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1362
resultados
Última actualización
02/05/2026 [08:13:00]
Resultados 75 a 100 de 1362
Resumen de: WO2026086672A1
The present application relates to the technical field of batteries, and in particular to a battery cell and a battery pack. The battery cell comprises: a cover plate assembly comprising a cover plate body and a pole provided on the cover plate body. A plurality of protruding single-piece tabs arranged at intervals in the thickness direction of an electrode assembly are formed on a side portion of the electrode assembly, the plurality of single-piece tabs converge in a direction close to one another to form a tab, the end of the tab close to the electrode assembly is formed as a folded portion, and the single-piece tabs of the folded portion are arranged at intervals. The end of the tab away from the electrode assembly is formed as a mounting portion, and the single-piece tabs of the mounting portion are attached to each other. The mounting portion and the pole that is not connected to the cover plate body are welded to form a weld mark, and then the tab is bent so that the folded portion and the weld mark are arranged at an angle. The present application can effectively shorten the length of the tab, reduce costs, facilitate processing, and reduce the space of tab folding. In this way, space inside of the battery cell is saved, and can be used to increase the capacity of the battery cell.
Resumen de: US20260121018A1
A positive electrode material, including a lithium manganese oxide, where a Raman spectrum of the positive electrode material has a characteristic peak 1 within a range of 401 cm−1 to 410 cm−1 and a characteristic peak 2 within a range of 598 cm−1 to 611 cm−1. The positive electrode material has high charge gram capacity and excellent structural stability, thereby improving the cycling and storage performance of the electrochemical apparatus while greatly increasing the energy density of the electrochemical apparatus.
Resumen de: US20260121049A1
An electrode assembly includes a positive electrode material layer, where the positive electrode material layer of the electrode assembly includes a first positive electrode material LiMnxFe1-xPO4, a single-side thickness of the positive electrode material layer is T1 μm, and 22≤T1≤110. A length of a positive electrode plate is L1 mm. The electrode assembly further includes at least one positive electrode tab. When there is one positive electrode tab, the positive electrode tab is a centrally disposed tab structure; or when there are multiple positive electrode tabs, a ratio of the number of the positive electrode tabs to L1 is B, and 0.002≤B≤0.01.
Resumen de: US20260121225A1
An electrochemical apparatus includes a separator and an electrolyte solution, wherein the separator includes a base film and a first coating disposed on a surface of the base film, the first coating includes a solid-state electrolyte material, and the solid-state electrolyte material includes element Ti; the electrolyte solution includes compound I, and the compound I includes at least one selected from the group consisting of vinylene carbonate, vinyl ethylene carbonate, fluoroethylene carbonate, and 4,5-difluoro-1,3-dioxolan-2-one; and based on a mass of the electrolyte solution, a mass percentage of the compound I is P %, wherein P ranges from 0.5% to 20%, and based on a mass of the first coating, a mass percentage of the element Ti is Q %, wherein 1≤Q/P≤60.
Resumen de: US20260121137A1
A thermal runaway experimental apparatus and a method for using the same are described. The thermal runaway experimental apparatus includes a heating mechanism and a cooling mechanism. The heating mechanism has a reaction chamber therein for accommodating a battery cell, the heating mechanism being configured to heat the battery cell to trigger thermal runaway of the battery cell. The cooling mechanism is configured to provide a cooling medium into the reaction chamber to cool the battery cell, such that the thermal runaway of the battery cell is terminated. This thermal runaway experimental apparatus can cool the battery cell and terminate the thermal runaway reaction at any stage or any temperature point during the thermal runaway experiment of the battery cell, thereby enabling the study of the internal reaction mechanism of the battery cell at any stage or any temperature point during the thermal runaway process.
Resumen de: US20260121219A1
The present invention relates to a secondary battery which can reduce thermal energy of internal gas produced inside the case. Disclosed as an example is a secondary battery comprising: an electrode assembly; a case in which the electrode assembly is accommodated; a cap plate which seals the top of the case and includes a vent having a safety vent formed therein; and a rotating member which is coupled to the bottom of the vent hole.
Resumen de: US20260118440A1
The provided is a high-efficiency grading method and system for lithium-ion cells, and a storage medium. The provided aims to solve the problem of excessively long capacity grading time for lithium-ion cells. The high-efficiency grading method includes: obtaining discharge capacities C1, discharge endpoint voltages V1, rebound voltages V2, and remaining capacities C2 of lithium-ion cells; subjecting data of the obtained discharge capacities C1 or discharge endpoint voltages V1 to slicing and classification processing; plotting a scatter plot of the remaining capacities C2 against the rebound voltages V2 according to the remaining capacities C2 and corresponding rebound voltages V2 of the lithium-ion cells, performing curve fitting, and deriving remaining capacity prediction model equations; and calculating full discharge capacities of a new batch of lithium-ion cells. The provided omits the full discharge step in the conventional grading process, greatly shortening the capacity grading time and improving production efficiency.
Resumen de: US20260116777A1
A high-performance lithium manganese oxide cathode material with a low oxygen vacancy proportion is provided. According to characterization by electron paramagnetic resonance spectroscopy (EPR), an oxygen vacancy content in the high-performance lithium manganese oxide cathode material is 10 ppm to 10,000 ppm. A preparation method of the cathode material includes the following steps: thoroughly mixing a Li source compound, a Mn source compound, and a fluxing agent element-containing compound, and conducting first calcination in an air atmosphere to produce a first calcined product; mixing the first calcined product with a monovalent metal ion-containing compound, and conducting second calcination in an air atmosphere, where a temperature of the second calcination is lower than a temperature of the first calcination; and cooling and crushing.
Resumen de: US20260121076A1
A secondary battery that includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode includes a positive electrode active material and a plurality of fibrous materials. The fibrous materials are tangled with each other and form a three-dimensional mesh structure. The fibrous materials each include a carbon fiber part, and a plurality of carbon covering parts that cover a surface of the carbon fiber part and hold the positive electrode active material. The carbon covering parts are spaced from each other in an extending direction of the carbon fiber part. The carbon fiber part includes a plurality of exposed parts that are not covered with the carbon covering parts. The fibrous materials have a flexibility F that is higher than or equal to 8.6 and lower than or equal to 19.2.
Resumen de: US20260118434A1
This application provides a battery encoding method and apparatus, an electronic device, and a battery. The method includes: obtaining location information of a battery cell in a battery; obtaining chip identification information of a functional chip of the battery cell; and storing information on a correspondence between the location information of the battery cell and the chip identification information into a battery management unit of the battery. The chip identification information is used for implementing a communication function between the battery management unit and the functional chip.
Resumen de: US20260121031A1
0000 Anodes having a laminate comprised of a lithium metal having adhered thereto a layer comprised of a thermoset polymer may be formed by contacting a lithium foil with an addition monomer to form an uncured layer and polymerizing the addition monomer forming a layer of a thermoset polymer adhered to the lithium metal foil or by contacting a metal foil other than lithium with an addition monomer to form an uncured layer, polymerizing the addition monomer forming a layer of a thermoset polymer adhered to the metal foil to form a lithium free metal anode and electrochemically introducing lithium ions to the lithium free metal anode to form the lithium metal laminate anode.
Resumen de: US20260117411A1
A process for producing a graphite-containing metal oxide electrode includes: a) providing an electrolysis cell having an electrode, a further electrode and an aqueous and/or non-aqueous carbonyl-and cyano-free solvent, b) introducing black matter and a proton source into the solvent present in the electrolysis cell, where the black matter includes graphite-supported precious metal-free metal oxides, and c) applying a voltage to the electrode and the further electrode, such that the precious metal-free metal oxides and graphite provided by means of the black matter are deposited on the electrode to produce a graphite-containing metal oxide coating on the electrode for formation of the graphite-containing metal oxide electrode. The graphite-containing metal oxide electrode is used for production of hydrogen and/or oxygen by (photo)electrochemical water splitting and to an electrolysis cell for production of hydrogen and oxygen by (photo)electrochemical water splitting.
Resumen de: US20260121181A1
A secondary battery includes a housing, an electrode assembly disposed in the housing, and a first conductive plate. The electrode assembly is a stacked structure. The electrode assembly includes a first electrode plate, a separator, and a second electrode plate that are stacked sequentially in a first direction. The first conductive plate is connected to the first electrode plate. The first conductive plate extends out of the housing along a second direction perpendicular to the first direction. The first electrode plate includes a first outer electrode plate located at an outermost layer of the electrode assembly. When viewed in a third direction perpendicular to both the first direction and the second direction, the first outer electrode plate includes a first region and a second region connected in the second direction. When viewed in the third direction, the first region includes a first end connected to the second region.
Resumen de: US20260116690A1
The invention relates to a device for joining webs of material for the production of energy cells, in particular electrode webs, wherein a running-out web of material can be joined to a new web of material. A first pivoting element is provided for the new web of material and a second pivoting element is provided for the running-out web of material, wherein the first pivoting element is adapted to hold the leading end of the new web of material and wherein the second pivoting element is adapted to deflect the running-out web of material in the direction of the first pivoting element. A cutting device is provided, which is adapted to cut or weaken the running-out web of material deflected by the second pivoting element to produce a web end of the running-out web of material at a separating line. The device is adapted to accelerate the leading end of the new web of material with the first pivoting element and to synchronize with the running-out web of material at the speed at which the web end of the running-out web of material deflected by the second pivoting element is conveyed. The leading end of the new web of material can be joined to the web end of the running-out web of material between the first and second pivoting elements by means of at least one adhesive tape.
Resumen de: US20260121035A1
The invention provides a coated particulate material comprising a plurality of core particles, whereat each core particle comprises at least one compound of formula (I), LiN1-x-y-zCoxMnyMzO2 (I), and the surfaces of the core particles exhibit a coating comprising at least one polycationic organic polymer or at least one polyanionic organic polymer.
Resumen de: US20260117075A1
A composition for coating metal surfaces includes a binding agent having a phenolic resin, an epoxy resin, in particular phenoxy resin, a polyester resin (soft resin) and a polyisocyanate, further having at least one conductive pigment, a corrosion resistant pigment and a solvent. The coating layer obtained from the composition by drying is corrosion-resistant, non-flammable, forming-compatible and weldable.
Resumen de: US20260118282A1
Integrated quality monitoring techniques enable a plant operator to simultaneously view and analyze data that are derived from a plurality of sensors. An apparatus for and a method of inferring quality of a sheet roll consecutively monitors new data including: (a) surface defects of the sheet roll from vision defect tracking system, (b) measurement defects of the sheet roll from vision measurement system, and (c) quality and defect data of the sheet roll from quality control system, and simultaneously integrating the new data with old data in history. Data connect application programming interface can furnish historical, current and alarms data for analysis to an aggregator node for reporting and analysis.
Resumen de: US20260116776A1
0000 The present application relates to the technical field of batteries, and in particular to a positive electrode material and a preparation method thereof, a positive electrode sheet, and a sodium-ion battery. The positive electrode material has a chemical general formula of NaNiZn
Resumen de: US20260115983A1
The temperature control device of the disclosure includes: a pair of metal plates; a resin flow path wall part sandwiched between the pair of metal plates; and a resin fixing part fixing one of the pair of metal plates to the other metal plate. Regarding the resin flow path wall part, an internal flow path for circulating a heat exchange medium is formed by at least one of the pair of metal plates and the resin flow path wall part. The resin fixing part and the resin flow path wall part are fused together. The crystallinity of the resin flow path wall part is lower than the crystallinity of the resin fixing part. A difference between the crystallinity of the resin flow path wall part and the crystallinity of the resin fixing part is 3% or more.
Resumen de: US20260118386A1
A shunt includes a current sampling member. The current sampling member is provided with a first connection segment and a second connection segment. N sampling points are provided on each of the first connection segment and the second connection segment. The N sampling points on the first connection segment and the N sampling points on the second connection segment are symmetrically provided along the midline of the current sampling member, and each of sampling points is led out through an impedance member.
Resumen de: US20260121146A1
A method for producing a lithium-containing electrode for a lithium-ion containing accumulator is provided, including:—producing a metal foil;—coating a surface of the metal foil with a graphite layer;—introducing the metal foil into an electrochemical cell as a first electrode, which is used as a cathode;—introducing a second, lithium-containing electrode into the cell used as an anode;—wherein lithium compounds are introduced into the second electrode, the lithium compounds originating from thermally decomposed electrode material of a lithium-ion accumulator;—introducing a non-aqueous electrolyte into the cell;—closing the cell under inert conditions;—applying an electrical current to the electrodes of the cell such that lithium ions migrate from the lithium-containing anode to the cathode in the form of the metal foil provided with the graphite layer, through the non-aqueous electrolyte; and—the surface of the metal foil is intercalated to form lithium ions.
Resumen de: US20260121260A1
0000 A battery system is described with methods and systems for thermally isolating a battery module experiencing thermal runaway. In one embodiment, a thermal actuator can cut a busbar coupling neighboring battery modules together, thereby preventing or slowing the spread of thermal runaway. In other embodiments, a fusible material can joint portions of a busbar. High temperatures can cause the fusible material to melt off of the busbar portions and thereby break the thermal or electrical conductivity between busbar portions and neighboring modules.
Resumen de: US20260116692A1
An apparatus for removing wrinkles from a sheet material, includes: an expander roll that rotates in a bent state with respect to a rotation axis bent to straighten and remove wrinkles formed in a sheet material being transferred to be wrinkle-removed; a roll bender that generates a bending moment to bend the expander roll; a roll rotator that rotates the expander roll; a roll controller that controls the operation of the roll bender and the roll rotator; a vision camera that photographs one surface of the sheet material being wrinkle-removed, so as to generate an input image; and a wrinkle detection module that detects wrinkles in the sheet material to be detected, using the input image.
Resumen de: US20260118059A1
An oven drying apparatus and an electrode plate manufacturing device are described. The oven drying apparatus comprises an oven and a plurality of control units. The oven is formed by splicing a plurality of oven modules, each of the oven modules comprises an oven chamber and a blowing apparatus, the blowing apparatus is at least partially arranged inside the oven chamber, and the blowing apparatus is configured to blow air towards the material strip inside the oven chamber. The plurality of control units each corresponds to one of the plurality of oven modules, each of the control units is configured to control an outlet air parameter of the blowing apparatus of the corresponding oven module. The technical solution provided by the present application can improve the quality of batteries with reduced cost.
Nº publicación: US20260121256A1 30/04/2026
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd.
Resumen de: US20260121256A1
A bridge structure for combining a first electrode assembly stacked with a second electrode assembly includes a first welding part to which a first electrode tab of the first electrode assembly is bonded; a second welding part to which a second electrode tab of the second electrode assembly is bonded; and a connecting part which connects the first welding part and the second welding part to each other. The first and second welding parts are offset from one another in a diagonal direction that is oblique to the stacking direction of the first and second electrode assemblies. The connecting part extends in the diagonal direction to connect the first and second welding parts to each other.
BOPI
Sede Electrónica
