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1893
resultados
Última actualización
04/10/2025 [08:24:00]
Resultados 625 a 650 de 1893
Resumen de: WO2025206915A1
The present invention relates to a battery system with identical wireless communication performance. A battery system that performs wireless communication by a frequency hopping method, according to an embodiment of the present invention, may comprise: a plurality of battery modules; a single antenna; a plurality of slave BMSs which are connected to the plurality of battery modules, respectively, generate a plurality of pieces of battery information by sensing states of the plurality of battery modules, and provide, to the single antenna, a plurality of sensing signals respectively including the plurality of pieces of battery information; and a master BMS which is connected to an antenna, receives, through the antenna, the plurality of sensing signals transmitted through the single antenna, acquires the plurality of pieces of battery information according to the plurality of sensing signals, generates, by using the plurality of acquired pieces of battery information, a plurality of control signals that control the plurality of battery modules, and transmits the plurality of control signals to the single antenna through the antenna.
Resumen de: WO2025205815A1
A cylindrical battery, which is an example of an embodiment of the present invention, comprises an electrode body (14) in which a positive electrode (11) and a negative electrode (12) are wound with a separator (13) in between and a bottomed cylindrical exterior can (16) accommodating the electrode body (14). The negative electrode (12) extends farther to the winding start side of the electrode body (14) than a position facing a positive electrode starting end (11x). The electrode body (14) has a negative electrode facing part where the winding inner surface and the winding outer surface of the negative electrode (12) face each other across the separator (13), and a spacer (50) disposed in the negative electrode facing part. At least a part of the spacer (50) is disposed within a range of no more than 140° from the positive electrode starting end (11x) toward the winding start side along the winding direction with respect to a winding center Z of the electrode body (14).
Resumen de: WO2025200257A1
Embodiments of the present disclosure relate to the technical field of battery production, and disclose a formation negative pressure system and a control method therefor. The formation negative pressure system comprises a first positive pressure gas source, a negative pressure source, and a negative pressure module; the first positive pressure gas source is configured to provide dry gas; the negative pressure module comprises a gas nozzle; one end of the gas nozzle is selectively communicated with the first positive pressure gas source or the negative pressure source, and the other end of the gas nozzle is configured to be matched with a liquid injection hole of a battery cell; the negative pressure source is configured to be capable of vacuumizing the battery cell by means of the gas nozzle. According to the formation negative pressure system of the embodiments of the present disclosure, a small-range dry gas protection layer can be conveniently formed around the liquid injection hole of the battery cell by means of the first positive pressure gas source, and by means of the dry gas protection layer, even if a formation workshop is in a high-humidity environment, water vapor cannot flow into the battery cell, that is, it is not needed to dehumidify the whole formation workshop by means of a dehumidification system, thereby being conducive to reducing the production energy consumption of the battery cell.
Resumen de: WO2025206833A1
Disclosed in the present specification are: a composite to be applied to products or devices that are in an abnormal state or are likely to be in an abnormal state, so as to effectively respond to the abnormal state; and a fire extinguishing device. For example, the composite and the like are applied to an article including a plurality of the products or devices, so as to respond to abnormal heat generation, explosions and ignition that occur in any one device or product, and prevent or minimize the propagation of the heat generation, explosions and ignition in other adjacent devices or products. The composite and the like also exhibit excellent handling properties and storage stability. The present specification can also provide uses of the composite and the like.
Resumen de: WO2025204917A1
A secondary battery according to the present disclosure comprises a positive electrode, a negative electrode, and a nonaqueous electrolyte. At least one selected from the group consisting of the positive electrode, the negative electrode, and the nonaqueous electrolyte contains a polymer of an ethylenically unsaturated carboxylic acid compound and a polyalkylene glycol compound having three or more hydroxyl groups.
Resumen de: WO2025205592A1
An active material according to the present invention comprises core material particles and a coating part disposed on the surface of the core material particles. The coating part contains at least one of lithium sulfide and lithium halide. It is preferable that the coating part furthermore contains at least one of lithium sulfate and a lithium salt of phosphoric acid. The lithium salt of phosphoric acid is preferably lithium metaphosphate. The total amount of lithium halide and lithium sulfide is preferably 0.01-0.80 parts by mass with respect to 100 parts by mass of the core material particles. The lithium halide is preferably lithium chloride, lithium bromide, or lithium iodide. The coverage of the coating part is preferably 30-100%.
Resumen de: WO2025205322A1
The present invention addresses the problem of providing: a carbon nanotube dispersion paste and a composite paste that have excellent pigment dispersibility and storage stability even at high pigment concentrations; and an electrode layer for a non-aqueous electrolyte secondary battery that has excellent performance (electric conductivity, battery performance, etc.). As the solution, provided is a carbon nanotube dispersion paste for a non-aqueous electrolyte secondary battery that contains at least a dispersion resin (A), carbon nanotubes (B), and a solvent (C), wherein: the dispersion resin (A) contains at least a structural unit (a-1); and the BET specific surface area of the carbon nanotubes (B) is 100 m2/g to 1000 m2/g.
Resumen de: WO2025205550A1
According to the present invention, an electrode body is held in an appropriate position with respect to a current collector even after positioning has been released. This method for manufacturing an all-solid-state battery includes: a lamination step in which an electrode body (3) and a current collector (4) having a plurality of through-holes (4a) disposed so as to surround an opening (42a) are alternately laminated onto a mounting surface (63a) of a mounting table (63), the lamination step including a first disposition step in which the current collector 4 is disposed such that each of a plurality of positioning members (64) that are in contact with the opening (42a) and that extend in a direction perpendicular to the mounting surface (63a) in positions matching each of the plurality of through-holes (4a) pass respectively through the corresponding plurality of through holes (4a), and a second disposition step in which the electrode body (3) is disposed in the opening (42a) of the current collector (4) so as to run alongside the plurality of positioning members (64), the first disposition step and the second disposition step being repeated a plurality of times; a fixing step in which the laminated state of the laminated electrode bodies (3) and current collectors (4) is fixed; and a removal step in which the positioning members (64) are removed from the through-holes (4a).
Resumen de: WO2025200585A1
A lithium battery negative electrode, which comprises a silicon-based/graphite composite electrode material and polyanthraquinonylimide lithium. By introducing the polyanthraquinonylimide lithium into the lithium battery negative electrode, additional active lithium ions can be provided for a battery system during cycling, and lithium loss caused by the formation of an SEI film on the surface of the negative electrode can be compensated, such that the initial coulombic efficiency of the battery is improved, and the release of the battery capacity is improved. Moreover, the polyanthraquinonylimide lithium itself has relatively good mechanical properties, solvent resistance, and relatively good elasticity and relatively high tensile strength, and thus can withstand the volume change of silicon-based particles during charge-discharge cycles, and prevent the silicon-based negative electrode from powdering, thereby improving the long cycling performance of the battery. In addition, the carbonyl group in the polyanthraquinonylimide lithium can provide additional capacity for the negative electrode during cycling.
Resumen de: WO2025203295A1
Disclosed is a battery module in which battery cells can be connected to each other and the voltage of each battery cell can be detected while the number of components and the amount of labor are reduced. A battery module 10 is configured from: battery cells 12a, 12b, 12c; and a current circuit 16 including a base end terminal 28, a distal end terminal 30, and first and second intermediate terminals 32, 34, the base end terminal 28 being conductively connected to the first battery cell 12a and a power-supply-input-side conductor 58, the distal end terminal 30 being conductively connected to the third battery cell 12c and a ground line 62, the first intermediate terminal 32 being conductively connected to the first battery cell 12a, the second battery cell 12b, and a circuit substrate 72 and constituting a first voltage detection line 118, the second intermediate terminal 32 being conductively connected to the second battery cell 12b, the third battery cell 12c, and the circuit substrate 72 and constituting a second voltage detection line 119, and the first to third battery cells 12a to 12c being connected in series by the base end terminal 28, the first intermediate terminal 32, the second intermediate terminal 34, and the distal end terminal 30.
Resumen de: WO2025204843A1
The present invention relates to a method for recovering lithium, said method having a high lithium recovery rate and excellent stability. That is, the present invention relates to a method for recovering lithium from a positive electrode material (A) for a lithium-ion secondary battery represented by formula (A): LiaMnbFecMxPO4, wherein, after completing a step (I) for adding an oxidizing agent and water to a positive electrode material (A) for a lithium-ion secondary battery to obtain a mixed liquid i, a step (II) for adjusting the pH of the obtained mixed liquid i to be 4 to 9 and mixing the mixed liquid i to obtain a mixed liquid ii, and a step (III-1) for filtering the obtained mixed liquid ii to obtain a filtrate iii containing lithium, the obtained filtrate iii is used to obtain, as a lithium-rich liquid, a filtrate iii' obtained by performing prescribed steps (I)' to (III-1)', and the obtained filtrate iii' is possibly used again as the filtrate iii in step (I)' to thereby repeat steps (I)' to (III-1)' multiple times to obtain, as a lithium-rich liquid, the ultimately obtained filtrate iii'.
Resumen de: WO2025207188A1
The present technology relates generally to a cathode for a lithium-sulfur battery and lithium-sulfur batteries including the cathode. The cathode includes about 25 wt.% to about 75 wt.% sulfur, about 1% to about 60% holey graphene, and about 2 wt.% to about 10 wt.% ferroelectric nanoparticles.
Resumen de: WO2025206625A1
An apparatus for manufacturing an electrode assembly in which a cathode plate and an anode plate are alternately stacked with a separator interposed therebetween, according to one embodiment of the present invention, comprises: a separator supply unit for supplying a separator; an electrode supply unit for supplying each of the cathode plate and the anode plate; and a plurality of stack units in which stacking is performed for the electrode assembly, wherein each of the plurality of stack units can move along a circulation path and, when stacking for the electrode assembly is completed in one of the plurality of stack units, the stacking can be performed in another one of the plurality of stack units.
Resumen de: WO2025205585A1
The present invention addresses the problem of providing a solid electrolyte that allows a solid state battery to be used safely even when the usage environment changes from a normal usage environment to a harsh usage environment. In an X-ray diffraction pattern of the solid electrolyte measured using an X-ray diffraction device employing CuKα radiation, the value of IA/IB is 1.0 or more, and the value of IC/ID is less than 0.90, where IA is the integrated intensity of a diffraction peak observed at a position of 2θ=15.4°±1°, IB is the integrated intensity of a diffraction peak observed at a position of 2θ=17.8°±1°, IC is the integrated intensity of a diffraction peak observed at a position of 2θ=25.3°±1°, and ID is the integrated intensity of a diffraction peak observed at a position of 2θ=29.7°±1°.
Resumen de: WO2025200317A1
A battery pack (100), comprising: a housing (10) provided with an accommodating space (101); a battery module (20) arranged in the accommodating space (101); a BMS module (30) spaced apart from the battery module (20); and an isolation plate (40) provided between the battery module (20) and the BMS module (30) and sealedly connected to the housing (10) so as to isolate the battery module (20) from the BMS module (30).
Resumen de: WO2025199679A1
The present invention belongs to the technical field of batteries, and provides a secondary battery and an electronic device. The secondary battery comprises a negative electrode sheet and an electrolyte, wherein the negative electrode sheet comprises a negative electrode active material layer, the negative electrode active material layer comprises silicon-containing active particles, and the spherization degree of the silicon-containing active particles is A; and the electrolyte contains fluoroethylene carbonate, and based on the mass of the electrolyte, the mass percentage content of fluoroethylene carbonate is B%, with A and B satisfying: 1.6≤(B/A)≤29.4. In this way, the synergistic effect between the spheroidization degree of the silicon material particles and the content of fluoroethylene carbonate can be fully exerted, and the crushing of the silicon particles and side reactions with the electrolyte are reduced, thereby improving the initial coulombic efficiency and cycle performance of the secondary battery and enhancing the over-discharge gas production resistance.
Resumen de: WO2025204998A1
The present invention provides a thermal insulation material (40) for a battery pack, said thermal insulation material being thin but yet exhibiting excellent thermal insulation properties. This thermal insulation material (40) for a battery pack includes a layered inorganic material sheet (42) obtained by laminating layered inorganic material papers (43), said thermal insulation material characterized by comprising voids, the size of which in the thickness direction is 10-100 μm inclusive, at least between the layered inorganic material papers.
Resumen de: WO2025204908A1
A secondary battery according to an example of an embodiment of the present invention comprises: an electrode body (14) that has a positive electrode (11) including a positive electrode core body (30) and positive electrode mixture layers (31), a negative electrode (12), and a separator (13), and that is formed by the positive electrode (11) and the negative electrode (12) being wound with the separator (13) interposed therebetween; an exterior body that accommodates the electrode body (14); and a sealing body that closes an opening of the exterior body. The positive electrode (11) has: a facing part (51) in which a positive electrode mixture layer (31) is formed on both surfaces of the positive electrode core body (30) and which faces the negative electrode (12) with the separator (13) interposed therebetween; and a non-facing part (51) which extends from a starting end (50x) of a facing part (50) to a winding center (Z) side of the electrode body (14), the facing part (50) facing a starting end (12x) of the negative electrode (12) located on a winding start side of the electrode body (14) with the separator interposed therebetween. The non-facing part (51) is characterized in that an insulating layer (52) is formed on both surfaces of the positive electrode core body (30).
Resumen de: WO2025203956A1
Provided is a cooling heat exchanger having a novel structure with which a double-sided cooling structure having a cooling surface on both sides is realized in a simple structure, and with which excellent cooling performance can be stably obtained. A cooling heat exchanger 10 has formed in the interior thereof a cooling channel 28 through which a cooling heat medium flows, and the cooling heat exchanger cools a cooling object 62 that is layered on a cooling surface 32 provided on the surface of the cooling heat exchanger. A hollow outer wall member 12 having the cooling channel 28 therein is provided. A pair of cooling wall parts 30, 30 each have the cooling surface 32 on a surface of the cooling wall parts, and the cooling wall parts are provided to mutually opposing sections of the outer wall member 12. In an internal region 28 of the outer wall member 12, arranged is a plate-like inner fin 34 bisecting the internal region 28 in the opposing direction of the pair of cooling wall parts 30, 30. A first projection 48a and a second projection 48b, each protruding to opposing surfaces, are formed integrally in the inner fin 34.
Resumen de: WO2025206058A1
This secondary battery comprises: an electrode group in which a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode are rolled; an electrolyte; an external canister in a closed-end cylindrical shape that accommodates the electrode group and the electrolyte; a sealing plate disposed at an opening section of the external canister with an insulating gasket interposed therebetween; a positive electrode lead that connects the positive electrode and the sealing plate; and a negative electrode lead that connects the negative electrode and an inner base surface of the external canister. The negative electrode includes a negative electrode collector and a negative electrode mixture layer that is supported on a surface of the negative electrode collector. At the outermost periphery of the negative electrode, the negative electrode mixture layer faces an inner surface of the external canister. The positive electrode lead is disposed within a region in which the radial distance of said lead from the rolling axis of the electrode group is less than 0.9R where R is the radius of the electrode group. When an external short circuit occurs, the amount of heat Q1 generated by the positive electrode lead and the amount of heat Q2 generated by the negative electrode lead satisfy the relationship Q2 < Q1.
Resumen de: WO2025204721A1
This active material layer has an active material, a solid electrolyte, and an electroconductive assistant. The solid electrolyte is expressed by formula (1): LiaEbGcXd. The contact area S1 (m2/m3) between the active material and the solid electrolyte per unit volume satisfies the expression 365000 < S1 < 385000.
Resumen de: WO2025200160A1
Disclosed in the present application are a lithium replenishing additive and a preparation method therefor, a positive electrode slurry and a battery. The lithium replenishing additive comprises: an inner core, the inner core satisfying the chemical formula LixM1yM21-yO6, wherein 6≤x≤8, 0
Resumen de: WO2025206446A1
The present disclosure relates to a secondary battery, and the technical problem to be solved is to provide a secondary battery allowing reduced welding resistance between electrode tabs and terminals and rapid heat dissipation when a plurality of electrode assemblies are being installed in a single case. To that end, provided is a secondary battery comprising: a plurality of electrode assemblies, each provided with a negative electrode plate having a uncoated negative electrode region and a positive electrode plate having a uncoated positive electrode region; a case for accommodating the electrode assemblies; a cap plate for covering the open entry of the case; negative electrode terminals, in equal numbers as the electrode assemblies, provided on the cap plate and electrically connected to the uncoated negative electrode regions; and positive electrode terminals provided on the side of the case opposite to the negative electrode terminals, and electrically connected to the uncoated positive electrode regions.
Resumen de: WO2025200436A1
A cathode active material, a positive electrode, a sodium-ion battery, a battery assembly, and an electric system. The cathode active material satisfies: the cross-sectional filling rate of the cathode active material ranging from 75% to 99%; the tap density of the cathode active material ranging from 1.5 g/cm3 to 2.5 g/cm3; and the value of the particle size distribution spread K of the cathode active material ranging from 0.9 to 3.0, wherein K＝(D90-D10)/D50. By means of making the tap density, cross-sectional filling rate and particle distribution range of the cathode active material be within the above-mentioned ranges, the compaction density of a positive electrode can be improved, thereby increasing the volumetric energy density of a battery.
Nº publicación: WO2025200273A1 02/10/2025
Solicitante:
EVE ENERGY CO LTD [CN]
\u60E0\u5DDE\u4EBF\u7EAC\u9502\u80FD\u80A1\u4EFD\u6709\u9650\u516C\u53F8
Resumen de: WO2025200273A1
Disclosed in the present application is a liquid cooling system with direct cooling connection, comprising: a liquid cooling plate assembly, which comprises two or more liquid cooling plate branches, each of the liquid cooling plate branches being provided with a quick plug-in socket; and a direct-cooling type liquid cooling pipeline, which comprises an L-shaped quick plug-in connector, at least one T-shaped quick plug-in connector and a hydraulic connector which are sequentially connected by means of a communication pipe, the quick plug-in socket of each of the liquid cooling plate branches being plugged with the L-shaped quick plug-in connector or the T-shaped quick plug-in connector so as to connect the liquid cooling plate branch to the direct-cooling type liquid cooling pipeline.
BOPI
Sede Electrónica
