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1535
resultados
Última actualización
02/10/2025 [07:24:00]
Resultados 1250 a 1275 de 1535
Resumen de: WO2025192285A1
This portable terminal device comprises: an acquisition unit that acquires a voltage and a temperature of a battery; and a deterioration calculation unit that calculates a deterioration degree of the battery on the basis of the voltage and temperature of the battery and a time parameter related to deterioration of the battery.
Resumen de: WO2025192494A1
The purpose of the present invention is to provide: a method for manufacturing a positive electrode active material, which has characteristics equivalent to those of a new positive electrode active material, from a recovered positive electrode active material; and a method for manufacturing a lithium ion secondary battery using the regenerated positive electrode active material. In order to achieve the purpose, a method for manufacturing a positive electrode active material for a lithium ion secondary battery according to one embodiment of the present invention, with which a new positive electrode active material is manufactured from a positive electrode active material that is recovered from a lithium ion secondary battery, includes: a pulverization step S002 for pulverizing the recovered positive electrode active material so as to obtain a pulverized powder 1; an aggregation step S003 for obtaining an aggregated powder 2 from the pulverized powder 1 of the positive electrode active material; a lithium replenishment material mixing step S004 for mixing a lithium replenishment material 3, which is composed of a lithium compound, with the aggregated powder so as to obtain a mixed powder 4; and a firing step S005 for firing the mixed powder 4.
Resumen de: WO2025192238A1
This housing material for a power storage device has a laminate that includes a base material layer, a barrier layer and a sealant layer, all of which are sequentially laminated. The sealant layer includes: a sea part including a first polyolefin-based resin; and a plurality of island parts that include a second polyolefin-based resin and that are dispersed in the sea part. When viewed from the TD direction of the sealant layer, the aspect ratios of at least some of the plurality of island parts are 0.10-2.50.
Resumen de: WO2025192422A1
Provided is a method for manufacturing a power storage device provided with a plurality of member units laminated in a lamination direction, said method including arranging a member unit continuous body in which a plurality of member units are connected by a connection part, folding the member unit continuous body at the position of the connection part, and removing the connection part after the member unit continuous body is folded.
Resumen de: WO2025192233A1
A secondary battery (10) comprising an electrode body (14), a strip-shaped tape (50) which is adhered to an outer peripheral surface of the electrode body (14) and is for fixing a winding end edge, and a bottomed cylindrical outer can (20) which accommodates the electrode body (14) and has a bottom surface portion (21) and a side surface portion (22), said secondary battery characterised in that the side surface portion (22) includes: a first section (25) that is in contact with the outer peripheral surface of the electrode body (14); and a second section (26) that is opposite at least the tape (50) and has an inner surface that is recessed radially outward in relation to the inner surface of the first section (25).
Resumen de: WO2025189802A1
The present application relates to the technical field of new energy batteries. Disclosed are a battery cell and an electrical device. The battery cell comprises: a casing, which is internally provided with an accommodating cavity; and a cell assembly arranged in the accommodating cavity, wherein the cell assembly comprises a first inner core and at least two second inner cores, the first inner core being arranged between the at least two second inner cores, and the hardness of the second inner cores being greater than that of the first inner core. The present application can reduce the wrinkling degree of an electrode sheet, reduce the occurrence of lithium plating and purple spots, and ensure the consistency, long-term reliability and safety performance of batteries.
Resumen de: WO2025189702A1
A battery cell (20), a battery (100) and an electrical device. The battery cell comprises a casing (21), an electrode assembly (22), a fixing member (23), an electrode terminal (24) and a first insulating member (25). The fixing member (23) comprises a main body region (2311) and a thinned region (2312), wherein the thinned region (2312) is connected to the end of the main body region (2311) that faces the electrode terminal (24), and in the thickness direction of a wall portion (211) of the casing (21), the surface of the thinned region (2312) that faces the wall portion (211) is farther away from the wall portion (211) than the surface of the main body region (2311) that faces the wall portion (211), so as to form a thinned groove (2314) on the side of the fixing member (23) that faces the wall portion (211); and the electrode terminal (24) is partially located between the thinned region (2312) and the wall portion (211), and the first insulating member (25) is partially accommodated in the thinned groove (2314), so that the size of the fixing member (23) and the size of the electrode terminal (24) in the thickness direction of the wall portion (211) are optimized, thereby facilitating reduction of the space occupied by the battery cell (20).
Resumen de: WO2025189710A1
A lithium-ion secondary battery, a positive electrode sheet, and an electric device. The lithium-ion secondary battery comprises a positive electrode sheet; the positive electrode sheet comprises a lithium oxide positive electrode active material and a potassium salt additive; and a potassium salt decomposes to release potassium ions under a voltage of 3.1 V to 4.2 V. The potassium salt can activate dead lithium in a lithium oxide, increase the capacity per gram of the positive electrode active material, and improve the cycle performance of the lithium oxide.
Resumen de: WO2025189706A1
Provided are a battery, a positive electrode sheet, and an electric device. The battery comprises the positive electrode sheet, the positive electrode sheet comprises a positive electrode active material and a potassium salt additive, the positive electrode active material comprises a phosphate positive electrode material, and the potassium salt releases potassium ions within a voltage range of 3.1 V to 4.2 V. The active ion loss of the battery can be reduced, and the cycle performance of the battery can be improved.
Resumen de: WO2025192203A1
Disclosed is a nonaqueous electrolyte secondary battery that comprises: an electrode body which is obtained by winding a belt-shaped first electrode (11) and a belt-shaped second electrode with a separator being interposed therebetween; and a nonaqueous electrolyte. This nonaqueous electrolyte secondary battery is characterized in that: a first electrode current collector exposure part (34) is in contact with only one of both end parts of the first electrode (11) in the width direction; and if a first electrode mixture layer (32) is divided into a first region (32a), which is aligned with the first electrode current collector exposure part (34) in the longitudinal direction of the first electrode (11), and a second region (32b), which is adjacent to the first electrode current collector exposure part (34) and the first region (32a) in the width direction of the first electrode (11), the content of a binder with respect to the mass of the first electrode mixture layer (32) in the first region (32a) is greater than the content of the binder with respect to the mass of the first electrode mixture layer (32) in the second region (32b).
Resumen de: WO2025192512A1
This cured product for a lithium-ion secondary battery has a water-soluble polymer, a divalent cation, and an anion. The water-soluble polymer has a carboxy group. The divalent cation is cross-linked between the water-soluble polymers. The anion contains a sulfur element.
Resumen de: WO2025192508A1
Provided is a non-aqueous electrolyte secondary battery having a reduced risk of a short circuit. A non-aqueous electrolyte secondary battery according to one embodiment of the present disclosure comprises: an electrode body in which a first electrode and a second electrode, which are in the form of strips and have mutually different polarities, are wound along the long-axis direction with a separator interposed therebetween; and an exterior body that accommodates the electrode body. The first electrode has a current collector and a mixture layer formed on both surfaces of the current collector, and a current collector exposed part in which the current collector is exposed is formed on the outward-side surface of the first electrode. The mixture layer has a normal part and a thin part that is thinner than the normal part and has a high density. The thin part is close to both ends of the current collector exposed part in the long-axis direction of the first electrode. A protective tape having an adhesive layer is affixed to the first electrode so as to cover the current collector exposed part. The end of the adhesive layer of the protective tape in the long-axis direction of the first electrode is positioned on the thin part.
Resumen de: WO2025192247A1
The nonaqueous electrolytic solution power storage element according to one aspect of the present invention comprises a positive electrode, a negative electrode, and a nonaqueous electrolyte. This positive electrode contains a positive electrode active substance containing elemental tungsten. The negative electrode contains a carbon material as the negative electrode active substance. The BET specific surface area of the negative electrode active substance is at least 4.4 m2/g. The nonaqueous electrolytic solution contains a carboxylic acid ester and a compound having a reductive decomposition potential of no less than 0.5 V (vs. Li/Li+) but no greater than 2.0 V (vs. Li/Li+).
Resumen de: WO2025189748A1
Provided in the embodiments of the present application is a battery pack. A plurality of battery cells are distributed in an array in a first direction and a second direction; a first connection portion is arranged between two battery cells adjacent to each other in the first direction and is connected to the two battery cells adjacent to each other in the first direction; and a second connection portion is connected to at least one end of the first connection portion in a third direction, wherein the second connection portion intersects the extension direction of the first connection portion, and the second connection portion is connected to the battery cells arranged in the first direction, and/or the second connection portion is connected to the battery cells arranged in the second direction. A cushioning effect between adjacent battery cells can be achieved, and the safety performance of the battery pack is improved; and the plurality of battery cells can be connected into one piece, thereby facilitating enhancing a mode of the battery pack.
Resumen de: WO2025189745A1
A negative electrode material, a preparation method therefor and a battery. The negative electrode material comprises a carbon matrix and an active substance, the carbon matrix containing an oxygen element and a nitrogen element. The mass content of the oxygen element in the negative electrode material is A%, the mass content of the nitrogen element in the negative electrode material is B%, and the powder electrical conductivity of the negative electrode material is P S/cm, A, B and P satisfying the following relationship: (I), M≤5. As the relationship between the nitrogen content, the oxygen content and the powder electrical conductivity satisfies (I), M≤5, while the powder electrical conductivity of the negative electrode material is increased, the initial coulombic efficiency of the negative electrode material is improved.
Resumen de: WO2025189820A1
The present application relates to the technical field of batteries, and discloses a battery cover plate (10), a battery, a battery pack and a vehicle. The battery cover plate (10) comprises a cover plate body (100), a first explosion-proof valve (200) and a second explosion-proof valve (300), the first explosion-proof valve (200) covering an explosion-proof hole (110), and the second explosion-proof valve (300) being located on the outer side of the first explosion-proof valve (200) and at least covering an explosion-proof part of the first explosion-proof valve (200).
Resumen de: WO2025189795A1
A lithium ion secondary battery, a preparation method, and an electric device, relating to the technical field of batteries. The lithium ion secondary battery comprises a positive electrode sheet, a positive electrode active material of the positive electrode sheet comprises lithium nickel oxide, and the active specific surface area of the positive electrode sheet is greater than or equal to 2 cm2/g, and less than or equal to 4 cm2/g. The transmission rate of active ions is improved, the rate capability of a battery is improved, the rapid charging capability of the battery is improved, and the service life of the battery is prolonged.
Resumen de: US2025290223A1
Disclosed is a continuous preparation method of a large-area (100) single-crystal copper foil, a poly-crystal copper foil is connected to a reel-to-reel device, a carbon-based substrate is placed below the copper foil, and the large-area (100) single-crystal copper foil is prepared by applying a stress in a heat treatment process in a reducing/protective atmosphere under an environment with a temperature gradient. According to the invention, the stress is applied to the copper foil for the first time, and strain energy of the copper foil is accurately regulated and controlled, so as to make the strain energy become a main influence factor of grain boundary migration and lattice rotation, so that the strain energy in a growth process of the single-crystal copper foil is controlled to be dominant, and the large-area (100) single-crystal copper foil is controllably prepared through heat treatment in the reducing atmosphere.
Resumen de: US2025289168A1
The present invention relates to a pouch forming apparatus comprising: a die, in which forming grooves are formed with a partition wall therebetween; and a punch member provided with a punch, which is configured to be inserted into each of the forming grooves to press the pouch film to form a pair of accommodation grooves in the pouch film, wherein the forming groove comprises a vertical space disposed above a forming groove bottom part connected to the partition wall and an inclined space connected to the vertical space and formed by providing an inner wall facing the partition wall, the inner wall defining an inclined surface.
Resumen de: US2025289111A1
An interface for a battery pack and an electrical combination. The interface may include a battery-receiving portion configured to receive a battery pack and including a cavity. The cavity is defined by a pair of sidewalls with rails defining a groove between the rails and a lower surface of the cavity. The rails are stepped or angled along a battery insertion axis and are configured to guide the sliding engagement of a battery pack within the battery-receiving portion.
Resumen de: US2025289205A1
A laminate film comprising an intermediate layer I comprising a resin composition (A) containing a thermoplastic resin (a1) and a conductive filler (a2), and both outer layers II comprising a resin composition (B) containing a thermoplastic resin (b1), wherein a thickness (X) of the intermediate layer I is 1 μm or more and 100 μm or less, a ratio of a thickness (Y) of the both outer layers I to the thickness (X) of the intermediate layer I (Y/X) is 1 or more and 5 or less, a thickness variation of the intermediate layer I is less than ±10 μm, and a peeling strength between the intermediate layer I and the both outer layers I is less than 0.1 N/cm.
Resumen de: US2025289730A1
A Group I metal cation excess cathode material comprising a Group I metal cation, at least two different non-Group I metal cations, and at least one counterion is disclosed. It is disclosed that the Group I metal cation excess cathode material delivers high capacity, rate capability, as well as long cycle life upon extensive 1,000 cycles at various current densities.
Resumen de: US2025293384A1
A vehicle battery cell venting system includes a battery pack providing electrical power for propulsion of a vehicle. A battery cell includes a battery can enclosing components including an electrolyte. A battery end cap captures an electrolyte portion. A mandrel has a longitudinal bore, the mandrel extending through the electrolyte and disposed on a battery can center axis. An electrolyte generated gas may pass through the longitudinal bore. A shaft is slidably disposed within the longitudinal bore, with a shaft proximal fixed to a vent cap portion of the battery end cap. A circular scoring created in the battery end cap releasably fixes the vent cap portion to the battery end cap and is frangible allowing the vent cap portion to separate from the battery end cap and for the vent cap portion together with the shaft to displace when a battery cell overpressure condition is created.
Resumen de: WO2025192530A1
A power storage device according to one aspect of the present invention comprises: one power storage element or an array body of a plurality of power storage elements; and a restraining member. The power storage element has: an electrode body in which a positive electrode and a negative electrode are stacked with a separator being interposed therebetween, and which has a flat part; a nonaqueous electrolyte solution; and a container which houses the electrode body and the nonaqueous electrolyte solution. The separator has a base material layer, and an inorganic particle layer which is provided on one surface or both surfaces of the base material layer. The air permeability of the inorganic particle layer is 15 (sec/100 cm3) or less. The restraining member has a pair of end plates which are arranged so as to sandwich the one power storage element or the array body in the stacking direction of the positive electrode, the negative electrode, and the separator in the flat part of the electrode body, and the pair of end plates are fixed a specific distance from one another.
Nº publicación: WO2025192445A1 18/09/2025
Solicitante:
TORAY ENG CO LTD [JP]
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Resumen de: WO2025192445A1
Provided are: a manufacturing method for a battery for a secondary battery with which it is possible to reduce manufacturing cost without using a slurry; and a manufacturing device for such a battery for a secondary battery. Specifically, the provided manufacturing method for an electrode for a secondary battery includes: a formation step of forming powder particles 12 in which a binder 17 is coated on a surface of active material particles 16 into a sheet shape on a surface of a current collector 11; and a heating press step of forming an active material layer 14 on the current collector 11 by heating and pressing the powder particles 12 formed into a sheet shape.
BOPI
Sede Electrónica
