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MANUFACTURING DEVICE AND METHOD FOR ELECTRODE ASSEMBLY

Resumen de: WO2025086825A1

The present application provides a manufacturing device and method for an electrode assembly. The manufacturing device for an electrode assembly comprises a winding pin and a heating component, wherein the winding pin is used for winding an electrode sheet and a separator to form a winding structure, and the heating component is configured to be inserted into the winding center of the winding structure and heat the winding structure. By means of the manufacturing device, the heating component can heat the winding structure at the winding center of the winding structure, such that at least some of ion channels in the separator in the inner ring of the winding structure are melt and close, thereby blocking ion shuttling, facilitating reduction of lithium deposition in the winding structure, and effectively lowering the risk of lithium deposition in a battery.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: WO2025086770A1

A battery cell (20), a battery (100), and an electric device. The battery cell (20) comprises a casing (21), an electrode assembly (22), a first insulating member (23), and electrode terminals (24); the electrode assembly (22) comprises tabs (221); the casing (21) is used for accommodating the electrode assembly (22); the casing (21) comprises a wall portion; the first insulating member (23) is arranged between the wall portion and the electrode assembly (22); the electrode terminals (24) are arranged on the wall portion; and the electrode terminals (24) pass through the first insulating member (23) and are directly connected to the tabs (221).

SYSTEM AND METHOD FOR IMPROVED BATTERY STRUCTURAL PROPERTIES

Resumen de: WO2025091014A1

A polymer electrolyte can be formed from (e.g., by polymerizing) a mixture that includes oligomer(s), additive(s), solvent(s), salt(s), and/or any suitable components. The polymer electrolyte can further or alternatively include monomer(s) (e.g., a stiffening monomer that in solution or incorporated into a cured polymer modifies a mechanical property such as flexural modulus of the battery cell; adhesion monomers such as a monomer that interacts with one or more surface within a battery to modify or improve adhesion of the electrolyte and the surface; etc.).

ADDITIVE FOR IRON-AIR BATTERIES

Resumen de: WO2025090823A1

An alkaline electrolyte including: an alkaline solution having a total hydroxide concentration of greater than 1 molar, based on a total volume of the alkaline electrolyte; and an additive including a trivalent element, wherein a concentration of the trivalent element is 1 millimolar to 5 molar, based on a total volume of the alkaline electrolyte, sulfur, and tin.

ELECTROLYTES FOR FAST-CHARGING BATTERIES

Resumen de: WO2025090356A1

Disclosed herein is an electrolyte solution comprising: (a) about 5 wt % to about 60 wt % of a fluorinated ester; (b) greater than 0 wt % to less than 100 wt % of at least one solvent selected from fluoroethylene carbonate, difluoroethylene carbonate, ethyl methyl carbonate, dimethyl carbonate, diethyl carbonate, methyl (2,2,2-trifluoroethyl) carbonate, propylene carbonate, trifluoropropylene carbonate, butylene carbonate, methyl acetate (MA), ethyl acetate (EA), methyl propanoate (MP); (c) at least one salt; wherein the wt % is calculated based on a total weight of a) and b); and wherein the electrolyte solution is substantially free of ethylene carbonate (EC). Also disclosed are batteries comprising such electrolytes. Also disclosed are methods of making the disclosed herein electrolytes and batteries.

BATTERY ASSEMBLY FOR WIRELESS FIELD DEVICES

Resumen de: WO2025090230A1

An intrinsically-safe battery assembly (200) for field devices, includes an intrinsically-safe battery (206) and polymeric chassis (204). In an example, the polymeric chassis (204) is removably coupled to the intrinsically-safe battery (206) and has at least one retention mechanism (224, 226) configured to engage the intrinsically-safe battery (206). In another example, the polymeric structure (204) has at least one battery ejection (228) mechanism configured to eject the intrinsically-safe battery (206). A field device (100) is also provided.

PRE-LITHIATED ANODE ROLL TEMPERATURE CONTROL BY UTILIZING LIQUID OR INERT LIQUIFIED GAS TO ACTIVELY COOL THE WEB

Resumen de: WO2025090288A1

Systems and methods for manufacturing energy storage devices are provided. In one or more implementations, which can be combined with other implementations, a temperature control fluid, for example, liquid electrolyte, inert liquified gas, gas, air, cooled gas, or chilled liquid spray, is used to actively cool the anode material. The temperature control fluid can be refrigerated to provide additional cooling benefit. The temperature control fluid can be selected from any liquid electrolyte compatible with the battery or the liquid electrolyte itself. The temperature control fluid can be applied before, during, or after a substrate independent direct transfer process to moderate the temperature of the web.

INFORMATION PROCESSING METHOD, INFORMATION PROCESSING DEVICE, AND INFORMATION PROCESSING PROGRAM

Resumen de: WO2025088930A1

This information processing device displays a plurality of abnormal state items of a plurality of batteries in time series for each battery, and displays a plurality of state items of a battery in which an abnormality indicated by one abnormal state item has occurred when detecting selection of one abnormal state item among the plurality of abnormal state items, and the display of the plurality of state items includes display of a plurality of pieces of history information corresponding to the plurality of state items in a first period before and after the abnormality occurrence time point at which the abnormality indicated by the one abnormal state item occurred.

ION CONDUCTOR, SECONDARY BATTERY, AND METHOD FOR MANUFACTURING ION CONDUCTOR

Resumen de: WO2025088917A1

Disclosed is an ion conductor which includes a plurality of cations, a plurality of anions, and vacancies in a crystal, wherein an isotropic atomic displacement parameter of an anion having the largest isotropic atomic displacement parameter among the plurality of anions is 2 Å2 or more. The plurality of cations includes conductive ions which are able to be conducted in the crystal and non-conductive ions which are not conducted in the crystal, and at least one of a conductive ion, a non-conductive ion, and a vacancy is present in a conduction site through which cations are conducted. The sum of the occupancy rates of the conductive ions, the non-conductive ions, and the vacancies in the conduction site is 100%, the occupancy rate of the conductive ions is within the range of 10% to 70%, the occupancy rate of the non-conductive ions is within the range of 10% to 50%, and the occupancy rate of the vacancies is within the range of 8% to 50%.

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: WO2025089182A1

Provided is a nonaqueous electrolyte secondary battery capable of improving coulombic efficiency while omitting a conventional negative electrode active material layer. A nonaqueous electrolyte secondary battery according to an embodiment includes a negative electrode, a positive electrode, and a nonaqueous electrolyte. The nonaqueous electrolyte is a nonaqueous electrolyte in which an ionic crystal is dissolved in an ionic liquid. The negative electrode has a current collector and a silicon-containing layer disposed on the current collector, and the layer does not contain an organic binder.

BATTERY MODULE

Resumen de: WO2025088673A1

The present invention provides a battery module which is excellent in terms of the cooling efficiency of a battery cell, and is capable of conforming to expansion and contraction of the battery cell. This battery module (100) is provided with a plurality of battery cells (1), in each of which the thickness in the stacking direction changes due to charging/discharging. With respect to battery cells (1) adjacent to each other, tab leads (30) thereof are connected to each other by means of a flexible bus bar (40) that is capable of conforming to a change in the thickness in the stacking direction. A cooling pipe (60), through which a coolant flows, is attached to the tab lead (30) in such a manner that the cooling pipe (60) is able to cool the tab lead (30). The cooling pipe (60) is affixed to the tab lead (30) by means of a heat transfer member (50) that fills the gap between the tab lead (30) and the cooling pipe (60) itself. The cooling pipe (60) has: a plurality of crossover pipes (64); and a flexible pipe (63) that connects ends of the plurality of crossover pipes (64) so that the coolant flows back, and has flexibility with which it is possible to conform to a change in the thickness of the battery cells (1) in the stacking direction.

COMPOUND AND USE THEREOF, NON-AQUEOUS ELECTROLYTE SOLUTION AND BATTERY

Resumen de: WO2025086771A1

In order to solve the problem that existing film-forming additives for electrolyte solutions have increased battery impedance and insufficient film-forming stability, the present invention provides a compound selected from a compound represented by structural formula 1: formula 1, wherein x is an integer of 0 to 3, y is an integer of 0 to 3, 1 ≤ x + y, a is an integer of 0 to 4, b is an integer of 0 to 4, c is an integer of 0 to 4, 1 ≤ a + b + c, R1, R2, and R3 are each independently selected from alkylene having a carbon atom number of 1-4, R4 and R5 are each independently selected from hydrogen or alkyl having a carbon atom number of 1-6, and R6, R7, R8, R9, R10, R11, R12, R13, and R14 are each independently selected from alkyl having a carbon atom number of 1-6. In addition, further disclosed in the present invention are a non-aqueous electrolyte solution comprising the compound and a battery. The compound provided by the present invention is beneficial to improving the stability of a passivation film on a surface of an electrode material and the uniformity of the thickness of the film and improving the stability under high-temperature conditions.

ADHESIVE PASTE@GROUND TOBACCO ASH COMPOSITE MATERIAL, PREPARATION THEREOF, AND USES THEREOF IN NOVEL TOBACCO PRODUCT AND TOBACCO SHEET

Resumen de: WO2025086877A1

The present application relates to the field of preparation of novel tobacco sheets, and in particular to a preparation method for an adhesive paste@ground tobacco ash composite material. The preparation method comprises: performing first-stage coating on a vaporizing agent and an inorganic material in an adhesive paste preparation tank to prepare an adhesive paste; then mixing the adhesive paste with a hydrophobic agent, so as to achieve second-stage coating; and then performing third-stage coating on the adhesive paste having undergone the second-stage coating and ground tobacco ash in a trough mixer to prepare the adhesive paste@ground tobacco ash composite material. The present application further comprises the composite material prepared by means of the preparation method, and uses of the composite material in a novel tobacco and a tobacco sheet. In the present application, the preparation method can effectively mitigate the problem of moisture absorption of the sheet, and can promote the uniform and effective release of the vaporizing agent.

CONDUCTIVE BUSBAR AND POWER BATTERY

Resumen de: WO2025086883A1

A conductive busbar, comprising: a body (1), the body (1) extending in a first direction (X), and the body (1) comprising a first end portion (2) and a second end portion (3) connected in the first direction (X); a first folding portion (10) connected to the side of the first end portion (2) facing away from the second end portion (3); and a second folding portion (20) connected to the side of the second end portion (3) facing away from the first end portion (2), wherein the first folding portion (10) and the second folding portion (20) are both stacked with the body (1) in a second direction (Y), there is a gap between the first folding portion (10) and the second folding portion (20) in the first direction (X), and the first direction (X) intersects with the second direction (Y). A power battery comprising the conductive busbar.

ELECTROLYTE COMPRISING SOLVENT WITH NON-FLUORINE HALOGEN SUBSTITUTE AND BATTERIES COMPRISING SAME

Resumen de: WO2025090284A1

Disclosed is an electrolyte comprising a lithium salt and an organic solvent with a high boiling point, wherein the organic solvent is an ether comprising a non-fluorine halogen substitute. In some embodiments, the organic solvent has a formula of X-CH2-CH2OCH2n-CH2Y or Z-CH2-CH2OCH2n-CH3-mFm, and each formula comprises at least one selected from Cl, Br, I, and CN, wherein 1 ≤ n ≤15, 1≤ m ≤ 3, X and Y are each independently selected from the group consisting of H, CH3, C2H5, Cl, Br, I, and CN, Z is selected from the group consisting of Cl, Br, I, and CN. In some embodiments, the organic solvent is an ether with a cyclic structure. In one embodiment, the high boiling point is 105 oC or above. The electrolyte and an electrochemical device comprising the same exhibit an improved thermal stability and safety.

METHOD FOR RECOVERING LITHIUM

Resumen de: WO2025089927A1

A method for recovering lithium according to the present invention comprises the steps of: preparing a lithium sulfate aqueous solution; obtaining a lithium hydroxide aqueous solution from the lithium sulfate aqueous solution through a lithium sulfate-lithium hydroxide conversion process; obtaining crystallized lithium hydroxide monohydrate and a crystallized filtrate from the lithium hydroxide aqueous solution through a crystallization process; and carbonating the crystallization filtrate to obtain lithium carbonate, wherein in the step of obtaining a lithium hydroxide aqueous solution from the lithium sulfate aqueous solution, if the lithium hydroxide aqueous solution satisfies equations 1 and 2, the method further comprises a step of adding sodium hydroxide to the lithium hydroxide aqueous solution.

POSITIVE ELECTRODE FOR SECONDARY BATTERY, AND SECONDARY BATTERY COMPRISING SAME

Resumen de: WO2025089920A1

The present invention relates to a positive electrode for a secondary battery and a secondary battery comprising same and, more specifically, to a positive electrode for a secondary battery, comprising a first positive electrode layer and a second positive electrode layer.

COMPOSITE MATERIAL

Resumen de: WO2025089836A1

Disclosed in the present specification are a composite material and a use thereof. In one example, the composite material is a composite material in which a metal plate and a plastic plate are bonded to each other, and may be a composite material having a cavity at the bonding interface between the metal plate and the plastic plate. According to the disclosure in the present specification, when the composite material is used as a heat dissipation material (for example, a heat sink) in which a fluid such as a cooling medium moves into the cavity, the cavity can be designed so that the fluid can perform stable and effective heat exchange with a heating element, etc. In addition, according to the disclosure in the present specification, high airtightness can be secured in the cavity so that the heat exchange performance can be maintained for a long period of time without loss. According to the disclosure in the present specification, even when the composite material is manufactured to have a large area or a large size, excellent heat exchange performance, and durability due to airtightness can be exhibited. Disclosed in the present specification is also a use of the composite material.

A NOVEL PRISMATIC FORM FACTOR BASED BATTERY CELL

Resumen de: WO2025088416A1

The present invention relates to a prismatic form factor based battery cell (100). The body is a prismatic shaped body that provides a maximum flat face as a cell terminal as said prismatic shaped body reorients a flow of current. The body encompasses an anode layer (1), a separator layer (2), a cathode layer (3), an adhesion layer (5), an upper current collector layer (6) and a lower current collector layer (4). The anode layer (1), the separator layer (2), the cathode layer (3), the upper current collector layer (5), the adhesion layer (4), and the lower current collector layer (6) are affixed to each other via at least one of a mechanical contact process and a deposition process.

INSPECTION SYSTEM, DISPLAY DEVICE, INSPECTION METHOD, PROGRAM, METHOD FOR MANUFACTURING LAMINATE, AND CONTROL DEVICE

Resumen de: WO2025088790A1

The purpose of the present invention is to appropriately detect local deformation of a layer. An inspection system (100) comprises: an emitting device (2) capable of emitting radiation; an imaging device (4) that outputs data indicating the internal structure of a laminate as obtained by the emitting device (2) emitting radiation toward the laminate; and a control device (5). The control device (108) outputs information relating to deformation of some of a first layer of the laminate on the basis of the data.

BATTERY PACK

Resumen de: WO2025089001A1

The present invention realizes a configuration for quickly measuring the temperature in each unit cell in a battery pack in which a plurality of unit cells are arranged.　Provided is a battery pack in which there are arranged a plurality of unit cells in which a power generation element is accommodated within a container and sealed with a metal lid 501, the battery pack being characterized in that a heat transfer member 20 is fixed to the lid 501, an insulation layer 21 having first wiring is fixed to the heat transfer member 20, and a temperature detection sensor (thermistor) 30 is connected to the first wiring.

A MULTI-DIMENSIONAL ELECTRODE ARCHITECTURE BASED ELECTROCHEMICAL CELL

Resumen de: WO2025088415A1

The present invention provides a multi-dimensional electrode architecture based electrochemical cell (100) that provides higher volumetric and gravimetric energy density by eliminating the need for metallic substrates. The multi-dimensional electrode architecture based electrochemical cell comprises of a plurality of layers including but not limited to a lower current collector layer (6), an anode layer (1), a separator layer (2), a cathode layer (3), an adhesion layer (4), and an upper current collector layer (5).

POWER SYSTEM, NON-RECHARGEABLE BATTERY PACK, AND RECHARGEABLE BATTERY PACK

Resumen de: WO2025088401A1

A non-rechargeable battery pack for use with a device includes a non-rechargeable battery connector and a first battery pack transistor. The rechargeable battery connector is configured to detachably and electrically connect the rechargeable battery pack to the device. The non- rechargeable battery connector includes a first terminal and second terminal. The first battery pack transistor includes a first gate electrically connected to the first terminal and a first drain electrically connected to the second terminal. When the non-rechargeable battery connector is detachably and electrically connected to the device, the first gate of the first battery pack transistor is configured to receive a high voltage signal through the first terminal. Upon receiving the high voltage signal, the first battery pack transistor switches on causing the second terminal to transmit a low voltage signal to the device, such that the low voltage signal indicates that the non- rechargeable battery pack is non-rechargeable.

NEGATIVE ELECTRODE SHEET, BATTERY CELL AND ELECTRIC DEVICE

Resumen de: WO2025086600A1

A negative electrode sheet, a battery cell and an electric device. The negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer arranged on at least one side of the negative electrode current collector; the negative electrode film layer comprises at least one negative electrode active material layer containing a negative electrode active material, one of the at least one negative electrode active material layer comprises a first area and a second area, and in the thickness direction of the negative electrode sheet, the first area at least covers the two ends of the negative electrode current collector in a first direction; the thickness direction is perpendicular to the first direction; the second area and the first area are continuously arranged in the first direction, the second area is sandwiched in the first area, and the second area covers part of the negative electrode current collector in the thickness direction; the compaction density of the negative electrode active material located in the first area is Ag/cm3, the compaction density of the negative electrode active material located in the second area is Bg/cm3, and B/A<1.

NA2TI7O15 DOPED NA2TI3O7 SODIUM TITANATE ELECTRODE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Nº publicación: WO2025086601A1 01/05/2025

Solicitante:

QINGDAO UNIV [CN]
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Resumen de: WO2025086601A1

A Na2Ti7O15 doped Na2Ti3O7 sodium titanate electrode material, and a preparation method therefor and a use thereof. The electrode material has a porous block structure formed by stacking nanorods. The electrode material is synthesized by a simple solid-phase method, and is obtained by carrying out ball milling on precursors sodium carbonate and anatase-phase titanium dioxide in proportion, and then carrying out microwave sintering in air; the addition of Na2Ti7O15 increases the exposure of (100) sodium storage crystal face and decreases the exposure of (003) crystal face of Na2Ti3O7 sodium titanate; and Na2Ti7O15 has four TiO6 octahedrons in one structural unit, and has more sodium storage sites and wider sodium-ion diffusion channels, thereby improving the specific capacity and rate performance of the material. Upper and lower layers of TiO6 octahedrons in Na2Ti7O15 are connected to each other, such that the structure is more stable in a sodium-ion intercalation/deintercalation process, thereby improving the long cycle stability of the material.