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SECONDARY BATTERY SUPPORT, SOLID ELECTROLYTE SHEET, AND SECONDARY BATTERY

Resumen de: US20260245959A1

0000 A secondary battery support that employs a configuration where a plurality of layers formed including at least one type selected from paper and a non-woven fabric are laminated and integrated, and can reduce an internal resistance of a solid electrolyte layer.

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.

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.

BATTERY PROCESSING DEVICE AND PROCESSING METHOD

Resumen de: US20260246111A1

0000 A battery processing device and a processing method. The battery processing device includes a material conveying assembly, a pairing assembly, and a welding assembly. The material conveying assembly is configured to convey a first electrode assembly and a second electrode assembly, where the first electrode assembly and the second electrode assembly each include an electrode main body and a tab part disposed on the electrode main body. The pairing assembly is configured to pair the first electrode assembly and the second electrode assembly such that the electrode main body of the first electrode assembly and the electrode main body of the second electrode assembly are stacked on each other. The welding assembly is configured to weld the tab part of the paired first electrode assembly and the tab part of the paired second electrode assembly.

POLE INSPECTION DEVICE AND INSPECTION METHOD

Resumen de: US20260243696A1

A pole inspection device comprises image collection devices, a first light source, and a second light source; the image collection devices are movably arranged and have a first position where an extreme pole is inspected and a second position where a minimalistic pole is inspected; the first light source is provided on one side of the image collection devices and is configured to emit first light towards at least one side surface of the extreme pole in the first position of the image collection devices; the second light source is configured to be arranged above the image collection devices and surrounds the minimalistic pole; and the second light source is configured to emit second light towards the minimalistic pole in the second position of the image collection devices.

BATTERY CELL, BATTERY DEVICE, AND ELECTRIC DEVICE

Resumen de: WO2026170543A1

A battery cell, a battery device, and an electric device. The battery cell comprises an electrode assembly and an electrolyte, wherein the electrode assembly comprises a positive electrode sheet and a negative electrode sheet; a positive electrode film layer of the positive electrode sheet comprises a positive electrode active material, the positive electrode active material comprises a lithium-containing phosphate, and the porosity of the positive electrode sheet is 20-30%; a negative electrode film layer of the negative electrode sheet comprises a negative electrode active material, the negative electrode active material comprises graphite, and the porosity of the negative electrode sheet is 24-33%; the electrolyte comprises an electrolyte salt and a solvent, the solvent comprises a linear carboxylate ester and a linear carbonic ester, the mass percentage of the linear carboxylate ester in the electrolyte is 8.5%-40%, and the mass percentage of the linear carbonic ester in the electrolyte is 8.5%-50%. The battery cell simultaneously achieves good fast charging performance, good cycle performance and high energy density of a battery.

BATTERY DIAGNOSIS APPARATUS AND BATTERY DIAGNOSIS METHOD

Resumen de: US20260243839A1

Provided are a battery diagnosis apparatus and a battery diagnosis method. The battery diagnosis apparatus includes a data obtaining unit configured to obtain a first target full-cell profile representing a relationship between capacity and voltage of a target cell at a first electric stimulation applied to the target cell, and temperature information of the target cell, and a control circuit configured to generate an estimated full-cell profile based on the first target full-cell profile and an overpotential profile. The control circuit determines a first performance factor group as a primary estimation result for charge/discharge performance of the target cell by applying a cell diagnosis logic to the estimated full-cell profile. The control circuit determines a second performance factor group as a secondary estimation result for the charge/discharge performance of the target cell by applying a factor correction model to the first performance factor group and the temperature information.

WIRELESS COMMUNICATION SYSTEM

Resumen de: US20260246151A1

0000 A wireless communication system includes a housing formed of a conductive material, battery packs installed in the housing, each battery pack having outer surfaces formed of a conductive material, and wireless communication devices, each of which includes an antenna. The antenna of each wireless communication device is disposed in a corresponding propagation path defined between the housing and one or more of the battery packs. The wireless communication devices perform radio-wave wireless communication with one another using a predetermined communication frequency. The antenna of each wireless communication device transmits and receives radio waves having a predetermined-directional polarization plane more strongly than other radio waves having polarization planes other than the predetermined-directional polarization plane. In the predetermined-directional polarization plane, a cutoff frequency defined based on a longitudinal length of a cross section of the corresponding propagation path is lower than the predetermined communication frequency.

METHOD FOR RECYCLING GRAPHITE AND RECYCLED GRAPHITE

Resumen de: US20260246000A1

A method for producing recycled graphite, a recycled graphite, and a battery, includes the steps of providing a reclaimed graphite concentrate including any one or more of carboxymethyl cellulose and styrene-butadiene rubber, pre-treating the reclaimed graphite concentrate by subjecting the reclaimed graphite concentrate to an oxidizing environment at a temperature in the range 250-380° C., thereby reducing the total concentration of carboxymethyl cellulose and styrene-butadiene rubber to less than 0.25%, and thermally treating the pre-treated reclaimed graphite concentrate by subjecting the pre-treated reclaimed graphite concentrate to a non-oxidizing environment at a temperature of at least 2300° C.

POWER SUPPLY DEVICE

Resumen de: US20260246070A1

A power supply device includes secondary battery cells, an inner case accommodating the secondary battery cells therein, and an outer case covering the inner case. The inner case includes first and second plates constituting a side wall of the inner case. The first and second plates form a stacked part of the side wall in which the first and second plates are stacked on each other. The first plate has groove-shaped recesses in a surface thereof facing the second plate. Each of the groove-shaped recesses has a cut end at one end of the each of the groove-shaped recesses cut in a direction intersecting an extending direction of the groove-shaped recesses, the cut end constituting a first opening. The second plate forms a tubular exhaust duct in a part of the second plate stacked on the first plate by closing the one end of the each of the groove-shaped recesses where the first opening of the each of the groove-shaped recesses is formed. The second plate constitutes a second opening at another end of the each of the groove-shaped recesses opened and unclosed by the second plate. The exhaust duct communicates with an inside and an outside of the inner case via the first opening and the second opening.

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

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.

DOUBLE-LAYER ELECTRODE FOR HIGH-PERFORMANCE BATTERIES AND MANUFACTURING METHOD THEREOF

Resumen de: US20260245857A1

In a double-layer electrode for high-performance batteries and manufacturing method thereof, the double-layer electrode includes first and second layers. The first layer is formed on a base substrate, and has crystalline graphite and carbon mixed with each other. The second layer is formed on the first layer, and has the crystalline graphite.

COATING DIE AND COATING DEVICE

Resumen de: US20260241411A1

A coating die and a coating device. The coating die includes a die body and a pressure adjustment component. The die body is provided with a feed port and a discharge port that are opposite. The die body includes a first accommodating cavity and a second accommodating cavity that communicate with each other. The first accommodating cavity is located on a side of the second accommodating cavity close to the feed port in a first direction and communicates with the feed port. The second accommodating cavity communicates with the discharge port. The pressure adjustment component is accommodated in the second accommodating cavity. The pressure adjustment component includes a plurality of pressure adjustment plates. The plurality of pressure adjustment plates are spaced apart in a second direction to form a pressure control flow channel.

BATTERY

Resumen de: WO2026170770A1

The present application relates to the technical field of batteries, and discloses a battery, comprising: a laminated battery cell, comprising a plurality of electrode sheets stacked layer by layer in a first direction, wherein each electrode sheet comprises an electrode sheet body and a tab, the tab is led out from the electrode sheet body in a second direction, the size of the electrode sheet body in a third direction is L1 mm, and the size of the tab in the third direction is L2 mm, meeting: 20≤L1-L2≤120, and the first direction, the second direction and the third direction intersect in pairs. By defining the size range of a cut-off portion, the present application can ensure the stability of suction or clamping of a cutting operation while meeting overcurrent requirements of tabs, thereby improving the positioning accuracy of the cutting operation, improving the yield of the tabs, and thus improving the overall yield of laminated batteries.

LITHIUM-ION BATTERY

Resumen de: WO2026170858A1

The present invention relates to the technical field of lithium-ion batteries, and specifically relates to a lithium-ion battery having good fast charging cycle performance, high-temperature storage performance, and high energy density. The lithium-ion battery comprises a positive electrode sheet, a negative electrode sheet, and a non-aqueous electrolyte; the positive electrode sheet comprises a positive electrode material layer comprising a positive electrode active material; the positive electrode active material comprises a phosphate compound; the non-aqueous electrolyte comprises an additive, a lithium salt, and a non-aqueous organic solvent; the lithium salt comprises lithium bis(fluorosulfonyl)imide; the additive includes a first additive; the solvent comprises a compound of structural formula 2; and the lithium-ion battery satisfies: 2.8≤C/(10A+B)+D/100≤14, 0.05≤A≤2, 0.5≤B≤6, 24≤C≤56, and 160≤D≤220.

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.

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.

LITHIUM-ION SECONDARY BATTERY

Resumen de: WO2026171080A1

The present disclosure relates to the technical field of batteries, and particularly relates to a lithium-ion secondary battery. A positive electrode sheet of the lithium-ion secondary battery comprises first particles having the chemical formula of LixNia1Cob1Mnc1M1 d1O2 and second particles having the chemical formula of LiyNia2Cob2Mnc2M2 d2O2. A negative electrode sheet thereof comprises a negative electrode active material, the negative electrode active material comprises a silicon-carbon material, and the silicon-carbon material comprises a porous carbon matrix and a silicon material located in pore channels of the porous carbon matrix. The specific surface area A of the positive electrode active material, the oil absorption value B of the silicon-carbon material in the negative electrode sheet and the mass content C of lithium difluorophosphate in an electrolyte satisfy: 0.13≤C/A≤5.45, and 0.002≤C/B≤0.23. The lithium-ion secondary battery of the present disclosure has good high-temperature storage and high-temperature cycle performance.

ENERGY STORAGE APPARATUS AND POWER CONSUMPTION SYSTEM

Resumen de: WO2026170945A1

The present application relates to an energy storage apparatus and a power consumption system. The energy storage apparatus comprises: a first battery module and a second battery module, the first battery module comprising a first separator; the second battery module is connected in parallel to the first battery module, and the second battery module comprises a second separator; and a thermal shrinkage rate of the first separator at 150° C in a predefined direction is less than a thermal shrinkage rate of the second separator at 150° C in the predefined direction, wherein the predefined direction is a height direction of the first battery module.

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

Nº publicación: US20260245966A1 20/08/2026

Solicitante:

SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD.

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.