comprising graphite; the porosity of the negative electrode sheet is 24-33%; the thickness of a negative electrode current collector is 2.5%-5% of the thickness of the negative electrode sheet. The technical solution of the present application achieves a balance among good fast charging performance, power performance and high energy density of batteries.
Resumen de: US20260242225A1
0000 The present invention relates to a carbon nanotube dispersion exhibiting low viscosity and little change in viscosity over time, which includes carbon nanotubes, a dispersant, and a dispersion medium, wherein the dispersant contains a first dispersant and a second dispersant in a weight ratio of 100:10 to 90, the first dispersant is a dispersant containing an N atom, the second dispersant is a compound containing a sulfonic group, a hydroxyl group, and an aromatic ring in a molecular structure, and the carbon nanotubes and the dispersant are present in a weight ratio of 100:25 to 500.
Resumen de: US20260245995A1
0000 A measuring apparatus for a secondary battery includes a sensing unit configured to measures an object, and a housing configured to houses the object therein, and defining an opening so that the object can be detected by the sensing unit, wherein the sensing unit is disposed outside the housing to reduce or prevent foreign matters inside the housing from being transferred to the sensing unit.
Resumen de: US20260246008A1
0000 Provided is a battery cell comprising: an electrode assembly; a case accommodating the electrode assembly; and a cover surrounding at least a part of the case and including a cooling passage. The cover comprises first surfaces including recesses and second surfaces spaced apart from the first surfaces and including protrusions. At least a part of the case is positioned between the first surfaces and the second surfaces.
Resumen de: US20260246017A1
0000 A battery pack with improved temperature deviation can include a plurality of cell module assemblies; and a case that accommodates the plurality of cell module assemblies, wherein the case includes: an air inlet through which cooling air flows into the case; an air outlet through which the cooling air is discharged from the case; and a first side portion disposed on one side of the case, wherein the first side portion includes a plurality of first beads protruding from the first side portion inwardly into the case.
Resumen de: US20260245910A1
0000 Disclosed are a positive electrode layer for an all-solid-state rechargeable battery, a method of manufacturing the same, and an all-solid-state rechargeable battery including the same. In an embodiment, the positive electrode layer for an all-solid-state rechargeable battery includes a positive electrode current collector; and a positive electrode active material layer located on the positive electrode current collector and including a solid electrolyte composite and a positive electrode active material; wherein the solid electrolyte composite includes a core including diamagnetic particles having an aspect ratio represented by Equation 1 of greater than 1; and a shell surrounding the core and including a solid electrolyte.
Resumen de: WO2026170544A1
Disclosed in the present application are a battery cell, a battery device and an electric device. The dimension of the battery cell in a first direction ranges from 80 to 130 mm; the dimension of the battery cell in a second direction ranges from 200 to 350 mm; the ratio of the dimension of the battery cell in the second direction to the dimension of the battery cell in the first direction ranges from 1.5 to 4.4; and the battery cell comprises a casing, an electrode assembly, a positive electrode connector and a negative electrode connector. The positive electrode connector comprises a first main body portion and a first bending portion, which are arranged at an included angle, the dimension of the first main body portion in the second direction ranging from 1.5 to 3.0 mm, and the dimension of the first bending portion in the first direction ranging from 1.5 to 3.0 mm; and the negative electrode connector comprises a second main body portion and a second bending portion, which are arranged at an included angle, the dimension of the second main body portion in the second direction ranging from 1.2 to 2.5 mm, and the dimension of the second bending portion in the first direction ranging from 1.2 to 2.5 mm. The technical solution of the present application has a more reasonable structure, further improving the energy density and fast-charging reliability of the battery.
Resumen de: WO2026170999A1
The present application provides a battery apparatus and an electric apparatus. The battery apparatus comprises a frame, a heat exchange plate, a connecting base, and a tube fitting; the frame encloses to form an accommodating cavity, the heat exchange plate is arranged on one side of the accommodating cavity, the heat exchange plate is provided with a flow channel, the heat exchange plate extends to an outside of the accommodating cavity and has an opening outside the accommodating cavity, and the opening is in communication with the flow channel; the connecting base covers the opening on the heat exchange plate and is connected to the heat exchange plate, the connecting base is provided with a connecting through-hole, and the connecting through-hole is in communication with the opening; and the tube fitting is connected to the connecting base and is in communication with the opening on the heat exchange plate by means of the connecting through-hole. As described above, a heat exchange plate has a portion located outside an accommodating cavity, and an opening on the heat exchange plate is located outside the accommodating cavity, thereby allowing both a connecting base and the opening to be located outside the accommodating cavity. On the one hand, this facilitates detection of leakages, and on the other hand, if leakage occurs in a connection between the two, this allows for easier repair of the leakage.
Resumen de: US20260246075A1
0000 A battery assembly according to an embodiment of the present disclosure is a battery assembly comprising a plurality of battery cell units, each comprising at least one battery cell and a cell cover covering a lower surface and both side surfaces of the respective at least one battery cell, in which the cell cover comprises at least one cell cover venting hole at a lower surface portion corresponding to the lower surface of the respective at least one battery cell, electrode leads protrude from both end surfaces in a longitudinal direction of the respective at least one battery cell, and a foamed layer is adjacent to at least one of the electrode leads of the respective at least one battery cell.
Resumen de: US20260246100A1
A battery module including a battery cell stack in which multiple battery cells are stacked, a module case configured to accommodate the battery cell stack, a terminal busbar disposed on one side of the battery cell stack, an insulating cover disposed on one side of the module case, one end portion of the terminal busbar being positioned on the insulating cover, and a fixing member having a fixing hole configured to fix the one end portion of the terminal busbar, where the fixing member being disposed below the one end portion of the terminal busbar in the insulating cover is provided.
Resumen de: US20260246092A1
A secondary battery includes an electrode assembly. The electrode assembly is a stacking structure, and the electrode assembly includes a first electrode sheet, a separator, and a second electrode sheet sequentially stacked in a first direction. The first electrode sheet includes a first outer electrode sheet located at one end of the electrode assembly in the first direction and at least one first inner electrode sheet located inside the electrode assembly relative to the first outer electrode sheet. The separator includes a first separator bonded to the first outer electrode sheet and a second separator bonded to the first inner electrode sheet. A bonding strength between the first separator and the first outer electrode sheet is defined as F1, a bonding strength between the second separator and the first inner electrode sheet is defined as F2, and F1>F2.
Resumen de: US20260245899A1
0000 Provided is a composite capable of reducing the resistance of a cell. According to an aspect, provided is a composite comprising graphene and carbon nanotubes on the graphene, wherein the ratio (I
Resumen de: US20260246097A1
Busbar assemblies are provided. A busbar assembly according to an exemplary embodiment includes a busbar comprising a body portion extending in a first direction and a plurality of end portions, each of the plurality of end portions located at an end of the body portion in the first direction and having a through hole therein; and a protective cover comprising a cover portion surrounding the busbar, and a plurality of wing portions, each of the plurality of wing portions extending from the cover portion in a second direction, wherein the second direction intersects the first direction.
Resumen de: US20260246025A1
ABSTRACT: A battery pack (10) includes a battery module (100), a module housing body (300) that accommodates the battery module (100), a gas discharge portion (400) to discharge gas discharged from the battery module (100) out of the module housing body (300), and an upper heat-resistant sheet (610) and a lower heat-resistant sheet (620) that are at least partially disposed around a communication space (350) that communicates with the battery module (100) and the gas discharge portion (400) inside the module housing body (300).
Nº publicación: US20260246076A1 20/08/2026
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG ENERGY SOLUTION, LTD.
Resumen de: US20260246076A1
0000 The present disclosure provides a structure of a battery pack including a plurality of battery modules in a widthwise direction thereof. Each of the plurality of battery modules include: an end plate comprising at least a portion of a rear surface of the battery module; and a rear cover connected to a rear end of the battery module, the rear cover having open front end and made of a heat-resistant material. The rear cover includes a pair of partition plates extending in rear direction from two widthwise ends of a rear end of the battery module; and a venting hole facing an upward direction.
BOPI
Sede Electrónica
