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THIN BATTERY PACK ARCHITECTURE

Resumen de: US20260066415A1

Battery systems according to embodiments of the present technology may include a battery including a lid that defines lateral dimensions of the battery and a base. The base may define an internal volume of the battery between an interior surface of the lid and an interior surface of the base. The base may be coupled with the lid to define a flange extending about lateral edges of the battery. The base may define a tiered profile along an exterior surface of the battery towards a first lateral edge of the battery. The tiered profile may include a first tier defining a depth of the battery, a second tier defining a first terrace proximate the flange along an intersection of the first lateral edge of the battery and a second lateral edge of the battery, and a third tier extending inward from the first lateral edge of the battery and extending between the first terrace and the second terrace. A battery may also include a module seated on the exterior surface of the base of the battery along the third tier, and between the first terrace and the second terrace.

SECONDARY BATTERY

Resumen de: US20260066491A1

A secondary battery includes: an electrode assembly, a case accommodating the electrode assembly, a cap plate sealing the case; and a current collector plate welded between the electrode assembly and the case or between the electrode assembly and the cap plate. The current collector plate has a slit therein.

SECONDARY BATTERY INCLUDING CENTRAL STRUCTURE AND MANUFACTURING METHOD THEREOF

Resumen de: US20260066411A1

A secondary battery includes an electrode assembly including a first electrode, a separator, and a second electrode stacked sequentially, a first case configured to accommodate a portion of the electrode assembly, a second case configured to accommodate another portion of the electrode assembly, and a central structure between the first case and the second case.

BATTERY MODULE OR PACK

Resumen de: US20260066416A1

A battery pack is described that does not require spot welding and does not require bolts to maintain contact compression of the individual battery cells. In one embodiment, each individual cell is a 18650 size lithium ion rechargeable battery cell, but the battery pack can use any size, type or shape individual battery cells with an easy modification of parts of the battery pack.

ELECTRODE ASSEMBLIES, AND PREPARATION METHODS THEREOF, AND RECHARGEABLE LITHIUM BATTERIES

Resumen de: US20260066460A1

Disclosed are an electrode assembly, a method of preparing the electrode assembly, and a rechargeable lithium battery including the electrode assembly. The electrode assembly includes an electrode current collector, an electrode active material layer on the electrode current collector, and a coating layer located on the electrode active material layer and integrated with the electrode active material layer. The coating layer includes polymer nanofibers. The polymer nanofibers include a fluorine-based polymer and a nitrile-based polymer as a polymer. A dielectric constant of the polymer is greater than or equal to about 0.06 pF/mm3, and the electrical conductivity of the polymer is in a range of about 3.0 μS/mm3 to about 50.0 μS/mm3.

METHODS TO MODIFY PROPERTIES OF A PREVIOUSLY FORMED POLYMER ELECTROLYTE FILM AND PRODUCTS INCORPORATING SUCH FILM

Resumen de: US20260061727A1

Methods of modifying a property of a prefabricated film are provided. The prefabricated film is exposed to a solvent to modify a property of the prefabricated film to provide a modified film. In some embodiments the solvent comprises a plasticizer. In some embodiments, the property comprises ionic conductivity. In some embodiments, the solvent is part of a solution comprising a reactive compound. In some embodiments, the reactive compound comprises an alkali metal salt.

METHOD OF MANUFACTURING BATTERY

Resumen de: US20260063361A1

A method of the present disclosure of manufacturing a battery includes roller-conveying a stack such that a conveyance direction of the stack that has been subjected to heating to a temperature of 120° C. or more is changed by 45° or more along a direction changing roller, the stack including a base material layer and an electrode active material layer. Further, in the method of the present disclosure, a temperature difference between the stack after the heating and the direction changing roller is 80° C. or less.

HEAT MANAGEMENT SYSTEM

Resumen de: US20260063199A1

A heat management system includes: an oil circuit where oil circulates; an LT circuit where cooling water circulates; an LT radiator provided in the LT circuit, and an oil cooler that performs heat exchange between the oil and the cooling water. The oil circuit causes the oil to circulate to a secondary battery and a transaxle that reduces a rotation speed of a motor.

SLURRY COMPOSITION FOR NEGATIVE ELECTRODES FOR SECONDARY BATTERIES

Resumen de: US20260062564A1

There is provided a slurry composition for a negative electrode of a secondary battery suitable for producing a battery such as a lithium ion battery and an electrode, which has high stability and is capable of forming a negative electrode having a low resistance value when formed into an electrode, even when the slurry composition for a negative electrode of a secondary battery uses carbon nanotubes. A slurry composition for a negative electrode of a secondary battery according to the present disclosure includes at least carbon nanotubes, a conductive material, a negative electrode active material, a dispersant, and a binder component. The dispersant includes carboxymethylcellulose having a mass average molecular weight of 300000 or less or a metal salt thereof, and carboxymethylcellulose having a mass average molecular weight of 1000000 to 3000000 or a metal salt thereof.

BATTERY ELECTRODE GRAPHITE DISPERSION

Resumen de: US20260062563A1

Provided is a graphite dispersion for a battery electrode, which is suitable for production of a battery electrode of a lithium ion battery or the like. The graphite dispersion for a battery electrode of the present disclosure includes at least graphite particles having an average particle size of 5 to 50 μm, a dispersing agent, and water.

CYLINDRICAL BATTERY AND BATTERY MODULE

Resumen de: US20260066504A1

Provided is a cylindrical battery including: a shaft core; a set of wound electrodes including an electrode stack wound on the shaft core; an exterior member surrounding the set of wound electrodes; a cap disposed at one axial end of the shaft core and electrically connected to one of the positive and negative electrodes; and an insulating member disposed between the exterior member and the cap, the cap having an outer diameter that is larger than the inner diameter of the exterior member and smaller than the outer diameter of the exterior member, the insulating member having an outer diameter larger than the outer diameter of the cap, the insulating member having a protrusion that is located more inside in the radial direction of the set of wound electrodes than the inner surface of the exterior member and protrudes toward the set of wound electrodes.

WOUND CELL UNLOADING APPARATUS, CELL MANUFACTURING APPARATUS, AND BATTERY MANUFACTURING DEVICE

Resumen de: WO2026045398A1

Embodiments of the present application provide a wound cell unloading apparatus, a cell manufacturing apparatus, and a battery manufacturing device. The wound cell unloading apparatus comprises a first clamping pin and a second clamping pin. The first clamping pin passes through an inner ring of a wound cell, and a surface of the first clamping pin is configured to be in rolling contact with a surface of the inner ring of the wound cell. The second clamping pin is configured to be in contact with a surface of an outer ring of the wound cell, so as to jointly clamp the wound cell together with the first clamping pin. The first clamping pin and the second clamping pin are configured to move in a first direction to stretch the wound cell. The wound cell unloading apparatus of the present application helps reduce the risk of cell cracking, decreases the spacing between electrode sheet layers, and alleviates the problem of poor corner conformity.

SECONDARY BATTERY AND ELECTRIC DEVICE

Resumen de: WO2026045360A1

Provided in the present disclosure is a secondary battery comprising a negative electrode sheet, wherein the negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer disposed on at least one surface of the negative electrode current collector. The negative electrode film layer is provided with a first surface away from the negative electrode current collector and a second surface arranged opposite to the first surface, the thickness of the negative electrode film layer is marked as H. A region with in a thickness range from the first surface to 0.3 H of the negative electrode film layer is marked as the first region of the negative electrode film layer, and a region within a thickness range from the second surface to 0.3 H of the negative electrode film layer is marked as the second region of the negative electrode film layer. The first region comprises a first negative electrode active material, and the second region comprises a second negative electrode active material. The first negative electrode active material comprises primary particles of first artificial graphite, the first negative electrode active material has a powder OI value of 3-6, a graphitization degree of 91-93.5%. The second negative electrode active material has a capacity per gram greater than that of the first negative electrode active material.

CLAMPING DEVICE, BATTERY PRODUCTION APPARATUS AND ELECTRODE ASSEMBLY SHAPING METHOD

Resumen de: WO2026045396A1

A clamping device, which is used for clamping an encapsulated electrode assembly (101). The encapsulated electrode assembly comprises an electrode assembly (30) and an encapsulating film (40). The encapsulating film comprises an accommodating portion (41) for accommodating the electrode assembly and an edge sealing portion (42) surrounding the outer periphery of the accommodating portion. The clamping device comprises: a clamping member (102) for clamping the encapsulated electrode assembly, the clamping member comprising an annular clamping area (102a), and the clamping member being configured to clamp the edge sealing portion in the clamping area; and an adjustment member (103) for adjusting a clamping force applied by the clamping member to clamping the edge sealing portion. The clamping device can alleviate the problem of deformation of the electrode assembly during isostatic pressing. Also provided are a battery production apparatus comprising the clamping device and an electrode assembly shaping method using the clamping device.

BATTERY AND BATTERY PROCESSING TECHNOLOGY THEREFOR

Resumen de: WO2026044488A1

The present application relates to the technical field of batteries, and in particular to a battery and a battery processing technology. The battery comprises: a case, comprising a cell frame having an accommodating space and two case covers, wherein a pole mounting hole, an electrolyte injection hole, and an explosion-proof valve hole are formed on the cell frame; an electrode core assembly, arranged in the accommodating space of the cell frame, wherein the electrode core assembly comprises an electrode core provided with a positive electrode tab and a negative electrode tab, an insulating film sleeved on the outer side of the electrode core, a spacer ring arranged between the tab side of the electrode core and the cell frame, and two side plates arranged between the opposite side of the electrode core and the cell frame; a pole assembly, arranged at the pole mounting hole, wherein the pole assembly comprises a pole, a first sealing ring sleeved on the pole, an outer insulating member and an inner insulating member which are arranged on the inner and outer sides of the pole mounting hole, and an outer connecting member arranged on the outer insulating member and fixed to the pole by welding; an explosion-proof valve, arranged at the explosion-proof valve hole; and a blocking member, sealing the electrolyte injection hole on the cell frame.

BATTERY

Resumen de: WO2026044490A1

Disclosed is a battery, comprising: a battery cell. The battery cell comprises a positive and negative electrode material layer and an insulating layer. One end of the positive and negative electrode material layer forms a positive electrode material terminal. A first spiral space gap is provided in the positive electrode material terminal, and a first conductive material structure is provided in the first spiral space gap. The other end of the positive and negative electrode material layer forms a negative electrode material terminal. A second spiral space gap is provided in the negative electrode material terminal, and a second conductive material structure is provided in the second spiral space gap. Since the first conductive material structure is provided in the first spiral space gap of the positive electrode material terminal, and the second conductive material structure is provided in the second spiral space gap of the negative electrode material terminal, gap spaces formed by inward flattening can be avoided, the stability of welding between tabs and the battery cell is ensured, and adverse factors such as high internal resistance, excessive self-discharge, open circuits, or failure to operate are less likely to occur in vibrating environments during later-stage use of the battery, thereby extending the service life of the battery.

HEAT EXCHANGE ASSEMBLY, BATTERY DEVICE, ELECTRIC APPARATUS, AND ENERGY STORAGE APPARATUS

Resumen de: WO2026044464A1

Embodiments of the present disclosure provide a heat exchange assembly, a battery device, an electric apparatus, and an energy storage apparatus. The battery device comprises a box assembly, a battery cell assembly, and the heat exchange assembly. The box assembly is internally provided with a first accommodating cavity. The battery cell assembly is arranged in the first accommodating cavity. The heat exchange assembly is arranged in the box assembly. The heat exchange assembly comprises at least two flexible members. The at least two flexible members are stacked, at least one medium flow channel is formed between the flexible members, the at least one medium flow channel is used for allowing a heat exchange medium to flow, and the heat exchange medium is used for exchanging heat with the battery cell assembly.

ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING THE SAME

Resumen de: US20260066488A1

An electrode assembly according to embodiments of the present disclosure includes a separator and an electrode wound with the separator therebetween. The electrode includes an electrode current collector including a coated region and an uncoated region, and an active material layer formed on the coated region of the electrode current collector. The uncoated region includes a tab region including protrusions that extend in a direction perpendicular to the winding direction of the electrode and parallel to the coated region. The tab region includes protrusions having different widths.

SEPARATOR FOR ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE INCLUDING THE SAME

Resumen de: US20260066474A1

A separator for an electrochemical device includes a porous polymer substrate; and a coating layer disposed on at least one surface of the porous polymer substrate and including inorganic particles. The porous polymer substrate has a porosity of about 50 vol % or more and 65 vol % or less, the porous polymer substrate includes a polymer having a melt index of about 0.0001 g/10 min or more and 0.01 g/10 min or less, and the coating layer has a porosity of about 40 vol % or more and 70 vol % or less.

Polyolefin-Based Microporous Membrane, Method for Manufacturing the Same, and Secondary Battery Including the Same

Resumen de: US20260066458A1

Provided are a polyolefin-based microporous membrane and methods for manufacturing the same, a separator comprising the polyolefin-based microporous membrane, and a secondary battery comprising the separator. The polyolefin-based microporous membrane or the separator comprising the same comprises a polyolefin, and has a gas permeability of about 2.5×10−5 Darcy or more, a shrinkage rate in the transverse direction (TD) at 120° C. of about 10% or less, and a BDV index of about 15 or more as represented by the following Equation 1:BDV⁢index⁢=((P2+M4)D×d×ε)×1⁢0⁢0Equation⁢1wherein the variables are defined as follows: P: puncture strength (N/μm) of the polyolefin-based microporous membrane; M: viscosity average molecular weight (×105 g/mol) of polyolefin; D: gas permeability (×10−5 Darcy) of the polyolefin-based microporous membrane; d: average pore size (nm) of the polyolefin-based microporous membrane; and ε: porosity of the polyolefin-based microporous membrane.)

BATTERY PACK AND VEHICLE INCLUDING SAME

Resumen de: US20260066452A1

A battery pack according to an embodiment of the present disclosure may include: a plurality of battery cells; a pack case configured to accommodate the plurality of battery cells and having a venting portion configured to discharge gas generated from the battery cells to the outside; and a protective cover configured to cover at least a portion of the venting portion.

SECONDARY BATTERY

Resumen de: US20260066465A1

A secondary battery includes an electrode stack having a separator, the separator having a first, second and third separator regions, a first negative electrode plate between the first separator region and the second separator region, a first positive electrode plate between the second separator region and the third separator region, an insulating tape on a periphery of the electrode stack, a case receiving the electrode stack and the insulating tape, and a first separator piece between the first negative electrode plate and the second separator region.

ELECTROLYTE, ELECTROCHEMICAL APPARATUS, AND ELECTRONIC APPARATUS

Resumen de: 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%.

ELECTROLYTE, ELECTROCHEMICAL APPARATUS, AND ELECTRONIC DEVICE

Resumen de: 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%.

AEROSOL-GENERATING SYSTEM WITH ADHESIVE BETWEEN ELECTRODE UNIT AND ENVELOPE

Nº publicación: US20260066404A1 05/03/2026

Solicitante:

PHILIP MORRIS PRODUCTS S A [CH]
Philip Morris Products S.A

Resumen de: 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.