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1900
resultados
Última actualización
05/10/2025 [07:18:00]
Resultados 525 a 550 de 1900
Resumen de: WO2025205707A1
In the present invention, a computer is caused to perform processing for: acquiring performance change information on each power storage element by performing a charge/discharge cycle test at a set number of cycles while varying charge/discharge conditions for each power storage element; determining a charge/discharge condition for performing a charge/discharge cycle test at a larger number of cycles than the set number of cycles, on the basis of the acquired performance change information of each power storage element; and determining the amount of suppliable power of the power storage element by using the performance change information acquired by performing the charge/discharge cycle test under the determined charge/discharge condition for performing a charge/discharge cycle test at a larger number of cycles than the set number of cycles.
Resumen de: WO2025204008A1
Provided are: a carbon nanotube assembly which has excellent dispersibility in a carbon nanotube dispersion and from which a carbon nanotube dispersion having an appropriate viscosity is obtained; and an application thereof. A carbon nanotube assembly, a carbon nanotube dispersion, a conductive material, an electrode, a secondary battery, a planar assembly, a filter, an electromagnetic wave shield, and an extreme-ultraviolet pellicle, which satisfy the conditions (1) and (2). (1) The peak intensity ratio G1/D1, which is the ratio of the peak intensity G1 of the G band to the peak intensity D1 of the D band in a Raman spectrum of carbon nanotubes, is 0.70-10.0, and the ratio of the peak area ratio G2/D2, which is the ratio of the peak area G2 of the G band to the peak area D2 of the D band, to the peak intensity ratio G1/D1 is 1.20-3.00. (2) The BET specific surface area of carbon nanotubes is 100 m2/g to 300 m2/g.
Resumen de: WO2025201568A1
Provided in the present application are a negative electrode material and a battery. The negative electrode material comprises graphite and an organic polymer material located on the surface and/or inside the graphite. The negative electrode material comprises a metal element, and the metal element comprises at least one of lithium, sodium, potassium and aluminum; and on the basis of the total mass of the negative electrode material being 100%, the mass content of the metal element is 1300-4400 ppm. The negative electrode material is provided with pores, and the volume ratio of the pores having a pore diameter in the range of 5-35 nm in the total pore volume is 15-30%. The negative electrode material provided in the present application can comprehensively improve the lithium-ion transmission kinetics, the initial coulombic efficiency and the cycle performance.
Resumen de: WO2025200354A1
A preparation method for an interpenetrating solid electrolyte interface and the use thereof in the technical field of battery materials. The preparation method comprises: preparing a lithium oxide coating from a lithium metal electrode sheet in an air atmosphere; immersing same in a lithium polysulfide plating solution to prepare a lithium sulfide coating; and then drying same at room temperature to obtain a lithium sulfide/lithium oxide interpenetrating artificial solid electrolyte interface. By means of a simple chemical oxidation reduction method, a double-layer artificial SEI structure is designed to solve the problems, such as volume expansion in cycles, non-uniform lithium deposition, lithium dendrite growth, low coulombic efficiency, and bad long cycle stability, of lithium metal negative electrodes, improving effects in the application to lithium ion batteries.
Resumen de: WO2025205840A1
Provided are: an effective additive for a lithium-ion secondary battery electrode, other than a ferroelectric material, which can improve input-output characteristics by lowering the electrode-electrolyte solution interfacial resistance R2 in a lithium-ion secondary battery positive electrode material that contains one or more of Mn, Fe and Ni; and a lithium ion secondary battery positive electrode material and a lithium ion secondary battery containing same. An additive for a lithium ion secondary battery positive electrode is characterized by containing a composite oxide that is present together with a lithium ion secondary battery positive electrode material containing cations of one or more elements selected from among Mn, Fe, Ni and Co, and in that the composite oxide does not contain alkali metal ions or alkaline earth metal ions, has an acid point and a base point, and has a relative dielectric constant of 20 or more. Also provided are a lithium ion secondary battery positive electrode material and a lithium ion secondary battery containing the additive.
Resumen de: WO2025203600A1
This vehicle comprises: a battery; a battery case in which the battery is accommodated; a first cooling fan that supplies air into the battery case; an electric component that is provided outside the battery case; a second cooling fan that supplies air from the inside of the battery case to the electric component; and a control unit that controls the operations of the first cooling fan and the second cooling fan. If an abnormality has occurred in the battery, the control unit stops the first cooling fan and the second cooling fan.
Resumen de: WO2025205475A1
Provided is a positive electrode for a lithium-ion secondary battery including a positive electrode active material layer. The positive electrode active material contained in the positive electrode active material layer contains active material particles composed of a composite oxide (X) having a lamellar rock-salt-type crystal structure. When the value of an average particle diameter d50 in the volume-based particle size distribution of the active material particles according to a laser diffraction/scattering type particle size distribution measurement method is D1 μm, and a projected area-equivalent circle diameter (Heywood diameter) calculated from a SEM image obtained when the active material particles are observed with an electron microscope under the following conditions is D2 μm, the number of the active material particles satisfying D2 ≤ 0.5 × D1 is 10 or fewer. (Conditions) Field of view: 60 μm × 60 μm; imaging magnification: ×1000
Resumen de: WO2025204167A1
This method for processing a waste lithium ion battery for recovering lithium from a waste lithium ion battery that contains fluorine includes: introducing a roasted material that is obtained by roasting the waste lithium ion battery into a first dissolution tank so as to immerse the roasted material in water; performing first solid-liquid separation on the aqueous solution after immersion in the first dissolution tank; recovering the lithium from the aqueous solution that is separated by the first solid-liquid separation; introducing the residue after immersion in the first dissolution tank into a second dissolution tank, which is different from the first dissolution tank, so as to immerse the residue in water; adding calcium hydroxide to water in the second dissolution tank; performing second solid-liquid separation on the aqueous solution after immersion in the second dissolution tank; and separating excess calcium, which is derived from calcium hydroxide, and lithium from the aqueous solution that is separated by the second solid-liquid separation.
Resumen de: WO2025206809A1
The present invention relates to a silicon-carbon composite, and an anode active material for a secondary battery, comprising same. More specifically, the present invention relates to a silicon-carbon composite, and an anode active material for a secondary battery, comprising same, the silicon-carbon composite, in which the size of a silicon cluster is controlled by carbon atoms, being used as an anode active material for a secondary battery so as to minimize a change in volume of the anode active material and inhibit side reactions, thereby enabling the lifespan of a secondary battery to be improved.
Resumen de: WO2025203690A1
Provided is a method for manufacturing a battery module provided with a laminate in which a plurality of units are laminated, the units each including a first cell group and a second cell group in which a plurality of cells extending in a first direction are disposed in a second direction orthogonal to the first direction, and a temperature control plate that is disposed between the first cell group and the second cell group and extends in the second direction, the method comprising laminating the plurality of units to form the laminate, and positioning the positional relationship between the units in the laminate by using a pair of plates sandwiching the laminate from both lamination-direction sides.
Resumen de: WO2025200500A1
Provided is child-proof battery packaging. A closed blister shell (100) is used for sealing a battery (300). A battery accommodating groove (111) and a battery removal groove (112) are provided inside the blister shell (100). A first supporting protrusion (132) is provided on a side portion of the battery accommodating groove (111). The width and height of the battery removal groove (112) are greater than the width and height of the battery (300). A top surface of the battery removal groove (112) is provided with a second supporting protrusion (122). A bottom surface of the second supporting protrusion (122) is attached to a top surface of the first supporting protrusion (132). A cutting protrusion (121) is disposed at a position of the exterior of the blister shell (100) corresponding to the battery removal groove (112). When removing a battery, the cutting protrusion (121) is cut along a second direction, the cutting protrusion (121) protruding outwards in the second direction and a third direction. The first supporting protrusion (132) and the second supporting protrusion (122) are used for supporting the interior of the blister shell (100). Therefore, a cut edge will not significantly collapse, a battery (300) can be easily removed by cutting once and using gravity, without the need for multiple cuts, and the cut edge does not need to be smoothed after cutting, thus meeting child-proof requirements and being convenient for users to remove.
Resumen de: WO2025204007A1
The present invention provides a carbon nanotube assembly excellent in conductivity when used to provide a carbon nanotube dispersion liquid, a carbon nanotube dispersion liquid, a conductive material, an electrode, a secondary battery, a planar assembly, a filter, an electromagnetic wave shield, and an extreme ultraviolet pellicle. The present invention provides the carbon nanotube assembly, carbon nanotube dispersion liquid, conductive material, electrode, secondary battery, planar assembly, filter, electromagnetic wave shield, and extreme ultraviolet pellicle satisfying the following conditions (1) and (2). (1) The pore volume is 0.60 cm3/g to 5.00 cm3/g. (2) The ratio between the volume resistivity under 20 kN pressurization and the volume resistivity under 1 kN pressurization is 0.18-0.30.
Resumen de: WO2025204765A1
The present invention improves discharge characteristics while improving water resistance. Provided is a solid electrolyte having a composition formula represented by LixMXy, wherein M is one or more elements selected from group 14 elements, X includes S, and the relationships 2.0
Resumen de: WO2025200785A1
A secondary battery and an electronic device. The secondary battery comprises a negative electrode sheet (10) and a negative electrode tab (20), wherein the negative electrode sheet comprises a negative electrode current collector and a negative electrode material layer (13); the negative electrode current collector (11) comprises a substrate layer (11) and a conductive coating (12) arranged on a surface of the substrate layer (11); the negative electrode material layer (13) is arranged on a surface of the conductive coating (12); the negative electrode tab (20) and the negative electrode sheet (11) are electrically connected by means of bonding via a conductive adhesive (30), and the bonding length of the negative electrode tab (20) and the negative electrode sheet (11) is 6 mm to 10 mm; the conductive coating (12) comprises a conductive agent and a binder; and the material of the substrate layer (11) comprises at least one of polypropylene, polyethylene, polyethylene glycol terephthalate, cellulose, polyimide, polyamide, spandex or aramid fibers. The secondary battery provided by the present application has relatively low impedance and good safety, reliability and discharge rate capability.
Resumen de: WO2025206536A1
A battery pack is disclosed. The battery pack according to an embodiment of the present invention may comprise: a case providing an inner space and having an opening; a plurality of battery cells located inside the case; and a cooling channel that partitions the opening.
Resumen de: WO2025200242A1
The present application relates to a positive electrode active material and a preparation method therefor, a positive electrode sheet, a secondary battery and the use. The positive electrode active material comprises a core and a coating layer that coats at least part of the surface of the core, wherein the coating layer comprises a fluoride having a perovskite structure, the fluoride comprising a material with a molecular formula of AMF3, where the element A comprises one or more of Li, Na and K, and the element M comprises one or more of Mn, Ni, Fe, Sr, Mg, Ca, Cu and Ce; and the core comprises a lithium-containing positive electrode material. Therefore, the initial coulombic efficiency and cycle performance of a battery are improved.
Resumen de: WO2025200241A1
The present application relates to a heat exchange assembly, a battery, a battery management system, and an electrical apparatus. The heat exchange assembly comprises: a heat exchange body, there being a heat exchange medium flowing in the heat exchange body; a flow collector, the flow collector being disposed at at least one end of the heat exchange body, and the flow collector being used for leading heat exchange medium out of, or introducing heat exchange medium into, the heat exchange body; and a sensing apparatus, disposed on the flow collector so as to sense one or more of the pressure, flow velocity, and temperature of the heat exchange medium. The heat exchange assembly, the battery, the battery management system, and the electrical apparatus of the embodiments of the present application, can provide timely feedback when a problem occurs.
Resumen de: WO2025202846A1
The present invention provides a flexible electronic device. The present invention also provides methods for charging and discharging a battery included in an electronic device. The electronic device includes a plurality of battery units, a plurality of control circuit units, a flexible substrate unit, and a display unit. The flexible substrate unit has the plurality of control circuit unit on one surface thereof, with a respective battery unit on each of the control circuit units. The display unit has an area overlapping the plurality of battery units, the plurality of control circuit units, and the flexible substrate unit, and at least one of the plurality of battery units is flexible. A sensor unit is provided between the other surface of the flexible substrate unit or the control circuit units and the flexible battery units, and charging/discharging of the battery units can be controlled according to a detection signal from said sensor unit.
Resumen de: WO2025200498A1
A vehicle (400), provided with a battery management chip (300). The battery management chip (300) is provided with a battery management circuit (100). The battery management circuit (100) comprises an amplitude-phase detection device (1) and a waveform generator (2); a first input end of the amplitude-phase detection device (1) is connected to a positive electrode of a battery (200), and an output end of the waveform generator (2) is separately connected to the positive electrode of the battery (200) and a second input end of the amplitude-phase detection device (1); the waveform generator (2) is configured to apply alternating-current excitation signals of different frequencies to the battery (200); and the amplitude-phase detection device (1) is configured to detect the amplitude and phase of the impedance of the battery (200) under the alternating-current excitation signals of different frequencies.
Resumen de: WO2025201116A1
A battery cell, a battery module and an electric device. The battery cell comprises: a core, an end face thereof being provided with a tab; a casing assembly for mounting the core; a spacer ring, which comprises a spacer ring body and a limiting member, wherein the spacer ring body is used for fixing the tab, and the limiting member is configured to restrict wobbling of the spacer ring, thus reducing the flipping of the spacer ring in the direction of thickness of the tab after being fitted together; and an insulating member, which is arranged between the core and the casing assembly to separate same by insulation, wherein the insulating member protrudes from the core in the direction of length of the core, and the insulating member is connected and fixed at an overlap area with the spacer ring, thus further restricting the position of the spacer ring. The insulating member comprises a thermosensitive layer, enabling same to be assembled rapidly by means of rolling using a hot-press roller. The insulating member is a multi-layer composite film; thus, while the puncture resistance of the insulating member is improved, the risk of degradation of the insulating member can also be reduced.
Resumen de: WO2025206478A1
An electrochemical cell comprises a positive electrode, a negative electrode, a first separator between the positive electrode and the negative electrode, and first and second reference electrodes disposed between the positive electrode and the first separator. The first reference electrode is configured to measure the potential of the negative electrode during discharge, and the second reference electrode is configured to measure the potential of the negative electrode during charge.
Resumen de: WO2025200762A1
A secondary battery and an electronic device. The secondary battery comprises a positive electrode, a negative electrode and an electrolyte. The positive electrode comprises a positive electrode current collector and a positive electrode material layer, wherein the positive electrode material layer comprises a first material layer and a second material layer; the second material layer is arranged between the positive electrode current collector and the first material layer; the first material layer comprises lithium cobalt oxide, the lithium cobalt oxide comprises a first element, and the first element comprises magnesium, titanium and aluminum; and the second material layer comprises an inorganic additive. The electrolyte comprises a tricarbonitrile compound. Based on the total mass of the positive electrode material, the mass content of the first element is n1, wherein 800 ppm≤n1≤10000 ppm.
Resumen de: WO2025205134A1
This polyimide is a product of a reaction between a diamine compound represented by general formula (1) and an acid anhydride represented by general formula (2).
Resumen de: WO2025204684A1
Provided is a method for producing a recycled positive electrode active material including the following steps. Step (1): a step for obtaining a mixture by mixing a positive electrode mixture containing a positive electrode active material and an activation treatment agent containing one or more alkali metal compounds; step (2): a step for heating the mixture to a temperature equal to or higher than the melting start temperature of the activation treatment agent in the presence of oxygen having a flow rate equal to or higher than 0.020 L/min per 1 L heating space to obtain a heated mixture; and step (3): a step for recovering the heated positive electrode active material from the heated mixture.
Nº publicación: WO2025200424A1 02/10/2025
Solicitante:
BYD COMPANY LTD [CN]
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Resumen de: WO2025200424A1
A cover plate assembly (200) for a battery cell (1000), a battery cell (1000), a battery assembly (10), and an electric device (1). The cover plate assembly (200) for the battery cell (1000) comprises a cover plate body (210), a terminal post (250), an insulating member (400), and a buffer member (500); a mounting opening (212) is formed on the cover plate body (210); the terminal post (250) passes through the mounting opening (212); the insulating member (400) is arranged at the mounting opening (212) and is located between the terminal post (250) and the cover plate body (210) so that the cover plate body (210) and the terminal post (250) are insulated and spaced; the terminal post (250) is provided with a first limiting portion (251) located on one side of the cover plate body (210); the first limiting portion (251) is used for limiting and fixing the terminal post (250) and the insulating member (400) relative to the cover plate body (210); and the buffer member (500) is arranged between the insulating member (400) and the first limiting portion (251). The cover plate assembly (200) for the battery cell (1000) can, to a certain extent, prevent the first limiting portion (251) from directly pressing the insulating member (400) during a molding process, and distribute and buffer the pressing force exerted by the first limiting portion (251) on the insulating member (400), thereby preventing the insulating member (400) from being cracked, ensuring the working performance of
BOPI
Sede Electrónica
