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1879
resultados
Última actualización
11/06/2025 [07:53:00]
Resultados 300 a 325 de 1879
Resumen de: WO2025112443A1
A secondary battery, an electric device, a positive electrode active material and a preparation method therefor, and a positive electrode sheet, relating to the technical field of batteries. The secondary battery comprises a positive electrode sheet; the positive electrode sheet comprises lithium phosphate-containing positive electrode active particles, each lithium phosphate-containing positive electrode active particle comprises a central part and a surface part, and the surface part is continuously or discontinuously distributed on the surface of the central part; the thickness of the surface part is less than or equal to 10 nm, and the lithium content of the central part is greater than that of the surface part. The secondary battery has high cycle performance.
Resumen de: WO2025112421A1
A tab cutting mechanism and a battery assembly system. The tab cutting mechanism (10) comprises a supporting structure (100), a cutter assembly (200), an electrode assembly positioning assembly (300), and a first driving assembly (400); the cutter assembly (200) comprises a first member (210) and a second member (220), and the first member (210) is mounted on the supporting structure (100); the electrode assembly positioning assembly (300) is mounted on the supporting structure (100) and is configured to support and position a body portion (22) of an electrode assembly (20), and the first member (210) is used for supporting tab portions (21) of the electrode assembly (20); and the first driving assembly (400) is mounted on the supporting structure (100) and connected to the second member (220), and is configured to drive the second member (220) to move, so that the second member (220) matches the first member (210) to cut the tab portions (21). The tab cutting mechanism solves the problems of poor alignment, dislocation, and inconsistent external dimensions of the tab portions (21), so that the tab portions (21) are more regular, facilitating the subsequent addition of a housing (10a) to the electrode assembly (20), improving the yield rate of a battery (1).
Resumen de: WO2025112834A1
Provided are a solid electrolyte membrane, a preparation method therefor and the use thereof, belonging to the technical field of solid-state batteries. In the solid electrolyte membrane, a sulfide solid electrolyte is coated with a coating layer containing an aprotic Lewis acid, so as to target and stabilize Lewis alkaline reaction sites in the sulfide solid electrolyte, thus greatly reducing the probability of the sulfide solid electrolyte reacting with moisture in the air. In addition, the initial ionic conductivity of the prepared solid electrolyte membrane and the rate of change in the ionic conductivity thereof under a specific condition are limited, so that a prepared secondary battery to which the product is applied has an ideal initial discharge capacity and good cycle stability.
Resumen de: WO2025112836A1
A power lead-out structure for a battery pack (1), the battery pack (1), and a vehicle. The power lead-out structure for the battery pack (1) comprises: a fixed platform (11), wherein an accommodating groove (11a) is formed in the fixed platform (11); and a lead-out busbar (121) accommodated in the accommodating groove (11a), wherein the lead-out busbar (121) comprises a positive electrode lead-out busbar and a negative electrode lead-out busbar and is fixed on the fixed platform (11).
Resumen de: WO2025112386A1
A secondary battery and an electronic device. The secondary battery comprises a negative electrode sheet, the negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer located on at least one surface of the negative electrode current collector, and the negative electrode film layer comprises a negative electrode active material, wherein the negative electrode active material comprises a first carbon-based material and a second carbon-based material, the first carbon-based material has a pore structure, and the total pore area S2 of an internal region of the first carbon-based material is larger than the total pore area S1 of an external region of the first carbon-based material; and the second carbon-based material meets ID/IG≤0.140.
Resumen de: WO2025112378A1
A secondary battery and an electric device. The secondary battery comprises a negative electrode sheet. The negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer located on at least one surface of the negative electrode current collector, wherein the negative electrode film layer has a first surface away from the negative electrode current collector and a second surface arranged opposite the first surface; the thickness of the negative electrode film layer is denoted as H; a region within a thickness range from the first surface of the negative electrode film layer to 0.3H is denoted as a first region, which comprises a first negative electrode active material; the first negative electrode active material comprises a first carbon-based material; and the first carbon-based material satisfies the condition that the total pore area S1 of an external region is less than the total pore area S2 of an internal region. The secondary battery has improved dynamic performance, and the volume distribution particle size Dv50 of the first carbon-based material is less than or equal to 15 μm.
Resumen de: WO2025112333A1
The present application relates to a battery cell (20) and a preparation method therefor, a battery (100) and an electric device. The preparation method for the battery cell (20) comprises: determining that the battery cell (20) is in an uncharged state; spraying an insulating material onto at least a partial region of the outer surface of a case (22) of the battery cell (20) by means of an electrostatic spraying method; curing the region, onto which the insulating material is sprayed, of the case (22), so as to obtain the battery cell (20) containing an insulating layer (24); and injecting an electrolyte into the battery cell (20) containing the insulating layer (24). In the preparation method for the battery cell (20) of the present application, by subjecting the battery cell (20) in the uncharged state to insulating spraying, which may be performed by means of an electrostatic spraying method, the utilization rate of a coating of the insulating layer (24) during a production process of the battery (100) can be improved, and the production costs can be reduced.
Resumen de: US2025183282A1
The present invention provides a negative electrode for secondary batteries, the negative electrode being capable of suppressing decrease in the charge/discharge cycle characteristics of a battery.This negative electrode for secondary batteries comprises a negative electrode collector and a negative electrode mixture layer that is formed on the negative electrode collector, while being characterized in that: the negative electrode mixture layer contains a conductive material and a negative electrode active material that contains an Si-containing material; a conductive layer that is covered with a conductive carbon is formed on the surface of the Si-containing material; the coverage of the conductive layer is 30% to 70%; and the conductive material contains carbon nanotubes, each of which has a sulfonic group.
Resumen de: US2025176694A1
A system and method for an intelligent hair dryer with capabilities to transmit information to/from an external device. The hair dryer houses control circuitry, such as a processor and control circuit board to control the hair dryer. The hair dryer may include one or more sensors configured to provide information to the control circuitry to perform various functions. The control circuitry may communicate the information to the external device.
Resumen de: US2025179612A1
A method for removing aluminum includes: a leaching step of leaching battery powder obtained from lithium ion battery waste, the battery powder containing at least aluminum and at least one of nickel and cobalt, with an acid to obtain a leached solution containing at least aluminum ions and at least one of nickel ions and cobalt ions; and a neutralization step including increasing a pH of the leached solution to remove aluminum ions, wherein, when removing the aluminum ions in the neutralization step, an alkaline pH adjusting agent is added to the leached solution to increase the pH, and when the pH reaches 3.0 to 4.0, iron is added in place of the pH adjusting agent to further increase the pH.
Resumen de: US2025178924A1
The present disclosure relates to the synthesis of a cathode active material including a compound represented by Chemical Formula 1, wherein the cathode active material has lithium-concentration gradient particles according to the control of the flow rate of air gas instead of high-concentration oxygen gas, the synthesis temperature and the control of lithium content. By using an excess amount of lithium and a low oxygen partial pressure at a low synthesis temperature, secondary particles having a lithium concentration gradient form, in which the overall structure is stoichiometric but Li is gradually contained in excess from the core to the surface are formed, thereby exhibiting a high capacity while suppressing deterioration due to the lithium-excess Ni-rich layered cathode active material in the shell part to show stable electrochemical performance.
Resumen de: US2025179254A1
The present invention relates to compositions of carbon nanotubes which can be used in solid form, that is to say in the absence of solvent. These compositions comprise at least one polymer and are readily dispersible in formulations for the manufacture of electrodes for batteries and in particular Li-ion batteries in liquid or solid processes. The invention also relates to the process for obtaining these powders, to their use in the manufacture of electrodes for batteries, and also to the batteries comprising them.
Resumen de: US2025183438A1
A battery enclosure and a battery enclosure tub are provided. The battery enclosure tub includes a flange, a wall, and a bottom that is configured to support a battery pack. The flange includes an outer edge, an inner rim defining an opening, and crack mitigation regions formed between the outer edge and the inner rim. The wall extends from the inner rim of the flange, and includes a first portion and a second portion. The first portion is joined to the inner rim of the flange, and the bottom is joined to the second portion of the wall.
Resumen de: US2025183672A1
Described herein are systems for energy storage leveraging various advances in power electronics so that the systems are suitable for stationary and portable power applications. In some embodiments, a system includes a universal bus and universal battery modules connected to the universal bus, in which each module includes battery cells, a power electronics transformer converter (PETC) system, and a direct expansion (DX) based phase-change cooling system to reduce heat produced by the modules to provide a system that is suitable for stationary and portable power applications.
Resumen de: WO2025112284A1
The present application provides a separator, a battery, and an electric device. The separator comprises: a base membrane and a composite coating disposed on at least one side of the base membrane, the composite coating comprising a ceramic layer, the ceramic layer comprising a ceramic material and a polyacrylate layer directly bonded to one side of the ceramic layer, the polyacrylate layer comprising an acrylic acid alkali metal salt polymer, and the ceramic layer being disposed on the side close to the base membrane. The ceramic layer and the polyacrylate layer in the composite coating can form an active ion bridge high-speed channel, so that the separator can improve the transmission rate of active ions, so as to reduce the polarization of a battery during charge and discharge, thus improving the fast charging performance and cycle performance of the battery.
Resumen de: WO2025112326A1
The present invention relates to the technical field of batteries. Provided are a battery shell and a battery. The battery shell comprises a shell body, a welding member, and a reinforcing member. Two ends of the shell body are connected by means of the welding member, and the shell body encloses an accommodating space; the reinforcing member and the welding member are located on the same side of the shell body in a first direction; and the reinforcing member protrudes from the inner sidewall of the shell body towards the interior of the accommodating space in the first direction. In the battery shell of the present invention, the reinforcing member has sufficient strength to support an electrode assembly, thereby preventing the electrode assembly from being scratched. In this way, there is no need to additionally provide a side plate, thereby reducing the manufacturing costs of the battery. Moreover, a gap is formed between the portion of the shell body where the reinforcing member is not provided and the electrode assembly, which allows gas generated by the electrode assembly to be discharged through the gap, thereby reducing the risk of thermal runaway of the battery.
Resumen de: WO2025112352A1
An electrode sheet, a secondary battery, and an electric device. The electrode sheet comprises an active material layer, the active material layer containing a first binder and a second binder, the first binder comprising an alkali metal polymer salt, the bonding strength of the second binder being greater than that of the first binder, the weight percentage of the alkali metal polymer salt in the active material layer being A, the weight percentage of the second binder in the active material layer being B, and A and B satisfying: 0
Resumen de: WO2025112392A1
A secondary battery and an electrical apparatus, which belong to the technical field of batteries. The secondary battery comprises an electrolyte and an electrode piece; the electrode piece comprises an electrode active material layer; the electrode active material layer comprises a binder with alkali metal ions, the amount of the alkali metal ions in the binder is represented by A mol, the amount of the alkali metal ions in the electrolyte is represented by D mol, and the ratio of A to D is 0.01-1.5. Consequently, the cost of the secondary battery is effectively reduced while still allowing the secondary battery to have excellent cycle performance.
Resumen de: WO2025112002A1
Disclosed in the present disclosure are an electrode assembly, a preparation method therefor, a battery cell, a battery, an electrical device and an energy storage device. The electrode assembly comprises: a jellyroll structure, the jellyroll structure being formed by rolling up a laminate comprising a positive electrode sheet and a negative electrode sheet, a separator being interposed between the positive electrode sheet and the negative electrode sheet, the jellyroll structure comprising bending zones, the positive electrode sheet comprising at least one positive electrode bending part located in the bending zones, the negative electrode sheet comprising at least one negative electrode bending part located in the bending zones, and in the rolling axis direction of the jellyroll structure, two ends of the separator exceeding the positive electrode bending part and the negative electrode bending part; and a protective layer attached to the surface of the positive electrode bending part and/or the surface of the negative electrode bending part, at least one end of the protective layer exceeding the separator in the rolling axis direction of the jellyroll structure.
Resumen de: WO2025111861A1
A battery cell, a battery, and an electric device. The battery cell comprises: a casing, a pressure relief mechanism and an electrode assembly, wherein the casing is provided with a first wall and a second wall, which are adjacent to and connected to each other; the pressure relief mechanism is arranged on the first wall; and the electrode assembly is arranged in the casing and is provided with a first portion and a second portion, which are arranged in sequence in a first direction, the first portion and the second portion each comprising a plurality of anode electrode sheet layers and a plurality of cathode electrode sheet layers, the plurality of anode electrode sheet layers and the plurality of cathode electrode sheet layers being alternately stacked one by one in the first direction, the second portion being arranged between the first portion and the second wall, the distance between the cathode electrode sheet layers of the second portion and the first wall being greater than the distance between the cathode electrode sheet layers of the first portion and the first wall, and the first direction being perpendicular to the second wall.
Resumen de: WO2025112043A1
Iron phosphate as well as a preparation method therefor and the use thereof. The method comprises: preparing a precursor solution from an iron source, a phosphate source, an amide substance and a first solvent, filling a mesoporous material with the precursor solution to form a filling body; then adding a second solvent which is immiscible with the first solvent and has a different density, and wrapping the filling body in the second solvent, so as to seal the precursor solution in the cavities or pore channels in the mesoporous material, such that the mesoporous material has blocking and limiting effects, and the precursor solution in the cavity or the pore channel can generate, after reaction, iron phosphate particles smaller than the volume of the cavity; and then calcinating same to remove the mesoporous material, so as to obtain discrete iron phosphate particles having a small particle size.
Resumen de: US2025180485A1
A battery monitoring apparatus may be used for gas analysis of medium to large-sized actual cells by allowing the gases generated during charging and discharging of lithium secondary batteries to be analyzed in-situ through Raman analysis equipment without external exposure of the gas. Meanwhile, the battery monitoring apparatus can identify relationship between a change in cell volume and a battery performance due to gas generation by measuring the change in cell volume and gas pressure according to the gas generated during the cycle, and can also measure the safety and life predictability of the actual cell by identifying the correlation with residual useful life through analysis of electrochemical results and gases generated according to cycle performance.
Resumen de: US2025179609A1
Disclosed herein is a method for reducing a metal oxide in a metal oxide containing precursor. The method comprises providing a reaction mixture comprising the metal oxide containing precursor and an aluminium reductant; heating the reaction mixture in the presence of solid or gaseous aluminium chloride to a temperature at which reactions that result in the metal oxide being reduced are initiated; controlling reaction conditions whereby the reaction mixture is prevented from reaching a temperature at which thermal runaway can occur; and isolating reaction products that include reduced metal oxide.
Resumen de: US2025179844A1
A motor vehicle, in particular electric motor vehicle or hybrid motor vehicle, is equipped with at least one electromotively actuatable motor vehicle lock, and with at least one on-board battery and with an emergency battery for application of an electromotive drive of the motor vehicle lock during normal operation and during emergency operation. According to the invention, the emergency battery is provided with an emergency protection device.
Nº publicación: US2025183453A1 05/06/2025
Solicitante:
GS YUASA INT LTD [JP]
TOYOTA JIDOSHA KK [JP]
GS YUASA INTERNATIONAL LTD,
TOYOTA JIDOSHA KABUSHIKI KAISHA
Resumen de: US2025183453A1
An energy storage apparatus includes: an energy storage unit including an energy storage device and an outer case accommodating the energy storage device; and a control unit including a control device that is connected to a main current path of the energy storage device and controls the energy storage device. The control unit is removably attached to the outer case in a state of being in contact with the outer case.
BOPI
Sede Electrónica
