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SEPARATOR, BATTERY CELL, BATTERY AND ELECTRICAL APPARATUS

Resumen de: US20260246079A1

0000 Provided in the present application are a separator, a battery cell, a battery and an electrical apparatus. The separator includes a separator body and a polymer layer disposed on at least one surface of the separator body, wherein the polymer layer includes a fluoropolymer, the crystallinity of the fluoropolymer as measured by using a differential scanning calorimetry method is X%, where 0≤30; and the melting temperature of the fluoropolymer is T, the unit thereof being ° C., where 0≤140.

All-Solid-State Battery and Method for Manufacturing All-Solid-State Battery

Resumen de: US20260245970A1

0000 This all-solid-state battery comprises: a positive electrode layer; a solid electrolyte layer; a negative electrode layer; and an insulating layer disposed along the outer peripheral section of the positive electrode layer. The positive electrode layer has a first side to which a positive electrode layer inclined section is provided. In the positive electrode layer inclined section, the positive electrode layer is inclined so that the thickness thereof gradually decreases toward the outside. The insulating layer has an insulating layer inclined section at a portion where the positive electrode layer inclined section is interposed. In the insulating layer inclined section, the insulating layer is inclined so that the thickness thereof gradually decreases in the same direction as the positive electrode layer inclined section.

CARBON MATERIAL, METHOD FOR PREPARING CARBON MATERIAL

Resumen de: US20260245901A1

0000 The present application provides a carbon material, a method for preparing the same, and a secondary battery and an electrical device comprising the same. The carbon material includes an external region and an internal region disposed on the inside of the external region, the external region being a region formed by extending for a distance of 0.25L from the surface of the particles of the carbon material towards the interior of the particles, L being a short-axis length of the particles of the carbon material; total pore area of the external region being denoted as S<1 >and total pore area of the internal region being denoted as S<2>, and S<2>>S<1>. The carbon material provided in the present application can make the secondary battery have high initial columbic efficiency, high energy density and good cycling performance.

LITHIUM RECOVERY FROM SLAGS

Resumen de: US20260242895A1

0000 A Li recovery process comprises the steps of powdering the metallurgical slag to a particle size distribution having a D50 of less than 100 μm; contacting, in an aqueous medium, the Li-containing metallurgical slag, and an alkaline Ca-compound, provided in amounts selected to obtain a molar ratio of the Ca in the Ca-compound to Li in the slag of at least 0.75, thereby obtaining a suspension; heating the suspension to a temperature of more than 80° C. for at least 30 min, thereby obtaining a leached suspension; and, separating solids from liquids in the leached suspension, thereby obtaining a leach solution containing a major part of the Li, and a solid residue containing Ca. This alkaline leaching process allows for a straightforward recovery of battery-grade LiOH from the leach solution, while consuming fewer reagents than known acidic leaching processes.

POSITIVE ELECTRODE LAYER FOR ALL-SOLID-STATE RECHARGEABLE BATTERY, MANUFACTURING METHOD OF THE SAME, AND ALL-SOLID-STATE RECHARGEABLE BATTERY INCLUDING THE SAME

Resumen de: US20260245910A1

0000 Disclosed are a positive electrode layer for an all-solid-state rechargeable battery, a method of manufacturing the same, and an all-solid-state rechargeable battery including the same. In an embodiment, the positive electrode layer for an all-solid-state rechargeable battery includes a positive electrode current collector; and a positive electrode active material layer located on the positive electrode current collector and including a solid electrolyte composite and a positive electrode active material; wherein the solid electrolyte composite includes a core including diamagnetic particles having an aspect ratio represented by Equation 1 of greater than 1; and a shell surrounding the core and including a solid electrolyte.

BATTERY AND METHOD FOR PRODUCING SAME

Resumen de: US20260246033A1

Disclosed is a battery including: a battery can including a cylinder portion including an opening edge portion at one end portion thereof and a bottom portion closing the other end portion of the cylinder portion; an electrode body housed in the cylinder portion; and a sealing member fixed to the cylinder portion to seal an opening of an opening edge portion. The sealing member includes a lid portion covering the opening of the opening edge portion. A first engagement portion is formed in the end portion of the cylinder portion on the opening edge portion side, and a second engagement portion is formed in an end portion of the lid portion on an outer circumferential side. A first surface of the first engagement portion and a second surface of the second engagement portion are bonded, with the first surface and the second surface overlapping each other.

BATTERY CELL AND METHOD OF MANUFACTURING THE SAME

Resumen de: US20260245976A1

The present invention provides a battery cell and a method of manufacturing the same. In particular, since a case of the battery cell may have poor thermal resistance, the present invention provides a battery cell capable of preventing a coating layer including an insulation layer in the case and an electrode assembly from being damaged by heat, and releasing the heat generated in the battery.

PROCESSES FOR PREPARING HYDROXIDES AND OXIDES OF VARIOUS METALS AND DERIVATIVES THEREOF

Resumen de: AU2026210821A1

There is provided a process for preparing a metal hydroxide comprising (i) at least one metal chosen from nickel and cobalt and optionally (ii) at least one metal chosen from manganese, lithium and aluminum, said process comprising: reacting a metal sulfate comprising (i) at least one metal chosen from nickel and cobalt and optionally (iii) at least one metal chosen from manganese and aluminum with sodium hydroxide and optionally a chelating agent in order to obtain a solid comprising said metal hydroxide and a liquid comprising sodium sulfate; separating said liquid and said solid from one another to obtain said metal hydroxide; submitting said liquid comprising sodium sulfate to an electromembrane process for converting said sodium sulfate into sodium hydroxide; and reusing said sodium hydroxide obtained by said electromembrane process for reacting with said metal sulfate. ul u l

Positive Electrode Active Material, and Positive Electrode and Lithium Secondary Battery Which Include the Same

Resumen de: US20260245886A1

A positive electrode active material including lithium transition metal oxide particles in a form of a single particle. The lithium transition metal oxide has an average sphericity according to the following Equation 1 of 0.7 or more, and, when an electrode including the lithium transition metal oxide is rolled such that porosity is 20%, the average sphericity according to the following Equation 1 is 0.7 or more: Sphericity=(4πA)/P2 (1), wherein A is an area μm2 of the lithium transition metal oxide particle, and P is a perimeter μm of the lithium transition metal oxide particle. A positive electrode and a lithium secondary battery include the positive electrode active material.

MONITORING DEVICE AND METHOD OF OPERATING THE SAME

Resumen de: US20260245193A1

0000 A monitoring device includes an image acquisition unit configured to capture an image at least one process processing device involved in the manufacturing of a battery cell, a state determination unit configured to generate a first determination result by analyzing the acquired image using an artificial intelligence model trained to assess the condition of a top insulator of the battery cell and determine whether the battery cell is defective, and a determination unit configured to determine whether the battery cell is defective based on the first determination result.

ENERGY STORAGE SYSTEM

Resumen de: US20260246274A1

0000 An energy storage system (ESS) includes a plurality of battery units, a plurality of direct current-direct current (DC-DC) converters respectively connected to the plurality of battery units to convert an input voltage from a connected battery unit into an output voltage, and a controller configured to control the plurality of DC-DC converters such that a summed voltage of output voltages of the plurality of DC-DC converters is an alternating current (AC) voltage.

LITHIUM METAL BATTERY AND MANUFACTURING METHOD THEREFOR

Resumen de: US20260245949A1

Provided are a lithium metal battery and a manufacturing method therefor, the lithium metal battery including: a cathode; an anode current collector; and an electrolyte layer arranged between the cathode and the anode current collector, wherein the electrolyte layer includes a gel-type polymer electrolyte, and the gel-type polymer electrolyte includes a crosslinked polymer and a liquid electrolyte containing a lithium salt and an organic solvent, the crosslinked polymer including a polymerization product of a multifunctional polymerizable monomer and one or more selected from a compound of Formula 1 and a compound of Formula 1-1. Descriptions of Formula 1 and Formula 1-1 are as set forth in the detailed description.

ELECTROLYTE AND LITHIUM BATTERY COMPRISING SAME

Resumen de: US20260245966A1

Provided are an electrolyte and a lithium secondary battery including the same, the electrolyte including: a first lithium salt including a lithium ion and a first anion; a second lithium salt including a lithium ion and a second anion; and a solvent including a fluorine-containing linear ester, wherein a dissociation degree of the first lithium salt with respect to the fluorine-containing linear ester is greater than a dissociation degree of the second lithium salt with respect to the fluorine-containing linear ester.

BATTERY CELL CAPABLE OF DETECTING ELECTROLYTE LEAKAGE

Resumen de: US20260243622A1

The present disclosure provides a battery cell capable of detecting electrolyte leakage, including: an electrode assembly; an electrolyte; a case 100 comprising a receptor 110 accommodating the electrode assembly and the electrolyte, and a sealing portion 120 at an edge the receptor 110 and sealing the receptor 110 with the electrode assembly and the electrolyte therein; and a leakage sensor 200 coupled to and at the sealing portion 120 configured to detect the electrolyte leaking from the case 100. The leakage sensor 200 includes a conductor 220, at least a portion of the conductor 220 adjacent to and extending along an edge of the sealing portion 120. At least one of resistance, current and voltage of the electric circuit is configured change when leaked electrolyte contacts the conductor 220.

Pouch Battery

Resumen de: US20260245985A1

0000 In order to provide a pouch battery having improved lifespan performance, an embodiment of the present disclosure provides a pouch battery comprising: a pouch case including an accommodation part in which an electrode assembly comprising a cathode and an anode is accommodated and a cover part which covers the accommodation part; and the electrode assembly accommodated and sealed in the pouch case, wherein: the pouch battery includes a body part in which the electrode assembly is located and a sealing part where the accommodation part and the cover part are sealed; and a gas storage part and an isolation part which isolates the gas storage part from the body part are included in at least a portion of the sealing part.

ELECTRONIC CIGARETTE POWER SUPPLY PORTION

Resumen de: US20260241120A1

0000 Aspects of the instant disclosure relate to electronic cigarettes; more particularly, to electronic cigarettes including a power supply portion. In various embodiments, the eCig power supply portion includes a sub-assembly housing substantially containing a battery, an airflow sensor, and controller circuitry. Aspects of the disclosure are further directed to an eCig power supply portion further including a hemicylindrical port and/or electrical contacts aligned along a longitudinal axis of the power supply portion.

MANUFACTURING LINE, PROCESS, AND SINTERED ARTICLE

Resumen de: US20260243510A1

0000 A method of manufacturing ceramic tape includes a step of directing a tape of partially-sintered ceramic into a furnace. The tape is partially-sintered such that grains of the ceramic are fused to one another yet the tape still includes at least 10% porosity by volume, where the porosity refers to volume of the tape unoccupied by the ceramic. The method further includes steps of conveying the tape through the furnace and further sintering the tape as the tape is conveyed through the furnace. The porosity of the tape decreases during the further sintering step.

SECONDARY BATTERY

Resumen de: US20260245883A1

A highly safe secondary battery is provided. The secondary battery includes a positive electrode and a negative electrode. The positive electrode includes a positive electrode active material. The positive electrode active material includes lithium cobalt oxide including magnesium. Magnesium concentration in a surface portion of the positive electrode active material is higher than magnesium concentration in an inner portion of the positive electrode active material. The negative electrode includes a negative electrode active material. The negative electrode active material includes a carbon material. The secondary battery is subjected to AC impedance measurement in a state where charging is performed until a voltage reaches 4.5 V, an AC impedance value at a frequency of 1 kHz is less than 90 mΩ.

ION PERMEABLE MEMBRANE

Resumen de: US20260242230A1

The object of the present invention is to provide an ion permeable membrane which has high quality as a permeable membrane, is capable of coping with an increase in size, has improved yields, has improved handleability, and is achieving weight reduction, and includes a solid electrolyte exhibiting alkalinity and a resin containing a carboxy group, and has an acid value of more than 0 mgKOH/g.

LITHIUM-ION SECONDARY BATTERY

Resumen de: US20260245950A1

0000 One embodiment of the present invention provides a secondary battery that can be used in a wide temperature range and is not susceptible to the ambient temperature. Another embodiment of the present invention provides a highly safe secondary battery. A barrier layer is provided for a positive electrode active material, and an electrolyte containing fluorinated cyclic carbonate or fluorinated linear carbonate is used. The structure of this embodiment leads to a state where almost no coating film, ideally no coating film, is formed on a surface of the positive electrode active material. In addition, aging treatment for forming a coating film on the positive electrode active material can be unnecessary.

CYLINDRICAL BATTERY AND METHOD FOR MANUFACTURING CYLINDRICAL BATTERY

Resumen de: US20260246032A1

0000 This cylindrical battery includes an electrode body, an exterior can, and a sealing body swaged and fixed to the opening of the exterior can via a gasket. The exterior can has: a tip bent part bent so as to extend inward in the radial direction in an opening adjacent to the gasket; and a tip cylindrical part extending in the axial direction. The gasket has a non-continuous part that can be separated in the axial direction at an opposing part that faces the radially inner side of the tip cylindrical part.

METHOD FOR MANUFACTURING LITHIUM HYDROXIDE

Resumen de: US20260242229A1

A method for producing lithium hydroxide including mixing a solid raw material containing lithium carbonate, and a calcium compound, in a medium, so as to provide a calcium carbonate-containing liquid, subjecting the calcium carbonate-containing liquid to solid-liquid separation, so as to remove a solid matter containing calcium carbonate, recovering lithium ion from a lithium ion aqueous solution obtained through the solid-liquid separation, to a recovery liquid, with an electrochemical apparatus including a lithium permselective membrane, and obtaining lithium hydroxide from the recovery liquid, the lithium ion aqueous solution having a concentration of lithium ion of 3,000 ppm by mass or more.

INSULATING SEPARATOR FOR AN ELECTRIC BATTERY

Resumen de: US20260246024A1

0000 A separator suitable for separating two cells of a battery, for example of an electric or hybrid electric vehicle, the separator comprising at least one insulating layer comprising a composite material, the composite material comprising a binder mixed with aerogel particles, the volume content of the aerogel particles in the composite material being greater than 20% and the binder being of the mineral type. The present invention also concerns a battery comprising a separator according to the invention, and a method of manufacturing the separator according to the invention.

HIGH-SPEED BATTERY DEFECT INSPECTION METHODS

Resumen de: US20260243837A1

Provided are high-speed battery defect inspection methods. For example, provided are high-speed battery defect inspection methods for determining, in a short time, whether a battery formed by stacking a plurality of monocells is defective, by predicting the degradation characteristics of the battery.

CURVED BATTERY CELL THICKNESS MEASUREMENT APPARATUS INCLUDING LOW MEASUREMENT PRESSURE CALIPER AND CURVED BATTERY CELL THICKNESS MEASUREMENT METHOD USING THE SAME

Nº publicación: US20260243555A1 20/08/2026

Solicitante:

LG ENERGY SOLUTION LTD [KR]
LG ENERGY SOLUTION, LTD.

Resumen de: US20260243555A1

0000 Curved battery cell thickness measurement apparatuses and methods are provided, which are capable of accurately and consistently measuring the thickness of a curved battery cell obtained as the result of deformation of a cuboidal battery cell. The curved battery cell may be fixed perpendicular to a base using an arc-shaped jig that conforms to the shape of the curved battery cell, and the thickness of the curved battery cell is accurately and consistently measured using a low measurement pressure caliper at a fixed position.