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SEPARATOR FOR SECONDARY BATTERIES AND SECONDARY BATTERIES INCLUDING THE SAME

Resumen de: US20260106322A1

The present disclosure provides a separator for a secondary battery which is formed of a porous sheet which includes a binder polymer and boron nitride nanotubes to show excellent electrical insulation, thermal stability, mechanical strength, and reduced weight and contribute to compactness of the secondary battery.

PROCESSES AND METHODS FOR PRODUCTION OF CRYSTALLIZED METAL SULFATES

Resumen de: US20260103396A1

0000 A process and method for producing a crystallized metal sulfate. The crystallized metal sulfate may be battery-grade. The method may comprise receiving a metal ion-containing stream and crystalizing a metal sulfate from the stream. The process may comprise receiving a stream from a metal processing plant, and crystalizing a metal sulfate from the stream. The process may be a metal electrowinning process comprising crystalizing a metal ion-containing stream to form a crystallized metal sulfate in a mother liquor. The process or method may comprise returning the mother liquor upstream or to the metal electrowinning process.

INSPECTION OF BINDERS AND SLURRY MIXTURES FOR USE IN BATTERY FABRICATION BASED ON ACOUSTIC SIGNAL ANALYSIS

Resumen de: US20260106200A1

Systems, techniques, and computer-implemented processes for acoustic signal based improvements to one or more process steps in the manufacture of battery cells. Information gathered based on an acoustic signal based analysis in one process step can be used in one or more other process steps using any suitable combination of feedback and/or feedforward of the acoustic signal based analysis. Such feedback and/or feedforward can improve the overall quality of battery cells produced using the manufacturing process, efficiency/cost of the manufacturing process, improvement in yield/reduction in wastage of the battery cells produced using the manufacturing process and/or improvements in individual process steps.

Materials and Methods of Producing Lithium Cobalt Oxide Materials of A Battery Cell

Resumen de: US20260103395A1

Various lithium cobalt oxides materials having a chemical formula of Lix Coy Oz, and method and apparatus of producing the various lithium cobalt oxides materials are provided. The method includes adjusting a molar ratio MLiSalt:MCoSalt of a lithium-containing salt, and a cobalt-containing salt within a liquid mixture to be equivalent to a ratio of x:y, drying a mist of the liquid mixture in the presence of a gas to form a gas-solid mixture, separating the gas-solid mixture into one or more solid particles of an oxide material, and annealing the solid particles of the oxide material in the presence of another gas flow to obtain crystalized particles of the lithium cobalt oxide material. The process system has a mist generator, a drying chamber, one or more gas-solid separator, and one or more reactors.

Battery Caddy Having Magnetic Retaining Feature

Resumen de: US20260106302A1

A battery holding and dispensing device can hold a plurality of batteries, in a single battery size or an assortment of battery sizes. The battery holding and dispensing device includes a frame having a plurality of compartments sized and shaped to each receive a battery of a particular battery size and each having a magnetic insert for releasably retaining the battery in the compartment. A system is disclosed for inductive charging of batteries held in a caddy.

Battery Management Apparatus and Method

Resumen de: US20260106240A1

A battery management apparatus includes: a profile generating unit configured to obtain a battery profile representing a correspondence between voltage and capacity of a battery and generate a differential profile representing a correspondence between a differential voltage for the capacity of the battery and the capacity or a correspondence between a differential capacity for the voltage of the battery and the voltage based on the obtained battery profile; and a control unit configured to receive the generated differential profile from the profile generating unit, determine a target peak included in the received differential profile according to a rule corresponding to a type of the received differential profile, and determine a state of the battery based on a behavior change of the target peak with respect to a reference peak preset to correspond to the type of the received differential profile.

IMPROVED MULTILAYER POROUS MEMBRANES AND METHODS OF MAKING THE SAME

Resumen de: US20260102994A1

A multilayer membrane comprising at least two co-extruded layers where the two co-extruded layer contain different polymers and one of the two co-extruded layers contains an extrusion additive. Examples of useful extrusion additives may include a nucleating agent or a pore-forming particulate. A method for making the membrane is also disclosed. Using an extrusion additive when co-extruding two different polymers avoids some of the drawbacks associated with processes involving the co-extrusion of different polymers, particularly processes where a co-extruded non-porous precursor is later stretched to form pores. For example, the drawback of lower permeability, difficulty to make lower Gurley, and splittiness may be improved.

POWER RECEIVING APPARATUS, BATTERY UNIT, ELECTRIC POWER UNIT, AND WORK MACHINE

Resumen de: US20260106234A1

0000 One aspect of an invention is a power receiving apparatus, configured to be able to receive electric power from a plurality of battery units each including a processor configured to control a power feeding function, the power receiving apparatus comprising a plurality of connection portions capable of electrically connecting the plurality of battery units, wherein the plurality of connection portions are configured such that voltages supplied to the plurality of processors of the plurality of battery units have different values when the plurality of battery units are electrically connected to the connection portions

POSITIVE CURRENT COLLECTOR, POSITIVE ELECTRODE PLATE, ELECTROCHEMICAL APPARATUS, BATTERY MODULE, BATTERY PACK, AND DEVICE

Resumen de: US20260106171A1

0000 This application discloses a positive current collector, a positive electrode plate, an electrochemical apparatus, a battery module, a battery pack, and a device. The positive current collector includes a support layer, having two opposite surfaces in a thickness direction of the support layer; and an aluminum-based conductive layer, disposed on at least one of the two surfaces of the support layer. A thickness D<1 >of the aluminum-based conductive layer is 300 nm≤D<1>≤2 μm; a density of the aluminum-based conductive layer is 2.5 g/cm<3 >to 2.8 g/cm<3>; and when a tensile strain of the positive current collector is 2.5%, a sheet resistance growth rate T of the aluminum-based conductive layer is T≤10%. The positive current collector provided in this application has a relatively small weight and higher electrical performance, so that the electrochemical apparatus provides a higher weight energy density and higher electrochemical performance.

NETWORK OF METAL FIBERS, METHOD FOR PRODUCING A NETWORK OF METAL FIBERS, ELECTRODE AND BATTERY

Resumen de: US20260106206A1

0000 A network of metal fibers includes a plurality of metal fibers fixed to one another; wherein at least some of the plurality of metal fibers have a length of 1.0 mm or more, a width of 100 μm or less and a thickness of 50 μm or less. A method includes producing a plurality of metal fibers by melt spinning; providing a loose network of metal fibers; and fixating the plurality of metal fibers to one another.

GLYCIDYL-CONTAINING POLYMERS, POLYMER COMPOSITIONS COMPRISING THEM AND THEIR USE IN ELECTROCHEMICAL CELLS

Resumen de: US20260103555A1

0000 Glycidyl-containing polymers and polymer compositions comprising them are described, as well as their use in electrode materials and/or as coatings for battery components. Also described are electrode materials, electrodes, electrochemical cells and batteries comprising the polymers and their uses.

ELECTRONIC DEVICE

Resumen de: US20260104740A1

0000 A highly convenient electronic device used while being worn on a body is provided. The electronic device is an arm-worn electronic device including a display panel, a power storage device, a circuit, and a sealing structure. The display panel displays an image with power supplied from the power storage device. The circuit includes an antenna and charges the power storage device wirelessly. Inside the sealing structure, the display panel, the power storage device, and the circuit are provided. The sealing structure includes a portion that transmits visible light. The sealing structure can be worn on an arm or is connected to a structure body that can be worn on an arm.

SINGLE-CRYSTALLINE LOW-COBALT TERNARY MATERIAL, METHOD FOR PREPARING SAME, SECONDARY BATTERY, BATTERY PACK, AND POWER CONSUMPTION APPARATUS

Resumen de: US20260106146A1

A single-crystalline-structured low-cobalt ternary positive material, a chemical formula thereof is Li1+x(NiaCObMnc)1-dMdO2-yAy, where a mole fraction of Co element is low, 0.05≤b≤0.14; and in a single particle, a ratio of an average Co content per unit area of an outer layer to an average Co content per unit area of an inner core in a cross section passing through a geometric center of the particle is in a range 1.2-5.0:1, optionally, in a range 1.4-2.0:1 is disclosed. The material has better structural stability and dynamic performance at low temperature and high voltage, which improves cycle performance and power performance of the secondary battery at low temperature and high voltage. A method for preparing the low-cobalt ternary positive material, a secondary battery, a battery module, a battery pack, and a power consumption apparatus including the material is also disclosed

HYBRID GRAPHENE COMPOSITE PARTICLES

Resumen de: US20260103383A1

0000 Provided is hybrid graphene composite particles comprising: a graphene composite in which a plurality of primary microparticles and multilayer graphene are mixed; and secondary microparticles encompassed by or coated with the graphene composite, wherein the primary microparticles are bound to the surface or the inside of the multilayer graphene, and some empty spaces between the primary microparticles are filled with the graphene composite such that a connected structure is formed.

SECONDARY BATTERY

Resumen de: US20260106349A1

A secondary battery includes: an electrode assembly including a first electrode plate, a second electrode plate, and a separator; a case having an opened upper end; a cap plate to seal the upper end of the case; a first electrode terminal on the cap plate, and electrically connected to the first electrode plate; an insulating member between the cap plate and the first electrode terminal; a second electrode terminal on the cap plate, and electrically connected to the second electrode plate; and an electrical connection member between the cap plate and the second electrode terminal to allow electrical conduction between the cap plate and the second electrode terminal, the electrical connection member being in local contact with at least one of the cap plate or the second electrode terminal, and including a material having a higher resistance than those of the cap plate and the second electrode terminal.

BATTERY

Resumen de: WO2026077178A1

A battery, comprising a casing and a cylindrical jelly roll (1), wherein the casing comprises a terminal assembly, and the cylindrical jelly roll (1) comprises a jelly roll hole (3) and an electrode plate (2); the electrode plate (2) comprises an electrode plate body and a plurality of tabs; the tabs are configured to be electrically connected to the terminal assembly and/or the casing; the electrode plate (2) comprises a wound leading end, and the tabs include a first tab (7); and in the direction of length of the unwound electrode plate (2), the distance between the first tab (7) and the wound leading end is D1, the area of the jelly roll hole (3) is S, and D1/S falls within the range from 3 to 45. By comprehensively adjusting the distance D1 and the area of the jelly roll hole (3), folded-over tabs can be prevented from covering the jelly roll hole (3).

High Structure Acetylene Black, Process for its Production, and Compositions and Uses Thereof

Resumen de: US20260103600A1

0000 A high structure acetylene black having an oil absorption number (OAN) of 360 mL/100 g or more and a BET surface area in a range from 50 to 200 m2/g is provided. Such high structure carbon black exhibits excellent electrical conductivity and good processing properties. e.g. dispersibility, having superior power to impart electrical and/or thermal conductivity to various materials, rendering it particularly useful for all kinds of applications where high electrical and/or thermal conductivity is desired or beneficial, such as manufacture of electrodes and other components of energy storage and/or conversion devices or electrically and/or heat conductive materials and articles made thereof.

SULFIDE SOLID ELECTROLYTE POWDER, SOLID ELECTROLYTE LAYER, AND LITHIUM ION SECONDARY BATTERY

Resumen de: US20260106216A1

A sulfide solid electrolyte powder includes, in content in a mass basis: less than 50 ppm of Al; and less than 50 ppm of Zr. A particle diameter D50 is less than 1 μm. A BET diameter calculated based on a BET specific surface area may be 0.10 μm to 0.30 μm.

METHOD FOR PRODUCING A MATERIAL OR A COMPONENT FOR A SOLID-STATE BATTERY

Resumen de: US20260106226A1

The invention relates to a method for producing a material for a solid-state battery and/or a component for a solid-state battery, as well as a solid-state battery cell. In the method for producing a material (10) for a solid-state battery (30) and/or a component (20) for a solid-state battery (30), at least one starting material (1) together with a sodium source (2) and H3BO3 is heated (5) to a temperature between 600° C. and 1300° C. The material and/or component can be produced at a significantly lower temperature.

CYLINDRICAL BATTERY COVER PLATE ASSEMBLY AND BATTERY

Resumen de: WO2026077240A1

The present application relates to the technical field of new energy batteries, and discloses a cylindrical battery cover plate assembly and a battery. A tab connection region of the cylindrical battery cover plate assembly has good heat dissipation performance, thereby reducing the problem of heat concentration and prolonging the service life of the battery. In addition, the overcurrent capability of the tab connection region can be ensured, thereby improving the performance of the battery. The cylindrical battery cover plate assembly of the present application is applied to a battery. The battery comprises a battery cell. The battery cell comprises a tab, the tab comprising a positive tab and a negative tab, and the positive tab and the negative tab being provided on the same side of the battery cell. The cylindrical battery cover plate assembly comprises an electrode post and a current collector. The current collector comprises a tab connection region and an electrode post connection region. The tab connection region is connected to the tab, and the electrode post connection region is connected to the electrode post, so as to implement an electrical connection between the tab and the electrode post. The thickness of the electrode post connection region is a, the thickness of the tab connection region is b, and the ratio of the thickness b to the thickness a satisfies 0.2≤b/a<1.

BATTERY DEVICE

Resumen de: WO2026077204A1

The present application provides a battery device, comprising a battery compartment. The battery compartment comprises a bottom plate and an enclosing frame provided at the edge of the bottom plate; the bottom plate and the enclosing frame define an accommodating space for accommodating batteries; the bottom plate is used for supporting the batteries; the battery compartment is of an elongated structure and has a length direction and a width direction; and the ratio of the length to the width of the battery compartment is within a range of 2.1 to 3.5. The battery device further comprises reinforcing beams; the reinforcing beams are fixedly connected to the bottom plate; the reinforcing beams are used for connecting the battery compartment to a vehicle frame; the reinforcing beams are located above the vehicle frame; and the bottom plate is located above the vehicle frame. By providing the reinforcing beams, the vehicle frame can support the battery compartment from below, thereby preventing the bottom plate from sagging downward due to excessive weight of the batteries in the battery compartment.

BATTERY AND BATTERY MODULE

Resumen de: WO2026077177A1

The present application relates to the technical field of batteries, and discloses a battery and a battery module. The battery comprises: a casing, at least one end of the casing having an opening; and a cover plate covering the opening of the casing. The edge of the cover plate facing the inner side of the casing is provided with a chamfer, so that the lower side of the cover plate can decrease in size towards the casing, and the chamfer is at least partially embedded into the interior of the casing. The height of the chamfer in the thickness direction of the cover plate is a1, the thickness of the cover plate is a2, and the ratio of a1 to a2 is a; and the Vickers hardness of the casing is b, with units of hv, and 0.0005≤a/b≤0.014. The present application solves the problem of difficulty in assembling the casing and the cover plate, or the problem of a gap generated due to excessive deformation of the cover plate or the casing during assembly.

CORE CELL STACK ASSEMBLY AND STACKING METHOD THEREFOR, AND BATTERY

Resumen de: US20260106326A1

0000 Provided are a core cell stack assembly and a stacking method therefor, and a battery. The core cell stack assembly includes a positive electrode sheet, a negative electrode sheet, and a separator located between the positive electrode sheet and the negative electrode sheet in a thickness direction of the core cell stack assembly. An edge of the separator is flush with an edge of the negative electrode sheet and extends beyond an edge of the positive electrode sheet on at least one end of each of the positive electrode sheet, the negative electrode sheet, and the separator.

POLYACRYLIC ACID BINDER AND PREPARATION METHOD THEREFOR, AND LITHIUM-ION BATTERY

Resumen de: WO2026076760A1

The present application relates to the technical field of new energy, and particularly relates to a polyacrylic acid binder and a preparation method therefor, and a lithium-ion battery. The preparation method for a polyacrylic acid powder binder comprises the following steps: mixing a polymerizable monomer and an initiator, and performing a polymerization reaction thereon to prepare a polyacrylic acid copolymer; and in the presence of an alcohol solvent, performing a neutralization treatment on the polyacrylic acid copolymer at a temperature not exceeding 60°C, so as to obtain a polyacrylic acid powder binder.

CARBON NANOTUBE DISPERSION AND PREPARATION METHOD THEREOF

Nº publicación: US20260103382A1 16/04/2026

Solicitante:

LG CHEMICAL LTD [KR]

Resumen de: US20260103382A1

0000 The present invention relates to a carbon nanotube dispersion and a preparation method thereof, wherein the carbon nanotube dispersion includes carbon nanotubes, a first dispersant which is carboxyalkyl cellulose having a weight average molecular weight of 9,000 g/mol or less, a second dispersant which is polyvinyl butyral (PVB), and a solvent, and the carbon nanotube dispersion of the present invention has a low initial viscosity and a low viscosity change rate, and thus, is excellent in storage stability and processability.