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MULTILAYERED ELECTROCHEMICAL CELLS, AND METHODS OF PRODUCING THE SAME

Resumen de: WO2025165821A1

In some aspects, an electrochemical apparatus can include an anode current collector, a first anode material disposed on a first side of the anode current collector, and a second anode material disposed on a second side of the anode current collector, the second side opposite the first side. The apparatus further includes a cathode current collector with a first cathode material disposed on a first section of the cathode current collector and a second cathode material disposed on a second section of the cathode current collector. The apparatus further includes a separator folded such that a first portion of the separator is interposed between the first anode material and the first cathode material and a second portion of the separator is interposed between the second anode material and the second cathode material.

WET/DRY CLEANER

Resumen de: WO2025165694A1

A surface cleaning apparatus may include a fluid distributor, a supply tank configured to receive a cleaning fluid, the supply tank configured to be fluidly coupled to the fluid distributor, one or more batteries, and a heat exchanger in a heat exchange relationship with the one or more batteries, wherein the heat exchanger is fluidly coupled to the supply tank such that at least a portion of heat generated by the one or more batteries is absorbed by the cleaning fluid as the cleaning fluid flows through the heat exchanger.

CATHODE ACTIVE MATERIAL FOR A LITHIUM SECONDARY BATTERY WITH NOVEL COMPOSITION

Resumen de: US2025253318A1

Provided is a cathode active material for lithium secondary batteries, featuring a core component with a coating part comprising lithium oxide. The lithium oxide includes lithium, a first element, and a second element substituting part of the first element. The first element can be boron (B), aluminum (Al), gallium (Ga), niobium (Nb), protactinium (Pa), or tantalum (Ta). The cathode active material demonstrates improved electrochemical stability and interfacial properties, with specified reduction and oxidation potentials. The lithium secondary battery comprises this cathode, an anode, and a solid electrolyte layer interposed between them. The core component may consist of lithium transition metal oxide in the form of secondary particles aggregating primary particles, providing enhanced performance. The solid electrolyte may be sulfide-based with an argyrodite crystal structure. The battery also includes a conductive material and a binder for improved functionality and stability.

BRACKET ASSEMBLY, BATTERY RACK AND ENERGY STORAGE CONTAINER

Resumen de: US2025253474A1

A bracket assembly, a battery rack and an energy storage container are provided. The battery rack main body is provided with multiple layers of battery storage areas for placing battery packs. The bracket assembly includes a plurality of first brackets configured to support and fix the battery packs. Each of the battery storage areas is mounted with a plurality of the first brackets. The plurality of the first brackets in the same battery storage area are arranged in multiple columns and multiple rows. Two adjacent first brackets in the same row are arranged in a staggered manner, so that two adjacent battery packs in the same row are arranged in a staggered manner.

FeSe2 AND N, S DOPED CARBON SPHERE MICRO FLOWER COMPOSITE AS A HIGH-PERFORMANCE ANODE MATERIAL FOR LITHIUM-ION BATTERY

Resumen de: US2025253320A1

The present invention relates to an anodic material for use in lithium ion battery (LIB) comprising of FeSe2 and its carbon composite with N, S doped porous carbon spheres (PNSCS) which can be synthesised by hydrothermal route using iron ammonium sulphate, selenium powder and citric acid as precursors and used as an anode for LIB. Further, the invention provides a process for synthesizing the said FeSe2 a PNSCS micro-flower composite by simple hydrothermal route.

ANODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

Resumen de: US2025253321A1

Disclosed is an anode including an anode current collector, and an anode active material layer which is disposed on at least one surface of the anode current collector and has a multilayer structure comprising a first anode active material layer and a second anode active material layer. At least one of the first anode active material layer and the second anode active material layer includes a first metal-doped first silicon-based active material, and a doping amount of the first metal is 1.5% by weight to 8% by weight based on a total weight of the first silicon-based active material.

ALL-SOLID-STATE BATTERY INCLUDING A COPPER CURRENT COLLECTOR

Resumen de: US2025253353A1

Disclosed is an all-solid-state comprising: an anode current collector; a first coating layer disposed on the anode current collector and comprising a first anode active material, a first conductive material, and a first binder; a second coating layer disposed on the first coating layer and comprising a second anode active material, a second conductive material, a solid electrolyte, and a second binder; a solid electrolyte layer disposed on the second coating layer; a cathode layer disposed on the solid electrolyte layer; and a cathode current collector disposed on the cathode layer.

PELLETIZATION FOR ALL-DRY SYNTHESIS OF LITHIUM TRANSITION METAL OXIDE MATERIALS

Resumen de: WO2025165784A1

Disclosed herein is a method of pelletization of precursor mixture before firing to produce lithium transition metal oxide positive electrode materials. The precursor mixture may include a stoichiometric amount of one or more transition metal feedstocks, one or more lithium sources, and one or more dopants that are combined in a liquid-free environment. The methods disclosed herein may involve the use of a substrate with a porosity as a firing substrate or tray. The pelletization methods herein enhance lithiation kinetics, reduce lithium loss, and improve the positive electrode material's charge and discharge characteristics.

Negative Electrode and Secondary Battery Including the Same

Resumen de: US2025253319A1

A negative electrode including a negative electrode current collector; a negative electrode active material layer that is disposed on at least one surface of the negative electrode current collector and includes a negative electrode active material; and a coating layer including a negative-type (N-type) organic active material, wherein the negative electrode active material layer includes an inclined part provided in at least one side thereof by partitioning the negative electrode active material layer, and a flat part provided excluding the inclined part, the inclined part is inclined towards the surface of the negative electrode current collector, and the coating layer is disposed on at least a portion of the inclined part.

SYSTEM AND METHODS FOR MANUFACTURING A DRY ELECTRODE

Resumen de: US2025253307A1

A system and methods for manufacturing a dry electrode for an energy storage device are disclosed. The system includes a first dry electrode material delivery system configured to deliver a dry electrode material, a first calendering roll, a second calendering roll, and a controller. The second calendering roll is configured to form a first nip between the first calendering roll and the second calendering roll. The first nip is configured to receive the dry electrode material from the first dry electrode material delivery system, and form a dry electrode film from the dry electrode material. The controller is configured to control a rotational velocity of the second calendering roll to be greater than a rotational velocity of the first calendering roll.

ANODE MATERIAL AND BATTERY

Resumen de: US2025253310A1

An anode material and a battery provided. The anode material includes a carbon matrix and a silicon material. The anode material, tested by Raman spectroscopy, has a first characteristic peak at 520±10 cm−1 with a peak intensity of IA; a second characteristic peak at 960±10 cm−1 with a peak intensity of IB; and a third characteristic peak at 480±10 cm−1 with a peak intensity of IC, where IA, IB and IC have a relationship of 0.3≤IA/(IB+IC)≤0.6. The anode material provided has high initial Coulombic efficiency, high reversible capacity, and high expansion resistance.

MODULE PRESSING DEVICE AND PRESSING METHOD THEREFOR

Resumen de: WO2025161180A1

The present application discloses a module pressing device and a pressing method therefor. The module pressing device is provided with a pressing workstation for maintaining pressure on a battery module, the bottom of which is bonded to a heat dissipation plate. The module pressing device comprises a conveying line, a pressing apparatus, and a control apparatus. The conveying line passes through the pressing workstation and is used for conveying the battery module. The pressing apparatus is arranged corresponding to the pressing workstation, and comprises a jacking mechanism and a pressing mechanism opposite to each other in a first direction. The jacking mechanism is provided with a plurality of jacking portions movable in the first direction. The plurality of jacking portions are arranged in a second direction and are used to jack up the heat dissipation plate. The pressing mechanism is used to tightly press the battery module. The control apparatus is electrically connected to the jacking mechanism and the pressing mechanism, so as to control the jacking mechanism and the pressing mechanism to act. The heat dissipation plate is supported by means of the jacking mechanism, which cooperates with the pressing mechanism applying pressure to the battery module, so that thermally conductive adhesive coated between the heat dissipation plate and the battery module is evenly spread by means of pressing, thereby mitigating uneven coating of the thermally conductive adhesive and imp

ASSEMBLY APPARATUS, ASSEMBLY METHOD, AND BATTERY PROCESSING DEVICE

Resumen de: WO2025161342A1

The present application relates to an assembly apparatus, an assembly method, and a battery processing device. The assembly apparatus comprises: a bearing platform, wherein the bearing platform is provided with a bearing surface and the bearing surface is provided with a grab position; a first positioning mechanism, movably arranged on the bearing platform and used for positioning a wiring harness board onto the grab position; a second positioning mechanism, arranged on one side of the bearing platform and configured to be able to detect the current position of a battery, and, on the basis of a deviation value between the current position and a target position, assemble the wire harness board located on the grab position to the battery; and a conveyance mechanism that comprises a conveyance part and a lifting assembly, the lifting assembly comprising a tray that is provided with a third positioning piece protruding upward from the surface of the side of the tray facing the wire harness board; wherein, the second positioning mechanism is further configured to be able to move the wire harness board from the conveying mechanism to the bearing surface. In the present application, positioning is carried out twice, thus increasing the precision and efficiency with which the wire harness board is assembled to the battery.

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: US2025253412A1

A nonaqueous electrolyte secondary battery including: an electrode group including a first electrode having a first current collector, a second electrode having a second current collector, and a separator interposed therebetween; a nonaqueous electrolyte; all housed in a battery case. The first electrode and the second electrode are wound with the separator interposed therebetween, with an outermost layer of the first electrode disposed further outside than an outermost layer of the second electrode. The winding-finish end of the first electrode is an end of an excess portion which is wound around an outer surface of the first electrode on an inner layer side, without the second electrode interposed therebetween. The circumferential length L1 of the excess portion is 90% or more of the circumferential length L of the first electrode of the outermost layer. The excess portion has a functional layer disposed on a surface of the first current collector.

COMPLIANCE MEMBERS FOR COMPRESSING ELECTROCHEMICAL CELL STACKS

Resumen de: US2025253386A1

An assembly includes a housing defining an internal volume and an electrochemical cell stack including a plurality of electrochemical cells is disposed in the internal volume. A compliance member is disposed in the internal. The compliance member includes a base, and a plurality of biasing members extending from a surface of the. The plurality of biasing members are configured to exert a biasing force on the electrochemical cell stack so as to compress the electrochemical cell stack. A compliance member may additionally, or alternatively be disposed on an electrode stack included in an electrochemical cell and configured to exert a biasing force on the electrode stack.

BATTERY CUTTING APPARATUS AND METHOD

Resumen de: US2025253385A1

A battery cutting apparatus is provided. The apparatus includes a carrying assembly, a first cutter assembly, a first driving assembly, a second cutter assembly and a second driving assembly. The carrying assembly is configured to carry a battery to be cut. The first driving assembly is in transmission connection with at least one of the first cutter assembly or the carrying assembly and configured to make them move relative to each other along a first direction. The second driving assembly is in transmission connection with at least one of the second cutter assembly or the carrying assembly and configured to make them move relative to each other along a second direction perpendicular to the first direction. At least one of the first or second cutter assembly is a pressing and cutting cutter assembly, which is configured to be able to press and break the housing of the battery.

BATTERY

Resumen de: US2025253401A1

It is an object of the present disclosure to provide a battery capable of suppressing peeling of an anode current collector. The above object is achieved by providing a battery comprising layers in an order of a cathode layer, an electrolyte layer including a liquid electrolyte, and an anode layer, wherein the anode layer includes an anode active material layer and an anode current collector from the electrolyte layer side, the anode active material layer includes a granulated particle containing a Si particle with a pore, an average particle size D50 of the granulated particle is 5.5 μm or more and 7.2 μm or less, and the liquid electrolyte includes an ionic liquid.

HIGH VOLTAGE AND FLASH POINT ELECTROLYTE FOR LITHIUM METAL BATTERY

Resumen de: US2025253387A1

The present invention relates to a high-voltage lithium metal battery, characterized by its non-flammability due to the high flash point and high thermal stability of its specifically designed electrolyte, thereby ensuring its safe operation. In particular, the battery comprises an electrolyte with lithium salts and a novel diether compound with asymmetrical fluorination, developed based on electrolyte molecular design, synthesis and thermophysical properties characterization. The electrolyte with the asymmetrically fluorinated diether compound exhibits high thermal stability through high boiling point and high flash point, while also having a high working voltage, allowing high energy density designs and simultaneously optimizing operation safety by minimizing flammability and flash risks.

METHOD OF MANUFACTURING SOLID ELECTROLYTE USING WET MILLING

Resumen de: US2025253389A1

Disclosed is a method of manufacturing a sulfide-based solid electrolyte using wet milling. The method includes preparing electrolyte precursor materials; adding the electrolyte precursor materials and milling balls to a container; adding a nonpolar solvent to the container; milling the electrolyte precursor materials with the milling balls to synthesize a solid electrolyte; and removing the nonpolar solvent by filtration from the solid electrolyte.

CYLINDRICAL BATTERY CELL, BATTERY, ELECTRICITY CONSUMING DEVICE, MANUFACTURING METHOD AND MANUFACTURING SYSTEM

Resumen de: US2025253383A1

A cylindrical battery cell, a battery, an electricity consuming device, a manufacturing method and a manufacturing system are provided. The cylindrical battery cell includes a shell, including an opening; and an electrode assembly, disposed in the shell, the electrode assembly including a separator and a tab, and along an axial direction of the electrode assembly, the tab being located at one end of the electrode assembly and extending toward the opening, the tab including a first portion and a second portion, the second portion surrounding a periphery of the first portion, and the separator wrapping the second portion to isolate the second portion from the shell, wherein along the axial direction, the first portion extends beyond the second portion and the separator, and the second portion does not extend beyond the separator. The battery cell of the present application solves a problem of short circuit in the battery cell.

BILAYER COMPONENT FOR A LITHIUM BATTERY

Resumen de: US2025253393A1

A component for a lithium battery including a first layer including a lithium garnet having a porosity of 0 percent to less than 25 percent, based on a total volume of the first layer, and a second layer on the first layer and having a porosity of 25 percent to 80 percent, based on a total volume of the second layer, wherein the second layer is on the first layer and the second layer has a composition that is different from a composition of the first layer.

LOW-VOLTAGE LITHIUM BATTERY

Resumen de: US2025253388A1

The present application relates to a low-voltage lithium battery, including a circuit assembly, a middle plastic frame, a wound battery core assembly, a metal housing and an insulating sheath, wherein the circuit assembly includes a PCB, an outer conductive cap and an inner conductive cap, a front surface of the PCB is provided with a positive copper ring and a negative copper ring, the positive copper ring is electrically connected with the outer conductive cap, the negative copper ring is electrically connected with the metal housing, a back surface of the PCB is provided with a high-voltage input copper ring, the high-voltage input copper ring is electrically connected with the inner conductive cap, a positive tab of the wound battery core assembly is electrically connected with the inner conductive cap, and a negative tab is electrically connected with the metal housing.

SOLID ELECTROLYTE, ENERGY STORAGE DEVICE, AND METHOD FOR PRODUCING SOLID ELECTROLYTE

Resumen de: US2025253390A1

A solid electrolyte according to one aspect of the present invention is a solid electrolyte containing lithium, phosphorus, sulfur, aluminum, nitrogen, bromine, and iodine as constituent elements and having a crystal structure, wherein the solid electrolyte satisfies conditions (a), (b), or (c) below when a molar ratio of the lithium to the phosphorus is represented by r1, a molar ratio of a sum of the bromine and the iodine to the phosphorus is represented by r2, and a molar ratio of a sum of the bromine and the iodine to the nitrogen is represented by r3.3.≤r1-r2≤3.6and1.5≤r3≤100(a)2.8≤r1-r2<3.and2.≤r3≤100(b)2.6≤r1-r2<2.8and2.5≤r3≤100(c)

MATERIAL RECOVERY METHOD, LEACH TANK, APPARATUS, SYSTEM, AND USE

Resumen de: WO2025163099A1

There is provided method of recovering material from a source material comprising one or more target metals. Also provided is a leach tank for leaching a material from a source material comprising one or more target metals, as well as an apparatus for recovering material from a source material containing one or more target metals. Also described is a system for recovering material from a source material comprising one or more target metals as well as the use of any of the aforementioned to recover material from a source material. A lithium leach solution, a mixed metal precipitate, a composition, a cathode active material, and a graphite material are also described.

BATTERY MANUFACTURING SYSTEM AND BATTERY MANUFACTURING METHOD

Nº publicación: US2025253384A1 07/08/2025

Solicitante:

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

Resumen de: US2025253384A1

Systems and methods for manufacturing a battery are disclosed. One system may include: a first cutter configured to cut a first electrode sheet into a first electrode portion having a first length, the first electrode sheet comprising a first coated portion; a second cutter configured to cut a second electrode sheet into a second electrode portion having a second length, the second electrode sheet comprising a second coated portion; a winder configured to wind the first electrode portion, the second electrode portion, and a separator to form an electrode assembly; and an identification information assigning device configured to assign identification information to the electrode assembly based on: a cut count value of the first electrode sheet and/or a cut count value of the second electrode sheet; and/or a first pattern indication of the first electrode sheet and/or a second pattern indication of the second electrode sheet.