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1601
results.
Updated on
20/03/2026 [07:15:00]
Results 975 to 1000 of 1601
Absstract of: US20260066403A1
Disclosed is a self-assembled cast polypropylene (CPP) base film of an aluminum-plastic film for new energy pouch batteries and a preparation method thereof. The base film comprises a self-assembled heat sealing layer, a support layer and a composite layer. The preparation process includes charging the raw materials of three layers into a three-layer co-extrusion casting machine and setting the relevant parameters for preparation, then performing a corona treatment. The present disclosure utilizes an organic hybrid micro-nano thermal conductive material to induce the heat sealing layer to produce a self-assembly function in a high temperature environment after heat sealing, thereby effectively preventing the pouch batteries from short circuit or explosion in a high temperature environment.
Absstract of: US20260066497A1
A battery cell, a battery, and an electric apparatus. The battery cell includes: an electrode assembly, including a body portion and a first tab. A first size L1 of the body portion in a length direction thereof is greater than a second size L2 of the body portion in a width direction thereof. The first tab is located on at least one end of the body portion in the width direction. The first tab has a third size L3 in the length direction. The first size L1, the second size L2, and the third size L3 satisfy 0.5L2≥L3≥L1.
Absstract of: US20260066473A1
An electrode assembly, a battery, and an electric device. The electrode assembly includes a first electrode, a second electrode, a first separator, and a second separator. One of the first separator and the second separator is disposed between the first electrode and the second electrode. The other of the first separator and the second separator is disposed on a side that is of the first electrode or the second electrode and that faces away from the first separator. One of the first separator and the second separator does not include a porous coating. The other of the first separator and the second separator includes a porous coating. The thickness of the porous coating is 0.5 μm to 8 μm. The electrode assembly in the present application includes a specific first separator and a specific second separator, which can effectively improve cycling performance of the battery.
Absstract of: US20260066468A1
A secondary battery, including a positive electrode sheet, a negative electrode sheet, and a separator. The separator includes a base membrane and a coating arranged on at least one surface of the base membrane; the coating includes a composite polymer and a binder, and the composite polymer includes a first polymer for an inner core layer and a second polymer for a cladding layer arranged on the surface of the inner core layer; the peel strength between the separator and the positive electrode sheet is 1-5 N/m, and the thermal shrinkage rate of the separator in MD and TD directions is less than 5% at 130° C. for 0.5 h.
Absstract of: US20260066487A1
Provided are a blade battery and a battery pack including the same. The blade battery includes: at least one positive plate, with a first tab and a second tab respectively disposed at two adjacent edges; a plurality of negative electrode plates, each having a third tab and a fourth tab respectively disposed at two adjacent edges, each of two opposite sides of each positive electrode plate being covered by one negative electrode plate, the first tab and the third tab being located at two opposite sides of the blade battery, and the second tab and the fourth tab being located at two opposite sides of the blade battery, respectively; a positive cover plate connected to the first tab and the second tab to form a positive electrode; and a negative cover plate connected to the third tab and the fourth tab to form a negative electrode.
Absstract of: US20260066448A1
A battery cell includes: a case including a mounting wall; an electrode assembly disposed within the case; an explosion-proof valve disposed on the mounting wall; and a gas guide portion including a gas guide groove formed in the mounting wall, the gas guide groove being configured to guide gas generated by the electrode assembly toward the explosion-proof valve.
Absstract of: US20260066358A1
A secondary battery, a battery module, and an electronic apparatus are provided. The secondary battery includes a casing and a terminal assembly. The casing includes an end wall and a side wall surrounding the end wall, and an axis of the casing is a first axis. The electrode assembly accommodated in the casing includes a positive terminal sheet, a negative terminal sheet, and a separator stacked and wound to form a wound structure. A number of turns of the negative terminal sheet is greater than 40 turns, and an axis of the wound structure is a second axis. When a state of charge (SOC) of the secondary battery is less than 5%, the second axis is located in a cylindrical region with the first axis as the axis and a diameter d1 of φ0.6 mm.
Absstract of: US20260066490A1
A battery cell, a battery, an electrical apparatus, and an energy storage cabinet are disclosed. The battery cell includes a shell, multiple pole groups, and multiple electrode terminals. The shell has a wall portion, and the pole groups are received in the shell and arranged along a first direction. Each pole group includes a main body group and two tab groups, the two tab groups being spaced apart along the first direction on one side of the main body group in a second direction and having opposite polarities. The electrode terminals are disposed on the wall portion and spaced apart along the first direction. Two tab groups adjacent in the first direction from two neighboring pole groups share one electrode terminal, while the two farthest tab groups are connected to two respective electrode terminals. This configuration reduces the number of electrode terminals, optimizes production rhythm, and improves manufacturing efficiency.
Absstract of: US20260066333A1
A molten lithium metal battery based on a ceramic electrolyte sheet, comprising: a casing in the shape of the Chinese character “” and a ceramic electrolyte sheet, wherein the ceramic electrolyte sheet divides said casing into an upper part and a lower part, the upper part is a negative electrode chamber, the lower part is a positive electrode chamber, a positive electrode material is contained in the positive electrode chamber, and a lithium recess is formed in the negative electrode chamber; gas guide metal tubes, wherein the gas guide metal tubes are connected to and communicated with said casing, and openings of the air guide metal tubes are higher than the bottom surface of the ceramic electrolyte sheet; an upper cover and a negative electrode current collector, wherein the negative electrode current collector passes through the upper cover and is led out from the upper cover, the negative electrode current collector and the upper cover are sealed together by means of an insulating sealing material, the upper cover is arranged at the top of said casing and seals said casing, a negative electrode material is contained in the lithium recess, and a seal is formed between the lithium recess and said casing; and a bottom cover, wherein the bottom cover is connected to the bottom end of said casing.
Absstract of: US20260066306A1
This application provides a negative electrode and a preparation method therefor, a battery cell containing the same, a battery, and an electric apparatus, where the negative electrode includes a negative electrode current collector and a coating disposed on at least one surface of the negative electrode current collector, the coating includes a flexible carbon material, the flexible carbon material includes micropores with a pore diameter less than or equal to 0.8 nm, a pore volume of the micropores with a pore diameter less than or equal to 0.8 nm is denoted as Vmic, a pore volume of the flexible carbon material is denoted as Vtotal, both in units of cm3/g, and Vmic:Vtotal≥65:100.
Absstract of: US20260066346A1
An electrolyte includes lithium tetrafluoroborate and a compound of Formula Iwhere a mass percentage A of the lithium tetrafluoroborate satisfies 0.1%≤A≤2%, and a mass percentage B of the compound of Formula I satisfies 0.010%≤B≤20%.
Absstract of: US20260066349A1
An electrolyte includes a compound of formula Iand a compound of formula IIBased on a mass of the electrolyte, a mass percentage A of the compound of formula I satisfies 0.01%≤A≤70%, and a mass percentage B of the compound of formula II satisfies 2.0%≤B≤20%.
Absstract of: US20260066359A1
A secondary battery is provided, including an electrode assembly which includes a negative pole sheet, a first separator, a positive pole sheet, and a second separator stacked and wound in sequence. The negative pole sheet includes a negative coated area and a negative tab protruding from the negative coated area. The positive pole sheet includes a positive coated area and a positive tab protruding from the positive coated area. The negative tab and the positive tab are respectively located on two opposite sides of the electrode assembly, and a direction from the negative tab to the positive tab is a height direction. Along the height direction, an upper end of the negative coated area overhangs an upper end of the positive coated area. Along a direction away from the height direction, a lower end of the negative coated area overhangs a lower end of the positive coated area.
Absstract of: US20260066404A1
An aerosol-generating system is provided, including: a battery including an electrode component and a packaging for the electrode component; and an adhesive element provided in between the electrode component and the packaging, the packaging including a packaging layer and a protective layer, the protective layer being arranged in between the packaging layer and the electrode component, the protective layer being electrically non-conductive, the adhesive element being in contact with the protective layer, the protective layer being provided with an adhesive or including adhesive, and the adhesive of the protective layer being configured to increase its adhesive force during heating in manufacturing of the battery from an initial value that is lower than an adhesive force of the adhesive element. A method of manufacturing a battery for an aerosol-generating system is also provided.
Absstract of: US20260066387A1
Provided are a cooling plate, a battery pack, and an electric device. The cooling plate has at least one flow channel. The at least one flow channel includes a first flow channel. The first flow channel has a cross section in a shape of a non-circle. In the case that the cooling plate is subjected to an external pressure, the shape of the cross section of the first flow channel changes to enable a volume of the first flow channel to be increased.
Absstract of: US20260066257A1
A battery aluminum foil coating device, a battery aluminum foil coating method, and a battery are provided. By sequentially passing the aluminum foil through an unwinding mechanism, a double-sided coating assembly, a first-sided coating assembly, a second-sided coating assembly and a winding mechanism to complete double-sided coating, the aluminum foil carbon layer coating process and the electrode slurry coating process may be combined, production cost may be reduced, production cycle may be shortened, and resource waste may be reduced.
Absstract of: US20260066292A1
A positive electrode plate, a preparation method thereof, a secondary battery, and an electric apparatus. The positive electrode plate includes a current collector and a positive electrode film layer formed on at least one side of the current collector. The positive electrode film layer includes a positive electrode active material comprising a substrate and a carbon coating layer on the surface of the substrate. The substrate has a general formula LizFexMn(1-x-y)MyPO4, where 1≤z≤1.1, 0.5≤x≤1, 0≤y≤0.1, and M is at least one of Ti, V, and Mg. At least part of the active material includes primary particles, with no more than 10% having sizes between 80 nm and 180 nm, and no more than 15 particles exceeding 1500 nm within a defined microscopic region. This structure improves the particle size distribution concentration, enhancing the cycling performance of batteries.
Absstract of: US20260066384A1
A battery for an electric vehicle is provided. The battery includes a battery pack housing, a battery pack carried by the battery pack housing, and a superbeam contained within the battery pack housing. The superbeam includes a first face plate, a first passenger plate that partially abuts the first face plate, a first subchannel defined by the first face plate and the first passenger plate, a second passenger plate, a thermal barrier interlayer disposed between the first passenger plate and the second passenger plate, a second face plate opposite the first face plate, a second subchannel defined by the second face plate and the second passenger plate, and an inlet port and an outlet port extending through the superbeam. A portion of the first passenger plate and a portion of the second passenger plate define an air gap. The thermal barrier interlayer extends into the air gap.
Absstract of: US20260066289A1
A positive electrode material, including a lithium cobalt composite oxide, where the lithium cobalt composite oxide includes a matrix and a coating layer located on a surface of the matrix, the coating layer includes a first region and a second region, the first region has a P63mc crystal structure, the second region has an R-3m crystal structure, and both the first region and the second region contain element Na. The positive electrode material of this application can reduce interface impedance during lithium-ion intercalation and deintercalation, improving high-temperature storage performance and cycling performance of the electrochemical device under high voltage.
Absstract of: US20260066288A1
An electrochemical apparatus includes a positive electrode and a non-aqueous electrolyte, where the positive electrode includes a positive electrode material layer disposed on at least one surface of a positive electrode current collector, the positive electrode material layer includes a lithium-containing transition metal composite oxide, and the lithium-containing transition metal composite oxide includes LixNazCo1-yMyO2, where 0.6
Absstract of: US20260066276A1
A lithium-ion secondary battery includes a positive electrode current collector, which is provided with N positive electrode tabs, N≥2, and at least a part of a functional surface of the positive electrode current collector is provided with a positive electrode functional layer including a positive electrode active material. The positive electrode active material includes a monocrystal ternary material with a chemical composition of LipMem(NixCoyMnz)O2 and a polycrystal ternary material with a chemical composition of LiqMen(NiaCobMnc)O2, and the lithium-ion secondary battery satisfies 0.2≤(C×N)/W≤7.5, where C is the molar content of nickel of the positive electrode active material; and W is the width of the positive electrode tabs.
Absstract of: US20260062506A1
The present application provides an ultrahigh-molecular-weight polyolefin separator, including ultrahigh-molecular-weight polyethylene. ultrahigh-molecular-weight polyethylene has an average molecular weight of ≥1 million. The ultrahigh-molecular-weight polyolefin separator has a median aperture of 0.04 μm-1 μm, the maximum aperture of no more than 1.2 μm, and a puncture strength of ≥50 gf. Further, the present application further provides a method for preparing an ultrahigh-molecular-weight polyolefin separator. Because the polyolefin separator is safer than an ordinary non-woven separator, and has higher ionic conductivity and larger median aperture, the problems that an ordinary non-woven separator of a lithium-ion battery, although having a high lithium-ion passage rate, has a high degree of danger, and is prone to cause a short circuit of the battery are exactly solved.
Absstract of: US20260062310A1
The present disclosure belongs to the field of sodium batteries. Provided are a composite sodium ferrous sulfate cathode material, and a preparation method and application thereof. The composite sodium ferrous sulfate cathode material includes a core. A chemical formula of the core is NaxMyFez(PO4)k(SO4)(0.4-0.6) xOt, where M includes at least one of manganese, vanadium, or titanium, 16≤x≤17, y=1, 4≤z≤5, 2≤k≤2.6, and y+z−0.1x−1.5k≤t≤y+z+0.1x−1.5k. According to the present disclosure, sulfate decomposition is reduced, the material performance of the composite sodium ferrous sulfate cathode material is improved, and a secondary battery using the composite sodium ferrous sulfate cathode material is improved in terms of performance such as cycling performance.
Absstract of: US20260062308A1
A lithium supplement includes a core and a coating layer located on at least part of a surface of the core. The core satisfies a chemical formula LixM1yM21−yO6, where: 6≤x≤8; 0
Nº publicación: US20260062298A1 05/03/2026
Applicant:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
Contemporary Amperex Technology Co., Limited
Absstract of: US20260062298A1
The present application discloses a positive electrode active material, a preparation method thereof, a battery cell, and a power consuming apparatus. The positive electrode active material includes a lithium-containing phosphate, a charge capacity per gram of the positive electrode active material at 25° C. is denoted as C1, the charge capacity per gram of the positive electrode active material at 60° C. is denoted as C2, both units are mAh/g, and C2/C1≥1.020. The positive electrode active material provided in the present application can improve a cycle performance of a battery.
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