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847
resultados
Última actualización
15/07/2026 [08:03:00]
Resultados 375 a 400 de 847
Resumen de: WO2026143889A1
An electrolyte adapted to a lithium manganese iron phosphate positive electrode material and a battery. The electrolyte comprises a non-aqueous solvent, a lithium salt, and a negative electrode film-forming additive. The mass proportion a of the total mass of dimethyl carbonate and carboxylate ester in the non-aqueous solvent, the molar proportion b of lithium bis(fluorosulfonyl)imide in the lithium salt, the molar proportion y of manganese in lithium manganese iron phosphate, and the compacted density c of a positive electrode sheet satisfy relational expression (I), wherein 0.01≤a≤1, 0.01≤b≤1, 1.8≤c≤2.7, and the unit of c is g/cm3. The molecular formula of lithium manganese iron phosphate is LixMnyFe1-yPO4, wherein 0.95≤x≤1.05 and 0.3≤y≤0.8. The mass proportion d of the negative electrode film-forming additive in the electrolyte and y satisfy the relational expression: 3≤(100×d)/y≤20 and 0.001≤d≤0.2.
Resumen de: WO2026144651A1
An electrolyte, a secondary battery, and an electronic device. The electrolyte comprises ethyl 2,2-difluoroacetate, 1,2,3-tris(2-cyanoethoxy)propane, and 1,3-propane sultone. Based on 100 parts by mass of the electrolyte, ethyl 2,2-difluoroacetate accounts for 1.5 to 6 parts by mass, 1,2,3-tris(2-cyanoethoxy)propane accounts for 0.5 to 4 parts by mass, and 1,3-propane sultone accounts for 1 to 5.5 parts by mass. The overcurrent and overtemperature safety of secondary batteries are improved.
Resumen de: WO2026143930A1
The present application provides a battery apparatus and an electrical apparatus. The battery apparatus comprises a box body, a constant pressure mechanism, a plurality of solid-state batteries, and a plurality of expansion members. The plurality of solid-state batteries are arranged in a first direction, and the plurality of solid-state batteries are accommodated in the box body. The plurality of expansion members are arranged in the first direction, and at least one solid-state battery is provided between two adjacent expansion members. An expansion cavity is provided in each expansion member, and the expansion cavity is used for accommodating a fluid medium. The constant pressure mechanism is connected to the expansion members. The constant pressure mechanism is configured to discharge the fluid medium in the expansion cavities when an internal pressure value of the expansion cavities reaches a threshold, and to stop discharging the fluid medium in the expansion cavities when the internal pressure value of the expansion cavities is lower than the threshold. In the battery apparatus, the risk of damage to a solid-state battery caused by an excessive compression force of an expansion member compressing the solid-state battery is reduced, thereby improving the reliability of the battery apparatus.
Resumen de: WO2026143832A1
The present application relates to the technical field of batteries, and in particular to a battery electrode sheet and a lithium-ion battery. The battery electrode sheet comprises a negative electrode sheet and a positive electrode sheet, a slot is provided on the negative electrode sheet, and a negative tab is provided in the slot. The positive electrode sheet and the negative electrode sheet are stacked; two sides of the positive electrode sheet are coated with positive electrode active layers, wherein the positive electrode active layer on the side close to the negative electrode sheet is provided with a groove; the groove directly faces the slot, and is internally coated with an electrolyte-retaining coating; and the electrolyte-retaining coating is configured to absorb and accumulate an electrolyte.
Resumen de: US20260196567A1
0000 A high-safety lithium secondary battery electrolyte for high-speed charging, according to the present invention, comprises a linear carbonate solvent and a linear sulfate solvent including fluorine at the end thereof, and thus exhibits non-flammability and is suitable for high-speed charging.
Resumen de: WO2026144201A1
Provided are a lithium-ion battery and a preparation method therefor. The lithium-ion battery comprises a positive electrode sheet, an electrolyte, and a negative electrode sheet. The positive electrode sheet comprises a positive electrode active layer, the positive electrode active layer contains a positive electrode active material, and the D50 particle size of the positive electrode active material is 4-10 μm; the negative electrode sheet comprises a negative electrode active layer, the negative electrode active layer contains a negative electrode active material, and the D50 particle size of the negative electrode active material is 10-20 μm; and the conductivity of the electrolyte is 10.0-12.0 mS/cm.
Resumen de: WO2026144839A1
Disclosed are a secondary battery and an electric device. By controlling the particle size Dv99 of a silicon-carbon material, the mass fraction of a silicon element in a negative electrode active material, as well as fluoroethylene carbonate, an cyclic carbonate additive, and a sulfur-containing additive, the secondary battery meets the following relational expression: 7.70≤(x·a)/(y+z)·b≤62.86. The high-temperature cycle performance, high-temperature storage performance and gas production performance of the secondary battery are significantly improved.
Resumen de: WO2026144383A1
A secondary battery and an electronic device. The second battery comprises a first tab and a first electrode sheet. The first electrode sheet comprises a first current collector and a first active material layer. In the thickness direction of the first electrode sheet, the first active material layer is stacked on the surface of the first current collector. The first current collector comprises a first uncoated area. The first tab is electrically connected to the first uncoated area. The secondary battery further comprises a first adhesive layer. In the thickness direction of the first electrode sheet, the first adhesive layer is bonded between the first tab and the first uncoated area. The first adhesive layer is configured so that adhesive strength is reduced when the temperature rises to a first threshold, enabling the first tab to be at least partially separated from the first uncoated area. The occurrence of short circuits can be reduced, and thermal runaway in the secondary battery can be reduced, thereby improving the safety performance of the secondary battery.
Resumen de: WO2026143898A1
Provided in the present invention are a lithium iron manganese phosphate material, a preparation method therefor, a positive electrode material, and a lithium ion battery. The lithium iron manganese phosphate material comprises a lithium iron manganese phosphate material core and a carbon coating layer covering the surface of the lithium iron manganese phosphate material core, wherein the chemical general formula of the lithium iron manganese phosphate material core is LiFexMnyM1-x-yPO4, wherein 0.80≤x<1, 0
Resumen de: WO2026145078A1
The present application provides a battery module and a battery pack. In the battery module, a battery cell group comprises a plurality of stacked battery cells. The battery cell group has a top surface and a bottom surface parallel to the top surface and opposite thereto, as well as two opposite side surfaces. A pole of each battery cell is located on a side surface. Two end plates are respectively clamped on two sides of the battery cell group. A conductive block is mounted on the surface of each end plate facing away from the battery cells. A connecting bar assembly is electrically connected to the poles of the plurality of battery cells on the side surface, and a portion of the connecting bar assembly extends beyond each end plate to be electrically connected to the conductive block.
Resumen de: WO2026143796A1
The present invention relates to a composite current collector, a preparation method therefor and a use thereof. The composite current collector comprises a polymer-based film layer and a metal layer provided on at least one surface of the polymer-based film layer; the polymer-based film layer comprises a metal embedded layer in contact with the metal layer; a strength factor A of the composite current collector is formula (1); and formula (2). In the present invention, a strength factor of the composite current collector is controlled within a certain range, so that the tensile strength of the composite current collector can be significantly improved relative to the tensile strength of the base film. In addition, the composite current collector of the present invention also has good peel strength and low sheet resistance.
Resumen de: WO2026143903A1
Disclosed in the present application are a support pushing system and method, the support pushing system comprising: a pushing device; an opening and closure device arranged on one side of the pushing device; and a movement device connected to the opening and closure device or a wound core.
Resumen de: WO2026144467A1
Disclosed are a secondary battery and an electric device. The secondary battery comprises a housing and an electrode assembly accommodated in the housing. The electrode assembly comprises a first electrode sheet and a second electrode sheet having opposite polarities, and a separator used for separating the first electrode sheet from the second electrode sheet. The first electrode sheet comprises a first current collector and a first active material layer; the first current collector comprises a first folding portion, a connecting portion, and a second folding portion which are connected in sequence; the first folding portion comprises first straight sections and first bent sections which are alternately connected; and the second folding portion comprises second straight sections and second bent sections which are alternately connected. In a first direction, each second straight section connected to the connecting portion comprises a first portion beyond the corresponding first straight section, and an empty foil region electrically connected to the housing is provided at each first portion. In a second direction, the second electrode sheet is arranged between any two adjacent straight sections, and the first active material layer is arranged between the first current collector and the second electrode sheet. The battery structure is conducive to reducing the internal resistance of the secondary battery, thereby improving the charge/discharge rate and the energy density of th
Resumen de: US20260193006A1
0000 A blister package for an electrochemical cell having a water-soluble coating on at least one terminal. The package comprises a first plastic panel and a second plastic panel. The second plastic panel is secured to the first plastic panel such that a cavity is defined having a closed planar side opposite the open side and parallel with at least one of the first planar portion or the second planar portion. The cavity may include a substantially cylindrical sidewall that extends between the closed planar side and one of the first planar portion or the second planar portion surrounding the cavity. The cavity includes a standoff post having a distal end extending into the cavity and spaced away from the sidewall to define an unoccupied volume surrounding the standoff post and spaced apart from the other of the first plastic panel or the second plastic panel to define a battery-placement cavity.
Resumen de: WO2026144446A1
Embodiments of the present application provide a battery cell, a battery apparatus, an electrical apparatus, and an energy storage apparatus. The battery cell comprises a housing, a first electrode lead-out component, a first electrode assembly, and a second electrode assembly. The housing comprises a first wall. The first electrode lead-out component is disposed on the first wall. The first electrode assembly comprises a first main body portion and a first tab, and the first tab is disposed at an end of the first main body portion adjacent to the first wall. The second electrode assembly comprises a second main body portion and a second tab, and the second tab is disposed at an end of the second main body portion adjacent to the first wall. The first main body portion and the second main body portion are stacked in a first direction. On a projection plane perpendicular to a thickness direction of the first wall, an orthographic projection of the first tab and an orthographic projection of the second tab at least partially overlap, and the first tab and the second tab are connected to the first electrode lead-out component by means of a first welding mark. The technical solution provided in the present application can improve the assembly efficiency of battery cells.
Resumen de: WO2026144306A1
A battery trigger device, comprising an input apparatus (110) and a message generation apparatus (120). The message generation apparatus (120) comprises a wireless communication module (121) and a control module (122), wherein the wireless communication module (121) is in wireless communication connection with the input apparatus (110), and is used for acquiring target data sent by the input apparatus (110); and the control module (122) is connected to the wireless communication module (121), is provided with a wired communication interface for connecting to a management device (130) of a target battery apparatus, and is used for generating a target signal on the basis of the target data and outputting the target signal to the management device (130), the target signal being used for triggering the target battery apparatus to output electric energy.
Resumen de: WO2026144237A1
The present application relates to the technical field of batteries. Provided are a mounting bracket, a battery pack and an electric device. The mounting bracket comprises: a first member; and a second member, which has a first surface and a second surface that are arranged opposite each other, wherein the first surface is configured to mount a first BMS board, and the second surface is connected to the first member to define a mounting space, a wire insertion opening and a heat dissipation opening, the wire insertion opening and the heat dissipation opening communicating the mounting space with the outside, and the mounting space being configured to mount a second BMS board.
Resumen de: WO2026144236A1
A winding device and a winding machine. The winding device comprises: a base; a support seat which is mounted on the base and can pass through a main plate; and a winding needle assembly which is rotatably connected to the support seat. By enabling the support seat to pass through the main plate so as to facilitate adjustment of the perpendicularity between the winding needle assembly and the main plate, the assembly difficulty of the winding device can be simplified while reducing the machining accuracy requirement for the main plate.
Resumen de: WO2026143902A1
The present application discloses a measurement device, which is used for measuring the length of insulating paper exposed out of an end portion of a roll core, and comprises: a main body and at least one measurement structure provided on the main body, wherein the measurement structure comprises a positioning member and a length measurement member; the positioning member is configured to extend into a central hole of the roll core; and the length measurement member is used for measuring the length of the insulating paper exposed out of the roll core.
Resumen de: WO2026144544A1
In order to solve the problem of solid-state electrolytes of existing batteries being prone to side reactions at interfaces, increasing interface impedance, and affecting charge and discharge performance of the batteries, provided are a solid-state electrolyte and a preparation method therefor, a battery, and an electric device. The solid-state electrolyte comprises an inorganic solid-state electrolyte layer and a composite electrolyte layer. The composite electrolyte layer comprises a polymer electrolyte base film and a filler, the filler being distributed in the polymer electrolyte base film, and the filler comprising one or more of an oxide solid-state electrolyte, a sulfide solid-state electrolyte, and a halide solid-state electrolyte; and the inorganic solid-state electrolyte layer comprises one or more of an oxide solid-state electrolyte, a sulfide solid-state electrolyte, and a halide solid-state electrolyte.
Resumen de: WO2026143988A1
The present application belongs to the technical field of batteries, and relates to a positive electrode sheet, a battery comprising same, and an electric device. The positive electrode sheet of the present application comprises a positive electrode current collector and a positive electrode active material layer, which is arranged on at least one surface of the positive electrode current collector, wherein the positive electrode active material layer comprises a positive electrode active material, with the positive electrode active material comprising lithium manganese iron phosphate and a ternary positive electrode material. The positive electrode sheet satisfies: 0.09≤a/b≤5.1, wherein a is the mass percentage content of Ni in the positive electrode active material layer, with the unit thereof being %; and b is the longitudinal wettability of the positive electrode sheet, with the unit thereof being %. In the present application, by compounding LMFP with a ternary positive electrode material and reasonably controlling the content of Ni in the positive electrode active material layer and the longitudinal wettability of the positive electrode sheet, after the positive electrode sheet is applied to a battery, the charging time of the battery in a high-voltage stage can be significantly shortened; moreover, the lithium-ion transport rate and the electron transport rate of the positive electrode sheet in the longitudinal direction are balanced, thereby effectively improving
Resumen de: US20260196464A1
0000 The present disclosure provides a process for preparing an electrode, the process comprising: (a) mixing an active material, a first conductive carbon, and a first binder to obtain a first mixture; (b) high shear mixing the first mixture with a second binder to obtain a second mixture, wherein the second binder is different from the first binder; (c) cooling the second mixture and blending with a second conductive carbon to obtain a third mixture; and (d) jet milling the third mixture and processing it to obtain the electrode. The present disclosure further provides an electrode obtained by the process as disclosed herein, and an electrochemical cell comprising at least one of the electrodes obtained by the process as disclosed herein.
Resumen de: US20260196579A1
A battery pack includes at least one energy storage module, a housing adapted to receive at least one energy storage module, a side cover adapted to close the housing, an electronic cover adapted to close the housing on the side opposite to the side cover, a connector positioned at the electronic cover, and a connection element connecting the connector with the at least one energy storage module.
Resumen de: US20260194337A1
A measuring jig for a battery module that includes a support for disposing across the battery module, a plurality of fastening parts for fastening with a measuring instrument, and fixing plates for connecting to the support and to support the measuring jig on the battery module.
Nº publicación: US20260196480A1 09/07/2026
Solicitante:
IMAM ABDULRAHMAN BIN FAISAL UNIV [SA]
IMAM ABDULRAHMAN BIN FAISAL UNIVERSITY
Resumen de: US20260196480A1
0000 A nanocomposite electrode including a substrate, a binding compound, a conductive additive, and NiO/Fe<2>VO<4 >nanoparticles. The NiO/Fe<2>VO<4 >nanoparticles have a substantially spherical shape. A mixture of the binding compound, the conductive additive and the NiO/Fe<2>VO<4 >nanoparticles, is at least partially coated on a first surface of the substrate. A method of making the NiO/Fe<2>VO<4 >nanoparticles is described.
BOPI
Sede Electrónica
