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1482
resultados
Última actualización
11/09/2025 [07:18:00]
Resultados 1275 a 1300 de 1482
Resumen de: WO2025179153A1
A nonaqueous electrolyte solution for an energy storage device is described. The solution includes i) an aprotic organic solvent system; ii) an alkali metal salt; and iii) at least one halogenated phosphorus-based flame retardant additive compound. The halogenated phosphorus-based flame retardant increases the flame retardancy of the nonaqueous electrolyte solution without appreciably impacting the electrochemical performance of the nonaqueous electrolyte solution. Methods and processes for making such nonaqueous electrolyte solutions are provided. Electrical energy storage devices with these enhanced properties, including enhanced flame retardancy, are also provided.
Resumen de: WO2025178830A1
A composition useful from making cathodes for use in lithium ion rechargeable batteries is comprised of an alloy of a lithium borate and a lithium metal oxide, wherein the metal is one or more of Co, Mn and Ni. The alloy may have other lithium salts such as lithium sulfate and lithium phosphate. The alloys may be useful in lithium ion batteries having solid electrolytes.
Resumen de: WO2025178995A1
The present disclosure relates to a method for producing a silicon microparticle (SiMP) composite anode material for lithium-ion batteries. The method comprises providing dispersions of SiMPs and graphene oxide (GO) in tetrahydrofuran, mixing the dispersions, injecting the combined dispersion into n-hexane to form a wrapping structure via aggregation and precipitation of GO and SiMP, laser scribing the resulting SiMP/GO film to reduce the GO to laser-scribed graphene (LSG) and simultaneously forming silicon oxide (SiOx) and silicon carbide (SiC) protection layers on the SiMPs to alleviate severe volume change, and removing the n-hexane by evaporation through thermal treatment to obtain the SiMP/LSG composite anode material. This method significantly improves the cycling performance of SiMPs, effectively doubling the cycle life of batteries compared with simple physical mixing methods, thus providing a scalable and efficient solution to produce high-performing SiMP composite anode materials in lithium-ion batteries.
Resumen de: WO2025178806A1
A portable energy system configured for use with an energy management system is provided and comprises a controller operably connected to a battery of the energy management system and a grid and configured to control a cycling period of the battery for charging the battery during internal tare consumption and control energy import from the grid to the battery to initiate a cool down process for lowering a temperature of the battery so that the battery can charge up faster.
Resumen de: WO2025178418A1
The present invention relates to a cathode active material, a cathode and lithium secondary battery comprising same, and a method for evaluating the quality of a lithium secondary battery, and provides a cathode active material, and a cathode and a lithium secondary battery, both comprising same, wherein the cathode active material comprises a lithium composite transition metal oxide and has a ratio of Gaussian Lorentzian full width at half maximum (Strain L/G) of 1.6 or less as defined by Mathematical Formula 1 described in the present specification in an XRD peak pattern measured through XRD analysis. Also provided is a method for evaluating the quality of a lithium secondary battery comprising a cathode including the lithium composite transition metal oxide, an anode, and a separator disposed between the anode and the cathode, the method comprising the steps of: calculating a ratio of Gaussian Lorentzian full width at half maximum (Strain L/G) as defined by mathematical formula 1 described in the present specification in an XRD peak pattern of the cathode active material; and determining the battery as acceptable if the ratio of Gaussian Lorentzian full width at half maximum (Strain L/G) is 1.6 or less or as defective if the ratio exceeds 1.6.
Resumen de: WO2025178362A1
Provided is a structure of a battery pack, the battery pack comprising: a battery module provided with a module frame; a pack frame provided with a bottom plate on which the battery module is mounted; and a thermal resin interposed between a bottom plate of the battery module and the bottom plate of the pack frame, wherein hole- or recess-shaped receiving portions are provided in a bottom plate of the module frame, and the thermal resin has extending portions extending upward so as to be filled in anchor portions.
Resumen de: WO2025178554A1
Embodiments herein disclose methods and systems for identifying bunching of vehicles at a batteiy charging and swapping station in a live manner and addressing the bunching of vehicles by taking necessary actions through various solutions.
Resumen de: WO2025178419A1
The present invention relates to a method for environmentally-friendly and effective recovery of a positive electrode material from black powder, the method comprising: a dissolution step of mixing black powder and a basic solution to dissolve a current collector component; a solid-liquid separation step of removing the solvent in which the current collector component is dissolved; and a drying step of drying the separated solid component.
Resumen de: WO2025178390A1
The present invention relates to a method for recovering high-purity iron from waste lithium iron phosphate. Through a first step of heat-treating a crushed material of waste lithium iron phosphate (LiFePO4, LFP) in an oxygen atmosphere; a second step of recovering FeO-containing slag from a melt produced by adding a flux to and heat-treating, in an oxygen-free atmosphere, the crushed material of the waste lithium iron phosphate that has undergone the first step; a third step of recovering a melt produced by adding a reducing agent to and heat-treating, in an inert atmosphere, the FeO-containing slag recovered in the second step; a fourth step of injecting oxygen gas into the melt recovered in the third step; and a fifth step of adding FeS2 to and heat-treating, in an inert atmosphere, the melt that has undergone the fourth step, high-purity iron metal from which copper and phosphorus have been removed may be recovered.
Resumen de: WO2025178470A1
A method of manufacturing a solid-state battery device is provided. The method comprises: continuously supplying a first composite sheet that includes a cathode layer and a solid electrolyte layer formed on the cathode layer; continuously supplying an aluminum-containing sheet onto the first composite sheet so that the aluminum-containing sheet is positioned on the solid electrolyte layer of the first composite sheet; continuously roll-bonding the aluminum-containing sheet and the first composite sheet in order to provide a second composite sheet that includes the cathode layer; continuously supplying, onto the second composite sheet, a third composite sheet that includes a lithium-containing layer and a conductive layer; and continuously roll-bonding the second composite sheet and the third composite sheet so that the lithium-containing layer and the aluminum-containing layer are compressed to form a prelithiated anode.
Resumen de: EP4607625A1
A bipolar stacked battery that prevents air from becoming trapped during formation of the bipolar stacked battery has a plurality of stacked battery cells. An electrically and ionically insulating frame is formed between each of the plurality of stacked battery cells.
Resumen de: US2025264533A1
A method of verifying battery integrity includes: collecting first data associated with electrochemical characteristics of a cell included in a battery; generating a first hash value associated with the cell based on the first data; and monitoring the battery based on the first hash value.
Resumen de: US2025266489A1
A rechargeable battery of the present disclosure includes an electrode assembly comprising a plurality of electrodes stacked together and having a separator disposed between respective ones of the plurality of electrodes, and an adhesive member disposed at at least two of corner parts of the electrode assembly and attached to cover an upper surface, side surface, and lower surface of the electrode assembly.
Resumen de: JP2024102029A
To provide a TFE polymer composition, etc. for a binder for an electrochemical device that can suppress gas generation inside an electrochemical device cell and degradation of electrochemical device properties and also improve strength of a mixture sheet.SOLUTION: A TFE polymer composition used as a binder for an electrochemical device contains a TFE polymer and at least one compound selected from a group consisting of a compound shown in general formulae (1) and (2), and is substantially free of water. General formula (1):(H-(CF2)m-1-COO)pM1 (in the formula, m is 4 to 20, M1 is H, a metal atom, NR54 (R5 can be the same or different, H or an organic group having 1 to 10 carbon atoms) etc., p is 1 or 2) General formula (2):(H-(CF2)n-SO3)qM2 (where n is 4 to 20, M2 is H, metal atom, NR54 (R5 is the same as above) etc., q is 1 or 2)SELECTED DRAWING: Figure 1
Resumen de: WO2024141337A1
The invention relates to a method for manufacturing an aqueous slurry comprising hydroxide or oxyhydroxide particles of one or more elements, wherein the one or more elements include at least one of Ni, Co and Mn. The method comprises: supplying a flow of a metal salt solution comprising the one or more elements to a reactor vessel for a time period; during the time period, mixing the metal salt solution with an aqueous solution comprising one or more alkali hydroxides, thereby precipitating the hydroxide of the one or more elements and forming the aqueous slurry comprising the hydroxide or oxyhydroxide particles of the one or more elements; and wherein the metal salt solution has a flow rate expressed as a volume per unit of time, wherein the metal salt solution has a concentration of the one or more elements expressed as mol per unit of volume, and wherein the mathematical product of the flow rate and the concentration increases continuously during the time period.
Resumen de: EP4607675A1
Embodiments of the present application provide a battery cell, a battery, and an electrical device, which belong to the technical field of batteries. The battery cell includes a shell which includes a pressure relief component, in which, the pressure relief component is provided with a groove portion, is configured to be capable of cracking along the groove portion so as to release the pressure inside the battery cell, and has a fracture initiation position. The groove portion includes a first groove section, a second groove section and a third groove section, in which, the first groove section and the third groove section are oppositely arranged, and the second groove section is connected to the first groove section and the third groove section. The fracture initiation positions are formed at the first groove section and/or the third groove section. No fracture initiation position is formed at the second groove section, such that the pressure relief component has high fatigue resistance at the area of the second groove section, thereby reducing the possibility of the pressure relief component cracking at the middle area of the second groove section during the normal use of the battery cell, thus improving the long-term reliability of the pressure relief component, and prolonging the service life of the battery cell.
Resumen de: EP4607676A1
The present application provides a battery cell, a battery, and an electrical device, and relates to the field of batteries. The battery cell includes a shell, the shell has a wall portion, the wall portion includes a weak portion, and the weak portion is configured to be destroyed when the battery cell releases internal pressure. An outer surface of the wall portion has a center point. A maximum distance between a projection of the weak portion on the outer surface of the wall portion and the center point is a, the minimum radial dimension of the outer surface of the wall portion is A, and a and A satisfy: a≤0.4A. The radial direction refers to a direction passing through the center point. By setting a≤0.4A, the weak portion is arranged at a region, with a relatively low stiffness, of the wall portion. When the battery cell releases the internal pressure, the region undergoes a large deformation under the action of gas, and therefore the weak portion arranged at the region is easily damaged. Under the condition of the same fracture initiation pressure, the thickness of the weak portion arranged at the region can be larger. When the battery cell is normally used, the weak portion has a stronger ability to resist external impact, so as to reduce the risk of the weak portion being damaged prematurely.
Resumen de: EP4607613A1
Provided in the present disclosure are a high-nickel cobalt-free positive electrode material with double reduction of residual alkali and a preparation method thereof. A chemical expression of the high-nickel cobalt-free positive electrode material is LixNiyMn1-yAzO2, where 0.75
Resumen de: EP4607653A1
The present application provides a battery and an electric device, relating to the technical field of batteries. The battery includes a plurality of battery cells, wherein the plurality of battery cells are stacked in a first direction, the plurality of battery cells include two first battery cells located at two ends in the first direction, two adjacent battery cells are provided therebetween with at least one first thermal management component, and one side of at least one of the first battery cells away from the first thermal management component in the first direction is provided with at least one second thermal management component, where in the first direction, the thickness of the at least one second thermal management component is less than the that of the at least one first thermal management component, so that the amount by which the at least one second thermal management component may be compressed in the first direction matches the amount of expansion of the first battery cell in the direction away from the first thermal management component, thereby meeting the expansion requirement of the first battery cell in the direction away from the first thermal management component, and reducing the space occupied by the second thermal management component in the first direction, which is beneficial to improve the energy density of the battery.
Resumen de: EP4607658A1
A cap plate insulator (57, 100) and a secondary battery including the same are provided, with cap plate insulator (57, 100) being positioned between a cap plate (61) and an electrode assembly (40) and structured to prevent an electrolyte injected through the electrolyte injection port (64) from directly spraying onto the electrode assembly (40). To this end, there is provided an insulator (57, 100) between the electrode assembly (40) and the cap plate (61), with the cap plate (61) including a barrier (115) for changing a path of an electrolyte injected through the electrolyte injection port (64) and means for guiding the electrolyte into the electrode assembly (40)..
Resumen de: EP4607679A1
Provided in the present application are a battery cell (10), a battery (100), and an electrical device. The electrical device comprises a battery (100). The battery (100) comprises a battery cell (10). The battery cell (10) comprises an outer housing (12), an electrode assembly (11), and an insulating member (13). The end of the outer housing (12) in the first direction (Z) is provided with a pressure relief mechanism (123). The insulating member (13) is provided in the outer housing (12) and is located at the end of the electrode assembly (11) near the pressure relief mechanism (123). In a direction intersecting the first direction (Z), a pressure relief gap (101) is provided between a side portion of the insulating member (13) and the outer housing (12). A pressure relief recess (102) in communication with the pressure relief gap (101) is disposed on the side portion of the insulating member (13). A pressure relief channel (103) that is in communication with the pressure relief recess (102) and disposed opposite to the pressure relief mechanism (123) is also provided in the outer housing (12). In this way, the problem of damage or even explosion of the electrode assembly (11) due to the pressure of the electrode assembly (11) not being released in time can be solved.
Resumen de: EP4607677A1
This application provides a battery cell, a battery, and an electric apparatus, and pertains to the field of battery technologies. The battery cell includes an outer shell, the outer shell has a wall portion, and along a thickness direction of the wall portion, the wall portion has a first surface and a second surface opposite to each other. The first surface is provided with a first groove, the second surface is provided with a second groove at a position corresponding to the first groove, a bottom surface of the first groove is provided with a scored groove, and the wall portion is capable of rupturing along the scored groove during pressure relief of the battery cell. This battery cell, first, can reduce the depth required to provide the scored groove on the wall portion, helping lower the manufacturing difficulty of the scored groove and the requirements on production devices, thereby reducing manufacturing costs, and can reduce the forming force exerted on the wall portion in processing the scored groove, helping mitigate the risk of cracks in the wall portion. Second, it can improve the morphology of a flow material during the formation of the scored groove, facilitating the flow of the material generated during the formation of the scored groove, thereby enhancing the structural consistency of the scored groove.
Resumen de: EP4607616A1
A positive electrode active material, a positive electrode, and a rechargeable lithium battery including the positive electrode are disclosed. The positive electrode active material includes a first positive electrode active material including a core particle in a form of secondary particles including a layered lithium nickel-manganese-based composite oxide and provided by agglomerating a plurality of primary particles and a second positive electrode active material including a core particle including a layered lithium nickel-manganese-based composite oxide and in a form of single particles. The first positive electrode active material and the second positive electrode active material each independently further include an aluminium coating layer on the surface of the core particle, and an average particle diameter (D<sub>50</sub>) of the second positive electrode active material is smaller than that of the first positive electrode active material.
Resumen de: EP4606481A1
A grinding apparatus of the present disclosure includes a body member including an inlet through which raw material is introduced; a fixing member installed inside the body member; a rotation member installed inside the body member and positioned spaced apart from the fixing member; and a driving member installed outside of the body member and configured to rotate the rotation member, wherein the rotation member includes a disk coupled to the driving member; a first pattern inserted to a certain depth on the disk and including a plurality of first lines positioned parallel to each other; a second pattern inserted at a certain depth on the disk and including a plurality of second lines arranged to intersect the plurality of first lines and positioned parallel to each other; and a grinding portion that is positioned between the plurality of first lines and the plurality of second lines, and protrudes to the outside to grind raw material.
Nº publicación: EP4607680A1 27/08/2025
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Resumen de: EP4607680A1
Disclosed herein relates to a battery pack for accommodating a plurality of cell assemblies, including: a pack case where the cell assembly is seated; an upper case coupled to the pack case to cover an upper part of a cell assembly seated inside the pack case; and at least one spark prevention member comprising a plurality of mesh holes, and provided at a lower end of the upper case, wherein the pack case includes at least one discharge hole communicating with the interior space in a side part, and the spark prevention member is provided at a location corresponding to a discharge hole of the pack case.
BOPI
Sede Electrónica
