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1103
resultados
Última actualización
21/09/2025 [07:07:00]
Resultados 1025 a 1050 de 1103
Resumen de: EP4614174A1
Embodiments of the present disclosure provide a short circuit early-warning method and apparatus for an energy storage battery. The method includes: clustering analysis is performed on a U-Absolute Change (UAC) of a battery cell, and a U-Baseline Change (UBC) of the battery cell is calculated according to the UAC of each clustering center; a training set is constructed according to the UBC, and the training set is partitioned into a plurality of training subsets using a locality-sensitive hashing table; an early-warning neural network model is respectively trained according to the plurality of training subsets, and an early-warning threshold of each training subset is respectively calculated; and short circuit early-warning is performed on a battery cell according to the early-warning neural network model and the early-warning threshold and in conjunction with battery cell state data at the current moment.
Resumen de: EP4614604A1
Provided are a positive electrode active material for a sodium secondary battery including: a sodium manganese-based oxide which includes at least sodium (Na), nickel (Ni), manganese (Mn), and a doping metal (M<sub>D</sub>) and has a manganese content of 55 mol% or more in all metals other than sodium, wherein the sodium manganese-based oxide is a secondary particle formed by agglomeration of at least one primary particle, and the primary particles have an aspect ratio of 1:1 to 1:2.5, a method for producing a positive electrode active material, and a positive electrode for a sodium secondary battery and a sodium secondary battery including the positive electrode active material.
Resumen de: EP4614615A1
A cathode active material of the present invention comprises a lithium nickel-based composite oxide comprising secondary particles formed by the aggregation of primary particles, wherein some cations and some anions in the lithium nickel-based composite oxide are replaced by a cation M' and a fluoride anion (F<sup>-</sup>), respectively, which are contained in a fluorine-based compound, and the average Ni occupancy in the Li 3a site, obtained through Rietveld refinement using X-ray diffraction of the secondary particles, is 1.1-1.5%.
Resumen de: EP4614532A1
A subject is to provide a method for manufacturing a solid electrolyte material having an α-Li3PS4 phase. The subject is addressed by a method for manufacturing a solid electrolyte material having the α-Li3PS4 phase, comprising heating a Li ion conductive sulfide material to a temperature within a range from 230°C to 350°C, the Li ion conductive sulfide material containing Li, P and S but free of F and Cl and having no α-Li3PS4 phase, wherein a temperature increase rate at 200°C is 100°C/min or more.
Resumen de: EP4614624A1
A battery including: a negative electrode having a negative electrode active material layer; and a solid electrolyte layer that is in contact with the negative electrode active material layer, in which the negative electrode active material layer contains a negative electrode active material that, in a case where an alkali metal is used as a counter electrode and 0.1 V or higher is applied, occludes or releases ions of the alkali metal, and any one or both of the negative electrode active material layer and the solid electrolyte layer contain a polymer having an ability to preferentially conduct metal ions.
Resumen de: EP4614646A1
Provided is a solid electrolyte laminate capable of realizing a solid-state secondary battery capable of suppressing a short circuit during charging with a large amount of current and/or suppressing a decrease of a battery capacity even when a charge and discharge cycle is repeatedly performed. A solid electrolyte laminate 4 in which three or more electrolyte layers containing a solid electrolyte are laminated, comprising a first electrolyte layer 1 having a support; and a second electrolyte layer 2 and a third electrolyte layer 3 disposed so as to sandwich the first electrolyte layer 1 and having no support, in which a film thickness (T2) of the second electrolyte layer 2 is 1.5 to 5 times as large as a film thickness (T3) of the third electrolyte layer 3.
Resumen de: CN120153485A
The invention relates to a method for manufacturing an electrochemical cell (60) for a polymer matrix battery, the method comprising:-covering an anode current collector film (81) with an anode mixture (82) comprising an anode active material dispersed in a first crosslinkable liquid electrolyte comprising a first crosslinkable composition to form an anode electrode (83); covering the cathode current collector film (91) with a cathode mixture (92) comprising a cathode active material dispersed in a second crosslinkable liquid electrolyte comprising a second crosslinkable composition to form a cathode electrode (93); -stacking an anode electrode and a cathode electrode, in which a porous, electrically insulating separation membrane (71) impregnated with a third crosslinkable liquid or semi-liquid electrolyte is positioned between the anode electrode and the cathode electrode, thereby forming a stack (6); and-exposing the stack to at least one electron beam such that the first crosslinkable liquid electrolyte and the second crosslinkable liquid electrolyte cure as a whole, thereby forming the electrochemical cell.
Resumen de: CN120051871A
The present invention relates to a method for preparing a composite particle comprising depositing a plurality of electroactive material domains in pores of a porous particle wherein the porous particle comprises micropores and mesopores and has a D1 particle size of at least 0.5 m and a D50 particle size in the range of 1 to 20 m.
Resumen de: CN120091970A
The invention relates to a method for preparing composite particles. The method comprises the following steps: providing a plurality of porous particles, wherein the porous particles comprise micropores and/or mesopores; contacting the porous particle with a silicon-containing precursor at a temperature effective to cause deposition of a plurality of silicon domains in pores of the porous particle; and heat treating the particles at a temperature of at least 400 DEG C and in the presence of an inert gas.
Resumen de: EP4614617A1
The present application provides a positive electrode active material, a preparation method therefor, a secondary battery, and an electrical apparatus. The chemical formula of the positive electrode active material is LiaNixCoyM1-x-yO2, where M comprises one or more of Mn, Al, B, Zr, Sr, Y, Sb, W, Ti, Mg and Nb, 0.55≤x≤1.0, 0≤y≤0.45, 0.8≤a≤1.2, the positive electrode active material being a hollow structure, and the inner diameter d1 of the hollow structure being 0.3 µm-5 µm.
Resumen de: EP4614596A1
This application provides a positive electrode material, a positive electrode plate, a secondary battery, and an electric apparatus. The positive electrode material includes a phosphate-based positive electrode material and a ternary positive electrode material, and the positive electrode material satisfies the following relational expression 1:0.032
Resumen de: EP4614687A1
The present invention relates to a pouch cell that can prevent the generation of cracks in the bridge portion of a pouch due to gases generated during charging and discharging, and a method for manufacturing the same.The method for manufacturing a pouch cell comprises (a) a step of molding a pouch film comprising a metal layer so as to form a pair of cup portions capable of accommodating an electrode assembly at both sides of a bridge portion in the pouch film, wherein in step (a), the pouch film may be molded so as to satisfy an equation of T/D>0.006, where a thickness of the metal layer in the bridge portion is T mm, and a depth of the cup portion is D mm after molding.
Resumen de: EP4614649A1
The present disclosure provides a lithium ion secondary battery excellent in cycle properties which are important for secondary batteries to be installed in vehicles such as electric vehicles, and provides an electrolytic solution that can be used for producing such a lithium ion secondary battery. An electrolytic solution for a lithium ion secondary battery is an electrolytic solution for a lithium ion secondary battery in which an electrolyte is dissolved in a nonaqueous solvent, and contains cyanomethyl formate and vinylene carbonate. The lithium ion secondary battery includes a positive electrode, a negative electrode, a separator, and the electrolytic solution for a lithium ion secondary battery.
Resumen de: EP4614656A1
Provided are an all-solid state secondary battery including a battery element member including one or more battery units each including at least a negative electrode active material layer, a solid electrolyte layer, and a positive electrode active material layer laminated in this order, in which an insulating coating body that coats at least a side surface of the battery element member is provided at an end part of the battery element member, and the insulating coating body consists of a mixture of a resin material that melts in a temperature range of 300°C or lower and insulating inorganic particles that do not melt at 350°C; as well as a manufacturing method of an all-solid state secondary battery including a step of disposing a mixture of a resin material that melts in a temperature range of 300°C or lower and insulating inorganic particles that do not melt at 350°C, at an end part of the battery element member, and a step of pressurizing the mixture against the battery element member in an inward direction while heating the mixture at a temperature at which the resin material melts.
Resumen de: EP4614668A2
An electrolyte for a lithium-ion battery includes a primary lithium salt and an organic compound composition. In some designs, the organic compound composition includes (1) fluoroethylene carbonate (FEC), (2) vinylene carbonate (VC), (3) at least one ester (ES), and (4) a nitrile additive composition (NAC) which includes at least one nitrile compound. In some designs, a mole fraction of the NAC in the electrolyte is in a range of approximately 0.1 mol. % to approximately 2.0 mol. %. In some designs, a mole fraction of the at least one ES in the electrolyte is at least approximately 35 mol. %.
Resumen de: EP4614644A2
Provided is an all-solid-state secondary battery mixture having good properties, a secondary battery electrode mixture sheet containing the all-solid-state secondary battery mixture, and a secondary battery using the all-solid-state secondary battery sheet. Also provided is a method for producing an all-solid-state secondary battery sheet containing a polytetrafluoroethylene resin having a fine fiber structure. The all-solid-state secondary battery mixture includes a solid-state electrolyte and a binder. The binder is a polytetrafluoroethylene resin, and the polytetrafluoroethylene resin has a fibrous structure with a fibril diameter (median value) of 70 nm or less. In addition, the all-solid-state secondary battery mixture sheet contains that all-solid-state secondary battery mixture.
Resumen de: EP4614667A2
The present disclosure relates to a solid-state battery. The solid-state battery is provided with a solid electrolyte membrane-protecting member, which compensates for a difference in area between an electrode and a solid electrolyte membrane, and thus the end portion of the solid electrolyte membrane is supported by the solid electrolyte membrane-protecting member. Therefore, even when the solid electrolyte membrane has low mechanical strength due to the use of a polymeric solid electrolyte, or the like, or has low shape stability due to high flexibility, the end portion of the solid electrolyte membrane may be supported by the solid electrolyte membrane-protecting member. As a result, it is possible to prevent damages of the end portion of the solid electrolyte membrane. The present disclosure also relates to a method for manufacturing the solid-state battery. According to the method, the solid electrolyte membrane-protecting member may be disposed in the portion corresponding to a difference in area between the electrode and the solid electrolyte membrane through a simple process. Therefore, it is possible to provide high convenience in processing.
Resumen de: EP4614626A2
Provided is a secondary battery electrode mixture having good properties, a secondary battery electrode mixture sheet containing the electrode mixture, and a secondary battery using the secondary battery electrode mixture sheet. Also provided is a method for producing an electrode mixture sheet containing a polytetrafluoroethylene resin having a fine fiber structure. The secondary battery electrode mixture includes an electrode active material and a binder. The binder is a polytetrafluoroethylene resin, and the polytetrafluoroethylene resin has a fibrous structure with a fibril diameter (median value) of 70 nm or less. In addition, the secondary battery electrode mixture sheet contains that electrode mixture.
Resumen de: EP4614643A2
A positive electrode active material having high capacity and excellent cycle performance is provided. The positive electrode active material has a small difference in a crystal structure between the charged state and the discharged state. For example, the crystal structure and volume of the positive electrode active material, which has a layered rock-salt crystal structure in the discharged state and a pseudo-spinel crystal structure in the charged state at a high voltage of approximately 4.6 V, are less likely to be changed by charge and discharge as compared with those of a known positive electrode active material.
Resumen de: EP4614647A2
Compositions comprising fused aromatic systems and associated electrodes, electrochemical cells, and charge storage devices are generally described.
Resumen de: EP4614601A2
The present invention relates to a negative electrode and a secondary battery including the same, the negative electrode including a negative electrode collector, a first negative electrode active material layer disposed on the negative electrode collector, and a second negative electrode active material layer disposed on the first negative electrode active material layer, wherein the second negative electrode active material layer includes a second negative electrode active material and a second conductive agent, the second negative electrode active material includes a silicon-based active material, and the second conductive agent includes carbon nanotube structures in which single-walled carbon nanotube units are bonded together.
Resumen de: EP4614599A1
The present disclosure relates to the technical field of lithium-ion batteries, and particularly, to a multi-element cathode material, a preparation method thereof, a positive electrode plate, and a lithium-ion battery. The multi-electrode material is composed of secondary particles agglomerated by primary particles. A ratio of a total cross-sectional area of the primary particles with more than 5 grain boundaries to a cross-sectional area of the secondary particles is greater than or equal to 3:4. A porosity on a cross-section of the secondary particles is less than or equal to 2%. A grain boundary is a contour line of an interface between the primary particles with the same structure but different orientations on the cross-section of the secondary particles and a length of the grain boundary is greater than or equal to 0.1 µm. The internal crystal grains of the multi-element cathode material provided by the present disclosure are arranged in an irregular, non-radial, and disordered manner, endowing the multi-element cathode material with a higher powder pallet density and improved processability. Meanwhile, the positive electrode plate including the multi-element cathode material can easily withstand a higher rolling pressure and is less prone to fracture.
Resumen de: EP4614540A2
An energy storage apparatus suitable for mounting on a printed circuit board using a solder reflow process is disclosed. In some embodiments, the apparatus includes: a sealed housing body (e.g., a lower body with a lid attached thereto) including a positive internal contact and a negative internal contact (e.g., metallic contact pads) disposed within the body and each respectively in electrical communication with a positive external contact and a negative external contact. Each of the external contacts provide electrical communication to the exterior of the body, and may be disposed on an external surface of the body. An electric double layer capacitor (EDLC) (also referred to herein as an "ultracapacitor" or "supercapacitor") energy storage cell is disposed within a cavity in the body including a stack of alternating electrode layers and electrically insulating separator layers. An electrolyte is disposed within the cavity and wets the electrode layers. A positive lead electrically connects a first group of one or more of the electrode layers to the positive internal contact; and a negative lead electrically connects a second group of one or more of the electrode layers to the negative internal contact.
Resumen de: GB2639121A
A bipolar current collector 110 of a zinc bromine static battery (ZBSB) apparatus 100 may comprise a first electrically conductive layer 110A which may comprise a polyethylene based polymer and an electrically conductive agent, in contact with a cathode layer of the apparatus; and a second electrically conductive layer 110B attached to the first, which may comprise the polyethylene based polymer and graphite; wherein the apparatus is independent of an anode and wherein the second conductive layer is configured to dynamically operate as an anode in operation. A ZBSB apparatus containing a first cell 102A may comprise a first cathode layer 104A, a second cell 102B which may comprise a second cathode layer (Fig. 1A, 104B) and the current collector. A method of preparation of the current collector may comprise adding an electrically conductive agent on a polyethylene based polymer substrate, adding graphite on a second polyethylene based polymer substrate, and joining the two substrates.
Nº publicación: EP4614705A2 10/09/2025
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Resumen de: EP4614705A2
The present invention relates to a multi-battery pack (1000, 2000) including a plurality of stacked battery packs (100) and a plurality of long bolts (200) configured to couple the plurality of battery packs to each other and to fix the plurality of battery packs to a device, wherein each of the battery packs includes a plurality of battery cells and a case configured to receive the plurality of battery cells therein, the case includes a case frame defining a space configured to receive the battery cells therein, the case frame being provided at an outside thereof with a plurality of through-holes through which the long bolts (200) are inserted, a lower cover coupled to a lower part of the case frame, and an upper cover (110) coupled to an upper part of the case frame, and the upper cover (110) includes a circular first fastening hole (111) and a second fastening hole (112) having one side open in a C-shape, the first fastening hole (111) and the second fastening hole (112) being configured to allow the long bolts (200) to be fastened therethrough.
BOPI
Sede Electrónica
