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1344
resultados
Última actualización
09/09/2025 [07:15:00]
Resultados 250 a 275 de 1344
Resumen de: US2025276919A1
Copper-boron-ferrite (Cu—B—Fe) composites may be prepared and immobilized on graphite electrodes in a silica-based sol-gel, e.g., from rice husks. Different bimetallic loading ratios can produce fast in-situ electrogeneration of reactive oxygen species, H2O2 and ·OH, e.g., via droplet flow-assisted heterogeneous electro-Fenton reactor system. Loading ratios of, e.g., 10 to 30 wt. % Fe3+ and 5 to 15% wt. Cu2+, can improve the catalytic activities towards pharmaceutical beta blockers (atenolol and propranolol) degradation in water. Degradation efficiencies of at least 99.9% for both propranolol and atenolol in hospital wastewater were demonstrated. Radicals of ·OH in degradation indicate a surface mechanism at inventive cathodes with correlated contributions of iron and copper. Copper and iron can be embedded in porous graphite electrode surface and catalyze the conversion of H2O2 to ·OH to enhance the degradation. Inventive cathodes can be stable catalytically after 20 or more cycles under neutral and acidic conditions.
Resumen de: US2025276920A1
Copper-boron-ferrite (Cu—B—Fe) composites may be prepared and immobilized on graphite electrodes in a silica-based sol-gel, e.g., from rice husks. Different bimetallic loading ratios can produce fast in-situ electrogeneration of reactive oxygen species, H2O2 and ·OH, e.g., via droplet flow-assisted heterogeneous electro-Fenton reactor system. Loading ratios of, e.g., 10 to 30 wt. % Fe3+ and 5 to 15% wt. Cu2+, can improve the catalytic activities towards pharmaceutical beta blockers (atenolol and propranolol) degradation in water. Degradation efficiencies of at least 99.9% for both propranolol and atenolol in hospital wastewater were demonstrated. Radicals of ·OH in degradation indicate a surface mechanism at inventive cathodes with correlated contributions of iron and copper. Copper and iron can be embedded in porous graphite electrode surface and catalyze the conversion of H2O2 to ·OH to enhance the degradation. Inventive cathodes can be stable catalytically after 20 or more cycles under neutral and acidic conditions.
Resumen de: US2025276911A1
The present disclosure relates to a positive electrode active material and a recycling method thereof. In the positive electrode active material and a recycling method thereof, the positive electrode active material is at least one type selected from a lithium nickel oxide (LNO)-based positive electrode active material, a nickel-cobalt-manganese (NCM)-based positive electrode active material, a nickel-cobalt-aluminum (NCA)-based positive electrode active material and a nickel-cobalt-manganese-aluminum (NCMA)-based positive electrode active material, in which single particles are included, a content of F is about 5,700 mg/kg to 6,500 mg/kg, an a-axis lattice parameter measured by an XRD analysis is about 2.8753 Å to 2.8772 Å, a c-axis lattice parameter is about 14.243 Å to 14.255 Å, a cell volume is about 101.968 Å3 to 102.168 Å3 and a crystallite size is greater than about 130 nm and equal to or less than 136 nm.
Resumen de: US2025276913A1
The present application provides a positive electrode active material, a preparation method therefor, a secondary battery, and an electrical apparatus. The chemical formula of the positive electrode active material is LiaNixCoyM1−x−yO2, where M comprises one or more of Mn, Al, B, Zr, Sr, Y, Sb, W, Ti, Mg and Nb, 0.55≤x≤1.0, 0≤y≤0.45, 0.8≤a≤1.2, the positive electrode active material being a hollow structure, and the inner diameter d1 of the hollow structure being 0.3 μm-5 μm.
Resumen de: WO2025180005A1
An electric device (2000), comprising a battery pack (1000). The battery pack (1000) comprises a battery cell (100). The battery cell (100) comprises a cover plate assembly (20), a casing (10), an electrode core (30), a spacer ring (40), and a monitoring module (50), wherein the electrode core (30) is fixed in an inner cavity enclosed by the cover plate assembly (20) and the casing (10); the spacer ring (40) is fixed to the side of the electrode core (30) facing the cover plate assembly (20); the electrode core (30) is provided with a tab (31), the tab (31) passing through the spacer ring (40) and being fixed to the cover plate assembly (20); and the monitoring module (50) is fixed to the cover plate assembly (20) or the spacer ring (40), and the monitoring module (50) is electrically connected to the tab (31) so as to supply power to the monitoring module (50).
Resumen de: WO2025179978A1
The present application discloses a battery and an electric device. The battery comprises battery packs and compression assemblies. A plurality of rows of battery packs are sequentially arranged in a first direction; and each row of battery packs comprises a plurality of battery cells which are sequentially arranged and are electrically connected to each other in a second direction, wherein the first direction and the second direction intersect with each other. The compression assemblies are arranged on end covers of the battery cells of the battery packs; each compression assembly covers two adjacent rows of battery packs, and a heat exchange medium is provided in the compression assembly. The compression assemblies can enhance the mechanical strength of the battery, thereby improving the stability of the battery. In addition, heat exchange can be performed on the battery cells by means of the heat exchange medium, so that the battery cells can operate at an appropriate temperature, thereby improving the cycle performance of the battery, simplifying the structure, saving the space, and improving the energy density of the battery.
Resumen de: WO2025179779A1
A box body beam (100), a battery pack box body (200) and a battery pack (300), which ameliorate the technical problem in the prior art that whole plate structures of box body beams result in long manufacturing periods. The box body beam (100) comprises a first main body (10) and a second main body (20), the second main body (20) being arranged to separate from the first main body (10); at least one of the cross section of the first main body (10) and the cross section of the second main body (20) is provided with an opening (K), the first main body (10) and the second main body (20) being connected at two sides of the opening (K) and sealing the opening (K).
Resumen de: WO2025179802A1
A battery (100) and an electric device. The battery (100) comprises a case (10), battery cells (20), a thermal management assembly (30), a conductive member (40), and a buffer structure (50). The case (10) is provided with an accommodating cavity (10a). The battery cells (20) are arranged in the accommodating cavity (10a). The thermal management assembly (30) is arranged in the accommodating cavity (10a) and is configured to perform heat exchange with the battery cells (20), and the thermal management assembly (30) comprises at least two heat exchange members (31). The conductive member (40) is electrically connected between each heat exchange member (31) and the case (10). The buffer structure (50) is arranged on at least one of the conductive member (40) and the heat exchange members (31), and the buffer structure (50) is configured to enable the conductive member (40) to always keep in contact with each heat exchange member (31) when the conductive member (40) is deformed. The structure can improve the safety performance of the battery (100).
Resumen de: US2025276912A1
To provide: a range of gas mixture compositions that make it possible to hinder Li/Ni cation mixing and transition metal peroxidation; and a method for producing a nickel-rich cathode active material, comprising a firing process using the gas mixtures. The method for producing a nickel-rich cathode active material comprises a firing step, in which a cathode precursor containing at least a predetermined amount of nickel, and a metal oxide solid raw material containing lithium raw material, are fired in a reactor having an atmosphere comprising a gas mixture containing oxygen in the range of 94% by volume to 98% by volume. The oxygen content of the gas mixture is preferably 95% by volume to 97% by volume.
Resumen de: US2025276907A1
Embodiments described herein relate to recycling of spent lithium battery material. In some aspects, a method can include suspending a lithium source in a solvent containing an oxidation reagent to extract lithium, forming an extracted lithium solution, separating the extracted lithium solution from residual solids of a lithium source, purifying the extracted lithium solution by precipitating and filtering impurities, and precipitating the lithium in the purified lithium solution to generate lithium carbonate (Li2CO3). In some embodiments, the method can further include preprocessing the lithium source to improve kinetics of the lithium extraction. In some embodiments, the preprocessing can include a cutting or shredding step to downsize the lithium source. In some embodiments, the lithium source can include lithium-ion battery waste. In some embodiments, the oxidation reagent can include sodium persulfate (Na2S2O8), potassium persulfate (K2S2O8), ammonium persulfate (NH4)2S2O8, hydrogen peroxide (H2O2), ozone (O3), and/or nitrous oxide (N2O).
Resumen de: US2025276904A1
A silicon-based negative electrode active material comprises Si and MSiO3, where M comprises one or more alkaline earth metal elements. An XRD diffraction pattern of the silicon-based negative electrode active material has a first diffraction peak at a diffraction angle 2θ between 26° and 26.8° with a half peak width of βA, and a second diffraction peak at a diffraction angle 2θ between 31° and 32° with a half peak width of βB. The silicon-based negative electrode active material satisfies 1.5≤βA/βB≤ 5.0.
Resumen de: US2025276900A1
This application discloses a negative electrode active material and a preparation method therefor, a negative electrode plate, a battery, and an electrical device. The negative electrode active material includes a carbon core; a porous carbon skeleton layer, having an accommodation space inside, where the carbon core is located in the accommodation space; a carbon cladding layer, where the carbon cladding layer is cladded on at least a part of an outer surface of the porous carbon skeleton layer; and a wave absorbing material and silicon-based particles, where the wave absorbing material and the silicon-based particles are respectively and independently distributed in a region in which the carbon core is located and a region in which the porous carbon skeleton layer is located.
Resumen de: WO2025179894A1
A positive electrode active material and a preparation method therefor, a positive electrode sheet, a battery, and an electric device. The positive electrode active material comprises a positive electrode active host material and a fluorine-phosphorus compound admixed in the positive electrode active host material, wherein the positive electrode active host material comprises lithium nickel cobalt manganese oxide or/and lithium nickel cobalt aluminum oxide. By admixing the fluorine-phosphorus compound with the positive electrode active material, the positive electrode active material is modified, the service life at a high temperature is prolonged, and the electrochemical performance of a battery is optimized.
Resumen de: WO2025179773A1
The present application discloses laser drying equipment. The laser drying equipment is used for drying battery electrode sheets; the laser drying equipment comprises a mounting box, a light source module, a transmission module, an exhaust module, and a measurement module; the light source module can emit laser and form laser coverage areas inside a closed cavity; the transmission module can drive battery electrode sheets to be dried to move to the laser coverage areas, so that laser beams can dry the battery electrode sheets; the exhaust module comprises an exhaust port; the measurement module comprises a first measurement part and a second measurement part; the first measurement part can measure the temperature of the battery electrode sheets in a drying process; and the second measurement part can measure the concentration of solvent vapor at the exhaust port. The technical solution of the present application prevents potential safety hazards caused by an excessively high concentration of solvent vapor, and improves the drying quality and the production safety.
Resumen de: WO2025179770A1
The present application applies to the technical field of traction batteries. Provided are a heating device (100) and a battery processing system. The heating device comprises: a base plate (10) which has a first position and a second position that are staggered, the second position being configured to allow placement of a battery module (200); a bracket (30) which is movably connected to the base plate and configured to move between the first position and the second position; and a positioning assembly (40) which is movably arranged on the bracket, wherein when the bracket moves to the first position, the positioning assembly at least partially provides clearance above the second position, and when the bracket moves to the second position, the positioning assembly is located above the second position and can move closer to the base plate. The heating device provided in the present application enables the positioning assembly or the bracket to be located on one side of the first position, and provides clearance above the first position and on the other side of the first position, thereby reducing collisions between the battery module and the positioning assembly or the bracket during a transfer process.
Resumen de: US2025279408A1
A secondary battery includes: an electrode assembly; a first exterior material enclosing the electrode assembly such that the electrode assembly is sealed; a second exterior material enclosing an outer surface of the first exterior material, wherein at least a portion of the second exterior material is unbonded to the first exterior material; and an electrode lead electrically connected to the electrode assembly and configured to extend from an interior to an exterior of the first exterior material and the second exterior material.
Resumen de: US2025279409A1
The present disclosure relates to a composite electrode comprising polymer with carbon particles percolated by gallium or a gallium-indium alloy, and a stretchable battery comprising: a cathode electrode comprising silver oxide and styrene-isoprene block copolymer (Ag2O-SIS) and a cathode current collector; an anode electrode comprising a gallium, carbon, and a polymer and an anode current collector; wherein each of the cathode current collector and the anode current collector comprise: a first current collector of a composite comprising liquid metal eutectic gallium-indium (EGaln), silver (Ag), and styrene-isoprene block copolymer (SIS); and a second current collector a second layer of carbon black (CB) and styrene-isoprene block copolymer (SIS). The disclosure also discloses a method to obtain said composite electrode and said stretchable battery.
Resumen de: US2025279414A1
The positive electrode plate comprises a current collector, a first positive electrode active material layer, and a second positive electrode active material layer; the first positive electrode active material layer is arranged on at least one side of the current collector, and the second positive electrode active material layer is arranged on the first positive electrode active material layer; the first positive electrode active material layer comprises a first positive electrode active material, the second positive electrode active material layer comprises a second positive electrode active material, the first positive electrode active material comprises a lithium-containing phosphate of olivine structure, and the second positive electrode active material comprises a cobalt-containing lithium metal oxide. The positive electrode plate can effectively improve the influence of the concentration polarization of a battery on the performance of the battery, thereby helping to improve the capacity and cycle performance of the battery.
Resumen de: US2025279427A1
A lead-based alloy containing alloying additions of bismuth, antimony, arsenic, and tin is used for the production of doped leady oxides, lead-acid battery active materials, lead-acid battery electrodes, and lead-acid batteries.
Resumen de: US2025279415A1
A positive electrode active material and a preparation method therefor, a positive electrode sheet, a battery and an electric device. The positive electrode active material comprises: a core; and a carbon coating layer which covers at least part of the surface of the core, the molar ratio of sp3 hybridized carbon atoms to sp2 hybridized carbon atoms in the carbon coating layer being not less than 0.5.
Resumen de: WO2025179946A1
A nail pressing apparatus, an electrolyte injection device, and a battery production system. The nail pressing apparatus comprises a mounting frame (10), a pressure applying part (20), a first driving part (30) and an elastic part (40). The pressure applying part (20) is movably connected to the mounting frame (10) in a first direction. The first driving part (30) is connected to the mounting frame (10) and comprises a driver (31) and a cam (32), wherein the driver (31) is connected to the cam (32) and is used for driving the cam (32) to rotate. The elastic part (40) is connected to the mounting frame (10) and the pressure applying part (20), is used for applying an elastic force to the pressure applying part (20) so that the pressure applying part (20) abuts against the cam (32), and is configured to move in the first direction when the cam (32) rotates.
Resumen de: WO2025179627A1
A spraying device (104) for a battery electrode sheet, and a manufacturing device (100) for a battery electrode sheet. The spraying device (104) comprises: a spraying portion (204), wherein the spraying portion (204) comprises a cavity (304) used for accommodating a molten coating material (303) to be sprayed onto a battery electrode sheet, and a nozzle (207), the nozzle (207) being in fluid connection with the cavity (304), so that the molten coating material (303) can be sprayed onto the battery electrode sheet from the nozzle (207); and a deformation assembly, wherein the deformation assembly is arranged in the cavity (304), and when powered on, the deformation assembly deforms to change the volume of the cavity (304) used for accommodating the molten coating material (303).
Resumen de: WO2025179932A1
A separator (10), a battery cell, and an electric device. The electric device comprises a battery cell. The battery cell comprises the separator (10). The separator (10) comprises a first region (11) and a second region (12). The second region (12) surrounds the first region (11), and at least a portion of the second region (12) is thinner than the first region (11) in thickness. Thus, the likelihood of lithium plating at the edge of an electrode sheet is reduced.
Resumen de: WO2025179706A1
A housing (21), a casing (2) of a battery (100), a battery (100), an electrical apparatus, and a method for processing a housing (21), relating to the technical field of batteries. The housing (21) is formed with an accommodating cavity (21a) and a mounting port (21b) in communication with the accommodating cavity (21a), the accommodating cavity (21a) is used for accommodating a bare cell (1), a housing wall of the housing (21) comprises a side wall and an end wall, a first end of the side wall encloses to form the mounting port (21b), the end wall is arranged at a second end of the side wall, the end wall and the side wall jointly define the semi-closed accommodating cavity (21a), the side wall is formed with a first region (21c) and a second region (21d), and the hardness of the first region (21c) is lower than the hardness of the second region (21d).
Nº publicación: US2025280228A1 04/09/2025
Solicitante:
SHENZHEN SHOKZ CO LTD [CN]
SHENZHEN SHOKZ CO., LTD
Resumen de: US2025280228A1
The present disclosure provides a core module and an earphone. The core module comprises a housing, a battery assembly, and a driving assembly. The housing is provided with a first accommodation space and a second accommodation space. The battery assembly is accommodated in the first accommodation space along a first preset assembly direction. The driving assembly is accommodated in the second accommodation space along a second preset assembly direction. The first preset assembly direction and the second preset assembly direction are provided at an acute angle. A first limiting portion is disposed in the first accommodation space. A projection of the first limiting portion on a cross section perpendicular to the first preset assembly direction does not overlap with a projection of the battery assembly on the cross section perpendicular to the first preset assembly direction. The first limiting portion is configured to limit a position of the battery assembly.
BOPI
Sede Electrónica
