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1482
results.
Updated on
11/09/2025 [07:18:00]
Results 550 to 575 of 1482
Absstract of: WO2025183383A1
This battery pack assembly for a vehicle comprises a plurality of sub-packs, wherein each sub-pack includes a box frame and an inner frame assembly disposed within the box frame, the box frame includes a front wall, a rear wall and a pair of side walls, either the front wall or the rear wall includes a first plurality of mounting flanges disposed to be spaced apart in the vertical direction, each of the pair of side walls includes a second plurality of mounting flanges disposed to be spaced apart in the vertical direction, the inner frame assembly includes a plurality of cooling plate structures directly mounted on at least one of the first and second plurality of mounting flanges, a thermal hose assembly is connected to each of the plurality of cooling plate structures, and a plurality of battery modules are supported on the plurality of cooling plate structures.
Absstract of: WO2025183339A1
A carbon-based anode material for a sodium secondary battery, using pre-sodiation and reduction method is disclosed. The carbon-based anode material for a sodium secondary battery, according to one embodiment may comprise a solid electrolyte interface (SEI) layer. Here, the SEI layer is pre-formed by the sodium, which was loaded through pre-sodiation, before charging/discharging of a sodium secondary battery.
Absstract of: WO2025183361A1
The present invention relates to a positive electrode active material and a method for recycling same and, more specifically, to a positive electrode active material and a method for recycling same, wherein the positive electrode active material is at least one selected from the group consisting of 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, includes single particles, has an F content of 5,700 to 6,500 mg/kg, and/or has an a-axis lattice constant of 2.8753 to 2.8772 Å, a c-axis lattice constant of 14.243 to 14.255 Å, a cell volume of 101.968 to 102.168 Å3, and a grain size exceeding 130 nm and up to 136 nm, as measured by XRD analysis.
Absstract of: WO2025183364A1
The present invention relates to a negative active material comprising graphite and silicon, and a method for preparing same. The negative active material, according to one aspect of the present invention, comprises graphite and silicon, wherein the silicon content in the negative active material is 5 wt% to 80 wt%, and the silicon is uniformly distributed in the negative active material. A secondary battery, according to another aspect of the present invention, comprises: a negative electrode; a positive electrode; and a separator formed between the negative electrode and the positive electrode, wherein the negative electrode comprises the negative active material of the present invention. The method for preparing a negative active material, according to another aspect of the present invention, comprises the steps of: mixing graphite with silicon particles; and forming a negative active material comprising the graphite and the silicon particles by applying one or more forces selected from the group consisting of shear force, tensile force, and compressive force to the particles formed as a result of the mixing.
Absstract of: WO2025180282A1
Provided in the embodiments of the present application are a sodium-ion battery positive-electrode material, and a preparation method therefor and a precursor and application thereof. The sodium-ion battery positive-electrode material comprises a sodium-based metal oxide, wherein an X-ray diffraction spectrum of the material includes diffraction peaks of the following 12 crystal planes: (003), (006), (101), (012), (104), (107), (018), (110), (113), (1010), (116) and (024), and the ratio of a peak area of a diffraction peak of the crystal plane (003) to the sum of peak areas of the diffraction peaks of the 12 crystal planes is less than 25%. The positive-electrode material that meets the above conditions has a high particle sphericity and a smoothly rounded structure, such that the material achieves a high compaction density and good dynamic performance, thereby facilitating an improvement in the energy density and rate performance of a sodium-ion battery.
Absstract of: WO2025179862A1
A power supply device (2) and a street lamp. The power supply device (2) comprise a box (4), a sun shade (15), a battery (5) and limiting assemblies (6), wherein the sun shade (15) is arranged at a top of the box (4) and is configured to shade the box (4), and the battery (5) and the limiting assemblies (6) are all arranged inside the box (4); and the limiting assemblies (6) are arranged on the battery (5) and are configured to press the battery (5) tightly against an inner wall of the box (4), so as to fix the battery (5) inside the box (4) and enable contact heat transfer between the battery (5) and the box (4). The limiting assemblies (6) can conveniently limit and fix the battery (5) in the box (4), and can make the battery (5) closely fit to the inner wall of the box (4), such that the battery (5) and the box (4) form contact heat transfer to enhance the heat dissipation effect of the battery (5), and heat of the battery (5) can be directly conducted to the box (4). The sun shade (15) is provided at the top of the box (4), and the sun shade (15) can prevent sunlight from directly irradiating the box (4) in the daytime, thereby reducing the internal temperature of the box (4); and while the sun shade (15) is set to isolate heat, the limiting assemblies (6) limit the battery (5) to closely fit to the inner wall of the box (4) to enhance heat dissipation, such that the battery (5) can always be kept at a relatively suitable temperature during operation.
Absstract of: WO2025179848A1
A battery cell, a battery pack, and an electric device. The battery cell comprises: a casing (1) internally provided with an accommodating cavity having an opening; a cell body arranged in the accommodating cavity; and a top cover assembly (11) connected to the opening side of the casing (1) and covering the opening; wherein the top cover assembly (11) comprises a top cover (111) and poles (112), the top cover (111) has a first direction (X), the top cover (111) is provided with pole holes (1111) extending in the first direction (X), and the poles (112) are embedded in the pole holes (1111); the top cover (111) is provided with protruding structures (1112) on the sides of the peripheries of the pole holes (1111) away from the casing, and the protruding structures (1112) are used for limiting the positions of the poles (112); the cross-sectional area of each pole hole (1111) perpendicular to the first direction (X) is s1, the cross-sectional area of the top cover (111) perpendicular to the first direction (X) is s2, and the ratio of s1 to s2 satisfies: 0.015
Absstract of: WO2025179399A1
An energy storage system (ESS) comprises a cabinet; at least one battery string within the cabinet, the at least one battery string comprising a plurality of battery modules; and a suppression system within the cabinet configured to monitor a plurality of ESS conditions and to condition the ESS in a staged manner as monitored ESS conditions escalate as a result of a potential ESS failure event.
Absstract of: WO2025179677A1
A composite copper foil and a production process therefor, relating to the technical field of copper foil manufacturing. The composite copper foil comprises a substrate (70) and copper plated layers (80) provided on two sides of the substrate. The production process comprises: first, placing a substrate (70) into an acid tank (11), such that the surface of the substrate (70) is slightly corroded and thus coarsened; then using a moving mechanism (20) to take out the substrate (70) and using a rinsing assembly (30) to rinse same; then the moving mechanism (20) feeding the substrate (70) into an alkaline tank (12) for oil removal and, by means of a negative-pressure fan, air-drying the substrate (70) that has undergone the oil removal; then attaching a reducing agent to the substrate (70) and, in a chemical plating mode, soaking the substrate (70) in a reaction tank (90) filled with an electrolyte, such that elemental copper in the electrolyte is attached to the substrate to form copper plated layers; then increasing the thickness of the copper plated layers in a horizontal plating mode; and finally, attaching a negative electrode material to the copper plated layers, so as to complete the manufacturing of the composite copper foil. The copper plated layers have uniform thickness, and the copper foil exhibit good corrosion resistance and thermal conductivity.
Absstract of: WO2025179555A1
The present application provides a battery cell. The battery cell comprises a multi-layer structure formed of positive electrode sheets, negative electrode sheets and separators, wherein each separator is arranged between a positive electrode sheet and a negative electrode sheet. The battery cell can provide a charging rate greater than or equal to 2C. The multi-layer structure at least comprises a non-planar region, wherein in the non-planar region, the distance L1 between inner opposite surfaces of any adjacent positive and negative electrode sheets at any position has an appropriate value, such that the battery cell has an acceptable cycle life at the charging rate.
Absstract of: WO2025183367A1
A battery pack according to one embodiment of the present document may comprise: a conversion unit for converting the total voltage outputted from a first battery unit and a second battery unit into an intermediate voltage; a switch circuit unit for switching electrical connections between the conversion unit, the first battery unit, and a load; and a controller which charges the first battery unit by using the intermediate voltage and controls the operation of the switch circuit unit to supply power to the load.
Absstract of: WO2025183344A1
The present invention relates to a method for recycling a positive electrode active material and a positive electrode active material recycled thereby and, more specifically, the present invention can provide a method for recycling a positive electrode active material and a positive electrode active material recycled thereby, the method comprising the steps of: thermally treating a waste positive electrode, including a current collector and a positive electrode active material layer formed on the surface thereof, under an oxidative atmosphere to recover a positive electrode active material; adding a coating agent to the recovered positive electrode active material, followed by firing under a reductive atmosphere, to convert a trivalent iron compound in the positive electrode active material into a divalent iron compound and convert polycrystalline particles into a single-crystal cathode active material, while forming a coating layer on the surface of the positive electrode active material; and milling the positive electrode active material, which has the coating layer formed thereon and has undergone conversion into the divalent iron compound, to control the particle size of the positive electrode active material, so that during the recycling process, synthesis into a single crystal structure is achieved along with the conversion of trivalent iron into divalent iron to eliminate the remaining of trivalent iron inside the recycled positive electrode active material, thereby pr
Absstract of: WO2025183332A1
The present invention relates to a silicon negative electrode material including silicon particles coated with a graphene protective layer, wherein micropores are formed in at least a portion of the graphene constituting the graphene protective layer. The graphene protective layer surrounding the silicon particles improves lithium permeability due to having the micropores, and thus high-speed charge and discharge characteristics can be achieved. Moreover, nano-protrusions and pores are formed on the surface of the silicon particles and buffer the mechanical stress generated by volume expansion due to internal pores, and the nano-protrusion structure can suppress micronization and thereby alleviate deterioration.
Absstract of: WO2025182453A1
The present invention provides a nonaqueous electrolyte solution and an electrochemical element capable of reducing desolvation resistance. The nonaqueous electrolyte solution contains 200 wtppb or more of zirconium and/or 30 wtppb or more of lanthanum. The nonaqueous electrolyte solution may further contain 10 wtppb or more of strontium. The nonaqueous electrolyte solution may contain zirconium and lanthanum, and the ratio of the concentration of lanthanum to the concentration of zirconium may be 0.2 to 0.5. The electrochemical element contains the nonaqueous electrolyte solution.
Absstract of: WO2025179846A1
The present application discloses a thermal control method and system for a battery. The thermal control method for the battery is applied to a controller of the thermal control system for the battery. The thermal control system for the battery further comprises a temperature adjusting device; and the temperature adjusting device comprises at least two circulating loops located at different positions of the battery. The method comprises: acquiring temperature information of the battery; determining a thermal control strategy of the battery on the basis of the temperature information of the battery; and controlling the at least two circulating loops to perform thermal control treatment corresponding to the thermal control strategy on the battery.
Absstract of: WO2025179861A1
A temperature regulation component, a battery assembly and a vehicle. The temperature regulation component comprises a heat conduction plate and heating films, wherein the heating films are arranged on two sides of the heat conduction plate in the direction of thickness of the heat conduction plate, and the heating films are used for heating battery cells.
Absstract of: WO2025179850A1
A battery disconnect unit (10) and a battery pack. The battery disconnect unit (10) comprises: an upper shell (2) and a lower shell (3), which are arranged opposite each other, the upper shell (2) and the lower shell (3) enclosing to form an accommodating cavity; a component (4), which is provided in the accommodating cavity, the component (4) being connected to at least one of the upper shell (2) and the lower shell (3), and the component (4) being configured to disconnect or connect a circuit of the battery pack; and a flexible liquid-cooling plate (1), which is provided in the accommodating cavity, the flexible liquid-cooling plate (1) being in thermal conductive connection with at least part of the component (4) to perform heat dissipation on the component (4), and at least part of the flexible liquid-cooling plate (1) penetrating the upper shell (2) to connect with an external liquid-cooling circuit. By using the bendability of the flexible liquid-cooling plate (1), the flexible liquid-cooling plate (1) can be bent into different shapes to fit with the component (4), thereby not only improving the universality and spatial configuration flexibility of the flexible liquid-cooling plate (1), but also enhancing the heat dissipation effect of the battery disconnect unit (10).
Absstract of: WO2025180053A1
The present application relates to a sampling circuit board, a battery and an electric device. The sampling circuit board is configured to connect to battery cells, and comprises a board body (110), connecting structures, and adapters (140). Each connecting structure comprises a protective structure (120) and an adaptation portion (130). The protective structure has a head end (1201) connected to the board body (110) and a tail end (1202) provided opposite the head end (1201), and the protective structure (120) is arranged and non-linearly extends between the head end (1201) and the tail end (1202). The adaptation portion (130) is connected between the tail end (1202) of the corresponding protective structure (120) and the board body (110). Each adapter (140) is provided on the corresponding adaptation portion (130) and is configured to electrically connect to the corresponding battery cell.
Absstract of: WO2025183333A1
The present invention relates to a silicon negative electrode material comprising silicon secondary particles formed by aggregating silicon primary particles, wherein the silicon negative electrode material has a bridge connecting adjacent silicon primary particles in the silicon secondary particles.
Absstract of: WO2025182153A1
The present invention provides a heat transfer suppression sheet in which it is possible to accurately align the positions of a heat insulation material and an elastic sheet, and with which it is possible to suppress destruction of a battery case and deterioration of the battery performance due to deformation of a battery cell, to further suppress propagation of heat between battery cells when an abnormality occurs, and to reduce the starting material cost. This heat transfer suppression sheet (50) has: a heat insulation material (10) which contains inorganic particles; elastic sheets (51a, 51b) which are superposed on a first surface (10a) and a second surface (10b) of the heat insulation material (10), the first and second surfaces being orthogonal to the thickness direction of the heat insulation material; and joining parts (55a, 55b) which join the heat insulation material (10) and the elastic sheets (51a, 51b) to each other. Facing regions (45a, 45b) in which the heat insulating material (10) and the elastic sheets (51a, 51b) face each other have joining regions (44a, 44b) in which the joining parts (55a, 55b) are present, and non-joining regions (41a, 41b) in which the joining parts (55a, 55b) are not present.
Absstract of: WO2025183264A1
The present invention relates to an all-solid-state battery. More specifically, the all-solid-state battery comprises a positive electrode layer, a negative electrode layer, and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer, the solid electrolyte layer including: a first solid electrolyte layer adjacent to the positive electrode layer and having a first width and a first thickness; and a second solid electrolyte layer adjacent to the negative electrode layer and having a second width and a second thickness, wherein the second width is greater than the first width, and the second thickness is greater than the first thickness.
Absstract of: WO2025182200A1
This metal recovery method is for leaching metal in a battery powder of a lithium-ion battery waste and for separating and recovering the metal from a thus obtained metal-containing solution. The metal recovery method comprises an elution step for bringing, into contact with an acidic eluent, a cation exchange resin and/or a chelate resin in which metal ions derived from the battery powder are adsorbed as adsorption target ions, and eluting the adsorption target ions from the cation exchange resin and/or the chelate resin to obtain a post-elution liquid including the adsorption target ions. An acidic liquid that is obtained by electrodialysis and contains the metal ions is used as at least a part of the acidic eluent in the elution step to cause the metal ions contained in the acidic liquid to be included in the post-elution liquid, and the post-elution liquid is brought back to and is used in steps included in the steps for leaching metal in the battery powder, and for separating and recovering the metal.
Absstract of: WO2025180047A1
A battery (100) and an electric device. The battery (100) comprises a mounting part (1) and a flange structure (2); a mounting hole is formed in the mounting part (1); the flange structure (2) comprises a first connecting part (21a), a first sealing member (22), and a second sealing member (23); the first connecting part (21a) is movably arranged in the mounting hole; the first sealing member (22) is sleeved on the periphery of the first connecting part (21a), and is connected to the mounting part (1); and the second sealing member (23) is sleeved on the periphery of the first connecting part (21a), and matches the first sealing member (22) to enhance the sealing effect between the first sealing member (22) and the first connecting part (21a). The electric device comprises the battery (100).
Absstract of: WO2025179721A1
Disclosed are a cell winding apparatus and method. The cell winding apparatus comprises an unwinding mechanism, a winding needle assembly, and an electrode sheet cutting-off device. The unwinding mechanism is configured to be capable of unwinding a first electrode sheet, a second electrode sheet, and a separator. The winding needle assembly is configured to be capable of overlapping the first electrode sheet, the second electrode sheet and the separator which are unwound by the unwinding mechanism and winding same into a wound structure, and at least one layer of separator is sandwiched between a first electrode sheet and a second electrode sheet adjacent to each other. The electrode sheet cutting-off device comprises a cutter and an adjusting mechanism; the adjusting mechanism and the cutter edge side of the cutter are provided with a path for the first electrode sheet to pass through; the adjusting mechanism is configured to enable a demarcated region to be cut off of the first electrode sheet to be opposite to the cutter edge of the cutter; and the cutter is configured to be capable of cutting off the first electrode sheet at said demarcated region. The adjusting mechanism of the cell winding apparatus can adjust a demarcated region to be cut off to be opposite to the cutter edge of the cutter, and the cutter can accurately cut off a first electrode sheet, thereby improving the consistency of bare cells, and improving the use performance of batteries.
Nº publicación: WO2025180005A1 04/09/2025
Applicant:
BYD COMPANY LTD [CN]
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Absstract of: 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).
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