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1900
resultados
Última actualización
05/10/2025 [07:18:00]
Resultados 475 a 500 de 1900
Resumen de: WO2025204942A1
This battery (10) comprises: an electrode body (14) in which a positive electrode (11) and a negative electrode (12) are wound via a separator (13); an outer can (20) that has a cylindrical part (20A) including a groove part (28) recessed inward in the radial direction over the entire circumference in the circumferential direction, and houses the electrode body (14); and a sealing body (19) that is crimped and fixed to the opening of the outer can (20) via a gasket (24). The sealing body (19) has a movement suppression part that suppresses movement of the gasket (24).
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: 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: WO2025200221A1
A battery, a negative electrode sheet, a preparation method for the negative electrode sheet, and an electric device. The battery comprises the negative electrode sheet, and the negative electrode sheet comprises a base layer and a negative electrode active layer arranged on at least one side surface of the base layer; the negative electrode active layer comprises a negative electrode active material and an interface material, the negative electrode active material comprises a graphite material, and the interface material comprises an organic salt containing a metal element; the metal element includes one or more of Li, Na, K, Mg, or Al, and the organic salt comprises organic acid anions; and in addition to the carboxyl group involved in salt formation, the organic acid anions comprise at least one functional group, and the functional group includes any one of carbon-carbon double bonds, amino groups, or ether groups. The method can improve the initial efficiency and prolong the cycle life of the battery.
Resumen de: WO2025200150A1
A sodium ion battery electrolyte capable of reducing solvated sodium ions and an application of the electrolyte, relating to the technical field of sodium ion batteries. A low-cost halogen organic compound solution is used as a cosolvent to dilute an electrolyte having a conventional concentration, so that special complex processes are reduced, the present invention is suitable for large-scale industrial production, and the product performance is relatively good; a non-solvating solvent insoluble in sodium salt is used as a cosolvent to dilute an electrolyte having a conventional concentration, so that the solvation effect of sodium ions can be reduced, the migration of free sodium ions during the charging and discharging of sodium ions is improved, the ionic conductivity of sodium ions can be improved, the discharge capacity of the battery is increased, and the cycle life of the battery is prolonged.
Resumen de: WO2025200149A1
A sulfonate-based additive-containing electrolyte for a sodium-ion battery, and the use thereof in the technical field of sodium-ion batteries. The sulfonate-containing metal organic film-forming additive can form a compact and uniform SEI film on the surface of an electrode, so as to stabilize interfaces of a positive electrode and a negative electrode. In addition, an electrostatic shielding layer is formed under the action of manganese ions, such that the generation of sodium dendritic crystals can be effectively inhibited.
Resumen de: WO2025204327A1
Provided is a cooling heat exchanger having a novel structure and being capable of improving cooling performance while improving connection strength and deformation rigidity of a first member and a second member. In this cooling heat exchanger 10, a cooling flow path 66 in which a cooling heat medium flows is formed inside the cooling heat exchanger, and a to-be-cooled object 78 superimposed on a cooling surface 16 of a surface of the cooling heat exchanger is cooled. The cooling flow path 66 is formed between the overlapping surfaces of the first member 12 and the second member 14 provided with the cooling surface 16. The first member 12 and the second member 14 are fixed to each other at a support column part 46 protruding from the second member 14 toward the first member 12. The heat exchanger includes a diversion forming surface 49 in which a portion positioned on the upstream side of the cooling flow path 66 on the outer peripheral surface of the support column part 46 diverts the heat medium flowing in the cooling flow path 66 to both sides of the support column part 46. A diversion agitation protrusion 56 protruding from the second member 14 toward the cooling flow path 66 is positioned on the downstream side of the support column part 46 in the flow path of the heat medium branched and flowing to both sides of the support column part 46.
Resumen de: WO2025204685A1
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 nitrogen having a flow rate equal to or higher than 0.070 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.
Resumen de: WO2025204009A1
The present invention provides a carbon nanotube assembly which has excellent conductivity when used in the form of a carbon nanotube dispersion liquid, and applications thereof. The present invention provides a carbon nanotube assembly which satisfies the following conditions (1) and (2), and applications thereof. (1) The ratio of the pore volume to the BET specific surface area is 0.0100 μm to 0.0200 μm. (2) The ratio of the volume resistivity under the pressure of 20 kN to the volume resistivity under the pressure of 1 kN is 0.18 to 0.30 inclusive.
Resumen de: WO2025201144A1
A control circuit, comprising a first switch control unit (21), a second switch control unit (22), and an inductive device unit (23) arranged between the first switch control unit and the second switch control unit. A switching transistor of the first switch control unit and a switching transistor of the second switch control unit are alternately turned on and off according to a predetermined timing sequence, so as to perform self-heating of a battery (10) via charging and discharging of the inductive device unit. The control circuit enables self-heating of the battery via charging and discharging of the inductive device unit, thereby preventing the charging and discharging power of the battery from being affected in low-temperature environments. In addition, the invention further relates to a control method, a vehicle controller, and an electric vehicle.
Resumen de: WO2025199689A1
A secondary battery and an electronic device, belonging to the technical field of batteries. The secondary battery comprises a positive electrode sheet and an electrolyte, the electrolyte comprising a carboxylate compound and lithium difluorophosphate. The carboxylate compound comprises at least one of compounds of which the molecular formula is R1COOR2, where R1 and R2 are each independently selected from an alkyl group or halogenated alkyl group of C1 to C6. Using the electrolyte as a reference, the mass content of the carboxylate compound is a%, and the mass content of lithium difluorophosphate is b%, 2≤b≤8.8 and 6≤a/b≤28. The coordination between lithium difluorophosphate and the carboxylate compound improves the cycle performance and high-temperature storage performance of secondary batteries.
Resumen de: WO2025206765A1
The present invention relates to: a cathode active material capable of improving the performance of a lithium secondary battery; and a cathode and a lithium secondary battery which comprise the cathode active material. The cathode active material comprises: a lithium composite transition metal oxide in the form of a single particle composed of 50 or less primary particles; and a coating layer containing a coating element and formed on the lithium composite transition metal oxide, wherein the coating element is at least one selected from the group consisting of Zn, Co, Ti, Nb, V, Mo, W, Al, Zr, and B, the dibutylphthalate (DBP) oil absorption per 100 g of the cathode active material is 25.0 ml or less, and the circularity according to Equation 1 described in the present specification is 0.70 or more.
Resumen de: WO2025206032A1
Disclosed is an active material which contains a compound and a conductive material. The compound contains a lithium (Li) element, a sulfur (S) element, a phosphorus (P) element, an M element (M is at least one element selected from among iron (Fe), titanium (Ti), germanium (Ge), antimony (Sb), silicon (Si), tin (Sn), aluminum (Al), nickel (Ni), cobalt (Co), and manganese (Mn)), and a halogen (X) element, and satisfies the following relational expressions (1) to (4): (1) 6.0 ≤ Li/(M + P) ≤ 10.0; (2) 0.0 ≤ X/(M + P) ≤ 1.6; (3) 0.0 < (X + M)/(M + P) < 1.6; and (4) 0.0 < M/(M + P) < 1.0. The active material satisfies a specific relationship in X-ray diffraction measurement using CuKα1 rays.
Resumen de: WO2025203562A1
The purpose of the present invention is to provide a method for manufacturing a sulfur mold with which it is possible to reduce the necessity of disposing an adjustment object in a mold cavity in order to adjust the size of a space in the mold cavity, and improve manufacturing efficiency. A method for manufacturing a sulfur mold according to the present invention is a method for manufacturing a sulfur mold 1002 having a predetermined shape in which a conductive material is impregnated with sulfur, which is an anode active material of a sodium-sulfur battery, and includes a step for injecting a molten sulfur 30 into a mold cavity 20 from an injector 3 connected to a mold 2 after disposing a conductive material 21 in the mold cavity 20 in the mold 2. The injection of the molten sulfur 30 by the injector 3 is performed at an injection time determined on the basis of the weight of the conductive material 21 measured before the injection of the molten sulfur 30, and at a constant injection pressure.
Resumen de: WO2025203118A1
The present invention relates to a bus bar (1) capable of electrically connecting with terminals of a battery or cell using laser power source welding. The bus bar (1) comprises of a plurality of first contact portions (10) and a plurality of second contact portions (20). The first contact portion (10) of the bus bar is connected to a negative terminal of a battery cell and the second contact portion (20) of the bus bar is connected to the positive terminal of the battery cell.
Resumen de: WO2025199795A1
A secondary battery (100) and an electronic device (1000). The secondary battery (100) comprises an electrode assembly (20) and a first tab (30). The electrode assembly (20) comprises a first electrode sheet (21), a second electrode sheet (22) and a separator (23) arranged between the first electrode sheet (21) and the second electrode sheet (22), wherein the first electrode sheet (21), the second electrode sheet (22) and the separator (23) form a wound structure. The first electrode sheet (21) comprises a first current collector (211) and a first active material layer (212) which are stacked, the first current collector (211) is provided with a first connection region (2111), and the first connection region (2111) is not provided with the first active material layer (212). The first tab (30) is welded to the first connection region (2111); the first connection region (2111) comprises a plurality of welding regions (211a); the plurality of welding regions (211a) are arranged in the winding direction of the electrode assembly (20); and at least one welding mark (203) formed by welding the first tab (30) and the first connection region (2111) is provided in the welding regions (211a). In the winding direction of the electrode assembly (20), the welding mark (203) in the welding region (211a) among the plurality of welding regions (211a) closest to the winding center of the electrode assembly (20) has a minimum welding strength. It is conducive to improving the tensile capacity
Resumen de: WO2025205529A1
Provided is a laminated all-solid-state battery which hardly causes a decrease in energy density. This all-solid-state battery comprises: a plurality of laminates (3) in which a positive electrode layer (31) and a negative electrode layer (32) are laminated; a positive electrode current collector (4); and a negative electrode current collector (6). The positive electrode layers (31) face each other and the negative electrode layers (32) face each other between the laminated plurality of laminates (3). The positive electrode current collector (4) is folded back along one side surface (3a) of each of first and second laminates (3) so as to contact the positive electrode layer (31) of the first laminate (3) and the positive electrode layer (31) of the second laminate (3) laminated on the first laminate (3). The negative electrode current collector (6) is folded back along the other side surface (3b) of each of second and third laminates (3) on the side different from the one side surface (3a) so as to contact the negative electrode layer (32) of the second laminate (3) and the negative electrode layer (32) of the third laminate (3) laminated on the second laminate (3).
Resumen de: WO2025200282A1
A battery module (10), a battery (100), and an electric device. The battery module (10) comprises at least two battery columns (11) and a plurality of first insulating members (12). Each battery column (11) comprises at least two battery cells (110) arranged side by side in a first direction (X), an end cap (111) of each battery cell (110) is provided with two terminals (112) respectively located at two ends thereof in the first direction (X), the at least two battery columns (11) are arranged in a second direction (Y) perpendicular to the first direction (X), the end caps (111) of all the battery cells (110) of the at least two battery columns (11) face the same direction, such that the battery cells (110) of different battery columns (11) at the corresponding positions form battery rows, and the plurality of terminals (112) of the plurality of battery rows form a plurality of terminal rows, each terminal row extending in the second direction (Y). The first insulating members (12) are correspondingly arranged to cover above the terminal rows, a first insulating member (12) corresponds to each terminal row, and the first insulating member (12) avoids a pressure relief structure (114). This technical solution can effectively prevent the ignition problem caused by thermal diffusion and improve the operational reliability of the battery.
Resumen de: WO2025204459A1
An all-solid-state battery (1) is provided with an electrode laminate (10) and an exterior film (20) that accommodates the electrode laminate (10). Sealing parts (21, 22) of the exterior film (20) are disposed in a direction orthogonal to the lamination direction of the electrode laminate (10), and gaps (11A, 12A, 13A, 14A) are provided between the exterior film (20) and the electrode laminate (10) along edges (11, 12, 13, 14) of the outermost surface of the electrode laminate (10) in the lamination direction.
Resumen de: WO2025201212A1
The present application discloses a busbar, a battery pack, and a vehicle. The busbar comprises a buffer section and two battery cell connecting sections. The buffer section comprises at least two bending structures which are continuously arranged in a first direction. The two battery cell connecting sections are arranged on two opposite sides of the buffer section in the first direction. The at least two bending structures include at least one first bending structure and at least one second bending structure; the first bending structure and the second bending structure are arranged in a staggered manner in the first direction; the first bending structure and the second bending structure respectively protrude from any side of two opposite sides of the battery cell connecting sections in a second direction; and the first direction intersects the second direction. The busbar disclosed in the present application is not easily damaged under the action of an external force, and the busbar has relatively good working stability.
Resumen de: WO2025200389A1
An electrical device. The electrical device comprises an energy storage system, the energy storage system comprises a connecting structure for cases of the energy storage system, and the connecting structure for the cases of the energy storage system comprises first connecting assemblies and a second connecting assembly. The first connecting assemblies are suitable for being electrically connected to cells in the cases. Each first connecting assembly comprises first snap-fit portions. The second connecting assembly is electrically connected to the first connecting assemblies. The second connecting assembly comprises second snap-fit portions. The second snap-fit portions are snap-fitted to the first snap-fit portions.
Resumen de: WO2025204301A1
Provided is a solid-state battery package comprising a substrate, a solid-state battery that is provided on the substrate, an insulating layer that covers the solid-state battery so as to be in contact with the solid-state battery, and a metal exterior body that covers the insulating layer so as to be in contact with the insulating layer and that is joined to the substrate, wherein the metal exterior body has a groove portion.
Nº publicación: WO2025203244A1 02/10/2025
Solicitante:
NISSAN MOTOR CO LTD [JP]
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Resumen de: WO2025203244A1
Provided is a battery temperature control method for controlling a battery temperature regulation system comprising: an air conditioning case that accommodates a heat exchanger, a heating device, and a regulator that regulates the mixing ratio of air that has passed through the heat exchanger and air that has passed through the heating device; a first air passage for supplying outside air introduced into the air conditioning case to a battery case; a second air passage for supplying the air that has passed through the heat exchanger to the battery case; a third air passage for supplying the air that has passed through the heating device to the battery case; a fourth air passage for supplying the air that has passed through the regulator to the battery case; a fifth air passage for supplying air in a vehicle cabin to the battery case; a case inner passage that is provided in the battery case and that is a battery temperature regulation passage; and a sixth air passage for recirculating air that has passed through the case inner passage in the battery case, wherein a controller regulates the amount of air supplied to the battery case from each air passage from the first air passage to the fifth air passage, according to the temperature of the battery.
BOPI
Sede Electrónica
