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1336
resultados
Última actualización
14/09/2025 [07:14:00]
Resultados 1200 a 1225 de 1336
Resumen de: EP4611158A1
A battery pack may include a plurality of battery cells stacked in a first direction, and busbars extending in the first direction and configured to electrically connect at least two adjacent battery cells among the plurality of battery cells. Each of the at least two adjacent battery cells among the plurality of battery cells may include an electrode assembly, a cover surrounding the electrode assembly, and a cell lead protruding from a side of the cover in a second direction. Further, the cell lead may include a first part disposed closer to the cover than a second part. In addition, a maximum dimension of the second part may be greater than a maximum dimension of the first part in the first direction, and each of the busbars may extend in the first direction to electrically connect adjacent second parts to each other.
Resumen de: EP4611163A1
A battery pack can include a plurality of battery cells stacked in a first direction, and a pack case configured to accommodate the plurality of battery cells in an inner space therein. In addition, each of at least a pair of adjacent battery cells among the plurality of battery cells can include an electrode assembly, a cover surrounding the electrode assembly, and a cell lead protruding from a side of the cover in a second direction. Further, the cell lead can include a first part disposed closer to the cover than a second part. Additionally, a maximum dimension of the second part can be greater than a maximum dimension of the first part in the first direction. Furthermore, the second part can include a plane perpendicular to a third direction, and the first direction, the second direction, and the third direction that can be perpendicular to one another.
Resumen de: EP4611075A1
Provided is a conductive slurry for a secondary battery electrode that reduces the viscosity of a conductive slurry while simultaneously reducing the surface resistance of a film made from the conductive slurry. One embodiment of the present disclosure provides a conductive slurry for a secondary battery electrode comprising: a conductive material; and a dispersant, wherein the dispersant comprises a cellulose-based compound and an organic acid salt.
Resumen de: WO2024091574A1
A battery architecture based on the inclusion of a solid polymer electrolyte (SPE) as a safer alternative to that of liquid electrolytes. The construction of the battery enables the battery device to store energy not only electrochemically, but also electrostatically through an electric double-layer capacitance formed by the charge separation on the interface between the electrolyte and electrodes. This architecture allows the storage of additional energy, thus exceeding the theoretical specific capacity of a conventional Li metal battery. An interfacial therapy was modified to improve Li metal stability, and to enhance mass transport at the electrolyte/anode interface.
Resumen de: US2024146089A1
A storage system configured for use with an energy management system is provided herein and comprises a rechargeable battery, a grid detection circuit operably connected to the rechargeable battery such that when an AC power source is not detected by the grid detection circuit and a voltage at the rechargeable battery falls below a threshold voltage, the grid detection circuit places the rechargeable battery into a sleep mode, and a switch operably connected to the grid detection circuit and configured to override the grid detection circuit so that rechargeable battery exits the sleep mode until a voltage at the rechargeable battery is equal to or greater than a predetermined voltage.
Resumen de: WO2024091381A1
An alkali metal-containing film stack for energy storage devices is provided. The alkali metal-containing film stack can be a lithium film stack having a flexible support layer and a release layer disposed over the flexible support layer capable of separating from the flexible support layer. The release layer includes one or more nanosheets, such as two-dimensional materials. An alkali metal-containing layer, such as a lithium layer is disposed over the release layer.
Resumen de: EP4610294A1
The present invention relates to: a binder comprising a polyamide polymer containing a monomer unit including an aromatic ring; a positive electrode slurry comprising same; a positive electrode; and a secondary battery.
Resumen de: EP4611153A1
The present invention relates to a polymer composition, and a slurry composition, a separator and a secondary battery comprising same, the polymer composition comprising: a particle-type polymer comprising a carboxyl group or an alcohol group; and a chain-type polymer comprising a carboxyl group or an alcohol group (if the particle-type polymer comprises the carboxyl group, the chain-type polymer comprises the alcohol group and, if the particle-type polymer comprises the alcohol group, the chain-type polymer comprises the carboxyl group).
Resumen de: EP4611117A1
Disclosed is a material separation method for recycling a battery cell, the material separation method including: a disassembling operation of separating an electrode assembly from which a pouch has been removed from a battery cell into first electrode plates, second electrode plates, and a separator, in which the disassembling operation may include: a separator opening operation of opening the separator surrounding the electrode assembly; and a main disassembling operation of separating the first electrode plates and the second electrode plates from the electrode assembly in which the separator is opened.
Resumen de: CN120152927A
The invention relates to a device (5) for transporting and optionally stacking planar electrode elements (1), which is designed to transport the planar electrode elements individually in succession along a transport path (10). The apparatus has a distance increasing device (12) which is arranged along the transport path of the planar electrode elements, for example upstream of the stacking device (17), and is designed to increase the distance (a) between the planar electrode elements, in particular to a processing distance (A), by accelerating the planar electrode elements in order to handle individual planar electrode elements.
Resumen de: US2025256984A1
A positive electrode active material for lithium-ion rechargeable batteries comprises particles having Li, M′, and oxygen. M′ comprises Ni in a content x, wherein x≥80 at %, relative to M′; Co in a content y, wherein 0.01≤y≤20.0 at %, relative to M′; Mn in a content z, wherein 0≤z≤20.0 at %, relative to M′; Y in a content b, wherein 0.01≤b≤2.0 at %, relative to M′; Zr in a content c, wherein 0.01≤c≤2.0 at %, relative to M′; D in a content a, wherein 0≤ a≤5.0 at %, relative to M′. D is selected from B, Ba, Ca, Cr, Fe, Mg, Mo, Nb, S, Si, Sr, Ti, V, W, and Zn. The material comprises secondary particles, wherein each of the secondary particles consists of at least two primary particles and at most twenty primary particles.
Resumen de: EP4611053A1
A positive electrode sheet and a preparation method therefor, and a battery and an electric device. The positive electrode sheet comprises a positive electrode current collector and a positive electrode active material layer, which is arranged on at least one side surface of the positive electrode current collector and comprises a positive electrode active material, wherein the positive electrode active material comprises a sodium-containing positive electrode active material. The thickness of the positive electrode sheet satisfies Dmax/Dmin being 104.5%-300%. After the positive electrode sheet and a negative electrode sheet are assembled into a battery, the thickness of the positive electrode sheet is Dmax when the battery is at 0% SOC, and the thickness of the positive electrode sheet is Dmin when the battery is at 100% SOC. The negative electrode sheet comprises a negative electrode current collector. When the battery is at 100% SOC, at least one side surface of the negative electrode current collector is provided with a sodium metal layer.
Resumen de: EP4611094A1
Provided in the present application is a secondary battery. The secondary battery comprises: a negative electrode sheet and an electrolyte, wherein the negative electrode sheet comprises a silicon-carbon composite material having a three-dimensional network crosslinked pore structure; and the electrolyte comprises a cyclic carbonate compound represented by formula I. By means of the cooperation of the three-dimensional network crosslinked pore structure of the silicon-carbon composite material and the cyclic carbonate compound of the electrolyte, the volume effect of an active material during the charging and discharging process is inhibited, the direct current resistance and gas output of the battery are reduced, and the cycle capacity retention rate of the battery is improved.
Resumen de: EP4611062A1
The present application provides a secondary battery and an electrical apparatus. The secondary battery comprises: a negative pole piece and an electrolyte, the negative pole piece comprising a silicon-carbon composite material having a three-dimensional-network cross-linked pore structure; and the electrolyte comprising lithium fluorosulfonyl imide. The three-dimensional-network cross-linked pore structure of the silicon-carbon composite material acts in connect with the lithium fluorosulfonyl imide in the electrolyte to enhance the high-temperature cycle performance and the storage performance of the battery.
Resumen de: EP4611061A1
The present application provides a secondary battery (1). The secondary battery (1) comprises: a negative electrode sheet and an electrolyte, wherein the negative electrode sheet comprises a silicon-carbon composite material having a three-dimensional network crosslinked pore structure; and the electrolyte comprises dimethyl carbonate. By means of the cooperation of the three-dimensional network crosslinked pore structure of the silicon-carbon composite material and dimethyl carbonate in the electrolyte, the volume effect of an active material during a charging and discharging process is inhibited, the interface stability is improved, the internal resistance of the battery is reduced, and the cycle capacity retention rate and the charging and discharging performance at a high rate of the battery are improved.
Resumen de: EP4611143A1
The present invention provides a structure of a battery module including: a battery cell laminate formed by stacking a plurality of pouch-type battery cells; a frame having open front and rear ends, and accommodates the battery cell laminate; a pair of end plates covering the front and rear ends of the frame; and a flame retardant cover attached to a predetermined area of a surface of the frame, wherein the predetermined area is divided into a plurality of areas, the flame retardant cover includes a plurality of divided covers attached to cover the plurality of areas, respectively, and the frame includes: an upper surface having two or more divided covers attached thereto; and two side surfaces having two or more divided covers attached thereto, respectively.
Resumen de: EP4611167A1
Disclosed is an electrode assembly having a structure in which a stack including a first electrode, a second electrode, and a separator interposed therebetween is wound. The first electrode and the second electrode have an uncoated portion provided at a long side end and not coated with an active material and a coated portion coated with the active material, respectively. On a first surface of the first electrode and a second surface opposite to the first surface, a first insulation layer and a second insulation layer extending by a predetermined length from a region including a boundary between the coated portion and the uncoated portion toward an end of the uncoated portion are provided, respectively.
Resumen de: EP4611106A1
The present invention relates to an electrode assembly for a secondary battery, the electrode assembly having a shape in which an electrode stack, which includes: a positive electrode including a positive electrode current collector and a positive electrode active material layer disposed on at least one surface of the positive electrode current collector; a negative electrode including a negative electrode current collector and a negative electrode active material layer disposed on at least one surface of the negative electrode current collector; and a separator interposed between the positive electrode and the negative electrode, is wound, wherein an end, which faces a winding center, of both ends in a longitudinal direction of the negative electrode is a negative electrode non-coating portion on which the negative electrode active material layer is not disposed, and an end, which faces the winding center, of both ends in a longitudinal direction of the positive electrode is disposed with a ceramic-containing film member.
Resumen de: EP4611059A1
The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material capable of preventing and/or mitigating the degradation of electrochemical properties and lifetime of the positive electrode active material caused by lithium impurities and/or a washing process by removing lithium impurities through surface modification without a washing process for reducing the content of lithium impurities such as LiOH and Li<sub>2</sub>CO<sub>3</sub> remaining on the surface of the positive electrode active material, and a lithium secondary battery using a positive electrode including the positive electrode active material.
Resumen de: EP4611055A1
The present invention relates to an all solid-state battery, which comprises a cathode including a cathode active material layer containing a cathode active material, an anode including an anode catalyst layer containing an anode catalyst and Nb<sub>2</sub>O<sub>5</sub> and an electrolyte, wherein the anode catalyst layer contains Nb<sub>2</sub>O<sub>5</sub> at a content of 1 wt% to 30 wt% on the basis of a total of, 100 weight% of the anode catalyst layer and the ratio (N/P) of a capacity of the anode catalyst layer to that of the cathode is between 0.1 (inclusive) and 0.5 (exclusive).
Resumen de: EP4611052A1
The present invention relates to a negative electrode for an all-solid-state battery including same. This negative electrode for an all-solid-state battery includes a current collector and a negative electrode catalyst layer located on the current collector and including an amorphous carbon, metal and clay.
Resumen de: EP4611105A1
An object of the present disclosure is to provide a nonaqueous electrolytic solution and a clay-type lithium ion secondary battery using same, the nonaqueous electrolytic solution having both excellent battery safety when used at a high temperature, an important feature for secondary batteries to be installed in modern vehicles such as electric vehicles, and having excellent battery characteristics. The nonaqueous electrolytic solution of the present disclosure is a nonaqueous electrolytic solution including an electrolyte salt dissolved in a nonaqueous solvent, the nonaqueous solvent containing from 80 to 100 vol% in total of at least one selected from ethylene carbonate, propylene carbonate, and γ-butyrolactone, and the nonaqueous electrolytic solution further including a trifluoroacetic acid ester having an alcohol group with a carbon chain length of from 6 to 8.
Resumen de: CN120129661A
The present invention relates to a positive electrode active material for a lithium ion rechargeable battery, where the positive electrode active material comprises Li and transition metals such as Ni, optionally Co, optionally Mn and Nb, where the positive electrode active material is coated with B, and where the specific surface area of the positive electrode active material is higher than or equal to 0.50 m2/g and lower than or equal to 1.50 m2/g.
Resumen de: EP4611057A1
The present application discloses a lithium secondary battery and an electric device. The lithium secondary battery comprises a positive electrode sheet and a negative electrode sheet; a positive electrode active material layer comprises a positive electrode active material Li1+aM1bFe1-cAcP1-dEdO4 having a mass ratio of not less than 85 wt%; a negative electrode active material layer comprises graphite having a mass ratio of not less than 85 wt%; the surface density of the positive electrode active material layer located on a single side of the positive electrode sheet is CWc, with a unit of g/1540.25 mm2, and the reversible lithium capacity thereof is Dc, with a unit of mAh/1540.25 mm2; the reversible lithium capacity of the negative electrode active material layer on the side of the negative electrode sheet facing the positive electrode sheet is Da, with a unit of mAh/1540.25 mm2; the initial lithium-intercalation capacity of the negative electrode active material layer on the side of the negative electrode sheet facing away from the positive electrode sheet is Ca, with a unit of mAh/1540.25 mm2; the conductivity of an electrolyte in the lithium secondary battery at 25°C is ρ, with a unit of S/cm; the lithium secondary battery satisfies: Formula 1: 1.0337+0.37 × CWc - 7.79 × ρ ≤ K1 ≤ 1.07+0.93 × CWc - 2.9 × ρ ; and/or, Formula 2: 1.1485+0.43 × CWC - 9.2 × ρ = K2 ≤ 1.13+1.069×CWc - 1.7 × ρ ; wherein, (a).
Nº publicación: EP4611101A1 03/09/2025
Solicitante:
CONTEMPORARY AMPEREX TECHNOLOGY HONG KONG LTD [HK]
Contemporary Amperex Technology (Hong Kong) Limited
Resumen de: EP4611101A1
The present application provides an electrolyte, a secondary battery and an electrical apparatus. The electrolyte contains a sodium salt and metal ions having ionic radii greater than that of a sodium ion. The electrolyte can effectively inhibit sodium dendrites, helping to improve the cycle performance and the high-temperature storage performance of batteries.
BOPI
Sede Electrónica
