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1190
resultados
Última actualización
25/10/2026 [07:33:00]
Resultados 725 a 750 de 1190
Resumen de: WO2026216254A1
This invention is characterized by comprising: a winding mechanism (110) which has a rotatable winding core (111) and which winds a first electrode (11), a second electrode (12), and a separator (13) by rotation of the winding core (111); and a transport mechanism (120) that performs transport with respect to the winding core (111). This invention is also characterized in that: the transport mechanism (120) has a cutting device (131) that cuts the first electrode (11), and a transport device (133) that is disposed closer to the winding core (111) than the cutting device (131) and that transports the first electrode (11) to the winding core (111) by rotation of transport rollers (134); the transport device (133) is configured to enable adjustment of the position of the first electrode (11) in the width direction; and during at least a partial period when the first electrode (11) is wound, the speed at which the first electrode (11) is wound around the winding core (111) is made greater than the speed at which the first electrode (11) is transported by the transport device (133).
Resumen de: WO2026214208A1
A battery cell. The battery cell comprises a positive electrode sheet. The positive electrode sheet comprises a positive electrode current collector, a positive electrode film layer arranged on at least one side of the positive electrode current collector, and a bottom coating located between the positive electrode current collector and the positive electrode film layer arranged on at least one side of the positive electrode current collector, wherein the positive electrode film layer comprises polycrystalline particles, the bottom coating comprises first single crystal particles, the volume particle size distribution Dv99 of the first single crystal particles ranges from 10 μm to 20 μm, the first single crystal particles comprise cobalt, and on the basis of the total number of moles of transition metals in the first single crystal particles, the molar ratio of cobalt in the first single crystal particles ranges from 4.5% to 10%.
Resumen de: US20260321868A1
A pressure relief device is disclosed, such as may be used with a battery. According to one embodiment, the pressure relief device may comprise a flanged portion; a curved surface; and a line of weakness on the curved surface. The line of weakness may comprise a first end, a central line portion, and a second end, wherein at least one of the first end or the second end extends outside of a plane defined by the central line portion. The curved surface may have an aspect ratio greater than 1:1.
Resumen de: WO2026216129A1
This method for producing a sulfide-based solid electrolyte material comprises: a raw material preparation step (S01) for preparing an electrolyte raw material containing elements constituting the sulfide-based solid electrolyte material; and a synthesis step (S02) for synthesizing the sulfide-based solid electrolyte by heating the electrolyte raw material. In the raw material preparation step (S01), a sulfur raw material is blended such that the ratio of sulfur in the electrolyte raw material exceeds the stoichiometric ratio of a target composition. In the synthesis step (S02), the synthesis is performed in the presence of liquid-phase sulfur at the point when the electrolyte raw material has been heated to 400 °C.
Resumen de: US20260319019A1
0000 The present disclosure relates to a battery diagnosis apparatus and a method for diagnosing a battery cell in which a micro internal short circuit has occurred during a cell balancing inactive period. A battery diagnosis apparatus according to one embodiment of the present disclosure may include a battery cell determination unit configured to determine, based on voltage variations of a plurality of battery cells, at least some of the plurality of battery cells as diagnostic reference cells for detecting a micro internal short circuit, and a battery cell diagnosis unit configured to diagnose a micro internal short circuit in each of the plurality of battery cells based on voltage variations of the diagnostic reference cells.
Resumen de: US20260317856A1
0000 A method capable of recovering Co and Mn at a high recovery rate from an object containing Ni, Co, and Mn using ammonia and ammonium carbonate is provided. The method for recovering metals of the present disclosure includes an Mn leaching step of performing leaching on an object containing Ni, Co, and Mn using a first ammonia aqueous solution containing ammonia and ammonium carbonate to leach Mn into a first aqueous phase, and a Ni, Co leaching step of performing leaching on the solid residue obtained in the Mn leaching step using a second ammonia aqueous solution containing ammonia and ammonium carbonate to leach Ni and Co into a second aqueous phase. The amount of dissolved oxygen in the first ammonia aqueous solution in the leaching in the Mn leaching step is less than the amount of dissolved oxygen in the second ammonia aqueous solution in the leaching in the Ni, Co leaching step.
Resumen de: EP4822753A1
0001 An electrode for secondary battery includes a substrate layer, an active material layer coated on at least one surface of the substrate layer, and a guide member formed along sides of the active material layer. The guide member includes a polymer cured by exposure to electromagnetic waves.
Resumen de: US20260317198A1
0000 A technique for improving the crystallization rate of Co is provided by the present disclosure. The method for producing a precursor of a positive electrode active material of the present disclosure includes a preparation step of preparing a mixed liquid containing Ni, trivalent Co, and ammonia, a reduction step of mixing the mixed liquid with a reducing agent to reduce the trivalent Co in the mixed liquid to divalent Co, and a crystallization step of lowering the ammonia concentration of the mixed liquid after the reduction step to precipitate a NiCo-containing compound. The mixed liquid before the crystallization step contains an anion that forms a salt with Ni and divalent Co.
Resumen de: US20260319002A1
A computer system and computer-implemented method are disclosed for determining a relaxation state of a battery cell online. The computer-implemented method includes acquiring, by processing circuitry of a computer system, a first derivative of a terminal voltage of the battery cell between a first time and a second time later than the first time; acquiring, by the processing circuitry, a second derivative of the terminal voltage of the battery cell between the second time and a third time later than the second time; and determining, by the processing circuitry, a relaxation state of the battery cell online by comparing the first derivative and the second derivative to at least one threshold; or retrieving a previously determined relaxation state of the battery cell.
Resumen de: WO2026214447A1
The present application provides a secondary battery and a preparation method therefor, and an electric device. The secondary battery comprises a positive electrode sheet and a negative electrode sheet, wherein the positive electrode sheet and/or the negative electrode sheet comprise(s) a protective film layer; the protective film layer comprises a gel electrolyte; and the gel electrolyte comprises a polymer framework, and a lithium salt and a solvent incorporated into the polymer framework. The risk of thermal runaway in the secondary battery is low.
Resumen de: US20260321848A1
0000 A battery energy storage system (BESS) includes at least one BESS enclosure having a main structure, and a rear panel. The main structure includes a base weldment having a front edge, and a rear edge, a pair of opposing side weldments, and a top side weldment having a front edge and a rear edge. A plurality of crossbeams, a plurality of inner panels, and a battery rack are arranged within the main structure. The rear panel includes a bottom edge arranged adjacent to the rear edge of the base weldment, and a top edge of the rear panel arranged adjacent to the rear edge of the top side weldment. At least one of the plurality of crossbeams includes a closed, hollow cross-section. At least one of the plurality of inner panels includes a steel inner insulation panel.
Resumen de: US20260321643A1
A secondary battery may include a positive electrode and a negative electrode facing each other with a separator interposed therebetween. The negative electrode may include a current collector, a composite layer on the current collector containing graphite particles, and an adhesive layer between the composite layer and the separator. The composite layer may include a surface layer in contact with the adhesive layer and a main layer between the surface layer and the current collector. In an XRD profile of the main layer, a degree of orientation, defined as a ratio of an intensity of a (110) plane of a graphite crystal to an intensity of a (002) plane, may be 0.03 or greater. Graphite particles in the surface layer may have two particle size peaks, and particles in the main layer may have only a first particle size peak.
Resumen de: US20260321621A1
Described is an improved process for the formation of lithium-ion metal oxide cathode active material. The process comprises: i) adding water to a reactor at a temperature of no more than 100° C.; ii) adding at least one elemental metal to a reactor, wherein the elemental metal comprises a metal selected from the group consisting of Ni, Mn, Co and Al; iii) adding a first aliquot of nitric acid to the reactor at a rate sufficient to maintain a temperature of no more than 100° C. to form a metal nitrate solution; iv) stirring the metal nitrate solution for at least a sufficient amount of time to reach a pH of ≤7 until the nitric acid added is in a molar ratio relative to moles of said element metal of at least 1:2.5 to no more than 1:5; v) adding Li+ to said reactor as a lithium salt until Li+ is in a molar ratio relative to moles of the element metal of at least of 0.9-1.1 or 0.4-0.6 to form a mixture comprising a solid and water in the reactor; vi) drying the mixture to remove the water from the solid; and vii) calcining the solid to form lithium-ion metal oxide cathode.
Resumen de: WO2026214217A1
A battery cell and a manufacturing method therefor, a secondary battery, and an electric device, relating to the technical field of secondary batteries. By controlling the roughness of a second coating to be greater than the roughness of a first coating, a capillary effect formed between the second coating and a negative electrode sheet is stronger than a capillary effect formed between the first coating and a positive electrode sheet, and an electrolyte wicking channel formed between the second coating and the negative electrode sheet is superior to an electrolyte wicking channel formed between the first coating and the positive electrode sheet, so that an electrolyte absorption rate on a negative electrode side is greater than an electrolyte absorption rate on a positive electrode side, thereby matching the requirements of the negative electrode sheet and the positive electrode sheet for an electrolyte, rapidly supplementing the electrolyte on the negative electrode side, fully utilizing the electrolyte, and improving the cycle performance of the secondary battery.
Resumen de: WO2026216049A1
This controller acquires a movement route from a charging spot through which a mobile body passes to a destination of the mobile body, and, if a movement load required for the mobile body to travel along the movement route is equal to or less than a predetermined threshold value, sets an upper limit of a charging control value at the charging spot to be higher than an upper limit set when the movement load is greater than the predetermined threshold value, and limits the charging control value on the basis of the upper limit.
Resumen de: WO2026213864A1
The present application relates to the technical field of batteries, and provides a battery cell, a battery device, and an electrical device. The battery cell provided in the present application comprises a positive electrode sheet. The positive electrode sheet comprises a positive electrode current collector, a positive electrode film layer disposed on at least one side of the positive electrode current collector, and a primer coating layer disposed between the positive electrode current collector and the positive electrode film layer on the at least one side. The particles in the positive electrode film layer have a volume-distribution particle size Dv90 of greater than or equal to 18 μm, and the particles in the primer coating layer have a volume-distribution particle size Dv99 of less than or equal to 16 μm. On the basis of the total mass of the particles in the primer coating layer, the mass percentage of particles having a roundness greater than or equal to 0.8 in the primer coating layer is greater than or equal to 70%. The battery cell provided in the present application has excellent energy density, safety performance, and kinetic performance.
Resumen de: DE102025114624A1
Die Erfindung betrifft ein Verfahren zur Fertigung einer Elektrode (E) für eine Lithium-Ionen-Batteriezelle, mit einem Kalandrierprozess, bei dem ein auf einer Stromableiterfolie (1) befindliches Elektrodenmaterial (2) verdichtet wird. Erfindungsgemäß ist zur Einstellung einer Elektrodenmaterial-Porosität dem Elektrodenmaterial (2) ein gasbildender Zusatzstoff (6) beigemischt. Der gasbildende Zusatzstoff (6) wird nach dem Kalandrierprozess thermisch, chemisch und/oder mechanisch aktiviert, wodurch im Elektrodenmaterial (2) Gas erzeugt wird, das sich unter Bildung von Elektrodenmaterial- Porosität aus dem Elektrodenmaterial (2) verflüchtigt.
Resumen de: US20260321881A1
A battery module includes a housing, a plurality of battery cells accommodated in the housing and each including a vent, a plurality of bus bars connecting neighboring battery cells of the plurality of battery cells, a cover including an inner cover surface facing the plurality of battery cells, and an outer cover surface opposite the inner cover surface, one or more cover holes passing through the inner cover surface and the outer cover surface and facing the vents, and a cover film facing the one or more cover holes and configured to open and close the one or more cover holes.
Resumen de: US20260321867A1
A secondary battery includes a cylindrical can having an open end and a closed end, an electrode assembly accommodated in the can, and a cap assembly. The cap assembly includes an upper cap closing the open end of the can, a lower cap spaced apart from the upper cap and facing the electrode assembly, a vent plate disposed between the upper cap and the lower cap, with a notch being formed in the vent plate, and an insulating gasket inserted between the vent plate and the can. An diameter of the lower cap is less than the diameter of the notch.
Resumen de: WO2026215401A1
Protective part for the battery housing of electric vehicles comprising an impact protecting element comprising a fiber reinforced thermoplastic core comprising fibers in a first matrix, and a first and a second skin, whereby the first and second skins comprise continuous filaments in second matrix, and whereby the skins cover opposite surfaces of the core thereby forming a sandwich, and further comprising at least one flame protecting element. The flame protecting element comprises at least one lower and one upper fibrous inlay comprising inorganic fibrous material and a fibrous inlay core comprising a mechanically bonded nonwoven layer of carbon fibers placed between the upper and lower fibrous inlay, and whereby the core inlay layer and the upper and lower inlay layers are embedded within the same thermoset matrix material, such that the flame protecting element forms a single plate material.
Resumen de: WO2026215001A1
The invention relates to an electrical energy storage module (1) configured to accommodate a plurality of storage elements (10) between walls of the module forming an enclosure (7) comprising an interior wall, the module being intended for application to batteries for vehicles or stationary installations and comprising: - a layer of composite material containing reinforcing fibres (2); - an aluminium layer (3); and - a layer or coat of intumescent paint (4) configured to form a thermally insulating layer when exposed to heat, the layer or coat of paint being oriented towards and forming the interior wall of the enclosure of the module.
Resumen de: US20260317176A1
0000 A method for forming hard carbon from an asphaltene precursor derived from bitumen. The asphaltene precursor is oxidized in an oxygen-rich atmosphere at one or more temperatures to produce an oxidized asphaltene. The oxidized asphaltene is then carbonised at an elevated temperature under an inert atmosphere to produce hard carbon having an interlayer spacing suitable for sodium-ion intercalation. The asphaltene precursor may be treated with an oxidizing agent prior to oxidizing at an elevated temperature. The method may further comprise milling the asphaltene precursor or the oxidized asphaltene to a powder after acid treatment, after oxidization at elevated temperature or after carbonization. The resulting hard carbon is suitable for use as an anode material in sodium-ion batteries.
Resumen de: US20260321606A1
A negative electrode slurry includes a negative electrode active material including a lithium powder, a conductive material, a binder, and a metal powder. The metal powder includes silver powder.
Resumen de: WO2026216839A1
A battery system assembly is disclosed. The battery system assembly may comprise a case, a battery stack, and a pressing unit. The battery stack may include a plurality of battery cells stacked in a stacking direction, and a pair of end plates disposed at both ends thereof in the stacking direction. The battery stack may be supported by the case. The pressing unit may be formed to press, toward the case, a portion of the battery stack, located between the pair of end plates in the stacking direction.
Nº publicación: WO2026216716A1 15/10/2026
Solicitante:
SAMSUNG SDI CO LTD [KR]
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Resumen de: WO2026216716A1
The present invention relates to: a slurry for an all-solid-state battery; a positive electrode for an all-solid-state battery, the positive electrode being manufactured using the slurry; and an all-solid-state battery. More specifically, the slurry for an all-solid-state battery comprises a sulfide-based solid electrolyte, a binder, a non-aqueous solvent, and an additive, wherein the additive may include an aluminum halide compound.
BOPI
Sede Electrónica
