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PORTABLE BATTERY CHARGING SYSTEM AND METHODS OF EMPLOYING THEREOF

Resumen de: WO2025169241A1

Provided is a portable battery charging system including a stackable battery charging device (100) that comprises an energy storage matrix (102), a set of sensors (104), a plurality of retractable photovoltaic energy conversion surfaces (106), an energy exchange unit (108), and a processing unit (110) The energy storage matrix (102) comprises a multiplicity of modular charging units (120), an enclosure configured to support stacking and nesting of similar modular charging units in a vertical or horizontal arrangement, and a first conductive port (122) and a second conductive port (124) attached with each of the modular charging units (120) configured to establish electrical and communication connections with adjacent modular charging units. The processing unit (110) is configured to charge the energy storage matrix (102), monitor and regulate the charging and discharging process of the connected modular charging units (120), and communicate with remote server.

POSITIVE ELECTRODE SHEET, SOLID-STATE BATTERY, ELECTRIC DEVICE AND PREPARATION METHOD

Resumen de: WO2025167064A1

Provided are a positive electrode sheet, a solid-state battery, an electric device and a preparation method. The positive electrode sheet comprises a positive electrode current collector and an active film layer located on at least one side of the positive electrode current collector, wherein the active film layer comprises a positive electrode active region and a filling region located on at least part of the periphery of the positive electrode active region. The positive electrode active region comprises positive electrode active particles and a sulfide solid electrolyte, and the filling region comprises a positive electrode stabilizer. The positive electrode sheet has significantly improved air stability, and can also significantly inhibit the escape of hydrogen sulfide gas.

BATTERY AND ELECTRICAL APPARATUS

Resumen de: WO2025167049A1

A battery and an electrical apparatus, belonging to the technical field of batteries. The battery comprises a box body assembly and a plug-in assembly; the box body assembly comprises a first wall, the first wall having a first through hole; the plug-in assembly is mounted at the box body assembly, and comprises a connector and an adapter; the connector comprises a mounting portion and a power connection portion, the mounting portion being located at an outer side of the first wall; the power connection portion comprises an external power connection terminal located at a side of the mounting portion distant from the first wall, and an internal power connection terminal located at a side of the mounting portion near an internal portion of the box body assembly; the internal power connection terminal is disposed opposite the first through hole; the adapter is at least partially located outside the box body assembly, and supports the mounting portion, causing the mounting portion to be separate from the first wall.

BATTERY CELL WINDING SYSTEM AND WINDING PARAMETER COLLECTION METHOD

Resumen de: WO2025167045A1

Disclosed in the present disclosure are a battery cell winding system and a winding parameter collection method. The battery cell winding system comprises an upper computer and a control apparatus, the control apparatus being configured to control a winding process and acquire winding parameters, and the upper computer being configured to acquire, from the control apparatus and at a first time interval, a first indication signal that indicates whether winding has started, and acquire, when the first indication signal indicates that winding has started, winding parameters from the control apparatus at a second time interval, until the winding is completed, wherein the first time interval is greater than the second time interval.

POSITIVE ELECTRODE ACTIVE MATERIAL AND METHOD FOR MANUFACTURING A POSITIVE ELECTRODE ACTIVE MATERIAL

Resumen de: US2025256984A1

A positive electrode active material for lithium-ion rechargeable batteries comprises particles having Li, M′, and oxygen. M′ comprises Ni in a content x, wherein x≥80 at %, relative to M′; Co in a content y, wherein 0.01≤y≤20.0 at %, relative to M′; Mn in a content z, wherein 0≤z≤20.0 at %, relative to M′; Y in a content b, wherein 0.01≤b≤2.0 at %, relative to M′; Zr in a content c, wherein 0.01≤c≤2.0 at %, relative to M′; D in a content a, wherein 0≤ a≤5.0 at %, relative to M′. D is selected from B, Ba, Ca, Cr, Fe, Mg, Mo, Nb, S, Si, Sr, Ti, V, W, and Zn. The material comprises secondary particles, wherein each of the secondary particles consists of at least two primary particles and at most twenty primary particles.

POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE, LITHIUM-ION BATTERY, AND METHOD OF MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL

Resumen de: US2025256982A1

A positive electrode active material has a composition represented by LixNiaCObMncM1dM2eO2 and a TM interlayer distance (D) of 2.02 Å to 2.30 Å. In the composition, 0.1≤x≤1.5, 0.5≤a≤1.0, 0≤b≤0.3, 0≤c≤0.3, a+b+c=1.0, 0.0005≤d≤0.050, and 0.0005≤e≤0.050, M1 represents at least one type of element selected from the group including Ba, Pr, La, Y, Sr, Ce, Se, Hf, Rh, Zr, and Sn, and M2 represents at least one type of element selected from the group including W, Re, Sb, Sn, Ta, Os, Ir, Mo, Nb, Tc, Ru, Ga, Ag, Pd, Ge, As, Zr, In, Pt, Al, and Ti.

A COMPOSITE POWDER FOR USE IN THE NEGATIVE ELECTRODE OF A BATTERY AND A BATTERY COMPRISING SUCH A COMPOSITE POWDER

Resumen de: US2025256967A1

A composite powder for use in a negative electrode of a battery comprising composite particles, said composite particles comprising a carbon matrix material and silicon-based particles embedded in said carbon matrix material, said composite powder having a Raman spectrum, wherein a D band and a D'band, both corresponding to the carbon matrix material contribution, have their respective maximum intensity ID between 1330 cm−1 and 1360 cm−1 and ID′ between 1600 cm−1 and 1620 cm−1, wherein the ratio ID/ID′ is at least equal to 0.9 and at most equal to 4.0.

METHOD FOR PREPARING LITHIUM IRON PHOSPHATE AND USE THEREOF

Resumen de: US2025256964A1

The present disclosure provides a method for preparing lithium iron phosphate and use thereof. The method comprises: adding a mixed solution of ferrous salt and ammonium dihydrogen phosphate, a citric acid solution and a pH adjusting agent in parallel into a first reactor for reaction, and simultaneously extracting the materials in the first reactor to a second reactor, and adding a copper salt solution and a sodium hydroxide solution to the second reactor for reaction, and refluxing the materials in the second reactor into the first reactor, mixing the solid material obtained in the reaction with a lithium source, and calcining the mixture in an ammonia gas stream to obtain lithium iron phosphate. This method can prepare a lithium iron phosphate precursor with a spherical structure, thereby improving the electrochemical performance of the subsequently prepared lithium iron phosphate material, which has a relatively high conductivity.

SURFACE TREATED STEEL SHEET, METHOD FOR PRODUCING SURFACE TREATED STEEL SHEET, AND METHOD FOR PRODUCING BATTERY COMPONENT

Resumen de: WO2025169335A1

A surface treated steel sheet according to one embodiment of the present invention comprises: a base steel sheet; a Ni-containing layer disposed on the surface of the base steel sheet; and a Ni-W alloy layer disposed on the surface of the Ni-containing layer, wherein the Ni-containing layer has an Fe diffusion alloy layer and the Ni-W alloy layer is porous. A method for producing a surface treated steel sheet according to another embodiment of the present invention comprises: a step for performing Ni electroplating on a base steel sheet; a step for pickling the base steel sheet having the Ni plating layer; a step for performing Ni-W alloy electroplating on the base steel sheet having the Ni plating layer; and a step for annealing the base steel sheet having the Ni plating layer and the Ni-W alloy layer disposed thereon, wherein a 70-100 g/L sulfuric acid bath serves as a pickling bath during the pickling, the time for which the base steel sheet having the Ni plating layer is immersed in the bath during the pickling is 25-35 seconds, the annealing temperature during the annealing is 630-860 °C, and the annealing time during the annealing is 10-180 seconds.

METHOD FOR RECOVERING LITHIUM FROM ELECTROLYTES OF LITHIUM-ION BATTERIES

Resumen de: WO2025168862A1

The present invention belongs to the field of recovering lithium salts from used batteries, and more specifically, to a method for recovering the degradation products from a liquid electrolyte formed by at least one lithium salt from the black mass of used lithium batteries. The method comprises the steps of hydrolysis, filtering, evaporating, and optionally, thermal processing and subsequent selective dissolution, to thus obtain lithium salts from the electrolyte recovered from the used lithium battery. This method is capable of recovering lithium salts in a simple manner, and without the use of high temperatures or chemical reagents.

SYSTEM AND METHOD FOR REMOVING HEAT FROM A BATTERY PACK

Resumen de: WO2025168995A1

The disclosure relates to a system (100) for removing heat from a battery pack (102). The system (100) includes a cooling jacket (104) defining a flow path corresponding to an arrangement of battery cells in the battery pack (102), and a ferrofluid coolant configured to flow within the cooling jacket (104) along the flow path. The system (100) further includes a plurality of temperature sensors (106), each positioned in a region associated with a set of cells of the battery pack (102), and configured to detect a temperature of the region. The system (100) further includes a plurality of electromagnets (108), each associated with a temperature sensor, and configured to be activated based on a temperature detected by the associated temperature sensor. Activation of an electromagnet causes movement of the ferrofluid coolant towards the region in which the associated temperature sensor is positioned.

BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025167106A1

The present application relates to the technical field of batteries, and provides a battery and an electric device. The battery comprises a case, a plurality of battery cell groups, thermal management components, and a protective element. The case is provided with a first wall in a first direction. The plurality of battery cell groups are accommodated in the case, the plurality of battery cell groups are arranged in a second direction, each battery cell group comprises at least one battery cell, and the second direction intersects with the first direction. In the second direction, each thermal management component is arranged between two adjacent battery cell groups, and the thermal management component is configured to exchange heat with the battery cells. The protective element is arranged between the first wall and the plurality of battery cell groups in the first direction, and the protective element is configured to transfer external force borne by the first wall to the battery cell groups so as to protect the thermal management components, thereby reducing the impact of collision force generated on the first wall on the thermal management components, reducing the risk of leakage and other failures of the thermal management components during use, improving the use reliability of the battery, and prolonging the service life of the battery.

BATTERY CELL, BATTERY, AND ELECTRICAL APPARATUS

Resumen de: WO2025167058A1

A battery cell (10), a battery (1), and an electrical apparatus. In the battery cell (10), an insulating housing (13) comprises a base piece (131), main folding pieces (132), and side folding pieces (133). On a first side (135), transition corners (136) are connected to the main folding pieces (132) by means of first fold lines (1361) and connected to the side folding pieces (133) by means of second fold lines (1362), the base piece (131) is connected to extension folding pieces (134) by means of third fold lines (1341), the third fold lines (1341) are staggered with the straight lines where the first fold lines (1361) are located and/or staggered with the straight lines where the second fold lines (1362) are located when the insulating housing (13) is in an unfolded state, and the extension folding pieces (134) cover gaps between the corresponding side folding pieces (133) and the base piece (131). On this basis, the insulation effect of the insulating housing (13) can be improved.

BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025167055A1

A battery and an electric device. The battery (2) comprises a case (202), a battery cell group (7) and a blocking structure (8), wherein the case (202) is provided with an accommodating cavity; and the battery cell group (7) is located in the accommodating cavity, and the battery cell group (7) comprises at least one column of a plurality of battery cells (3) arranged in a first direction, each battery cell (3) comprising a first wall (31) and a second wall (32) connected to and intersecting with each other, the first wall (31) being provided with a pressure relief mechanism, and a gap (203) being provided between the second wall (32) and the case (202). When thermal runaway occurs in the battery, high-temperature ejecta is ejected from the pressure relief mechanism of the first wall (31); and at least part of the blocking structure (8) is located within the gap (203) to prevent at least some of emissions discharged via the pressure relief mechanism from entering the gap (203).

SOLID ELECTROLYTES AND METHODS FOR MAKING THE SAME

Resumen de: US2025256979A1

In accordance with the purpose(s) of the present disclosure, as embodied and broadly described herein, the disclosure, in one aspect, relates to solid chalcohalide electrolytes and the efficient synthesis of solid chalcohalide electrolytes. The electrolytes have the general formula AaMbNcXdYeSf and have relatively high ionic conductivity. The electrolytes can be a component of different types of batteries. The process of synthesizing the electrolytes can be done with cost-effective materials, which is useful for scaling-up production of batteries such as all-solid-state batteries.

POSITIVE ACTIVE MATERIAL, METHOD FOR PREPARING SAME, POSITIVE ELECTRODE PLATE CONTAINING SAME, SECONDARY BATTERY, AND ELECTRICAL DEVICE

Resumen de: US2025256965A1

This application provides a positive active material. The positive active material is a composite of NaxRy(PO4)z(P2O7)k and C, where 1≤x≤7, 1≤y≤4, 1≤z≤2, 1≤k≤4, and R includes at least one of Mg, Al, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Sn, Hf, Ta, W, or Pb; and a water content of the positive active material is not higher than 1600 ppm. This application further provides a method for preparing the positive active material, a positive electrode plate containing the material, a secondary battery, and an electrical device. The positive active material of this application contains a relatively low water content.

CORE-SHELL-TYPE FLUORINE-BASED RESIN PARTICLES HAVING IMPROVED FLOWABILITY AND FLOCCULATION, AND PREPARATION METHOD

Resumen de: US2025257204A1

A dispersion includes core-shell-type fluorine-based resin particles having improved flowability and cohesion properties. The particles, a mixture or slurry (dispersion) including the particles, and a preparation method for the particles, mixture, and slurry. The particles each have an acryl monomer added to a perfluorinated polymer particle dispersion so as to have a perfluorinated polymer core and an acrylic polymer shell.

ELECTRODE DRIVING APPARATUS

Resumen de: US2025256933A1

The electrode driving apparatus is for driving an electrode that is coated with an active material, and includes a main base, a sub base spaced apart from and parallel to the main base, a shaft extending from the sub base toward the opposite side to the main base, an electrode driving roller that rotates about the shaft and is in contact with the electrode, and a position adjuster that is located between the main base and the sub base and regulates a gap between the main base and the sub base.

BATTERY GRABBING DEVICE, BATTERY PRODUCTION LINE, AND CONTROL METHOD FOR BATTERY GRABBING DEVICE

Resumen de: US2025256926A1

A battery grabbing device, a battery production line, and a control method for a battery grabbing device are disclosed, where the battery grabbing device can increase the level of automation of the battery grabbing device. By using the control method for the battery grabbing device, qualified batteries can be grabbed quickly and accurately. The battery grabbing device includes a support, a workbench, a detection apparatus, a battery grabbing apparatus, and a tray grabbing apparatus, where the workbench is configured to carry a tray and a battery in the tray, the detection apparatus is disposed on the support and configured to detect whether the battery on the workbench is qualified, the battery grabbing apparatus is configured to grab the qualified battery, and the tray grabbing apparatus is at least configured to grab the tray after the battery grabbing apparatus grabs the qualified battery.

COMPOSITE COPPER CURRENT COLLECTOR HAVING HIGH MECHANICAL PROPERTIES, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: WO2025168017A1

A composite copper current collector having high mechanical properties, and a preparation method therefor and a use thereof. The composite copper current collector comprises a polymer film layer (1); and conductive layers (3) located on the surfaces of two sides of the polymer film layer (1). Each conductive layer (3) comprises a seed copper layer (31) and a thickened copper layer (30), the thickened copper layer comprises coarse-grained copper layers (301) and fine-grained copper layers (302), the coarse-grained copper layers (301) and the fine-grained copper layers (302) are alternately stacked, and a coarse-grained copper layer (301) is located on at least part of the surface of the seed copper layer (31). In the provided composite copper current collector, each fine-grained copper layer (302) provides good tensile strength and yield strength, each coarse-grained copper layer (301) provides a good elongation rate, and the two improve the mechanical properties of the composite copper current collector, enhancing the stability of the composite copper current collector during battery processing and cycling.

BATTERY COVER PLATE STRUCTURE AND BATTERY

Resumen de: WO2025167950A1

The present application relates to the technical field of batteries, and discloses a battery cover plate structure and a battery. The battery cover plate structure comprises: a cover plate body; a terminal having a body portion indirectly abutting the surface of a side of the cover plate body; and an insulator disposed between the cover plate body and the body portion, the insulator having a barrier portion spacing the cover plate body from the body portion, and a wrapping portion extending from the barrier portion toward the body portion and surrounding the outer periphery of the body portion, wherein in a plane parallel to the plane of the body portion, the wrapping portion extends toward the circumferential side surface of the body portion to form a plurality of limiting teeth, which are either in contact with or spaced apart from the circumferential side surface of the body portion. The battery cover plate structure provided in the present application can facilitate the assembly of the body portion and the insulator, preventing problems such as swaying of the terminal after assembly and thus contributing to the sealing performance of the battery cover plate structure; and can avoid interference fit between the body portion and the insulator caused by machining dimensional errors, eliminating assembly difficulties.

BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025168159A1

A battery (100) and an electric device. The battery (100) comprises a battery cell (20), a box (10) and a protective plate (30), wherein an electrode terminal (201) is provided on one side of the battery cell (20) in a first direction (X); the box (10) is provided with an accommodating space (103) for accommodating the battery cell (20); and the protective plate (30) is arranged in the accommodating space (103) and is located on one side of the battery cell (20) in the first direction (X), and the protective plate (30) comprises a main body portion (301) and a cushioning portion (302), which are connected to each other, the cushioning portion (302) protruding from the side of the main body portion (301) facing the battery cell (20) and being opposite the electrode terminal (201) in the first direction (X). In the above structure, the cushioning portion (302) of the protective plate (30) protrudes from the side of the main body portion (301) facing the battery cell (20) and is opposite the electrode terminal (201) in the first direction (X), so that when the protective plate (30) is impacted and deforms, the cushioning portion (302) can come into contact with the electrode terminal (201) of the battery cell (20) having a good strength, and the cushioning portion (302) can cushion the action forces between the protective plate (30) and the battery cell (20), causing the electrode terminal (201) of the battery cell (20) to be less prone to deforming, and thereby facilitating an

SYSTEM AND METHOD FOR DETACHING BATTERY CELL FROM TRAY

Resumen de: WO2025167053A1

A system (1100) and method for detaching a battery cell from a tray. The method for detaching a battery cell from a tray is applied to electrolyte injection upper computers (1101) and (122), the detaching method comprising: in response to a battery cell into which an electrolyte has been injected reaching a tray detaching station, acquiring a tray code of a tray, the tray being used for bearing the battery cell; on the basis of the tray code, determining in a tray data table acquired at a code reading station position index information of the battery cell in the tray, the code reading station being a station preceding the tray detaching station; and, on the basis of the position index information and the tray code, controlling a tray detaching mechanism (1103) deployed at the tray detaching station to separate the tray from the battery cell, such that the battery cell enters the next station in an electrolyte injection process.

NEGATIVE ELECTRODE MATERIAL AND BATTERY

Resumen de: WO2025167099A1

A negative electrode material and a battery. The negative electrode material comprises a carbon matrix and a silicon material. When the negative electrode material is tested by means of Raman spectroscopy, the negative electrode material has a first characteristic peak at 520±10 cm-1, the peak intensity of the first characteristic peak being IA, the negative electrode material has a second characteristic peak at 960±10 cm-1, the peak intensity of the second characteristic peak being IB, and the negative electrode material has a third characteristic peak at 480±10 cm-1, the peak intensity of the third characteristic peak being IC, wherein IA, IB and IC have the following relationship: 0.3≤IA/(IB+IC)≤0.6. The negative electrode material has high initial coulombic efficiency, high reversible capacity and high expansion resistance.

POSITIVE ELECTRODE SHEET, SECONDARY BATTERY AND ELECTRIC DEVICE

Nº publicación: WO2025167087A1 14/08/2025

Solicitante:

CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
CONTEMPORARY AMPEREX TECH HONG KONG LIMITED [CN]
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\u9999\u6E2F\u65F6\u4EE3\u65B0\u80FD\u6E90\u79D1\u6280\u6709\u9650\u516C\u53F8

Resumen de: WO2025167087A1

Provided is a positive electrode sheet, comprising a positive electrode current collector and a positive electrode film layer, wherein the positive electrode film layer is arranged on at least one surface of the positive electrode current collector, the positive electrode film layer comprises a first positive electrode film layer and a second positive electrode film layer, and the first positive electrode film layer is located between the positive electrode current collector and the second positive electrode film layer. The first positive electrode film layer comprises a first positive electrode active material, the specific surface area of the first positive electrode active material is 12 m2/g to 16 m2/g, and on the basis of the total weight of the first positive electrode active material, the carbon content of the first positive electrode active material is 1.0 wt% to 1.5 wt%; and the second positive electrode film layer comprises a second positive electrode active material, the specific surface area of the second positive electrode active material is 6 m2/g to 19 m2/g, and on the basis of the total weight of the second positive electrode active material, the carbon content of the second positive electrode active material is 1.1 wt% to 2.1 wt%.