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1724
resultados
Última actualización
23/03/2026 [07:26:00]
Resultados 375 a 400 de 1724
Resumen de: WO2026058487A1
The present invention addresses the problem of providing a heat insulation sheet which has higher heat insulation properties and for which strength is ensured. The foregoing problem is solved by this heat insulation sheet containing inorganic fibers, xerogel, and an organic component. The content of the inorganic fibers is 5-90 mass %, the content of the xerogel is 5-80 mass %, and the content of the organic component is 3-20 mass %. The degree of hydrophobicity measured by a gas adsorption method is 0.25 or less.
Resumen de: WO2026057084A1
A coating-transfer separator, and a preparation method therefor and a use thereof. The coating-transfer separator comprises a substrate and a composite coating provided on at least one side of the substrate; the composite coating comprises a first coating and a second coating provided on the surface of the first coating; and when pressed, the composite coating can be transferred to a surface of a positive electrode sheet. The dry bonding force between the first coating and the substrate is F1, and the dry bonding force between the second coating and the positive electrode sheet is F2, wherein F1 and F2 satisfy the relation: F2/F1≥1.0. The coating-transfer separator has good bonding force; in addition, the second oil-based coating comprised therein can be completely transferred to the surface of the positive electrode sheet, and can be completely retained on the surface of the positive electrode sheet when wetted by an electrolyte, thereby mitigating the risk of short circuits of secondary batteries.
Resumen de: WO2026056835A1
A casing (1), a battery cell (2) being accommodated in the casing (1), and the casing (1) comprising a side wall and a bottom cover; the connection point between the side wall and the bottom cover is a connecting portion (4); after the battery cell (2) is accommodated in the casing (1), a bottom corner portion of the battery cell (2) and an inner side surface of the connecting portion (4) do not interfere with one another; the connection point between the side wall and the bottom cover is thinned to form the connecting portion (4); the connecting portion (4) comprises a longitudinal section (42) in a first direction, a transverse section (41) in a second direction, and an arc-shaped section (43) for connecting the longitudinal section (42) and the transverse section (41), the longitudinal section (42) connecting the arc-shaped section (43) and the side wall, and the transverse section (41) connecting the arc-shaped section (43) and the bottom cover; material reduction treatment is performed at the position of an inner rounded corner of the casing (1), so that interference with the battery cell (2) in the casing (1) can be avoided, and the safety of the battery is improved; moreover, the material reduction treatment method reduces the weight of the casing (1) while satisfying molding processing on the casing (1), and improves the energy density of the battery.
Resumen de: WO2026056797A1
The present invention belongs to the field of batteries, and specifically relates to a method for restoring lithium-ion battery capacity, comprising step a and step b; step a: over-discharging a lithium-ion battery to be restored, discharging gas from an inner cavity of the lithium-ion battery, and injecting an electrolyte into the inner cavity; and step b: using a lithium replenishment electrode to replenish lithium in the electrodes of the lithium-ion battery to be restored. In the present invention, a lithium-ion battery prior to scrapping treatment is restored and regenerated, combining over-discharging and lithium replenishment without damaging the electrode assembly; the charge and discharge cycle performance of waste lithium-ion batteries is prolonged and the pressure of waste lithium-ion batteries on the environment is reduced, and battery use costs are lowered.
Resumen de: WO2026056216A1
The present application belongs to the technical field of batteries, and provides a positive electrode active material, a positive electrode slurry, a positive electrode sheet, and a battery. The positive electrode active material comprises lithium manganese iron phosphate and lithium-rich lithium ferrite; the mass ratio of the lithium-rich lithium ferrite added to the positive electrode active material is 0.5%-5%; the particle size D50 of the lithium manganese iron phosphate is d1, and the particle size D50 of the lithium-rich lithium ferrite is d2, 0.05≤d1/d2≤0.32.
Resumen de: WO2026057095A1
Provided in the present application are a positive electrode material and a battery. The mass content of free nitrate radicals of the positive electrode material is Q ppm, where 10≤Q≤100. In a particle size-quantity distribution diagram of the positive electrode material, the positive electrode material has a first characteristic peak and a second characteristic peak, wherein the first characteristic peak is in the range of 0.1-1 μm and excludes 1 μm, and the second characteristic peak is in the range of 1-4 μm. The positive electrode material of the present application can have excellent high voltage resistance, structural stability and cycle stability.
Resumen de: WO2026056730A1
A battery cell insulating film, comprising an insulating film body formed by a bottom surface covering region, end surface covering regions, first side surface covering regions, and second side surface covering regions, wherein both sides of the bottom surface covering region are connected to the first side surface covering regions, both sides of each end surface covering region are connected to the second side surface covering regions, and the end surface covering regions are connected to both sides of the bottom surface covering region. The total area covered by the first side surface covering regions and the second side surface covering regions after folding is S1, and the overlapping area between the first side surface covering regions and the second side surface covering regions after folding is S, satisfying: 5 mm2≤S≤(0.6×S1) mm2. This ensures that the insulating film body provides sufficient overlapping area on the side surfaces of an electrode assembly, such that the side surfaces of the electrode assembly after being covered with the insulating film body have relatively good cushioning performance, thereby reducing particle shedding caused by vibration and lowering the risks of corroding a battery cell casing and causing damage to the internal insulating environment, improving the protective performance.
Resumen de: WO2026056688A1
A battery cell, a battery device, and an electric device. The battery cell 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 side of the negative electrode current collector. The negative electrode film layer comprises a pressing aid, and the pressing aid has a flake-like structure. The maximum flake diameter of the pressing aid in the direction perpendicular to the thickness direction is L1, and the thickness of the pressing aid is L2, wherein L1/L2 ≥ 2. The battery cell has improved cycle performance.
Resumen de: WO2026056685A1
The present application belongs to the technical field of batteries, and specifically relates to a sodium metal battery and a preparation method therefor, and an electrical apparatus. The sodium metal battery comprises a positive electrode sheet and a negative electrode sheet. The negative electrode sheet comprises a negative current collector, and a sodium metal layer located on at least one side surface of the negative current collector. A separator film is located between the positive electrode sheet and the negative electrode sheet. The separator film comprises a base film, and a first coating layer located on at least one side surface of the base film, and at least a part of the first coating layer faces the sodium metal layer. The first coating layer has a 20%-80% compression deformation in the sodium metal battery. The design method provided in the present application is beneficial to improving the safety of a battery.
Resumen de: WO2026056206A1
Provided in the present application are a power battery and a vehicle. The power battery comprises a housing, a heating device, and a battery cell, wherein the heating device is arranged inside of the housing, the heating device comprising a middle region and edge regions, the heating device comprising a plurality of resistors, the plurality of resistors being distributed in the middle region and the edge regions, and the heating power of the resistors located in the middle region being lower than the heating power of the resistors located in the edge regions; and the battery cell is arranged in the housing and is connected to the heating device. According to the power battery provided in the application, the heating power of the resistors in the middle region is lower than the heating power of the resistors in the edge regions, such that heat generated by the resistors in the middle region can be less than heat generated by the resistors in the edge regions. In other words, the heating temperature for a battery cell with a relatively high temperature in the middle region is set to be lower than the heating temperature for a battery cell with a relatively low temperature in the edge regions, thereby allowing the temperature of the battery cell in the middle region after being heated to be consistent or nearly consistent with the temperature of the battery cell in the edge regions after being heated, and achieving temperature equalization of the power battery after being heate
Resumen de: WO2026056112A1
The present invention relates to the technical field of batteries, and in particular, to a solid-state electrolyte, a battery containing the solid-state electrolyte, and a preparation method therefor. The solid-state electrolyte is prepared from an electrolyte precursor by means of a thermally-initiated in-situ polymerization process; the electrolyte precursor comprises cellulose, a polymer monomer, a lithium salt, a plasticizer, an additive, and a thermal initiator; by means of dissolving cellulose in the solid-state electrolyte precursor and uniformly compounding with a separator during in-situ polymerization, the heat shrinkage resistance of the separator and the overall safety of the battery are improved; compared with the process of using cellulose on the separator side to improve safety, the present invention does not require any additional treatment on the separator, does not increase the thickness of the separator, and the prepared battery has good overall performance and a low cost. During the manufacturing process of the battery in the present application, the cellulose-containing solid-state electrolyte is compounded with the separator to form a solid-state electrolyte-separator composite with high mechanical strength and high thermal stability, thereby improving the resistance of the battery to thermal runaway.
Resumen de: WO2026056202A1
Provided in the present application are a beam structure, a battery box, and a battery pack. The beam structure comprises an anti-expansion beam and a frame beam, a first side of the anti-expansion beam being used for abutting against a cell of a battery pack, the frame beam being connected to a second side of the anti-expansion beam, and the frame beam being located on the outermost side of a box of the battery pack to be used as a side frame of the box, wherein the anti-expansion beam and the frame beam are integrally arranged.
Resumen de: WO2026056683A1
The present application provides a battery module and an electric power-assisted bicycle, the battery module being configured to be mounted in a battery accommodating cavity of the electric power-assisted bicycle, and the battery module comprising multiple battery cells, a tab plate, and a battery management circuit board; each battery cell is columnar, and the multiple battery cells are linearly arranged in a column in sequence along the length direction of the battery accommodating cavity, to form a linear battery pack; the tab plate is strip-shaped, the tab plate is arranged approximately parallel to the arrangement direction of the multiple battery cells, the tab plate is located on a side of the battery pack, and the tab plate is provided with multiple positive electrode connecting portions and multiple negative electrode connecting portions; there is one battery cell in the cross-section of the battery module, the positive electrode and the negative electrode of each battery cell are electrically connected to a positive electrode connecting portion and a negative electrode connecting portion of the tab plate, respectively, and the battery management circuit board collects parameters of the multiple battery cells by means of the tab plate. The described battery module and electric assisted bicycle can enable the battery module to adapt to an internal space of the frame of the electric assisted bicycle.
Resumen de: WO2026056666A1
A battery protection plate integrated with combustible gas regulation and control, a preparation method therefor, and a battery module. The battery protection plate integrated with combustible gas regulation and control comprises: a porous heat-insulation base material; a phase change hydrogel, which is adsorbed in the pore structure of the porous heat-insulation base material; an aerogenesis flame retardant layer, which is arranged on the surface of at least one side of the porous heat-insulation base material; and a packaging film, which is arranged on the outer side of the aerogenesis flame retardant layer and the porous heat-insulation base material, and is used for packaging the porous heat-insulation base material and and the aerogenesis flame retardant layer.
Resumen de: WO2026056742A1
The present application discloses a novel housing, comprising a side wall (131) and a housing bottom cover (13). The central region of the housing bottom cover (13) is an explosion-proof region (1321). The area of the explosion-proof region (1321) is not greater than 1/2 of the area of the housing bottom cover (13), and the thickness of the explosion-proof region (1321) is not greater than the thickness of the housing bottom cover (13). An explosion-proof notch (13211) is provided in the explosion-proof region (1321). After the explosion-proof region is provided in the central region of the bottom of the housing of the present application, when thermal runaway occurs in a battery, the explosion-proof region bursts by means of the explosion-proof notch, and blockage is not prone to occur, thereby improving the safety of the battery on the whole, and also reducing the processing and manufacturing costs of the housing.
Resumen de: WO2026056013A1
A carbon nanohorn inorganic filler composite solid-state electrolyte, a preparation method therefor, and a use thereof, relating to the technical field of solid-state batteries. The raw materials thereof comprise a polymer, carbon nanohorns, and an alkali metal salt; the carbon nanohorns are prepared by a DC arc plasma method; the polymer is poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP); and the alkali metal salt is sodium bis(fluorosulfonyl)imide or lithium bis(fluorosulfonyl)imide. Introducing carbon nanohorns, which have a high specific surface area, into the solid-state electrolyte aims to utilize high specific surface area and defect structure thereof to improve the ionic conductivity of a polymer solid-state electrolyte. The unique structural characteristics of carbon nanohorns can provide more ion transport channels in the composite material, enhancing lithium ion mobility. The carbon nanohorn inorganic filler composite solid-state electrolyte demonstrates good mechanical properties and a thickness as low as 15 μm, with an ionic conductivity of up to 0.87 mS/cm; when used in solid-state batteries, it exhibits excellent rate capability and cycle performance.
Resumen de: WO2026055816A1
Provided in the embodiments of the present application are an energy storage device and an energy storage system, enabling an increase in the electricity storage capacity per unit land area while achieving the goal of dissipating heat from the energy storage device. The energy storage device comprises: a top wall; and a ventilation structure, which is arranged on the top wall, the ventilation structure being used for discharging heat inside the energy storage device to the outside, wherein the top wall is the wall of the energy storage device perpendicular to the direction of height, and when the energy storage device is in use, the top wall is located at the top of the energy storage device.
Resumen de: WO2026056476A1
An electrochemical device and an electronic device comprising same. The electrochemical device comprises a positive electrode sheet; the positive electrode sheet comprises a current collector and a positive electrode material layer located on at least one surface in the thickness direction of the current collector; the positive electrode material layer comprises a first positive electrode material layer and a second positive electrode material layer; the second positive electrode material layer is located between the first positive electrode material layer and the current collector; the positive electrode material layer comprises a positive electrode active material; the positive electrode active material comprises two or more lithium nickel manganese cobalt oxide ternary materials; the two or more lithium nickel manganese cobalt oxide ternary materials are divided into two groups; the chemical formula of the first group of lithium nickel manganese cobalt oxide ternary materials is Lin1Nix1Coy1Mnz1M1m1O2, wherein x1+y1+z1+m1=1, and 0.15≤y1≤0.60; the chemical formula of the second group of lithium nickel manganese cobalt oxide ternary materials is Lin2Nix2Coy2Mnz2M2m2O2, wherein x2+y2+z2+m2=1, and 0
Resumen de: WO2026056663A1
The present disclosure relates to the technical field of batteries, and provides a secondary battery. An adapter piece of the secondary battery comprises: a pole connecting portion, a tab connecting portion, and an auxiliary connecting portion; the pole connecting portion is configured to be connected to a pole; the tab connecting portion is configured to be connected to a tab; in a first direction, the pole connecting portion is connected to the tab connecting portion; in a second direction, the width of the tab connecting portion is greater than the width of the pole connecting portion; the first direction is not parallel to the second direction; in the second direction, the auxiliary connecting portion is arranged on one side of the pole connecting portion; the auxiliary connecting portion has one end connected to the pole connecting portion and the other end connected to the tab connecting portion; and the auxiliary connecting portion is configured to reduce the temperature rise of the adapter piece. The secondary battery uses the auxiliary connecting portion to reduce the temperature rise at the connection boundary between the pole connecting portion and the tab connecting portion of the adapter piece, thereby reducing the overall temperature of the adapter piece. In addition, the arrangement of the auxiliary connecting portion can also reduce the amount of material punched out from a sheet during manufacturing, thereby improving the material utilization rate.
Resumen de: WO2026056604A1
A pressure regulation system (100) and method, a thermal runaway management system (10), and a battery pack. The pressure regulation system (100) comprises a gas collection line (101), a vent valve (102) and a balance valve (103), wherein the gas collection line (101) is arranged outside the battery pack, two ends of the vent valve (102) respectively communicate with one end of the gas collection line (101) and the interior of the battery pack, and two ends of the balance valve (103) respectively communicate with the interior of the battery pack and the external environment of the battery pack.
Resumen de: WO2026056559A1
Provided are a thermal runaway management system and method, and a battery pack. The thermal runaway management system comprises a battery monitoring circuit, a fire suppression assembly, and a gas collection assembly, wherein the battery monitoring circuit and the fire suppression assembly are both arranged inside a battery pack; the battery monitoring circuit is electrically connected to a battery cell in the battery pack; the fire suppression assembly and the gas collection assembly are electrically connected to the battery monitoring circuit; the battery monitoring circuit can be configured to monitor the temperature of the battery cell, control the fire suppression assembly to perform fire extinguishing inside the battery pack, and simultaneously control the gas collection assembly to collect gas inside the battery pack.
Resumen de: WO2026056554A1
A battery energy storage container and a battery energy storage apparatus. The battery energy storage container comprises a container body and a fire-fighting system; the fire-fighting system comprises aerosol fire-extinguishing devices and a water spray fire-extinguishing device; the aerosol fire-extinguishing devices are configured to be located above a battery pack; the water spray fire-extinguishing device comprises a fire-fighting pipe and spray heads; one end of the fire-fighting pipe is configured to be connected to a fire-fighting water source, and the other end of the fire-fighting pipe is connected to the spray heads; and the spray heads are configured to be located above the battery pack.
Resumen de: WO2026056466A1
The present application relates to the technical field of energy storage, and discloses an end cover assembly, an energy storage apparatus, and an electric device. The end cover assembly comprises: a cover plate; an electrode post, comprising a pressing block, a columnar body, and a flange, wherein the pressing block is located on a first side of the cover plate and has a first through hole, a first end portion of the columnar body passes through a mounting hole of the cover plate and is limited in the first through hole, the hole wall of the first through hole and/or the side wall of the first end portion has a gas guiding groove, and the gas guiding groove is in communication with the mounting hole and is in communication with the external environment on the first side of the cover plate; a first insulating member, located between the cover plate and the pressing block; and a sealing member, sleeved on the columnar body.
Resumen de: WO2026056411A1
A separator and a preparation method therefor and a use thereof. The preparation method comprises the following steps: S1: performing double-side coating on a substrate to obtain a first membrane material; and S2: performing phase inversion on the first membrane material to obtain a separator. The double-side coating is performed by means of two slit dies arranged opposite to each other, and during double-side coating of the substrate by means of the two slit dies, the distances between the substrate and the two slit dies are equal; and the opening degree of a die lip of a slit die is denoted as S, the thickness of the substrate is denoted as T, the sum of the spacings from the two slit dies to the substrate is denoted as D, and S, T and D satisfy the following relationship: 3S≤D-T≤55S. By adopting face-to-face coating with the two slit dies and limiting the relationship among the opening degree of the die lip of the slit die, the thickness of the substrate, and the sum of the spacings from the two slit dies to the substrate, the consistency of the thickness on two sides of the separator is ensured, and the thickness deviation of coatings on two sides of the prepared separator is reduced.
Nº publicación: WO2026056400A1 19/03/2026
Solicitante:
ZHANGJIAGANG GUOTAI HUARONG NEW CHEMICAL MAT CO LTD [CN]
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Resumen de: WO2026056400A1
The present invention provides a non-aqueous electrolyte and a lithium-ion battery, for solving the problems of high internal resistance, high-temperature gas production and poor capacity retention rate at high and low temperatures of lithium-ion batteries. The non-aqueous electrolyte comprises a lithium salt, an organic solvent and an additive. The additive comprises a succinic anhydride derivative and a fluorinated ester compound, wherein the succinic anhydride derivative is selected from one or more of substances represented by general structural formula (1) and/or structural formula (2); and the fluorinated ester compound is selected from one or more of fluoroborate ester (3), fluorinated carboxylate ester (4), fluorinated aliphatic carbonate ester (5), fluorinated phosphate ester (6) and fluorinated phosphite ester (7).
BOPI
Sede Electrónica
