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1344
results.
Updated on
09/09/2025 [07:15:00]
Results 350 to 375 of 1344
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: 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: 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: 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: 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: 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: WO2025179835A1
The present application provides a battery and an electric device. The battery comprises a battery module and a heat exchange component, the battery module comprises a plurality of battery cells, and gaps are formed between adjacent battery cells. The heat exchange component comprises a manifold and a plurality of nozzles, the manifold is located on one side of the plurality of battery cells in a first direction, a flow channel for a heat exchange medium to flow is provided in the manifold, and the plurality of nozzles are connected to the manifold and face the battery cells. In the first direction, the projections of the nozzles at least partially overlap the projections of the gaps.
Absstract of: WO2025183518A1
The present invention relates to a method for regenerating a cathode active material, and a regenerated cathode active material prepared thereby. The method comprises the steps of: a) heat-treating, at 300-650 °C, a waste cathode, which has a cathode active material layer formed on a current collector, so as to thermally decompose a binder and a conductive material in the cathode active material layer, thereby separating the current collector from the cathode active material layer and recovering a cathode active material in the cathode active material layer; b) heat-treating the recovered cathode active material again at 350-700 °C for 1-10 hours; c) adding a lithium precursor to the reheated cathode active material and annealing same at 500-1,000 °C; d) washing the annealed cathode active material with a washing solution; and e) surface-coating the washed cathode active material with a coating agent.
Absstract of: WO2025183516A1
The present invention relates to an electrolyte for use in a lithium-sulfur battery, the electrolyte comprising a non-aqueous solvent, a first lithium salt, a second lithium salt, an inorganic nitrate, and an organic nitrate, wherein the non-aqueous solvent comprises an acyclic ether and a conjugated heterocyclic compound, thereby achieving the improvement in coulombic efficiency and lifespan of the lithium-sulfur battery.
Absstract of: WO2025183519A1
The present invention relates to a method for manufacturing a regenerated cathode active material and a cathode active material manufactured therefrom and, more specifically, to a method for manufacturing a regenerated cathode active material and a cathode active material manufactured therefrom, the method comprising the steps of: (a) heat-treating a spent cathode having a cathode active material layer formed on a current collector to thermally decompose a binder and conductive agent in the active material layer, thereby separating the current collector from the cathode active material layer and recovering the cathode active material within the cathode active material layer; (b) adding a lithium precursor to the recovered cathode active material and annealing same at 400 to 1000 °C for 8 to 12 hours; and (c) washing the annealed cathode active material with a cleaning solution.
Absstract of: WO2025183228A1
The present invention relates to a silicon-carbon composite negative electrode material composition comprising nano-silicon particles, a carbon-based substance, and an additive, wherein the additive is a hybrid of a polysaccharide substance and a nano-carbon material.
Absstract of: WO2025182837A1
A battery comprises: an electrode body in which a long positive electrode, having a positive electrode core body and a positive electrode mixture layer, and a long negative electrode (12), having a negative electrode core body (41) and a negative electrode mixture layer (42), are wound with a separator therebetween; and an outer can that houses the electrode body. A negative electrode core body exposed part (41a) is provided to a winding outer surface (12a) on the outermost circumference of the electrode body where the negative electrode core body (41) is exposed. The tensile elongation of a first portion (51) in which the negative electrode core body exposed part (41a) of the negative electrode core body (41) is provided is higher than the tensile elongation of a second portion (52) in which the negative electrode mixture layer (42) is formed on both the winding outer surface (12a) and a winding inner surface (12b) of the negative electrode core body (41).
Nº publicación: WO2025182755A1 04/09/2025
Applicant:
TOAGOSEI CO LTD [JP]
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Absstract of: WO2025182755A1
Disclosed is a composite electrolyte which contains an inorganic solid electrolyte, a polymer, and an alkali metal salt, wherein the inorganic solid electrolyte contains an oxide having a NASICON type crystal structure, and the polymer does not substantially have a repeating unit represented by -(R1-O)- (wherein R1 is an alkylene group) in the main chain.
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