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1482
results.
Updated on
11/09/2025 [07:18:00]
Results 575 to 600 of 1482
Absstract of: 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.
Absstract of: WO2025183540A1
The present specification relates to a carbon nanotube dispersion solution, an electrode slurry composition comprising same, an electrode comprising same, and a secondary battery comprising same, the solution including: carbon nanotubes; a first dispersant comprising a polyvinyl butyral resin in which the content of a repeating unit containing a hydroxyl group is 15 to 30 wt%; a second dispersant comprising an amine group or an imine group; and an alcohol-based solvent.
Absstract of: WO2025183508A1
The present invention relates to a battery assembly and, more specifically, to a battery assembly including rechargeable batteries capable of charging/discharging. A battery assembly according to an embodiment of the present invention includes: a plurality of rechargeable batteries; and a housing accommodating the plurality of rechargeable batteries. Each of the rechargeable batteries includes: an electrode assembly; an accommodation unit which accommodates the electrode assembly; an exterior cladding having an exterior cladding opening which communicates the inner space of the accommodation unit with the outside; and a cover member covering the exterior cladding opening, wherein parts of the exterior cladding overlap each other to form an exterior cladding overlapping part, and the exterior cladding overlapping part may be in close contact between the accommodation unit and the housing or between the accommodation unit and a neighboring rechargeable battery.
Absstract of: WO2025183491A1
The electrode for a secondary battery according to an embodiment of the present disclosure includes: an electrode current collector; electrode mixture layers on both surfaces of the electrode current collector; and insulating layers on both surfaces of the electrode current collector, wherein the electrode for a secondary battery has an α value of 0 to 1 according to Equation 1 below. Equation 1 In Equation 1 above, α is a foil curl parameter, TAis the thickness value in micrometers (μm) of the insulating layer on one surface of the current collector, TB is the thickness value in micrometers (μm) of the insulating layer on the other surface of the current collector, and W is the width value in millimeters (mm) of the insulating layer. According to an embodiment of the present disclosure, it is possible to alleviate problems caused by foil curl in an electrode for a secondary battery.
Absstract of: WO2025183483A1
The present invention comprises: a current collector delamination step for separating a current collector from a negative electrode active material layer by treating, with an organic solvent, a negative electrode determined to be defective during a battery manufacturing process; and a drying step for removing the remaining aqueous solvent by performing heat treatment on the negative electrode active material layer separated from the current collector, and thus can effectively recycle electrode material determined as waste during the battery manufacturing process.
Absstract of: WO2025182935A1
The purpose of the present invention is to suppress deterioration of a sulfide solid electrolyte containing a lithium (Li) element, a phosphorus (P) element, a sulfur (S) element, and a halogen (X) element, and a battery using the same. The sulfide solid electrolyte contains a lithium (Li) element, a phosphorus (P) element, a sulfur (S) element, and a halogen (X) element. The sulfide solid electrolyte has a peak in a range of 2θ = 20.66° ± 1.00° in an X-ray diffraction pattern measured by an X-ray diffraction device using CuKα 1 rays. In surface analysis by X-ray photoelectron spectroscopy, the peak top position of the spectrum of the P2p orbit is preferably 132.5 eV or more.
Absstract of: WO2025182933A1
An electricity storage module (10) comprises: at least one electricity storage device (20); a case (40) in which the at least one electricity storage device (20) is housed; a coolant (50) into which the at least one electricity storage device (20) is immersed inside the case (40); and an exhaust mechanism (60) that is disposed inside of the coolant (50) and cools and collects the coolant (50) contained in gas exhausted from the case (40). The exhaust mechanism (60) has: a cooling/collection section (61) that is disposed on the bottom surface of the case (40) and cools and collects the coolant (50) contained in the gas; an inlet pipe (62) that connects the cooling collection section (61) and an upper part inside the case (40); and an outlet pipe (63) that connects the cooling/collection section (61) and the outside of the case (40).
Absstract of: WO2025182932A1
An electric power storage module (10) is provided with: at least one electric power storage device (20); a case (40) in which said at least one electric power storage device (20) is accommodated; a cooling liquid (50) for immersing therein said at least one electric power storage device (20) inside the case (40); and a recovery mechanism (60) for recovering the cooling liquid (50) contained in gas discharged from the case (40). The recovery mechanism (60) has: an exhaust pipe (61) through which gas is discharged; and a filter (62) that is provided to the exhaust pipe (61) and collects the cooling liquid (50) contained in the gas.
Absstract of: WO2025182925A1
The present invention addresses the problem of providing a method for producing lithium sulfide capable of increasing the degree of freedom in designing a stirring device for a lithium raw material and efficiently delivering a sulfur-containing gas to the entire lithium raw material. In the method for producing lithium sulfide according to the present invention, a solid lithium raw material is stirred by a rotatable stirring device while blowing a sulfur-containing gas through a gas blow-out port provided in the stirring device and bringing the gas into contact with the lithium raw material to produce lithium sulfide. The lithium raw material is preferably stirred by the stirring device in a state in which a certain amount of the lithium raw material is charged into a reaction container. It is also preferable to stir the lithium raw material by the stirring device while conveying the lithium raw material in one direction.
Absstract of: 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).
Absstract of: 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).
Absstract of: 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.
Absstract of: 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.
Absstract of: WO2025183503A1
The present invention provides an electrode assembly manufacturing device comprising: an unwinder (200) for unwinding an electrode sheet (50); an electrode sheet curl-reducing roller (100) which is in contact with the electrode sheet (50) and reduces curl which can form on one side of the electrode sheet (50) in the thickness direction; a winding core (300) for winding the electrode sheet (50), the end of which is fixed, by rotating; a transfer unit (400) for inserting the electrode sheet (50) into the winding core (300); and a cutter (500) cutting the electrode sheet (50) inserted into the winding core (300).
Absstract of: WO2025183485A1
A battery pack according to various embodiments comprises: a cell assembly including a plurality of battery cells; and a battery pack case that accommodates the cell assembly, wherein the battery pack case includes: a lower frame; and a plurality of side frames extending from the lower frame in a substantially vertical direction, and the plurality of side frames may be configured as a combination of: a first side frame including a first flange and a second flange respectively protruding from the upper portion and the lower portion thereof toward the outside of the battery pack case; and a second side frame having one corner at least partially in contact with the first side frame and including a third flange protruding from the upper portion thereof toward the outside of the battery pack case. Other embodiments are possible.
Absstract of: WO2025183488A1
The present disclosure relates to an electrode for a secondary battery and a secondary battery comprising same. The electrode for a secondary battery according to one embodiment comprises: a coated portion where an electrode active material layer is positioned on a current collector and an uncoated portion where the electrode active material layer is not positioned on the current collector; and an insulating coating layer disposed on at least a portion of the uncoated portion and including an electrode insulating polymer, wherein the thermal expansion coefficient of the electrode insulating polymer may be 66 μm/m°C to 127 μm/m°C.
Absstract of: WO2025183499A1
The present invention provides an electrode sheet rolling apparatus (10) comprising a cylindrical first pressing roller (100) and a cylindrical second pressing roller (200) which: are arranged so as to face each other, with an electrode sheet (50) transferred therebetween in the lengthwise direction; come into contact with the electrode sheet (50) passing therebetween; and rotate about a first rotation axis (A1) and a second rotation axis (A2), respectively, the rotation axes extending in the widthwise direction. The second pressing roller (200) can contact the electrode sheet (50) along the circumference thereof in a first angle section (G1) centered around the second rotation axis (A2). The first angle section (G1) may include a first sub-section (U1) and a second sub-section (U2), the first sub-section (U1) being of at least the minimum angle of the first angle section (G1) and at most a first angle (L1) at which the first rotation axis (A1) is located relative to the second rotation axis (A2), and the second sub-section (U2) being of at least the first angle (L1) and at most the maximum angle of the first angle section (G1). The electrode sheet (50) may be apart from the first pressing roller (100) in at least a part of the first sub-section (U1) and at least a part of the second sub-section (U2).
Absstract of: WO2025182926A1
The present invention addresses the problem of providing a method for easily manufacturing a solid-state battery in which the charging rate and initial characteristics are improved. The method comprises: a first processing step for causing a current to pass through a solid-state battery before initial charging, at a temperature of 25-90°C and at a rate of 0.001-0.5C; a holding step for holding the solid-state battery at a temperature of 25-90°C after the first processing step; and a second processing step that is performed after the holding step as an initial charging step for charging the solid-state battery to a depth of charge of 50-100% in SOC and then discharging the same. Preferably, the holding time in the holding step is at least 10 minutes. Further preferably, in the first processing step, a current is passed through the solid-state battery to a depth of charge of 1-105% in SOC.
Absstract of: WO2025182914A1
A secondary battery comprising: a positive electrode; a negative electrode; a separator disposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte. The separator includes a sheet-shaped first base material, a sheet-shaped second base material, and a spacer disposed between the first base material and the second base material. One of the first base material and the second base material is disposed on the positive electrode side, and the other is disposed on the negative electrode side.
Absstract of: WO2025182900A1
In this invention, a solid-state battery before initial charging is subjected to a first preliminary treatment step for energizing same at a current density of 0.005 mA/cm2 or more at a temperature of 20°C or higher. It is preferable to perform, on the solid-state battery, a second preliminary treatment step for discharging a current at a current density of 0.005 mA/cm2 or more at a temperature of 20°C or higher after the first preliminary treatment step and before the initial charging. It is also preferable that the energization time in the first preliminary treatment step is 10 minutes or more. It is also preferable to perform the first preliminary treatment step at a temperature of 100°C or lower.
Absstract of: WO2025182903A1
A solid electrolyte according to the present invention includes lithium (Li), phosphorus (P), and sulfur (S). The solid electrolyte contains LixP (x being a number from 0 to 3, inclusive). It is preferable that the solid electrolyte also includes lithium sulfide. It is also preferable that the P2p spectrum measured by X-ray photoelectron spectroscopy has a peak at a binding energy of 124.5-129.0 eV. It is also preferable that the S2p spectrum measured by X-ray photoelectron spectroscopy has a peak at a binding energy of 159.0-160.8 eV.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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).
Nº publicación: WO2025179932A1 04/09/2025
Applicant:
BYD COMPANY LTD [CN]
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Absstract of: 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.
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