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932
resultados
Última actualización
08/02/2026 [07:30:00]
Resultados 125 a 150 de 932
Resumen de: WO2026029598A1
Disclosed is a solid electrolyte. The solid electrolyte includes at least one compound selected from compounds represented by chemical formulae 1 to 3: Chemical formula 1 Li3MO1+xH4-2z; Chemical formula 2 Li3-yM1-yM'yO1+xH4-2z; and Chemical formula 3 Li3-2yM1-yM'yO1+xH4-2z, wherein, in chemical formulae 1 to 3, x, y, z, M, M', and H are as defined in the detailed description.
Resumen de: WO2026025496A1
Provided in the present application are a battery cell and an electrical apparatus. The battery cell comprises a positive electrode sheet, a negative electrode sheet and a separator arranged between the positive electrode sheet and the negative electrode sheet. The positive electrode sheet comprises a positive electrode current collector and a positive electrode film layer arranged on the surface of at least one side of the positive electrode current collector. The positive electrode film layer comprises a positive electrode active material, the positive electrode active material comprising a lithium-containing phosphate, and the areal density of the positive electrode film layer on one surface being 0.35g/1540.25mm2 to 0.5g/1540.25mm2. The negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer arranged on the surface of at least one side of the negative electrode current collector, the areal density of the negative electrode film layer on one surface being 0.13g/1540.25mm2 to 0.19g/1540.25mm2. The negative electrode film layer comprises a negative electrode active material, the negative electrode active material comprising a silicon element-containing material, and the mass ratio of the silicon element to the negative electrode active material being 2% to 10%.
Resumen de: WO2026026099A1
The present application provides a battery cell, a battery apparatus and an electrical apparatus. The battery cell of the present application comprises an electrode assembly, the electrode assembly comprising a positive electrode sheet, a negative electrode sheet and a non-aqueous electrolyte; the positive electrode sheet comprises a positive electrode current collector and a positive electrode active layer arranged thereon, the positive electrode active layer comprising a positive electrode lithium supplementing material; the non-aqueous electrolyte comprises an electrolyte additive represented by formula (I). The energy density, cycle performance and high-temperature storage performance of the battery of the present application are simultaneously improved.
Resumen de: WO2026026031A1
The present application relates to the technical field of batteries, and relates in particular to a battery pack, an electrical device, and an energy storage apparatus. The battery pack of the present application comprises a battery unit and a heat exchange assembly. The battery unit comprises a plurality of battery cells stacked in a first direction. The heat exchange assembly comprises at least one heat exchange unit. The heat exchange unit comprises a first heat exchange tube, a communication tube, and a second heat exchange tube, which are sequentially connected. The heat exchange unit is used for circulating a heat exchange medium. The flow directions of the heat exchange medium in the first heat exchange tube and in the second heat exchange tube are opposite to each other. The communication tube is provided separately from and connected to the first heat exchange tube and the second heat exchange tube. The battery unit separately exchanges heat with the first heat exchange tube and the second heat exchange tube of the at least one heat exchange unit. According to the battery pack of the present application, a heat exchange area between the heat exchange unit and the battery unit can be increased, thereby improving the heat exchange efficiency between the heat exchange unit and the battery unit.
Resumen de: WO2026029543A1
According to an embodiment of the present invention, there are provided a cathode for a lithium secondary battery, a manufacturing method therefor, and a lithium secondary battery comprising same. The cathode comprises a cathode mixture layer formed on one side or both sides of a cathode current collector, wherein the cathode mixture layer comprises a cathode active material and a mixed conductive material, the cathode active material comprises a carbon coating layer on the surface thereof and a lithium compound represented by chemical formula 1, and the mixed conductive material comprises a first conductive material having a specific surface area (BET) of 50 m2/g to 70 m2/g and a second conductive material having a BET of 100 m2/g to 300 m2/. Chemical formula 1 Li1+aTibMncO2-dXd In chemical formula 1, 0.1≤a≤0.5, 0.3≤b≤0.5, 0.3≤c≤0.5, 1.1≤(1+a)/(b+c)≤1.4, 0≤d≤0.2, and X is a halogen element.
Resumen de: WO2026029548A1
The present invention relates to a cathode material powder comprising a cathode active material, the cathode active material comprising: a core; and a shell disposed on the surface of the core, wherein the core includes a first phosphate represented by chemical formula 1 according to the present invention, and the shell includes a second phosphate represented by chemical formula 2 according to the present invention.
Resumen de: WO2026029539A1
The disclosed invention relates to a prismatic secondary battery accommodating an electrode assembly and an electrolyte within a metal case having a hexahedral shape. The electrode assembly is characterized by comprising a plurality of unit electrode assemblies stacked in the thickness direction.
Resumen de: WO2026029465A1
The technical idea of the present invention provides a battery device comprising: a cell assembly including a plurality of battery cells; a top pad on the cell assembly; a housing including a base frame supporting the cell assembly and a top frame covering the top pad, wherein the base frame includes a plurality of venting holes; and a venting cover provided between the cell assembly and the base frame and covering the plurality of venting holes of the base frame.
Resumen de: WO2026029453A1
A negative electrode material for a lithium secondary battery, according to one embodiment, comprises: a core comprising natural graphite particles coated with a coating layer comprising amorphous carbon; and conductive carbon bound to the core, wherein the linseed oil absorption is 35.0 ml/100 g or less.
Resumen de: WO2026029430A1
The present invention relates to a cathode active material for an all-solid-state battery, comprising: a core part comprising lithium-metal oxide; and a coating part positioned on the surface of the core part and comprising an amorphous phase, wherein the amorphous phase comprises lithium oxide and titanium oxide.
Resumen de: WO2026026019A1
An electrode sheet processing device (100), a battery processing system (1000), an electrode sheet (2111) processing method and a battery (2000). The electrode sheet processing device (100) comprises a glue application roller (10) and a driving mechanism, wherein the driving mechanism is configured to drive the glue application roller (10) to rotate; an outer peripheral wall of the glue application roller (10) is configured to make contact with an electrode sheet (2111); and the outer peripheral wall of the glue application roller (10) comprises a glue application area (11) and a transition area (12) distributed in a circumferential direction, the glue application area (11) being provided with a glue groove (11111) for accommodating conductive glue, and the glue application area (11) being configured to allow the conductive glue to be roll-coated on the electrode sheet (2111) when making contact with the electrode sheet (2111). The electrode sheet processing device can roll-coat the conductive glue onto a bent portion of the electrode sheet, thereby improving the problem of cracking at the bent portion.
Resumen de: WO2026025972A1
The present application provides a secondary battery and an electric device. The secondary battery comprises a positive electrode sheet, a negative electrode sheet, and an electrolyte, wherein the positive electrode sheet comprises a positive electrode current collector and a positive electrode film layer provided on at least one side of the positive electrode current collector; and the positive electrode film layer comprises lithium-containing transition metal phosphate particles having different manganese-iron molar ratios, and on the basis of the total number of moles of Mn in the lithium-containing transition metal phosphate particles, the molar fraction of Mn contributed by the lithium-containing transition metal phosphate particles having a primary particle size less than or equal to 180 nm and greater than or equal to 50 nm is less than or equal to 12% and greater than or equal to 0%. The secondary battery of the present application has both good powder compaction density and excellent storage performance.
Resumen de: WO2026025969A1
A battery apparatus of the present application comprises battery cells and a battery case, wherein the battery case comprises a case frame and a heat exchange plate; the case frame defines a mounting cavity; the case frame comprises a first end portion; a first opening communicated with the mounting cavity runs through the first end portion; the heat exchange plate is arranged on the side of the first end portion facing away from the mounting cavity and is used for blocking the first opening; the heat exchange plate is thermally coupled to the battery cells; the first end portion comprises a first mounting portion and a second mounting portion which are continuously arranged, the first mounting portion abuts against the heat exchange plate, the second mounting portion is spaced apart from the heat exchange plate, and the first mounting portion is located on the side of the second mounting portion close to the first opening or the first mounting portion is located on the side of the second mounting portion facing away from the first opening; a sealing slot for accommodating a sealant is formed between the second mounting portion and the heat exchange plate, at least one of the second mounting portion and the heat exchange plate is provided with a first protruding rib, and the first protruding rib protrudes towards the inside of the sealing slot. The present application can improve the sealing effect of the case frame and the heat exchange plate.
Resumen de: WO2026029454A1
Disclosed is a negative electrode material for a lithium secondary battery. The negative electrode material includes spherical natural graphite and a surface layer disposed on the surface of the spherical natural graphite and containing carbon. The ratio of AR(TL) to AR(AM), i.e., AR(TL)/AR(AM) is 4.0 or less, where AR(AM) is the area ratio occupied by voids on the particle surface in a scanning electron micrograph of the negative electrode material in the size range of D50 + 0.15D50 to D50 - 0.15D50 on the basis of D50 in a volumetric cumulative particle size distribution, and AR(TL) is the area ratio occupied by voids on the particle surface in a scanning electron micrograph of the low-temperature oxidation treated negative electrode material in the size range of D50 + 0.15D50 to D50 - 0.15D50 following a low-temperature oxidation treatment carried out under condition 1: air atmosphere, TL of 600°C, heat treatment at TL temperature for 2 hours, heating rate of 5°C/min, and cooling rate of 5°C/min.
Resumen de: WO2026029442A1
Provided are: a method for winding an electrode assembly, whereby a jelly-roll may be rapidly discharged to the outside of a can when a thermal runaway occurs, thereby preventing a side rupture phenomenon of the can; an electrode assembly wound thereby; and a battery cell containing same. Outer circumferential portion winding tensions for a separator and an electrode are greater than middle portion winding tensions for the separator and the electrode, respectively, and the middle portion winding tensions for the separator and the electrode are greater than core portion winding tensions for the separator and the electrode, respectively. In the outer circumferential portion section of winding, the separator is wound with an outer circumferential portion winding tension that is greater than the winding tensions for all sections for the electrode. In the middle portion section of winding, the separator is wound with a middle portion winding tension that is greater than the core portion winding tension for the electrode. The electrode and the separator are wound, in the core portion, the middle portion, and the outer circumferential portion sections of winding, respectively, with 300 g.f. and 250 g.f., respectively, 500 g.f. and 400 g.f., respectively, and 700 g.f. and 900 g.f., respectively.
Resumen de: WO2026029288A1
The present invention relates to a cathode active material for a lithium secondary battery, which is provided in the form of single particles, each comprising a nickel-containing lithium metal oxide core and a nickel-containing surface portion, wherein: the surface portion simultaneously contains nickel having an oxidation state of +2 (Ni2+) and nickel having an oxidation state of +3 (Ni3+); and, within the surface portion, at least one region having a Ni2+/Ni3+ ratio higher than that at the outermost surface of the particle exists at a location closer to the center of the particle than to the outermost surface thereof.
Resumen de: WO2026029232A1
The present invention relates to a temperature control device for a household ESS. The present invention comprises a case accommodating a battery, a temperature control element disposed at one side of the case to control temperature according to electric current supply, and a heat dissipation unit connected to the temperature control element to dissipate heat, and can heat and cool an ESS using the temperature control element. Therefore, the present invention, even if made in a small size, can control the temperature of an ESS and thus can be utilized for household use.
Resumen de: WO2026025943A1
A secondary battery, an electric device, a positive electrode active material, and a preparation method therefor. The secondary battery comprises a positive electrode sheet; the positive electrode sheet comprises a positive electrode current collector and a positive electrode film layer provided on at least one surface of the positive electrode current collector; the positive electrode film layer comprises a positive electrode active material; the positive electrode active material comprises a lithium transition metal oxide; the lithium transition metal oxide comprises a nickel element and comprises at least one of a cobalt element, a manganese element and an aluminum element; based on 1 mole of the lithium transition metal oxide, the molar content of a lithium element is 1.01-1.15; and the lithium transition metal oxide further comprises a doping element, and the doping element comprises at least one of Mo, W, Ta, Nb, Sb, Ti, and Zr.
Resumen de: WO2026025923A1
The present disclosure provides a secondary battery, an electrical device, and a liquid-retaining material. The secondary battery comprises a liquid-retaining material and an electrolyte. The liquid-retaining material comprises a crosslinked polymer. The swelling ratio of the crosslinked polymer is 4-13, and the centrifugal electrolyte amount of the crosslinked polymer is 0.37-0.63 g/Ah. The electrolyte comprises an electrolyte in a gel and a liquid electrolyte. The secondary battery has improved liquid retention capacity, thereby reducing the likelihood of lithium plating in the battery and improving the cycling performance of the battery.
Resumen de: WO2026025919A1
A cylindrical lithium-ion battery and an electric apparatus. The cylindrical lithium-ion battery comprises a casing, a jelly roll, which is placed in the casing and is electrically connected to the casing at the bottom end, and a cap correspondingly covering the top end of the jelly roll, wherein the jelly roll is further provided with a current collection sheet at the top end, so as to be electrically connected to the cap; and the current collection sheet comprises a flat portion, a bent portion and a main body portion, which are connected in sequence, the flat portion is electrically connected to the cap, the main body portion is electrically connected to an electrode end face at the top end of the jelly roll, the alternating-current internal resistance of the battery from the bent portion to the cap is set to be a first internal resistance R1, the alternating-current internal resistance of the battery from the bent portion to the bottom end of the casing is set to be a second internal resistance R2, and the first internal resistance R1 and the second internal resistance R2 satisfy: 70%≤R2/(R1+R2)≤95%. By means of performing proportional distribution on R1 and R2, the short-circuit protection function of a current collection sheet can be retained while reducing the overall internal resistance of a lithium battery, thereby achieving a balance between the low internal resistance performance of the battery and the short-circuit protection performance of tabs, and improving
Resumen de: WO2026025931A1
Provided are a secondary battery and an electric device. The secondary battery comprises a positive electrode sheet, a negative electrode sheet, and an electrolyte; a positive electrode film layer in the positive electrode sheet comprises an iron-lithium based positive electrode active material, and a negative electrode film layer in the negative electrode sheet comprises a silicon-based material and a carbon-based material; and a solvent of the electrolyte comprises a cyclic ester solvent and a chain ester solvent. The secondary battery uses the iron-lithium based positive electrode active material, and has good cycle performance and a long service life while having relatively high energy density.
Resumen de: WO2026029032A1
This lithium secondary battery is provided with: a wound electrode group having a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode; a core member disposed in the hollow of the electrode group; and a nonaqueous electrolyte. The negative electrode is where lithium metal is deposited during charging and dissolved in the nonaqueous electrolyte during discharging. The core member is a resin cylindrical body having a seam.
Resumen de: WO2026028940A1
This information processing method comprises: acquiring a first use history of a first battery; acquiring a first predicted deterioration amount of the first battery by inputting the first use history into a first mathematical model; and outputting a second predicted deterioration amount of the first battery by inputting the first predicted deterioration amount and a first feature amount that is calculated from the first use history into a machine learning model.
Resumen de: WO2026028672A1
This method for manufacturing an all-solid-state battery 1 includes: an electrode laminate formation step (S1) for forming an electrode laminate 2; a first stack body formation step (S2) for forming a first stack body 10 by arranging a first electrode laminate 2A between a first positive electrode plate 1011A and a first negative electrode plate 1012A, and arranging a second electrode laminate 2B between a second positive electrode plate 1011B and a second negative electrode plate 1012B; a press step (S3) for pressing the first stack body 10; and a charging step (S4) for charging the first electrode laminate 2A and the second electrode laminate 2B in parallel connection while maintaining the first stack body 10.
Nº publicación: WO2026025911A1 05/02/2026
Solicitante:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
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Resumen de: WO2026025911A1
The present application relates to the technical field of batteries. Provided are a battery cell, a battery and an electric device. The battery cell comprises a casing, electrode terminals, a wound core and a current collector, wherein the electrode terminals are arranged on the casing; the wound core is arranged inside the casing, the axial direction of the wound core being a first direction, and the wound core having a wound core hole and tabs; and at least one end of the wound core in the first direction is provided with a current collector, which comprises a central portion and peripheral portions, the central portion connecting the peripheral portions, the central portion covering the wound core hole, and the peripheral portions being electrically connected to both the tabs and the electrode terminals. The battery cell, the battery, and the electric device provided in the present application are highly reliable.
BOPI
Sede Electrónica
