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738
resultados
Última actualización
02/11/2026 [10:25:00]
Resultados 225 a 250 de 738
Resumen de: US20260341892A1
This power storage device (10) is provided with: an electrode body (14) which is obtained by winding a positive electrode (11), a negative electrode (12), and a separator (13); a polygonal tubular case (20) which has a polygonal tubular part and an opening provided at one end of the tubular part, and which houses the electrode body (14) and an electrolytic solution; and a polygonal sealing body (30) which closes the opening of the case (20). A groove-shaped thin part (34A) which releases a gas inside the case (20) to the outside is provided at a corner of a bottom surface part (20B) of the case (20) or at a corner of the sealing body (30).
Resumen de: US20260341800A1
A nonaqueous electrolyte secondary battery comprises a wound-type electrode body and a non-aqueous electrolyte. A negative electrode has: a negative electrode current collector; a first negative electrode active material layer provided on a first surface of the negative electrode current collector facing the inner side of the electrode body; and a second negative electrode active material layer provided on a second surface of the negative electrode current collector facing the outer side of the electrode body. Each of the negative electrode active material layers has a density of 1.3 g/cm3 or more, and contains silicon or silicon-containing material, and carboxymethyl cellulose or a salt thereof. The first etherification degree (DS1) of carboxymethyl cellulose or a salt thereof contained in the first negative electrode active material layer is greater than the second etherification degree (DS2) of carboxymethyl cellulose or a salt thereof contained in the second negative electrode active material layer.
Resumen de: US20260341722A1
This invention in one aspect discloses a composite for enabling ambient stability of an electrochemical device. The composite comprises an active material, wherein individual particles and/or clusters of several particles of the active material are conformally coated with a protective barrier layer, via graphene-cellulose composite coating. The coating limits contact between atmospheric moisture and the LNO surface, which minimizes the generation of lithium impurities.
Resumen de: US20260341830A1
The present disclosure provides an energy storage system. For example, an energy storage system a chassis; a battery module comprising a plurality of battery cells and a thermal interface material disposed between a wall of the chassis and the plurality of battery cells such that if a temperature within the chassis is less than a predetermined temperature, the thermal interface material transfers heat to the wall of the chassis, and if the temperature within the chassis is equal to or greater than the predetermined temperature, the thermal interface material creates a thermal barrier that blocks heat from a hotter cell of the plurality of battery cells to the ambient and to other cells of the plurality of battery cells.
Resumen de: US20260341669A1
A manufacturing apparatus includes: a first molding roll and a second molding roll that compress a particulate dry electrode compound into a compound sheet, the second molding roll supporting and conveying the compound sheet on a circumferential surface; and a first stretching roll arranged such that an interval to the second molding roll is smaller than a thickness of the compound sheet supported by the second molding roll to stretch the compound sheet. Relative positions of the three rolls are defined such that an imaginary line passing through a rotation axis of the first molding roll and a rotation axis of the second molding roll and an imaginary line passing through a rotation axis of the second molding roll and a rotation axis of the first stretching roll extend in directions in which the imaginary lines intersect each other.
Resumen de: US20260338473A1
Disclosed are a conveying device and a cooling furnace, where the conveying device includes first brackets and second brackets spaced apart in a first direction and arranged opposite to the first brackets, and the first brackets and the second brackets together define a limiting space for locating secondary cells. The conveying device further includes an adjustment assembly to which the first brackets and the second brackets are slidably connected, and which are slidable in a first direction with respect to the adjustment assembly, so that the limiting space can be increased or decreased in size in the first direction, and so that the limiting space can be adapted to the size of the secondary cells in the first direction. The conveying device provided by the present invention can be adapted to convey the secondary cells having different sizes, thereby improving the applicability of the cooling furnace having the conveying device.
Resumen de: US20260336467A1
A charging system can comprise a processor configured to perform capacity checks at predetermined intervals. The capacity checks can include commanding, via a processor, charging each cell in the battery module at a first constant rate to a first voltage; commanding, via the processor, tapering of a charge at a constant voltage until a current reaches a predetermined amperage; commanding, via the processor, discharging the battery module to a second voltage; and determining, via the processor, a capacity of the battery module in response to the discharging.
Resumen de: US20260335940A1
The invention relates to a method for cleaning workpiece carriers (16) for battery cell lacquering, in which method a coating applied to the workpiece carrier (16) during the battery cell lacquering is removed by mechanical machining. The invention further relates to a device (40) for cleaning workpiece carriers (16) for battery cell lacquering, and to a vehicle having a battery with at least one battery cell which is lacquered with a workpiece carrier (16) which is cleaned by a method according to the invention and/or a device according to the invention.
Resumen de: US20260341816A1
A battery pack of the present invention includes: a battery module; a pack housing provided with a pack case, in which the battery module is accommodated, and a pack cover configured to open and close the pack case; and a dew condensation detection sensor configured to detect dew condensation through an insulation abnormality signal generated inside the pack case, wherein the dew condensation detection sensor includes a first conductor and a second conductor connected to each other by the dew condensation generated inside the pack case to generate the insulation abnormality signal.
Resumen de: US20260336962A1
The present invention relates to a stacking device and a method for manufacturing an all-solid-state battery, and more particularly, a stacking device including a main portion, and a clamp unit disposed on the main portion, wherein the clamp unit includes a first clamp unit including a first fixing portion and a first vertical driving portion configured such that the first fixing portion moves vertically, and a second clamp unit including a second fixing portion and a second vertical driving portion configured such that the second fixing portion moves vertically. The first clamp unit and the second clamp unit are spaced apart in a first direction, the first fixing portion of the first clamp unit is configured to grip an upper surface of a first member, the second fixing portion of the second clamp unit is configured to grip an upper surface of a second member, and the upper surface of the first member and the upper surface of the second member are positioned at different heights.
Resumen de: WO2026222977A1
The present invention relates to the technical field of solid-state batteries, and discloses a sulfide electrolyte membrane having a gradient particle size distribution, and a preparation method therefor and the use thereof. The preparation method comprises: firstly preparing a solution of a modified binder by blending polyurethane and cis-1,4-polybutadiene rubber; then formulating three slurries having different particle sizes using a sulfide electrolyte, the modified binder and an organic solvent; sequentially coating the slurries on a substrate in descending order of the average particle sizes of the sulfide electrolyte in each slurry; allowing each wet film layer to dry before applying the next layer, so as to form a composite wet film having a gradient particle size distribution; and performing vacuum drying and a hot rolling treatment to finally prepare a target electrolyte membrane.
Resumen de: WO2026223150A1
The present application relates to the technical field of energy storage, and discloses an energy storage apparatus and an electronic device. The energy storage apparatus comprises: a casing, enclosing an accommodating cavity having an opening; an electrode assembly, accommodated in the accommodating cavity; and an end cover assembly, comprising a cover plate, an electrode terminal, and a sealing member. The cover plate seals the opening of the accommodating cavity, and is provided with a welding hole communicated with the accommodating cavity; the electrode terminal passes through the cover plate; the end portion of the electrode terminal facing the electrode assembly is provided with a connection portion; the connection portion is provided with a welding portion exposed at the welding hole; the welding portion is electrically connected to the electrode assembly; and the sealing member seals and is limited in the welding hole.
Resumen de: US20260341790A1
The present disclosure relates to a compound for an electrolyte solution, a compound for an electrolyte solution additive, an electrolyte solution material, an electrolyte solution additive, an electrolyte solution for a secondary battery, and a secondary battery, and provides an electrolyte solution for a secondary battery, including a novel compound, or an isomer thereof.
Resumen de: US20260337051A1
Provided in the present application are a positive electrode active material, a preparation method, a positive electrode sheet, a secondary battery, and an electric device. The positive electrode active material has the following general formula: LiaNixM1yMnzM21-x-y-zO2, where M1 and M2 each independently include one or a plurality of Co, Al, B, Zr, Sr, Y, Sb, W, Ti, Mg, or Nb, 0.8≤a≤1.2, 0.55≤x<1, 0
Resumen de: US20260341741A1
0000 Provided is a technique for suppressing a decrease in cell capacity while suppressing a short circuit between a positive electrode and a negative electrode. The present disclosure relates to a lithium secondary battery including a positive electrode and a negative electrode which face each other with a separator being interposed between the positive electrode and the negative electrode, in which the positive electrode includes a positive electrode current collector configured to sandwich a resin layer between a first metal layer and a second metal layer, and a positive-electrode active material layer provided on the positive electrode current collector, the first metal layer includes a first portion in which the positive-electrode active material layer is not provided, the second metal layer includes a second portion in which the positive-electrode active material layer is not provided, and the first portion and the second portion have different dimensions in both a width direction and a length direction.
Resumen de: US20260341932A1
An electrolyte injection system includes an electrolyte injection device, an upper computer, and a control device. The upper computer is used for: acquiring electrolyte injection data of the battery cell after battery cell electrolyte injection is completed, and locally recording the electrolyte injection data of the battery cell as historical electrolyte injection data; determining a first battery cell set placed in a battery cell tray that currently enters the electrolyte injection device; on the basis of the local historical electrolyte injection data, determining from among the first battery cell set a second battery cell set, electrolyte injection of which has not been completed; determining from among the second battery cell set a target battery cell set to be subjected to electrolyte injection; and sending to the control device the position of each target battery cell in the target battery cell set in the battery cell tray.
Resumen de: US20260341692A1
This disclosure provides a titanium doped anhydrous ferric phosphate material, a preparation method and a use thereof, which belongs to the technical field of preparation of ferric phosphate materials. The preparation method of the titanium doped anhydrous ferric phosphate material includes: mixing the titanium containing ferrous sulfate raw material solution and the titanium free ferrous sulfate raw material solution to obtain a mixed solution; mixing the mixed solution with an oxidant and a phosphorus source to obtain a slurry containing ferric phosphate and titanium phosphate; and subjecting the slurry to aging, rinsing, drying, and sintering sequentially to obtain the titanium doped anhydrous ferric phosphate material. In this disclosure, the content of titanium element in the final product is stable and controllable; the titanium doped anhydrous ferric phosphate material has a uniform nanoscale particle stacking morphology, which is conducive to the application of preparing battery materials.
Resumen de: US20260341870A1
A battery pack may include a battery module; a pack tray to accommodate the battery module therein and having a top opening; a pack cover disposed at the top opening of the pack tray to cover an accommodation space where the battery module is accommodated; and a variable coupling part to elastically couple the pack tray and the pack cover to each other such that the accommodation space is capable of being variably expanded in response to an increase in pressure when an event occurs.
Resumen de: US20260341686A1
The present disclosure relates to a lithium-ion secondary battery, a battery apparatus, an electrical apparatus, and preparation methods for a positive electrode active material and a positive electrode plate. The battery includes a positive electrode plate, a negative electrode plate, and an electrolyte. The positive electrode plate comprises a current collector and a film layer disposed on at least one side of the collector. The film layer comprises a positive electrode active material including lithium-containing transition metal phosphate particles, at least part of the surfaces of which are coated with a carbon material. In a cross-section along the electrode plate thickness direction, the DA90 of the particles ranges from 1400 nm to 2100 nm, and the particle size concentration ratio (DA90-DA10)/DA50 ranges from 1.855 to 2.375, wherein DA90, DA50, and DA10 respectively denote the particle sizes corresponding to 90%, 50%, and 10% of the area cumulative distribution.
Resumen de: US20260341856A1
A secondary battery includes a casing, an electrode assembly disposed in the casing, and a sealing element configured to seal the casing. The casing includes a first casing and a second casing that are insulated and that jointly form an accommodation cavity. The accommodation cavity is filled with an electrolyte solution. The first casing and the second casing are disposed facing each other, with a clearance in between. The first casing includes a first metal layer and a second metal layer that covers a surface of the first metal layer, the surface being away from the accommodation cavity. Hardness of both the second casing and the second metal layer is greater than hardness of the first metal layer. A positive electrode of the electrode assembly is electrically connected to the first metal layer. A negative electrode of the electrode assembly is electrically connected to the second casing.
Resumen de: US20260337801A1
The present invention relates to the electrochemical production of hydrogen and lithium hydroxide from Li+-containing water using a LiSICon membrane. The problem addressed by the present invention is that of specifying a process which is operable economically even on an industrial scale. The process shall especially exhibit a high energy efficiency and achieve a long service life of the membrane even when the employed feed contains impurities harmful to LiSICon materials. A particular aspect of the process is that the cell simultaneously separates off the lithium via the membrane and effects electrolysis of water. An essential aspect of the process is that the electrochemical process is performed in a basic environment, more precisely at pH 9 to 13. The pH is adjusted by addition of a basic compound to the feed.
Resumen de: US20260342077A1
A battery pack includes a battery module including a plurality of single cells, a breaking device connected in series to the battery module, a current sensor, and a controller. A first end of the current sensor is connected to a positive output end of the battery pack, and a second end of the current sensor is connected to a negative output end of the battery pack, to detect a current difference between the positive output end and the negative output end of the battery pack. The controller is configured to: when the current difference detected by the current sensor is greater than a first threshold, control the breaking device to be turned off, to quickly cut off a fault when the short-circuit to ground fault occurs in the cell in the battery pack, so as to ensure safe operation of the entire energy storage system.
Resumen de: US20260341799A1
An electrode assembly includes a positive electrode, a negative electrode, a separator, and an avoidance recess part. The separator is disposed between the positive electrode and the negative electrode, and the avoidance recess part is defined in any one of the positive electrode and the negative electrode. The avoidance recess part is defined to be recessed in an area overlapping an end of a remaining electrode of the positive electrode and the negative electrode. A secondary battery including the same is also provided.
Resumen de: US20260341779A1
A solid electrolyte according to one aspect of the present invention contains a lithium element, a phosphorus element, a sulfur element, a halogen element, and an aluminum element, has a crystal structure, and satisfies both of the following formulas (a1) and (b1) or both of the following formulas (a2) and (b2). 2.89
Nº publicación: US20260341691A1 29/10/2026
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd.
Resumen de: US20260341691A1
The present invention relates to a method of preparing a lithium secondary battery which includes steps (1) to (3) below. (1) preparing a first positive electrode active material by mixing a small particle lithium composite transition metal oxide having an average particle diameter (D50) of less than 7 μm with a boron-containing raw material and performing a heat treatment;(2) preparing a second positive electrode active material by mixing a large particle lithium composite transition metal oxide having an average particle diameter (D50) of 8 μm or more with a cobalt-containing raw material and a boron-containing raw material and performing a heat treatment;(3) mixing the first positive electrode active material and the second positive electrode active material to prepare a positive electrode material having a bimodal particle diameter distribution.
BOPI
Sede Electrónica
