Resumen de: US20260302375A1
An electrochemical device, including a cell and a shell enclosing the cell; the cell includes a jelly roll including a first electrode and a second electrode spaced from each other, a separator is disposed between the first electrode and the second electrode, the first electrode and the second electrode are wound to form the cell; the first electrode includes a first current collector, the first current collector includes a first surface and a second surface disposed oppositely; the first surface faces the shell, and includes a coated region coated with a first active material and an uncoated region; the uncoated region includes a first uncoated region disposed at an end of the jelly roll, and the first uncoated region includes alternating bent portions and straight portions; and the bent portions are provided with an insulating layer.
Resumen de: US20260302323A1
Provided are electrochemical cells including separators permeable to some materials and impermeable to other materials in electrolytes. Also provide are methods of forming such separators. The selective permeability of a separator is achieved by its specific pore diameter and a narrow distribution of this diameter. Specifically, a species responsible for ion transport in an electrochemical cell are allowed to pass through the separator, while another species is blocked thereby preventing degradation of the cell. For example, a species containing lithium ions is allowed to pass in rechargeable cells, while one or more species containing transition metals are blocked. In some embodiments, a separator may include a membrane layer with at least 90% of pores of this having a diameter of between about 0.1 nanometers and 1.0 nanometer. The membrane layer may be a standalone layer or supported by a membrane support.
Resumen de: US20260298849A1
0000 A method for evaluating an all-solid-state lithium-ion battery including a solid electrolyte layer including an oxide-based solid electrolyte, a positive electrode layer including a positive electrode active material, and a negative electrode layer, which evaluates the battery characteristics of the all-solid-state lithium-ion battery by comparing an X-ray diffraction pattern of a compact obtained by mixing and pressing the oxide-based solid electrolyte and the positive electrode active material with an X-ray diffraction pattern of a fired body obtained by firing the compact.
Resumen de: US20260296891A1
0000 An aspect of the present disclosure relates to a carbon composite for use in a positive electrode of a lithium-sulfur battery, comprising a secondary structure of carbon nanotubes which is agglomerates of carbon nanotubes, wherein the secondary structure has a flower-like structure comprising a spherical core and at least one amorphous flake on a surface of the spherical core.
Resumen de: US20260305017A1
0000 Systems, methods, and articles for a portable power case are disclosed. The portable power case is comprised of at least one battery and at least one PCB. The portable power case has at least two access ports and at least one USB port. The portable power case is operable to supply power to an amplifier, a radio, a wearable battery, a mobile phone, and a tablet. The portable power case is operable to be charged using solar panels, vehicle batteries, AC adapters, non-rechargeable batteries, and generators. The portable power case provides for modularity that allows the user to disassemble and selectively remove the batteries installed within the portable power case housing.
Resumen de: US20260302226A1
An LFP electrode material is provided which has improved impedance, power during cold cranking, rate capacity retention, charge transfer resistance over the current LFP based cathode materials. The electrode material comprises crystalline primary particles and secondary particles, where the primary particle is formed from a plate-shaped single-phase spheniscidite precursor and a lithium source. The LFP includes an LFP phase behavior where the LFP phase behavior includes an extended solid-solution range.
Resumen de: US20260299033A1
0000 A system includes a first plurality of secondary devices, each secondary device of the first plurality of secondary devices including a first wireless transmitter and a battery monitor integrated circuit (IC). The battery monitor IC is configured to obtain battery data from at least one battery cell, and the first wireless transmitter is configured to wirelessly transmit the battery data. A first primary device has a second wireless transmitter wirelessly coupled to the first wireless transmitters of the first plurality of secondary devices via a first wireless network. A second primary device has a second wireless transmitter. The second primary device is configured to detect a fault with the first primary device and, in response detection of the fault, to establish a second wireless network with the first plurality of secondary devices.
Resumen de: US20260295886A1
0000 A secondary battery manufacturing device may include a substrate in which a sheet containing a secondary battery material is located on one surface thereof; a cutting member that includes a knife for ultrasonically cutting the sheet, and a support part to which the knife is mounted and fixed; and a vibrator that receives transmission of power from a power source and applies ultrasonic vibration to the cutting member, wherein the cutting member may apply ultrasonic vibration to the sheet to cut the sheet.
Resumen de: US20260302203A1
Disclosed herein is a method of preparing lithium transition metal oxide positive electrode materials from elemental feedstocks for secondary batteries and other applications and the product thereof. The methods disclosed herein may involve mixing of at least one transition metal in elemental form with lithium source in a dry solid-state mixing process followed by a sintering step to form the lithium transition metal oxide positive electrode materials.
Resumen de: US20260302234A1
A negative electrode active material, a negative electrode sheet, a secondary battery, and an electronic device. The negative electrode active material includes graphite particles and a silicon carbide layer disposed on a surface of the graphite particles, where a mass percentage Y % of silicon in the negative electrode active material and an average height Lc nm of the negative electrode active material along a c-axis direction satisfy: 0.3×(32−Lc)≤Y≤0.9×(32−Lc). In negative electrode active particles, disposing a silicon carbide layer on the surface of the graphite particles and controlling a thickness of the silicon carbide layer in the negative electrode active material based on the average height of the graphite particles along the c-axis direction can effectively reduce reactions between the graphite particles and an electrolyte, reducing consumption of active ions, and improving the initial coulombic efficiency of the battery.
Resumen de: US20260302348A1
A non-aqueous electrolyte solution for a secondary battery, containing a first compound represented by the following Formula (1), a second compound being at least one selected from the group consisting of a compound represented by the following Formula (2), a compound represented by the following Formula (3), and a compound represented by the following Formula (4), a non-aqueous solvent, and an electrolyte.
Resumen de: US20260302573A1
A structure for sealing a liquid injection port of a cap of a battery can may include: a liquid injection port provided at a battery can or a cap made of metal material; a stopper made of metal material closing the liquid injection port; and a heat-fused portion interposed between and heat-fused to the stopper and perimeter of the liquid injection port. The heat-fused portion includes a heat-fusion layer containing PP-MAH (polypropylene-maleic anhydride) using one of a first chrome-coated layer coated around the liquid injection port and a second chrome-coated layer coated on the stopper as a substrate. The chromium oxide of the chrome coated layer and PP-MAH may be chemically bonded through heat fusion.
Resumen de: US20260296220A1
0000 In its main aspect, the invention relates to a flame shield for an electric vehicle battery, in particular a lithium-ion battery, and to a method for manufacturing it. The flame shield according to the invention comprises at least one flame-resistant layer consisting of a porous fibrous non-woven impregnated with polyurethane, wherein the fibers comprised in the porous fibrous non-woven have a melting temperature of at least 1100 °C, the polyurethane does not comprise any flame retardant and the polyurethane impregnates the fibrous-non woven in such a way that the flame-resistant layer is impervious to air-flow. In a second aspect, the invention concerns a battery housing wherein the battery lid and/or the battery tray comprise such a flame shield.
Resumen de: US20260302225A1
0000 A precursor and a preparation method thereof, a positive electrode material, a positive electrode plate, and a lithium-ion battery are provided. The preparation method includes: mixing a plurality of first raw material components, and drying to obtain a first precursor Mn
Resumen de: US20260302241A1
A binder for non-aqueous electrolyte secondary battery electrodes which minimizes the degree of electrode expansion of the non-aqueous electrolyte secondary battery includes; the binder for non-aqueous electrolyte secondary battery electrode, a crosslinked polymer that contains a carboxyl group or a salt of this crosslinked polymer. The crosslinked polymer or a salt thereof has a volume-based median diameter of 0.60 μm or more and 1.0 μm or less as measured in an acetonitrile medium, while having a degree of swelling water of 25 or more to 40 or less in a pH of 8.
Resumen de: US20260295320A1
0000 A fire extinguishing material for lithium battery fire suppression, of the present invention, is composed of: a granular first fire extinguishing material, which is prepared by firing a silica powder and the like and which has a predetermined size; a second fire extinguishing material of a single-layer graphene compound applied, in multiple layers, to the surface of the first fire extinguishing material; and a third fire extinguishing material made of a metal carbonate covalently bonded or applied to the graphene compound. During a lithium battery fire, when the fire extinguishing material of the present invention is applied to a fire source through a discharge means such as a fire extinguisher, the fire extinguishing material is put on top of the fire source, the second fire extinguishing material, that is, the metal carbonate, which comes in direct contact with the fire source, adsorbs carbon dioxide, which is most abundantly generated from the fire source, so as to absorb radicals while being converted into a bicarbonate, thereby primarily extinguishing the fire, and the graphene compound, which is the second fire extinguishing material with excellent thermal conductivity, rapidly releases heat from the fire to the outside so as to improve, by means of effective cooling, fire extinguishing performance for the lithium battery fire, thereby preventing thermal runaway during the lithium battery fire, and extinguishes the lithium battery fire together with an additiona
Resumen de: US20260299041A1
Page 6 of 47 An estimation device that estimates deterioration of an energy storage device is configured such that, a deterioration value that indicates the deterioration of the energy storage device is not substantially increased during an initial period of an operation of the energy storage device in which characteristics are maintained or enhanced.
Resumen de: US20260304671A1
Power station comprising inverter (1) and battery modules (2) utilized to support self-consumption solar systems or to replace or hybridize fuel-based electrical generators, and designed to be operable both in portable mode for stand-alone use and in fixed operational mode integrated in private electrical installations. In portable mode both elements are positioned facing each other on a transport element such as a trolley. In fixed mode both elements can be independently mounted on the wall, occupying minimal space and connected to the private electrical installation via the electrical board. Each battery module (2) comprises a front battery fastener (2.1) attachable to a rear battery fastener (2.2) or to a rear inverter fastener (1.3) comprised in the inverter (1) in portable mode. In fixed mode the inverter (1) and each battery module (2) are separately attachable to a wall via an inverter wall-fastener (4.3) and a battery wall-fastener (4.4) respectively.
Resumen de: US20260293802A1
0000 The present disclosure discloses an autonomous operation device. The autonomous operation device includes a chassis and a cavity cover, where the chassis includes a first cover body and a second cover body, and the first cover body covers the second cover body to jointly form a battery pack cavity; the cavity cover operably opens and closes the battery pack cavity, and the battery pack cavity and the cavity cover are configured such that the cavity cover can prevent water from entering the battery pack cavity in both a closed and locked state and a closed and unlocked state. The present disclosure can prevent water from entering the battery pack cavity when the cavity cover is in the closed and unlocked state, improving the use safety of a battery pack.
Resumen de: US20260294005A1
0000 Provided is a control method for an aerosol generation apparatus, and an aerosol generation apparatus. The method comprises: acquiring an ambient temperature in the proximity of a battery cell; according to the ambient temperature, determining output power, which is provided for a heating assembly, of the battery cell; and outputting the output power to the heating assembly, so that the heating assembly reaches a preset preheating temperature, and then the electric capacity of the battery cell can maintain a preset number of aerosol products under the output power. The present application adjusts, according to the ambient temperature in the proximity of the battery cell, the output power outputted by the battery cell to the heating assembly, optimizes the output power of the battery cell according to the ambient temperature, and solves the technical problem that the output power of the battery cell is prone to being affected by the temperature.
Resumen de: US20260302239A1
0000 An electrode includes a current collector, and an electrode active material layer formed on the current collector, wherein the electrode active material layer includes granules. The granule shows a higher binder content ratio in the surface portion as compared to the binder content ratio in the core portion.
Resumen de: US20260302420A1
0000 A thermal regulation device, for a component which can release heat during its operation, includes a circulation network for a heat-transfer fluid. The circulation network includes a main heat-transfer fluid flow channel, a secondary heat-transfer fluid flow channel, and a mixing area, into which there open the main channel via a main transverse cross-section, and the secondary channel via a secondary transverse cross-section. The secondary transverse cross-section of the secondary channel is smaller than the main transverse cross-section of the main channel.
Resumen de: US20260298875A1
A battery testing apparatus according to an embodiment includes a connector connected to an electrode of a battery cell, a charging/discharging unit configured to charge or discharge the battery cell through the connector, an ultrasonic sensing unit configured to output an ultrasonic signal toward the battery cell and sense the ultrasonic signal passing through the battery cell, and a controller configured to determine a state of the battery cell based on characteristics of the ultrasonic signal passing through the battery cell during charging or discharging of the battery cell.
Resumen de: US20260302532A1
A separator for a lithium-based battery, and method for fabricating the same is disclosed. The method includes oxidizing cellulose fibrils to form oxidized cellulose having carboxylic functional groups, decorating the oxidized cellulose with nanoparticles, and forming the nanoparticle-decorated oxidized cellulose into a film to become the separator for the lithium-based battery. The cellulose may be a bacterial cellulose. The cellulose fibrils may be oxidized through a TEMPO oxidation. Decorating the oxidized cellulose with nanoparticles may include introducing a precursor solution to the oxidized cellulose that reacts with hydroxyl groups of the oxidized cellulose while preserving the carboxylic functional groups, causing the nanoparticles to nucleate on the surface of the oxidized cellulose. The nanoparticles may be composed of an oxide material. The oxide material may be SiO2. The precursor solution may be tetraethyl orthosilicate (TEOS).
Nº publicación: US20260302342A1 01/10/2026
Solicitante:
LIONGO CHANGZHOU NEW ENERGY CO LTD [CN]
LIONGO (CHANGZHOU) NEW ENERGY CO., LTD.
Resumen de: US20260302342A1
A composite material includes LiAlPO4(OH)xF1-x and Al(H2PO4)3 compounded on the surface of the LiAlPO4(OH)xF1-x, where 0≤x≤1. A corresponding core-shell/glassy solid-state electrolyte material is also prepared. The composite solid electrolyte has good ionic conductivity, good flexibility, a stable composite structure and thermal stability, such that when being applied to positive electrode coating, the composite solid electrolyte can slow down reduction in the capacity of a positive electrode by a coating layer, effectively remove alkaline residual lithium left on the surface in the preparation process of a positive electrode material, and convert the residual lithium into Li3PO4 favorable for ionic conductivity of the coating layer and AlPO4 capable of protecting the positive electrode.