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1893
resultados
Última actualización
04/10/2025 [08:24:00]
Resultados 700 a 725 de 1893
Resumen de: WO2025204483A1
Provided is a ferritic stainless steel foil exhibiting excellent corrosion resistance. A ferritic stainless steel foil according to the present disclosure is provided with a foil main body made of ferritic stainless steel, wherein, in an inverse pole figure in the ND direction obtained by measuring the rolled surface of the foil main body by an electron backscattered diffraction method, the maximum pole density M001 in the 001 orientation and the maximum pole density M111 in the 111 orientation satisfy formula (1). M001/M111 ≤ 0.16 (1)
Resumen de: WO2025205778A1
This compound satisfies formula (1). In formula (1), α and β each independently represent a value more than 0, γ represents a value more than 0 but less than 6, D represents an alkali metal element, M includes an element that becomes a metallic cation other than an alkali metal element, X represents a halogen, and A represents an atomic group that becomes a polyatomic anion including two or more types of elements. (1): DαMβX6-γAγ
Resumen de: WO2025199998A1
A marking and tracing method for lithium batteries, the method comprising: before cutting of an electrode sheet material tape, etching a two-dimensional code pattern on the electrode sheet material tape by means of a first laser assembly (100) and simultaneously etching a line pattern on the electrode sheet material tape by means of a second laser assembly (200), wherein the line pattern is used for marking a defect of the electrode sheet material tape; and, during electrode sheet cutting, first identifying line patterns by means of a visual sensor, and, if a line pattern is detected, performing skip cutting on a material tape region where the line pattern is located. The method facilitates rapid etching of lasers.
Resumen de: WO2025200430A1
A vehicle, comprising a battery heat exchanger or a battery pack. The battery pack comprises a battery cell and the battery heat exchanger. The battery heat exchanger comprises a parallel flow structure; the parallel flow structure comprises a first collecting channel, a second collecting channel and at least two diverging channels; each diverging channel has one end connected to the first collecting channel and the other end connected to the second collecting channel; and the at least two diverging channels are parallel to each other.
Resumen de: WO2025204336A1
This negative electrode (12) has a negative electrode current collector (40) and a negative electrode mixture layer (41) disposed on the surface of the negative electrode current collector (40), wherein the negative electrode mixture layer (41) contains, as a negative electrode active material, graphite particles A having an internal porosity of 5% or less and graphite particles B having an internal porosity of 8-20%, and the graphite particles A are contained in a larger amount in a region on the winding inner end side than in a region on the winding outer end side when the negative electrode mixture layer 41 is divided into two equal parts in the lengthwise direction.
Resumen de: WO2025204706A1
This production method for a recycled positive electrode active material includes the following steps: (1) a step in which a positive electrode mixture containing a positive electrode active material and a carbon-containing material and an activation treatment agent containing one or more alkali metal compounds are mixed to obtain a mixture; (2) a step in which the mixture is heated at a temperature lower than the melting onset temperature of the activation treatment agent and a heated mixture is obtained; and (3) a step in which the heated positive electrode active material is recovered from the heated mixture.
Resumen de: WO2025200588A1
A battery module thermal runaway test tool (100) and device (1000). The battery module thermal runaway test tool (100) comprises: a housing (110), which comprises a case body (111) and a case cover (112) that are detachably connected to each other, the case body (111) and the case cover (112) defining an accommodating cavity (110a) used for accommodating a battery module (10), and an inner wall of the case body (111) being provided with cooling liquid recesses (111a), and a liquid inlet (111b) and a liquid outlet (111c) that lead to the cooling liquid recesses (111a); a pressing plate assembly (120), which is used for fixing the battery module (10), located in the accommodating cavity (110a) and detachably connected to the case body (111), the pressing plate assembly (120) being provided with a hoisting part (121); and an explosion-proof valve (130), which is mounted on the housing (110). The battery module thermal runaway test tool can reflect real situations of battery modules installed in battery pack housings, achieving more reasonable, scientific and authentic test results and smaller test errors.
Resumen de: WO2025205560A1
The present invention provides a method for producing a sulfide solid electrolyte by irradiating a solid electrolyte starting material with microwaves, the method including: obtaining an amorphous product by subjecting a starting material-containing material that contains a lithium atom, a phosphorus atom, a sulfur atom, and a halogen atom, or a calcined product that is obtained by heating the starting material-containing material to an amorphization treatment; and performing microwave irradiation on a mixture of the amorphous product and an organic solvent. With the method, it is possible to efficiently produce a sulfide solid electrolyte that has more excellent ionic conductivity, while maintaining particle diameters by suppressing granulation due to heating.
Resumen de: WO2025203928A1
Provided are: a heat transfer suppression sheet that has excellent sheet strength and makes it possible to inhibit inorganic particles from falling off, maintain excellent thermal insulation performance, and mitigate stresses from impacts, pressing force, and the like; and a battery pack having the heat transfer suppression sheet. The heat transfer suppression sheet (10) includes inorganic particles (4) and organic fibers (11) and has, on at least one of the front surface and the back surface thereof, a fiber aggregate section (2) formed by intertwining a plurality of the organic fibers (11), and a recess (3) recessed from the fiber aggregate section (2). In addition, the battery pack includes a plurality of battery cells and the heat transfer suppression sheet (10), and the plurality of battery cells are connected in series or in parallel.
Resumen de: WO2025205496A1
A lithium ion secondary battery (10) provided with a positive electrode that includes a positive electrode active material layer (1), a negative electrode that includes a negative electrode active material layer (2), and an electrolyte, wherein: the negative electrode active material included in the negative electrode active material layer (2) has an SEI film on at least a portion of the surface thereof; the electrolyte contains lithium tetrafluoroborate; and the lithium tetrafluoroborate concentration in the electrolyte determined using a prescribed method is 0.01 mass% to 0.50 mass%.
Resumen de: WO2025205495A1
A lithium ion secondary battery (10) provided with a positive electrode that includes a positive electrode active material layer (1), a negative electrode that includes a negative electrode active material layer (2), and an electrolyte, wherein: the negative electrode active material included in the negative electrode active material layer (2) has an SEI film on at least a portion of the surface thereof; the electrolyte contains lithium difluorophosphate; and the lithium difluorophosphate concentration in the electrolyte determined using a prescribed method is 0.01 mass% to 1.10 mass%.
Resumen de: WO2025206828A1
A cathode active material for a lithium secondary battery according to the present invention is a cathode active material for a single-crystal active material for a lithium secondary battery, wherein the cathode active material comprises an aggregate of 1 to 20 single particles, and the single particles may satisfy equation 1 in the present specification.
Resumen de: WO2025200127A1
Provided in the embodiments of the present application are a battery and an electric device. The battery comprises a case, thermal management components, supporting members and a plurality of battery cell groups. The plurality of battery cell groups are arranged in the case, and each battery cell group comprises at least one battery cell. In a first direction, the battery cell groups are provided on both sides of each thermal management component, and the thermal management components are configured to manage the temperature of battery cells. The supporting members are arranged in the case and are connected to the case. In the first direction, the supporting members and the thermal management components are stacked, and the supporting members support the thermal management components. The battery can reduce the risk that the battery cell groups on lower sides of the thermal management components are damaged due to the fact that said battery cell groups bear the gravity of the battery cell groups on upper sides of the thermal management components, thereby reducing the risk of the battery cells deforming and short-circuiting due to damage, and thus improving the reliability of the battery.
Resumen de: WO2025205085A1
This non-aqueous electrolyte secondary battery comprises: a negative electrode that contains a negative electrode mixture; a separator; a positive electrode that faces the negative electrode with the separator therebetween; and a non-aqueous electrolyte. The negative electrode mixture contains a negative electrode active material. The internal porosity of particles of a silicon-containing material is 6-20%. The non-aqueous electrolyte contains, at a concentration of 0.1-2 mass%, a five-membered or six-membered cyclic compound component which includes elemental sulfur as a constituent element of the ring thereof.
Resumen de: WO2025204686A1
This method of producing a recycled cathode active substance powder includes: a step (1) of mixing, into a cathode composite containing cathode active substance powder and a carbon-containing material, an activating agent to obtain a mixture; a step (2) of heating the mixture to obtain a post-heating mixture containing post-heating cathode active substance powder; and a step (3) of removing components apart from the post-heating cathode active substance powder from the post-heating mixture. The step (3) includes: a sub-step (A1) of bringing a liquid that contains water into contact with the post-heating mixture or the mixture resulting from the partial component removal, so as to obtain a slurry S1 containing the post-heating cathode active substance powder; a sub-step (A2) of wet-classifying, within the slurry S1, the post-heating cathode active substance powder so as to obtain a slurry S2 containing the post-heating cathode active substance powder having a relatively small average particle size, and a slurry S3 containing the post-heating cathode active substance powder having a relatively large average particle size; and a sub-step (A3) of subjecting the slurry S3 to solid/liquid separation.
Resumen de: WO2025205532A1
This method for manufacturing a cylindrical battery (10) includes a welding step for welding a negative-electrode core-exposed part (41) constituting a height-direction end of an electrode body (14) to a lower current collector plate (19). The method for manufacturing the cylindrical battery (10) includes performing, before the welding step, a first bending step for bending the negative-electrode core-exposed part (41) inward in the radial direction, and a second bending step for bending a core-exposed portion (41a) that protrudes toward a hollow section (14a) of the electrode body (14) due to the first bending step toward the height-direction center of the electrode body (14).
Resumen de: WO2025205749A1
A negative electrode (12) comprises an elongated negative electrode core body (30) and a negative electrode mixture layer (31) provided on the negative electrode core body (30), and constitutes a wound electrode body (14). The negative electrode mixture layer (31) is divided into a central region (33) that is positioned in the center of the negative electrode core body (30) in the width direction and end regions (34) that are respectively positioned further to both end sides of the negative electrode core body (30) in the width direction than the central region (33), and is configured such that, in a state in which the battery is 100% charged, the thickness (A) of the central region (33) is smaller than the thickness (B) of the end region (34) by not less than 1.5%, and the thickness difference (C) is not more than 10 μm.
Resumen de: WO2025206572A1
This all-solid-state secondary battery comprises a positive electrode layer, a negative electrode layer, and a solid electrolyte layer between the positive electrode layer and the negative electrode layer. The positive electrode layer includes a positive electrode current collector and a positive electrode active material layer on one surface or both surfaces of the positive electrode current collector. The positive electrode active material layer includes a positive electrode active material and a mixed ionic and electronic conductor. The mixed ionic and electronic conductor contains a metal oxide represented by MxNbyOz-δ (0≤x≤100; 0
Resumen de: WO2025204869A1
A nonaqueous electrolyte secondary battery (10) includes a positive electrode (11), a negative electrode (12), and a nonaqueous electrolyte solution containing a lithium salt and a nonaqueous solvent. The nonaqueous solvent contains a cyclic carbonate and a chain carbonate. The chain carbonate contains a first chain carbonate having a melting point of at most 0°C in an amount of 10-24 mass% with respect to the mass of the nonaqueous solvent.
Resumen de: WO2025206247A1
A power storage module (10) comprises: at least one power storage device (20); a case (40) in which the at least one power storage device (20) is housed; a cooling liquid (50) which is within the case (40) and in which the at least one power storage device (20) is immersed; and a duct (60) that exhausts gas within the case (40) and collects the cooling liquid (50) contained in the gas. The path of the duct (60) extends in a spiral shape. A wall (62) of the duct (60) also extends in a spiral shape.
Resumen de: WO2025200441A1
The present application provides an electrode sheet cutting device and a battery electrode sheet thermal lamination apparatus. The electrode sheet cutting device comprises a conveyor belt, the conveyor belt comprising an upper surface and a lower surface which are oppositely arranged; upper driving rollers, arranged on the upper surface; lower driving rollers, arranged below the lower surface; and a laser cutter. The upper driving rollers comprise a first upper driving roller and a second upper driving roller which are arranged on the two sides of the laser cutter respectively and close to the laser cutter.
Resumen de: WO2025204704A1
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 and nitrogen having a total flow rate of at least 0.100 L/min per 1 L heating space to obtain a heated mixture; Step (3): A step for recovering the heated positive electrode active material from the heated mixture.
Resumen de: WO2025200938A1
Disclosed in the present application are a solid-state electrolyte material and a preparation method therefor, a positive electrode active material, a positive electrode sheet, a solid-state battery and an electric device. The solid-state electrolyte material is of a NASICON crystal structure. In an X-ray diffraction pattern of the solid-state electrolyte material, characteristic diffraction peaks appear at positions where the values of the diffraction angle 2θ are 14.5-14.8º, 19.5-19.7º, and 22.5-22.8º, respectively, wherein the ratio of the peak intensity I1 of the characteristic diffraction peak at the position where the value of the diffraction angle 2θ is 14.5-14.8º to the peak intensity I2 of the characteristic diffraction peak at the position where the value of the diffraction angle 2θ is 22.5-22.8° satisfies: 1.5≤I2/I1≤3. Therefore, the ionic conductivity and structural stability of the solid electrolyte are improved.
Resumen de: WO2025205031A1
This battery pack comprises: a plurality of battery blocks in which block through-holes passing through a pair of block main surfaces are opened on each of the block main surfaces; a plurality of heat radiation plates in which plate opening holes are opened at positions facing the end surfaces of the block through-holes between adjacent battery blocks; a plurality of heat radiation tubes each of which is inserted into each of the block through-holes and in which a tube through-hole is formed; and a connection shaft that is inserted into the series of tube through-holes while the heat radiation tubes are arranged in coaxial orientations on front and rear surfaces of the plurality of heat radiation plates so that each of the tube through-holes in the front and rear surfaces communicate via the plate opening holes, the connection shaft connecting the plurality of battery blocks via the series of heat radiation tubes while the heat radiation tubes and the heat radiation plates are thermally coupled.
Nº publicación: WO2025205257A1 02/10/2025
Solicitante:
PANASONIC INTELLECTUAL PROPERTY MAN CO LTD [JP]
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Resumen de: WO2025205257A1
A secondary battery negative electrode (12) is characterized by: comprising a long negative electrode core (30), and a negative electrode mixture layer (32) disposed on the negative electrode core (30); including a first end region (12a) on one end side in the longitudinal direction of the negative electrode mixture layer (32), and a second end region (12b) on the other end side in the longitudinal direction of the negative electrode mixture layer (32); the first end region (12a) having a negative electrode plate charge swelling rate smaller than that of the second end region (12b); and the ratio (E1 / E2) of a negative electrode plate charge swelling rate (E1) of the first end region (12a) to a negative electrode plate charge swelling rate (E2) of the second end region (12b) being 0.80 or less.
BOPI
Sede Electrónica
