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BATTERY FORMATION PROTOCOLS

Resumen de: US20260260927A1

0000 The invention relates to improved formation protocols for NIB hard carbon anodes in super concentrated ionic liquid electrolytes. In contrast to established methods for carbonate-based solvents, a high current density 2 C formation protocol resulted in the highest specific capacity during subsequent cycling at ½ C current density, along with the lowest EIS resistance, compared with 1 C and 1/10 C formation protocols. Variable cycling conditions (e.g., ⅕ C for long term cycling) were not influenced by the high C-rate treatment, demonstrating the necessity of applying high rate formation protocols for conditioning in these electrolytes. XPS and NMR analysis revealed a thinner SEI layer was formed after high C-rate formation, which can facilitate the Na+ charge transfer and diffusion across the electrolyte/electrode boundary.

NEGATIVE ELECTRODE INCLUDING COATING LAYER AND ION TRANSPORT LAYER, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

Resumen de: US20260260903A1

A negative electrode for all-solid-state battery and a lithium secondary battery including the same are provided. The negative electrode includes a negative electrode current collector formed of an electrically conductive metal material, a coating layer formed on one surface or opposite surfaces of the negative electrode current collector, the coating layer including a lithiophilic material, and an ion transport layer formed on the coating layer, the ion transport layer including amorphous carbon configured to allow lithium ions to move therethrough.

SYSTEM FOR PRODUCING LITHIUM METAL BATTERIES

Resumen de: US20260260869A1

Methods are proposed for manufacturing dendrite-resistant lithium metal electrodes suitable for incorporation into lithium metal batteries. In an embodiment, the method involves first electroplating a copper sheet onto a surface of a single crystal of silicon, the silicon being doped to form a p-type or an n-type semiconductor, and then further electroplating the copper sheet with lithium metal. The lithium-electroplated copper sheet thus manufactured provides a lithium electrode that is resistant to dendrite formation during cycling of lithium metal batteries when compared to conventionally manufactured lithium electrodes. Methods are further provided of manufacturing lithium sheets by directly electroplating lithium metal onto single crystals of doped silicon, the lithium sheets configured for incorporation into lithium metal electrodes that are resistant to dendrite formation during cycling of lithium metal batteries.

INSULATION ELEMENT

Resumen de: US20260260968A1

0000 The present invention relates to an insulation element for thermal and/or electrical insulation of a rechargeable battery. The insulation element has a first outer layer and a second outer layer, the outer layers being made of an electrically insulating material. Further, the insulation element has at least one intermediate element which is arranged between the outer layers, the intermediate element being made of a textile and/or thermally insulating material, in particular a nonwoven. According to a first aspect, the insulation element has a central region which is arranged between edge regions of the insulation element, wherein the outer layers are connected to each other in the central region and wherein the central region is arranged between two different sections of the intermediate element or between two intermediate elements. According to a further aspect, a thickness of the insulation element is reduced in a central region. According to a further aspect, the insulation element has at least one ventilation channel arranged between the outer layers.

TEMPERATURE DEPENDING SAFETY TIMER

Resumen de: US20260261140A1

A method for charging a battery in an aerosol-generating system is provided, the method including: determining a temperature indicative of a temperature of the battery; calculating a maximum charging time tmax depending on the determined temperature; and terminating charging, if the maximum charging time tmax has elapsed, the maximum charging time tmax being adjusted based on a last temperature measurement. A charge controller for an aerosol generating system comprising a battery is also provided. An aerosol-generating device comprising a rechargeable battery is also provided. A charging case for an aerosol generating device is also provided.

LITHIUM SECONDARY BATTERY

Resumen de: US20260261012A1

0000 Disclosed is a lithium secondary battery including: a positive electrode; a negative electrode; a separator; a spacer; and a nonaqueous electrolyte, wherein the separator is provided between the positive and negative electrodes, the spacer is provided between the separator and at least one of the positive and negative electrodes, in the negative electrode, a lithium metal deposits during charging and the lithium metal dissolves into the nonaqueous electrolyte during discharging, the spacer includes a plurality of first linear portions and a plurality of second linear portions that face each other with the positive electrode or the negative electrode interposed therebetween, and when the plurality of first linear portions and the plurality of second linear portions are viewed in an overlapping manner, each of the plurality of first linear portions crosses at least a portion of the plurality of second linear portions at a plurality of points.

BATTERY PACK

Resumen de: US20260261015A1

0000 A battery pack includes a battery block including a plurality of battery cells, and series busbars connecting the plurality of battery cells in the battery block in series. At least one of the series busbars includes a first busbar and a second busbar connected in a separable manner from each other, and a screw electrically connecting the first busbar to the second busbar. The screw being tightened electrically connects the first busbar to the second busbar. The screw being loosened causes the first busbar and the second busbar to be in a disconnected state.

PACK CASE WITH IMPROVED HEAT-DISSIPATING STRUCTURE

Resumen de: US20260260982A1

0000 Disclosed herein a pack case including: a base plate; a side plate; and a lead, wherein a space for accommodating at least one battery module is formed above the base plate, and wherein a plurality of engraved structures is formed on an upper surface of the base plate configured to contact support a lower surface of the battery module, with the plurality of engraved structures forming a space for accommodating a thermal resin.

METHOD FOR PROCESSING MANGANESE CONTAINING MATERIAL

Resumen de: US20260257935A1

0000 According to an example aspect of the present invention, there is provided a method for processing a manganese containing material comprising: a) leaching the manganese containing material using sulfuric acid and hydrogen peroxide to produce a first process solution comprising manganese sulfate, which first process solution is filtrated, b) measuring conductivity of the first process solution at a temperature, c) determining concentration of manganese based on the measured conductivity of the first process solution at the temperature, and a correlation between the conductivity and the concentration, d) dosing persulfate according to the determined manganese concentration to produce a second process solution, and to precipitate at least part of manganese oxide, and e) filtering the manganese oxide, to produce a manganese depleted process liquor.

METHOD OF MANUFACTURING BUSBAR

Resumen de: US20260260780A1

A method of manufacturing a busbar is provided. The busbar can include a plurality of members that are platy and a welding area in which two of the members are welded, the welding area being linear and extending in a first direction. The method can include forming the welding area by application of a laser light including a plurality of beams.

CATHODE MATERIAL AND PREPARATION METHOD THEREOF AND SECONDARY LITHIUM BATTERY

Resumen de: US20260257938A1

0000 Provided is a cathode material, and a secondary lithium battery. The cathode material includes a metal element represented as M, where a total content of the M element is in a range from 500 ppm to 5000 ppm by weight based on weight of the cathode material; and where the M element is distributed in interior and surface of the cathode material, and a molar ratio of the M element in the interior to the M element in the surface is greater than 0.5 and less than 1.5, where when performing element line scan by a high-precision electron spectrometer along an approximate diameter direction in a cross-section of a particle of the cathode material cut by an ion beam cutter, the surface is defined as at an end of the diameter of the line analysis, and the interior is defined as at a center of the diameter.

Oxidative Delithiation of Alkali Nickel Oxide

Resumen de: US20260260885A1

Provided are methods of preparing an electrochemically active cathode material including the steps of combining an alkali metal-containing nickel oxide having a formula A1−aNi1+aO2, wherein A comprises an alkali metal and 0

COMPOSITIONS CONTAINING THERMALLY CONDUCTIVE FILLERS

Resumen de: US20260258279A1

0000 Disclosed herein is a composition comprising a thiol-terminated compound; an oxidant; and a thermally conductive filler package comprising thermally conductive, electrically insulative filler particles. The thermally conductive, electrically insulative filler particles have a thermal conductivity of at least 5 W/m·K (measured according to ASTM D7984) and a volume resistivity of at least 1 Ω·m (measured according to ASTM D257, C611, or B193) and may be present in an amount of at least 50% by volume based on total volume of the filler package. The thermally conductive filler package may be present in an amount of 15% by volume percent to 90% by volume based on total volume of the composition. The present invention also is directed to a method for treating a substrate and to substrates comprising a layer formed from a composition disclosed herein.

CRYSTALLINE SULFIDE SOLID ELECTROLYTE

Resumen de: US20260260932A1

0000 Provided is a crystalline sulfide solid electrolyte having a high ionic conductivity and being capable of realizing a reduction in raw material cost, which contains a lithium atom, a phosphorus atom, a sulfur atom, an oxygen atom, and a halogen atom, has diffraction peaks at 2θ=20.3±0.5° and 29.6±0.6° in X-ray diffraction measurement using a CuKα line, has a peak attributable to PSO<3>3− observed at 39.6±5.0 ppm in solid-state <31>P-NMR measurement, and has a composition represented by the following composition formula: (100−y)(0.5)(Li<3+2z>P(S<1−x>O)<4+z>)+(y)LiX (in which, x, y, and z satisfy 0.00060≤x≤0.15, 3.0≤y<25.0, and −0.17≤z≤1.5, respectively, and X represents a halogen atom).

Electrode for Non-Aqueous Electrolyte Secondary Battery

Resumen de: US20260260893A1

0000 An electrode for a non-aqueous electrolyte secondary battery contains an electrode active material layer containing an electrode active material, a binder, and a conductive aid. The binder contains a predetermined fluorine-based polymer electrolyte, and the conductive aid contains fibrous carbon, and the fibrous carbon has an aspect ratio of 45 or more. The electrode improves the rate characteristics of the non-aqueous electrolyte secondary battery.

METHODS OF RECOVERING ELECTRODE ACTIVE MATERIALS FROM LITHIUM-ION BATTERIES AND ELECTRODES THEREOF

Resumen de: US20260260957A1

Methods of recycling and recovering lithium-ion batteries (LIB) and electrode materials thereof, including recovering reusable electrode materials from spent LIBs and electrode scraps produced as a byproduct of LIB production. An electrode sheet is separated from a lithium-ion battery or obtained as a component of a lithium-ion battery. The electrode sheet includes an electrode active material, a polyvinylidene fluoride binder, a carbon-based material, and a current collector. At least a portion of the electrode sheet is immersed in propylene carbonate to delaminate the electrode active material from the current collector and form a solid/liquid mixture. The propylene carbonate is separated from the solid/liquid mixture and the electrode active material is separated from the polyvinylidene fluoride binder, the carbon-based material, and the current collector.

BUSBAR ASSEMBLY AND BATTERY PACK INCLUDING THE SAME

Resumen de: US20260261014A1

A busbar assembly according to an embodiment of the present disclosure includes: a busbar; a glass fiber layer covering the busbar; and a fire resistant silicone layer covering the busbar and disposed in an empty space of the glass fiber layer.

PROTECTING DEVICE AND METHOD FOR MANUFACTURING PROTECTING DEVICE

Resumen de: US20260260831A1

Provided is a protecting device that can handle high currents while reducing the amount of the electrode formation material used to form electrodes and maintaining conductivity and connectivity. The protecting device includes an insulating substrate 2, a heat generator 3 provided on the insulating substrate 2, a first electrode 4 and a second electrode 5 provided on the insulating substrate 2, a heat-generator lead-out electrode 6 disposed between the first electrode 4 and the second electrode 5 and electrically connected to one end of the heat generator 3, and a meltable conductor 7 disposed on surfaces of the first electrode 4, the second electrode 5, and the heat-generator lead-out electrode 6 to provide an electrical connection between the first electrode 4 and the heat-generator lead-out electrode 6 and between the second electrode 5 and the heat-generator lead-out electrode 6, wherein the connection portions 8 of the first electrode 4, second electrode 5, and heat-generator lead-out electrode 6 connected to the meltable conductor 7 are formed thicker than the other portions.

LITHIUM-ION CONDUCTOR, LITHIUM-ION BATTERY, AND METHOD FOR PRODUCTION OF LITHIUM-ION CONDUCTOR

Resumen de: US20260260896A1

Disclosed is a technology which enables minimization of deterioration of charge/discharge characteristics when cracks occur in an electrolyte layer or electrode of a lithium-ion battery. The technology of the present disclosure includes a specific lithium-ion conductor in the electrolyte layer or electrode of the lithium-ion battery. The lithium-ion conductor of the disclosure contains a complex halide represented by LiGaX4 (where X is one or more halogens).

Lithium-Ion Secondary Battery

Resumen de: US20260260926A1

A lithium-ion secondary battery with excellent cycle performance and safety is provided. The lithium-ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte solution. The positive electrode includes lithium cobalt oxide whose median diameter (D50) is greater than 12 μm. The lithium cobalt oxide includes magnesium in its surface portion. The negative electrode includes a graphite particle, a silicon particle, and a high molecular including a carboxy group.

FOLDABLE SOLAR PANEL

Resumen de: US20260261234A1

0000 A foldable solar panel including at least two solar modules mounted to a substrate. The foldable solar panel includes hook and loop tape to secure the foldable solar panel in the folded configuration. The foldable solar panel includes at least two straps and at least two horizontal rows of webbing operable to attach the foldable solar panel to a load-bearing platform.

LITHIUM IRON PHOSPHATE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET, AND SECONDARY BATTERY

Resumen de: WO2026179227A1

A lithium iron phosphate material and a preparation method therefor, a positive electrode sheet, and a secondary battery, relating to the field of positive electrode materials. The lithium iron phosphate material satisfies the expression: 1.10≤σb/σf≤5.00, where σb is a sample standard deviation of the circularity C of a large-particle lithium iron phosphate, and σf is a sample standard deviation of the circularity C of a small-particle lithium iron phosphate. The difference between the sample standard deviations of the circularities of the large-particle lithium iron phosphate and the small-particle lithium iron phosphate enables large particles of lithium iron phosphate and the small particles of lithium iron phosphate having different morphologies to be combined, so that the lithium iron phosphate material has good tap density and specific surface area. The preparation method for the lithium iron phosphate material comprises: performing vacuum dehydration on a polydopamine partially coated large-particle-size iron phosphate seed crystal, and obtaining a surface-layer-dehydrated modified iron phosphate seed crystal, the modified iron phosphate seed crystal being used for regulating the morphology of large-particle iron phosphate in a subsequent precipitation reaction, and then finally preparing a lithium iron phosphate material having good tap density and specific surface area by means of a co-precipitation method and subsequent treatment.

LITHIUM-ION BATTERY

Resumen de: WO2026179346A1

The present invention relates to a lithium-ion battery, and particularly relates to a lithium-ion battery having excellent high-temperature performance and fast charge cycle performance. The lithium-ion battery comprises: a positive electrode sheet, a negative electrode sheet and a non-aqueous electrolyte, wherein the positive electrode sheet comprises a phosphate compound as a positive electrode active material; and the non-aqueous electrolyte comprises a first additive, a second additive, a lithium salt and a solvent, with the first additive comprising at least one of five compounds, and the second additive comprising fluoroethylene carbonate. The lithium-ion battery can solve the problems of performance deterioration and poor fast charge cycle performance of a lithium iron phosphate positive electrode battery at high temperatures.

NEGATIVE ELECTRODE FOR SECONDARY BATTERY AND SECONDARY BATTERY INCLUDING THE SAME

Resumen de: US20260260904A1

0000 A negative electrode for a secondary battery according to the present disclosure includes a porous polymer substrate and a negative electrode active material loaded into the porous polymer substrate, wherein the porous polymer substrate has a lattice structure including a plurality of line portions and open portions, wherein each open portion of the porous polymer substrate is filled with the negative electrode active material in whole or in at least a part, and wherein the negative electrode active material includes at least one of a lithium metal or a lithium alloy. The negative electrode for the secondary battery including the porous polymer substrate of the lattice structure may have high mechanical strength, and suppress dendrite formation on the negative electrode and volume expansion of the negative electrode during charging and discharging.

JELLY ROLL

Nº publicación: WO2026179824A1 03/09/2026

Solicitante:

JIANGSU TENPOWER LITHIUM CO LTD [CN]
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Resumen de: WO2026179824A1

The present invention relates to the technical field of battery processing, and disclosed is a jelly roll. The jelly roll is formed by winding a positive electrode sheet, a separator, a negative electrode sheet, and a separator, which are sequentially stacked to form a through hole in the center of the jelly roll. A positive electrode active material layer and a blank foil located at an axial end of the jelly roll are provided on a positive electrode foil of the positive electrode sheet, and the blank foil of the positive electrode sheet is flattened to form a flat surface. An insulating layer is provided on an inner side of at least one turn of the negative electrode sheet closest to the through hole, and the insulating layer is used for preventing the blank foil of the positive electrode sheet from piercing the separator to connect with the negative electrode sheet. The jelly roll can prevent the blank foil of the positive electrode sheet from penetrating through the separator to be in contact with the negative electrode sheet, thereby avoiding the occurrence of a short circuit, and improving the safety performance of the battery.