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LITHIUM METAL BATTERY, NEGATIVE ELECTRODE CURRENT COLLECTOR, AND ELECTRIC DEVICE

Resumen de: WO2026218798A1

Provided are a lithium metal battery, a negative electrode current collector, and an electric device. The lithium metal battery comprises a negative electrode sheet. The negative electrode sheet comprises a negative electrode current collector. The negative electrode current collector comprises a current collector body and a coating applied to at least one side surface of the current collector body. The coating comprises a carbon material. The resistivity of the carbon material is greater than or equal to 0.1 Ω·m. The lithium metal battery has good cycle performance.

POSITIVE ELECTRODE MATERIAL PRECURSOR, POSITIVE ELECTRODE MATERIAL, POSITIVE ELECTRODE SHEET, BATTERY, AND ELECTRICAL DEVICE

Resumen de: WO2026219083A1

Provided in the present application are a positive electrode material precursor, a positive electrode material, a positive electrode sheet, a battery, and an electrical device. The positive electrode material precursor comprises NaxFeyPzOm, where 0.60 ≤ y/z ≤ 0.90, 0 < x/z ≤ 0.75, and m satisfies that NaxFeyPzOm is electrically neutral. The positive electrode material precursor provided in the present application defines the iron-to-phosphorus ratio and sodium-to-phosphorus ratio, which reduces the difficulty of element diffusion when synthesizing sodium iron phosphate pyrophosphate, facilitates reducing or eliminating the formation of iron-rich or iron-deficient impurity phases in the process of synthesizing sodium iron phosphate pyrophosphate, improves the purity of sodium iron phosphate pyrophosphate, and thus increases the charge-discharge specific capacity of batteries.

COMPRESSION PAD FOR A BATTERY UNIT, BATTERY CELL, BATTERY UNIT AND VEHICLE

Resumen de: WO2026221533A1

The invention relates to A compression pad (1) for a battery unit (50), the compression pad (1) is gas-tight and comprises at least one gas chamber (2), the at least one gas chamber (2) being filled with at least one gas (4), and the gas chamber (2) of the compression pad (1) comprises at least one adsorption material (6) provided for adsorption of the at least one gas (4) of the compression pad (1). Besides, the invention relates to a battery cell (52), a battery unit (50) and a vehicle (100).

COMPOSITION COMPRISING A SODIUM SALT OF 4,5-DICYANO-2-(TRIFLUOROMETHYL)IMIDAZOLE AND PREPARATION PROCESS

Resumen de: WO2026219781A1

The invention relates to a composition comprising a sodium salt of 4,5-dicyano-2-(trifluoromethyl)imidazole (TDI) of formula (1) comprising an amount of non-cyclized products of formula (1a) and (1b) less than or equal to 100 ppm by weight, as well as a preparation process.

LITHIUM-ION ELECTROCHEMICAL ELEMENT COMPRISING A POSITIVE ELECTRODE BASED ON LITHIATED VANADIUM FLUOROPHOSPHATE

Resumen de: WO2026219837A1

An electrochemical element comprising: - at least one positive electrode comprising a positive active material which is a lithiated vanadium fluorophosphate and/or one of the derivatives thereof, - at least one negative electrode comprising a mixture of negative active materials comprising: from 5 to 99% by weight of a niobium oxide having a Wadsley-Roth crystallographic structure, and from 95 to 1% by weight of at least one lithiated titanium oxide and/or a titanium oxide capable of being lithiated. The mixture of negative active materials makes it possible to improve the accuracy of the determination of the state of charge of the electrochemical element.

TERMINAL ASSEMBLY, BATTERY PACK, AND ELECTRIC POWER TOOL SYSTEM

Resumen de: AU2026200478A1

The provided is a terminal assembly, a battery pack, and an electric power tool system. The terminal assembly includes: a plurality of terminals, where each of the terminals is configured to be electrically connected to a contact matched with the terminal; at least one of the terminals includes a first member and a second member; the first member is configured to conduct a current; the second member is configured to apply a pressure to the first member; a ratio of a thickness of the first member to a thickness of the second member is greater than or equal to 0.1 and less than or equal to 20; the first member provides a surface-to-surface contact region for the contact; and in the contact region, the first member and the contact mate with each other. an a n 11 a a an a n a 1 a

NEGATIVE ELECTRODE AND SOLID-STATE LITHIUM SECONDARY BATTERY

Resumen de: US20260331461A1

Provided is a negative electrode for a solid-state lithium secondary battery. The negative electrode includes a negative electrode mixture layer containing a negative electrode active material and a first solid electrolyte. The negative electrode active material contains silicon and is covered with a covering layer. The covering layer contains a second solid electrolyte and a polymer.

BATTERY CELL, BATTERY APPARATUS, AND ELECTRIC APPARATUS

Resumen de: US20260331732A1

0000 The present disclosure relates to a battery cell, a battery apparatus, and an electric apparatus. The battery cell comprises a housing, an end cover, a support member, and at least one electrode assembly. The housing accommodates an electrolyte and includes a first wall, and the end cover is disposed to cover an opening of the housing. At least part of the electrode assembly is received within the housing. The electrode assembly includes a first electrode plate and has a first end surface facing the first wall, with an end portion of the first electrode plate disposed facing the first end surface. At least part of the support member is located between the first end surface and the first wall and is in contact with the first end surface. The support member is provided with at least one accommodating groove having a first opening facing the first end surface.

BATTERY PACK AND VEHICLE

Resumen de: US20260331625A1

A battery pack includes at least one battery module and a cooler disposed above the at least one battery module. The at least one battery module includes a plurality of pouch-type battery cells and a module casing supporting the plurality of pouch-type battery cells from below, an upper part of the module casing being open.

Aerogel Composite

Resumen de: US20260327083A1

0000 An aerogel composite which maintains a high degree of hydrophobicity, and also an excellent level of heat insulation properties even when exposed to a high-temperature environment.

ELECTRODE SLURRY FOR SECONDARY BATTERY

Resumen de: AU2024443291A1

An electrode slurry comprising a binder material, an electrode active material and a solvent is disclosed, wherein the solvent is not water. The binder material comprises a water-compatible copolymer, wherein the copolymer comprises a structural unit (a) derived from an acid group-containing monomer; a structural unit (b) derived from an amide group-containing monomer; and a structural unit (c) derived from a monomer selected from the group consisting of a nitrile group-containing monomer, an ether group-containing monomer, an epoxy group-containing monomer, a carbonyl group-containing monomer, and combinations thereof. Batteries comprising electrodes manufactured using the electrode slurry disclosed herein were found to have performances comparable to those manufactured using PVDF, but electrodes manufactured using the electrode slurry disclosed herein could be recycled using a water-based method that is more environmentally-friendly.

ENERGY STORAGE MODULE AND ENERGY STORAGE DEVICE

Resumen de: WO2026219786A1

The present invention relates to an energy storage module (100), in particular a battery module, comprising a housing (102), a fluid inlet (116) into the housing, a fluid outlet (118) out of the housing, a fluid distribution channel (152) which is connected to the fluid inlet (116), a fluid collection channel (154) which is connected to the fluid outlet (118), a plurality of energy storage elements (106) and at least one temperature control chamber (124) in which the energy storage elements (106) extend at least partially, - wherein the energy storage elements (106) are arranged in a regular arrangement (130) which has a plurality of gaps (132) in an edge region (134) facing the fluid distribution channel (152), and/or in an edge region (134) facing the fluid collection channel (154), - wherein the fluid distribution channel (152) has one or more projections (160) which extend at least partially into the gaps (132), and the fluid distribution channel (152) has one or more fluid inlet openings (156) which are arranged in or on the projection(s) (160), and/or - wherein the fluid collection channel (154) has one or more projections (160) which extend at least partially into the gaps (132), and the fluid collection channel (154) has one or more fluid outlet openings (157) which are arranged in or on the projection(s) (160). The present invention also relates to an energy storage device having at least one energy storage module (100).

ELECTROLYTE FOR A LITHIUM METAL BATTERY, AND A LITHIUM METAL BATTERY INCLUDING THE SAME

Resumen de: US20260331600A1

An electrolyte for a lithium metal battery includes a lithium salt, and a non-aqueous organic solvent. The non-aqueous organic solvent includes a main solvent and a co-solvent. The main solvent includes N,N-dimethylsulfamoyl fluoride, ethylene carbonate, diethyl carbonate, dimethyl carbonate, ethylmethyl carbonate, 1,2-dimethoxyether, dipropyl ether, cyclic sulfonamide, or any combination thereof. The co-solvent is represented by Chemical Formula 1, and the co-solvent is included in an amount exceeding 1 mol % based on a total amount (100 mol %) of the non-aqueous organic solvent.In Chemical Formula 1, each substituent is the same as defined in the detailed description.

SECONDARY BATTERY AND BATTERY ASSEMBLY

Resumen de: US20260331731A1

0000 A first surface of an exterior container has a substantially rectangular shape including a pair of first end sides each extending in a first direction and a pair of second end sides each extending in a second direction substantially orthogonal to the first direction. An insulating member is provided in a vicinity of at least one of the pair of first end sides, has a first region extending in a form of a strip in the first direction, and has a second region located on a center side of the insulating member with respect to the first region in the second direction. A thickness of the insulating member in the first region is larger than a thickness of the insulating member in the second region.

LITHIUM-ION ELECTROCHEMICAL ELEMENT

Resumen de: WO2026219871A1

The invention relates to an electrochemical element comprising: - at least one positive electrode comprising a positive active material chosen from: a) a lithiated vanadium fluorophosphate of formula Li1+xVPO4F (LVPF) where 0≤x≤1 and/or one of the derivatives thereof; b) a lithiated manganese iron phosphate; c) a mixture of a plurality of compounds of groups a) and b); - at least one negative electrode comprising a negative active material which is a niobium oxide of Wadsley-Roth type crystallographic structure of formula NbaTibMcOd where 2≤a; 0≤b<0.5; 0≤c; 5≤d and 2.2≤(d/(a+b+c))≤2.8; where b=0 if c=0; M being selected from the group consisting of Ca, Fe, La, Zn, Cr, W, Ag, Mo, Ni, Cu, V and mixtures thereof. The electrochemical element has improved mass energy and cycle life.

ALL-SOLID-STATE BATTERY

Resumen de: US20260331572A1

There is provided an all-solid-state battery including a positive electrode layer, a solid electrolyte layer, and a negative electrode layer, wherein the solid electrolyte layer contains solid electrolyte particles having a particle size of 1 μm or less at least at an end in a direction perpendicular to the direction in which the positive electrode layer, the solid electrolyte layer and the negative electrode layer are laminated, and the solid electrolyte layer has a density of 1.90 g/cm3 or more at least at the end in the direction perpendicular to the lamination direction.

BATTERY AND METHOD OF PRODUCING BATTERY

Resumen de: US20260331591A1

The battery of the present disclosure includes a first unit battery and a second unit battery. The first unit battery and the second unit battery are stacked in the order of the first unit battery and the second unit battery along the stacking direction. The first element serving as the carrier ion of the first unit battery is different from the second element serving as the carrier ion of the second unit battery.

RECHARGEABLE BATTERY

Resumen de: US20260331559A1

0000 A rechargeable battery includes a cell case, an electrode body, and an elastic member. The cell case has two opposing side walls. The electrode body is accommodated in the cell case and is disposed between the two opposing side walls. The electrode body is formed by stacking a cathode plate and an anode plate with a separator arranged in between and rolling the stack. The elastic member is disposed between the electrode body and at least one of the two opposing side walls. The elastic member includes a close-contact portion and projections. The close-contact portion is in close contact with the electrode body. The projections project from the close-contact portion toward the at least one of the two opposing side walls. The projections are each tapered.

MODULAR POWER SOURCE AND SYSTEMS

Resumen de: US20260331934A1

0000 Modular power sources and systems are provided. The modular power source includes a housing, a power module configured for providing a variable output of power, and at least one modular battery unit. The housing includes a frame constructed of powder-coated steel to create at least one level; two heavy-duty casters attached at a first end of the frame; two airless tires attached at a second end of the frame; a cooling vent system; a hinged access panel; and a push handle. The power module includes an AC charging input; and a plurality of AC power outputs. A power supply system includes an equipment configured to receive electrical power; and a modular power source configured to provide electrical power to the equipment.

BATTERY UNIT AND METHODS FOR MANUFACTURING THE SAME

Resumen de: WO2026222105A1

An electrode-separator assembly includes: an electrode assembly; and a separator. The electrode assembly includes: a conductive substrate coated with electrode material; a first face; a second face opposite the first face; a first end defining a first serrated geometry; a second end opposite the first end and defining a second serrated geometry; a first side extending between the first end and the second end; and a second side opposite the first side. The separator includes a conformal separator coating and extends continuously: across the first face and the second face of the first electrode assembly; around the first side and the second side of the first electrode assembly; and around proximal resected regions on the first end and the second end of the first electrode assembly.

SURFACE-MODIFIED SILICON ANODE PARTICLES, IMIDAZOLE-FUNCTIONALIZED POLYMER BINDERS, AND ELECTRODES FOR FAST-CHARGING LITHIUM-ION BATTERIES

Resumen de: WO2026222074A1

Compositions and methods are disclosed for fast-charging silicon-based lithium-ion batteries meeting the energy density and cycle life requirements of unmanned aerial systems and other high-performance applications. Three classes of Si/SiOx anode particle surface modification are provided: organosilylation using silylating reagents including hexamethyldisilazane to yield organosiloxy Si–O–Si(CH₃)₃ surface groups; phosphorylation with phosphoric acid, polyphosphoric acid, or phosphonate reagents including DTPMP to yield surface organophosphate ester groups; and direct surface grafting with poly(vinyl methyl ether-altmaleic anhydride) (PVME-MA) via anhydride ring-opening reaction with surface silanol groups to form covalent Si–O–CO– ester bonds, confirmed by acid value titration. Polymer binder compositions include PVME-MA functionalized with 1-(3-aminopropyl)imidazole (PVME-MAIm) yielding amic acid and imide linkages with pendant imidazole groups; imidazole-modified polyacrylic acid; aziridine-crosslinked polyacrylic acid; PEG diglycidyl ether-crosslinked polyacrylic acid; and polybenzimidazole-containing polyacrylic acid. All binder compositions are electrochemically stable at 4.5 V or above versus Li/Li⁺. Electrode compositions combining PVME-MA surface-grafted Si/SiOx particles with PVME-MA-Im binder provide an integrated active material–binder system in which the same polymer backbone serves dual roles through selective sequential reactivity with surface

POSITIVE ELECTRODE PLATE, METHOD OF PRODUCING THE SAME, AND METHOD OF PRODUCING SLURRY

Resumen de: US20260331519A1

A positive electrode plate comprises a metal layer, an active material layer containing a positive electrode active material, and a protective layer. The active material layer and the protective layer are formed on the metal layer and positioned adjacent to each other in a plan view of the positive electrode plate. The protective layer contains an inorganic oxide filler and polyvinylidene difluoride. The polyvinylidene difluoride is an unmodified homopolymer having a weight average molecular weight of 750,000 or more, and a content of the polyvinylidene difluoride in the protective layer is 13.5 weight % or more. The number of lumps in the protective layer is 0.50/cm2 or less.

SECONDARY BATTERY AND BATTERY ASSEMBLY

Resumen de: US20260331708A1

A spacer has a pair of first portions located on both end sides of the spacer in the second direction and a second portion located between the pair of first portions in a second direction, a flat surface of the spacer is formed continuously from one of the pair of first portions to the other of the pair of first portions, and at least a portion of each of the pair of first portions in a first direction has a larger thickness than a thickness of the second portion in a direction orthogonal to the flat surface.

METHOD OF PREDICTING THERMAL RUNAWAY

Resumen de: US20260326572A1

The present disclosure relates to a method of providing an early warning of thermal runaway in a battery cell, the method comprising: monitoring, over time, a temperature of the battery cell; monitoring, over time, a real part of an impedance of the battery cell for a plurality of test signal frequencies by: applying a plurality of test signals to the battery cell at each of a plurality of discrete time intervals, each of the plurality of test signals having a corresponding one of the plurality of test signal frequencies; and determining, for each applied test signal, the real part of the impedance of the battery cell; determining, over time, whether the temperature of the battery cell is increasing; determining, over time, whether the real parts of the impedances corresponding to the plurality of test signal frequencies have converged; and providing a first warning if the real parts of the impedances at the plurality of test signal frequencies have converged and the temperature has been increasing for a first predetermined number of the discrete time intervals.

Battery Module

Nº publicación: US20260331605A1 22/10/2026

Solicitante:

SK ON CO LTD [KR]
SK On Co., Ltd.

Resumen de: US20260331605A1

A battery module includes a plurality of battery cells, and a Battery Management System (BMS) module connected to at least one of the plurality of battery cells. The BMS module includes a substrate, a plurality of electrical components mounted on one surface of the substrate, and a cooling element disposed on the other surface, opposite to the one surface, and cooling at least a portion of the other surface.