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1102
resultados
Última actualización
29/08/2026 [07:33:00]
Resultados 775 a 800 de 1102
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: WO2026170782A1
The present disclosure relates to the technical field of battery management, and provides a control method and apparatus for a circulating current in a multi-branch parallel battery pack under a recharging operating condition, a device, and a storage medium. The control method for a circulating current in a multi-branch parallel battery pack under a recharging operating condition comprises: detecting a duration of a recharging operating condition of a multi-branch parallel battery pack; when the duration of the recharging operating condition is greater than a predefined duration, determining a recharging current limit according to a recharging current difference between branches, a maximum allowable recharging current, a maximum cell voltage of a branch having a highest recharging current, and a branch count; when the duration of the recharging operating condition is less than or equal to the predetermined duration, according to the recharging current difference between the branches and the maximum cell voltage of the branch having the highest recharging current, completing circulating current control under the recharging operating condition by means of performing thermal management on the battery pack. The present disclosure reduces circulating current impacts resulting from termination of a recharging operating condition.
Resumen de: US20260246111A1
0000 A battery processing device and a processing method. The battery processing device includes a material conveying assembly, a pairing assembly, and a welding assembly. The material conveying assembly is configured to convey a first electrode assembly and a second electrode assembly, where the first electrode assembly and the second electrode assembly each include an electrode main body and a tab part disposed on the electrode main body. The pairing assembly is configured to pair the first electrode assembly and the second electrode assembly such that the electrode main body of the first electrode assembly and the electrode main body of the second electrode assembly are stacked on each other. The welding assembly is configured to weld the tab part of the paired first electrode assembly and the tab part of the paired second electrode assembly.
Resumen de: US20260243696A1
A pole inspection device comprises image collection devices, a first light source, and a second light source; the image collection devices are movably arranged and have a first position where an extreme pole is inspected and a second position where a minimalistic pole is inspected; the first light source is provided on one side of the image collection devices and is configured to emit first light towards at least one side surface of the extreme pole in the first position of the image collection devices; the second light source is configured to be arranged above the image collection devices and surrounds the minimalistic pole; and the second light source is configured to emit second light towards the minimalistic pole in the second position of the image collection devices.
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: WO2026170940A1
Embodiments of the present application provide a battery cell and a manufacturing method therefor, and an electric device. The battery cell comprises a casing, an electrode assembly, and a filler. The electrode assembly comprises a first electrode assembly and a second electrode assembly; the first electrode assembly and the second electrode assembly are stacked in a first direction; in a second direction, the length of the second electrode assembly is greater than that of the first electrode assembly; the second electrode assembly has a first surface facing the first electrode assembly; when viewed in the first direction, the second electrode assembly has an overlapping region that overlaps with the first electrode assembly, and a non‑overlapping region that does not overlap with the first electrode assembly; the side wall of the first electrode assembly close to the non-overlapping region in the second direction and a first surface of the non-overlapping region form a first step; the casing forms a second step corresponding to the first step, and an accommodating space is formed between the first step and the second step; the second direction is perpendicular to the first direction; and the filler is provided in the accommodating space. The technical solution of the present application can improve the safety and reliability of the battery cell.
Resumen de: WO2026170941A1
Provided in the embodiments of the present application are a battery cell and a manufacturing method therefor, and an electrical device. The battery cell comprises a housing and electrode assemblies. A first electrode assembly and a second electrode assembly are stacked in a first direction; in a second direction, the length of the second electrode assembly is greater than the length of the first electrode assembly; the side wall of the first electrode assembly close to a non-overlapping region in the second direction and a surface of the non-overlapping region form a first step; the housing forms a second step corresponding to the first step, an accommodating space being formed between the first step and the second step; the second electrode assembly has a first region, and the first region comprises a region overlapping the accommodating space in the first direction; in the first region, the difference in the bonding force between any two second negative electrode sheets and second separators connected thereto is less than or equal to 2 N/m, and the bonding force between any second negative electrode sheet and a second separator connected thereto is greater than or equal to 5 N/m. The technical solution of the present application can improve the safety and reliability of the battery cell.
Resumen de: WO2026171221A1
The present application relates to the technical field of batteries. Disclosed are a battery, a battery pack, and a preparation method for a battery. The battery comprises: an electrode assembly, a first encapsulation film, and a second encapsulation film, wherein an accommodating groove for mounting of the electrode assembly is provided on the first encapsulation film, and the electrode assembly is arranged in the accommodating groove; the second encapsulation film is arranged opposite to the first encapsulation film, and a hot-melt region surrounding the periphery of the accommodating groove is reserved at each of the second encapsulation film and the first encapsulation film; and the hot-melt regions of the first encapsulation film and the second encapsulation film are respectively provided with a plurality of rows of embossments, the plurality of rows of embossments being arranged around the periphery of the electrode assembly, a spacing L 1 between adjacent embossments in the direction of width of the battery satisfying 0.1 mm≤L 1≤3 mm, and a spacing L 2 between adjacent embossments in the direction of length of the battery satisfying 0.1 mm≤L 2≤3 mm. In the present application, by providing the plurality of rows of embossments in the hot-melt regions and limiting the spacings between adjacent embossments, the melting uniformity of a hot-melt layer can be improved, a sealing effect can be improved, and the prolonging of the service life of a hot-melt pressing hea
Resumen de: WO2026170543A1
A battery cell, a battery device, and an electric device. The battery cell comprises an electrode assembly and an electrolyte, wherein 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 comprises a lithium-containing phosphate, and the porosity of the positive electrode sheet is 20-30%; a negative electrode film layer of the negative electrode sheet comprises a negative electrode active material, the negative electrode active material comprises graphite, and the porosity of the negative electrode sheet is 24-33%; the electrolyte comprises an electrolyte salt and a solvent, the solvent comprises a linear carboxylate ester and a linear carbonic ester, the mass percentage of the linear carboxylate ester in the electrolyte is 8.5%-40%, and the mass percentage of the linear carbonic ester in the electrolyte is 8.5%-50%. The battery cell simultaneously achieves good fast charging performance, good cycle performance and high energy density of a battery.
Resumen de: US20260243839A1
Provided are a battery diagnosis apparatus and a battery diagnosis method. The battery diagnosis apparatus includes a data obtaining unit configured to obtain a first target full-cell profile representing a relationship between capacity and voltage of a target cell at a first electric stimulation applied to the target cell, and temperature information of the target cell, and a control circuit configured to generate an estimated full-cell profile based on the first target full-cell profile and an overpotential profile. The control circuit determines a first performance factor group as a primary estimation result for charge/discharge performance of the target cell by applying a cell diagnosis logic to the estimated full-cell profile. The control circuit determines a second performance factor group as a secondary estimation result for the charge/discharge performance of the target cell by applying a factor correction model to the first performance factor group and the temperature information.
Resumen de: US20260245880A1
0000 A positive electrode material is presented for a rechargeable electrochemical cell that comprises a negative electrode, a positive electrode, and an electrolyte. The positive electrode material comprises a compound with the general formula ζ-A
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: US20260245970A1
0000 This all-solid-state battery comprises: a positive electrode layer; a solid electrolyte layer; a negative electrode layer; and an insulating layer disposed along the outer peripheral section of the positive electrode layer. The positive electrode layer has a first side to which a positive electrode layer inclined section is provided. In the positive electrode layer inclined section, the positive electrode layer is inclined so that the thickness thereof gradually decreases toward the outside. The insulating layer has an insulating layer inclined section at a portion where the positive electrode layer inclined section is interposed. In the insulating layer inclined section, the insulating layer is inclined so that the thickness thereof gradually decreases in the same direction as the positive electrode layer inclined section.
Resumen de: US20260245886A1
A positive electrode active material including lithium transition metal oxide particles in a form of a single particle. The lithium transition metal oxide has an average sphericity according to the following Equation 1 of 0.7 or more, and, when an electrode including the lithium transition metal oxide is rolled such that porosity is 20%, the average sphericity according to the following Equation 1 is 0.7 or more: Sphericity=(4πA)/P2 (1), wherein A is an area μm2 of the lithium transition metal oxide particle, and P is a perimeter μm of the lithium transition metal oxide particle. A positive electrode and a lithium secondary battery include the positive electrode active material.
Resumen de: US20260242972A1
A surface-treated steel sheet according to one aspect of the present invention is a surface-treated steel sheet including: a base steel sheet; a Ni-containing layer disposed on a surface of the base steel sheet; and a Ni—W alloy layer disposed on a surface of the Ni-containing layer, wherein the Ni-containing layer includes an Fe-diffused alloy layer, and the surface-treated steel sheet includes a W depletion layer in a range from a surface of the Ni—W alloy layer to a depth of 10 nm. In a method for manufacturing a surface-treated steel sheet according to another aspect of the present invention, an atmospheric dew point in annealing is set to −25 to 5° C., a soaking time in the annealing is set to 10 to 180 seconds, and a maximum temperature in the annealing is set to 630 to 860° C.
Resumen de: US20260243833A1
0000 In a battery analysis system, a data reception unit receives battery data of a battery pack mounted on an apparatus via the apparatus or a data relay system. A battery data retention unit stores the battery data that have been received. A battery state analysis unit reads the battery data that has been stored, analyzes the battery data that has been read, and estimates a battery state for each predetermined analysis item. A data amount controller controls an amount of battery data to be stored in the battery data retention unit according to at least one analysis item selected by a user.
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: US20260245193A1
0000 A monitoring device includes an image acquisition unit configured to capture an image at least one process processing device involved in the manufacturing of a battery cell, a state determination unit configured to generate a first determination result by analyzing the acquired image using an artificial intelligence model trained to assess the condition of a top insulator of the battery cell and determine whether the battery cell is defective, and a determination unit configured to determine whether the battery cell is defective based on the first determination result.
Resumen de: US20260246274A1
0000 An energy storage system (ESS) includes a plurality of battery units, a plurality of direct current-direct current (DC-DC) converters respectively connected to the plurality of battery units to convert an input voltage from a connected battery unit into an output voltage, and a controller configured to control the plurality of DC-DC converters such that a summed voltage of output voltages of the plurality of DC-DC converters is an alternating current (AC) voltage.
Resumen de: US20260245949A1
Provided are a lithium metal battery and a manufacturing method therefor, the lithium metal battery including: a cathode; an anode current collector; and an electrolyte layer arranged between the cathode and the anode current collector, wherein the electrolyte layer includes a gel-type polymer electrolyte, and the gel-type polymer electrolyte includes a crosslinked polymer and a liquid electrolyte containing a lithium salt and an organic solvent, the crosslinked polymer including a polymerization product of a multifunctional polymerizable monomer and one or more selected from a compound of Formula 1 and a compound of Formula 1-1. Descriptions of Formula 1 and Formula 1-1 are as set forth in the detailed description.
Resumen de: US20260245966A1
Provided are an electrolyte and a lithium secondary battery including the same, the electrolyte including: a first lithium salt including a lithium ion and a first anion; a second lithium salt including a lithium ion and a second anion; and a solvent including a fluorine-containing linear ester, wherein a dissociation degree of the first lithium salt with respect to the fluorine-containing linear ester is greater than a dissociation degree of the second lithium salt with respect to the fluorine-containing linear ester.
Resumen de: US20260243622A1
The present disclosure provides a battery cell capable of detecting electrolyte leakage, including: an electrode assembly; an electrolyte; a case 100 comprising a receptor 110 accommodating the electrode assembly and the electrolyte, and a sealing portion 120 at an edge the receptor 110 and sealing the receptor 110 with the electrode assembly and the electrolyte therein; and a leakage sensor 200 coupled to and at the sealing portion 120 configured to detect the electrolyte leaking from the case 100. The leakage sensor 200 includes a conductor 220, at least a portion of the conductor 220 adjacent to and extending along an edge of the sealing portion 120. At least one of resistance, current and voltage of the electric circuit is configured change when leaked electrolyte contacts the conductor 220.
Resumen de: US20260245862A1
0000 The present disclosure provides a method (200) of manufacturing a graphite-based material for an electrode. The method (200) includes the steps of: shaping a block material comprising graphite into a raw material block; coating the raw material block with a second material, wherein the second material comprises carbon; and heating the coated raw material block to enable a graphitization of the coated raw material block to produce a carbon coated graphite-based material. The coated raw material block is heated to a temperature of greater than about 2600° C. in order to remove impurities. Such a process yields a graphite powder with a high purity content, of greater than about 99.95%. The present disclosure further provides an electrode made of the graphite-based material.
Resumen de: US20260245904A1
0000 Disclosed is an electrode composition including an electrode active material, a conductive material, and a binder, in which the binder is composed of a linear polymer and the pH is 5 or more and 7 or less when measured at 25° C., an electrode slurry including the same, an electrode, a lithium secondary battery, and a method for preparing the electrode composition. The electrode composition provides an advantage of simultaneously preventing the generation of hydrogen gas due to surface oxidation reactions during the preparation and storage of the polymer binder-containing electrode composition and/or electrode slurry while providing an advantage of achieving excellent adhesion strength by adjusting the pH of the polymer binder itself.
Nº publicación: US20260245985A1 20/08/2026
Solicitante:
SK ON CO LTD [KR]
SK On Co., Ltd.
Resumen de: US20260245985A1
0000 In order to provide a pouch battery having improved lifespan performance, an embodiment of the present disclosure provides a pouch battery comprising: a pouch case including an accommodation part in which an electrode assembly comprising a cathode and an anode is accommodated and a cover part which covers the accommodation part; and the electrode assembly accommodated and sealed in the pouch case, wherein: the pouch battery includes a body part in which the electrode assembly is located and a sealing part where the accommodation part and the cover part are sealed; and a gas storage part and an isolation part which isolates the gas storage part from the body part are included in at least a portion of the sealing part.
BOPI
Sede Electrónica
