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1261
resultados
Última actualización
28/04/2025 [07:11:00]
Resultados 525 a 550 de 1261
Resumen de: EP4541771A1
Disclosed herein are lithium-cobalt-based composite oxide particles obtained by a solid-phase process and capable of reducing the weight and thickness of a positive electrode material when used as a positive electrode active material for non-aqueous lithium secondary batteries or all-solid-state batteries and a method for producing the same. The lithium-cobalt-based composite oxide particles are formed of a lithium-cobalt-based composite oxide having an average primary particle diameter of 0.50 µm or less and show a weight loss on heating at 850°C of 1.5 mass% or less.
Resumen de: EP4542714A1
Disclosed is an alkali metal ion conductor which behaves as a liquid at a low temperature. The alkali metal ion conductor of the present disclosure is an alkali metal ion conductor comprising a salt, wherein the salt comprises a first cation, a second cation, and a first anion, the first cation is a tetraalkylammonium ion having an alkyl chain length of 5 or more, the second cation is an alkali metal ion, and the first anion is at least one anion selected from the group consisting of a bromine ion, a chlorine ion, and a hydrogen sulfate ion.
Resumen de: US2024021798A1
Provided herein is a negative electrode or anode for an electrochemical cell having two or more layers. Each layer may include different concentrations of an anode active material to provide improved electrical and physical qualities as compared to a mono-layer anode.
Resumen de: WO2024014541A1
Provided is a method for recovering metals, which can produce a lithium hydroxide solution from a metal-containing solution and appropriately process the impurities separated at that time. The method for recovering metals from battery powder of lithium ion battery waste includes: an acid leaching step of leaching the metals in the battery powder with an acid to obtain a metal-containing solution containing lithium ions and other metal ions including manganese ions and/or aluminum ions; a metal separation step of separating the other metal ions from the metal-containing solution, the metal separation step comprising extraction of manganese ions and/or aluminum ions from the metal-containing solution into a solvent and, after the extraction, stripping of manganese ions and/or aluminum ions from the solvent into a stripping solution; and, after the metal separation step, an electrodialysis step of subjecting the metal-containing solution containing lithium ions and fluoride ions to electrodialysis using a bipolar membrane to obtain a lithium hydroxide solution and an acidic solution containing fluoride ions, wherein the acidic solution obtained in the electrodialysis step is used as at least part of the stripping solution in the metal separation step.
Resumen de: EP4542582A1
Disclosed is a technology which enables minimization of deterioration of charge/discharge characteristics when cracks occur in an electrolyte layer or electrode of a lithium-ion battery. The technology of the present disclosure includes a specific lithium-ion conductor in the electrolyte layer or electrode of the lithium-ion battery. The lithium-ion conductor of the disclosure contains a complex halide represented by LiGaX4 (where X is one or more halogens).
Resumen de: EP4542759A1
In a vehicle battery pack, for connecting a bus bar and a voltage detection terminal, laser welding having high reliability is possible.In order to realize this, the present invention has the following configuration. That is, there is provided a metal welded structure which is a welded structure including a first metal member (16), a second metal member (14) having a part overlapping with the first metal member (16), and a welded part (19) formed in the overlapping part, wherein the welded part (19) has a molten part formed by melting through the second metal member (14) in a thickness direction to the inside of the first metal member (16), when viewed in the overlapping direction, the welded part has a U-shape including a first linear part and a second linear part (20) extending from both sides of the first linear part in a longitudinal direction to respective ends, and the width D1 between two end points of the welded part (20) and the bead width W of the welded part (20) have a relationship of D1/W≥2.
Resumen de: EP4542719A1
The purpose of the present invention is to provide a secondary battery having a high energy density and excellent cycle characteristics, in which the secondary battery has a configuration making it possible to be assembled in a short time. The secondary battery of the present invention includes a laminate formed by winding a sheet having a negative electrode and separators disposed on both surfaces of the negative electrode so that the sheet is folded back a plurality of times; and a plurality of positive electrodes that are respectively disposed in each gap formed between the separators facing each other in the laminate.
Resumen de: EP4542663A1
According to one embodiment, a positive electrode is provided. The positive electrode includes a positive electrode active material including a lithium-nickel-cobalt-manganese composite oxide represented by general formula Lia-bNi1-x-y-zCoxMnyMzO2. A ratio Co/Mn in the lithium-nickel-cobalt-manganese composite oxide is 1.0 or less. In the above general formula, 0.9 < a ≤ 1.25, 0 < x < 0.3, 0 < y < 0.3, 0 < z < 0.2, and x+y+z < 1. For the positive electrode, entropy change ΔS0≤b<0.1 when 0 ≤ b < 0.1 satisfies the following formula (1), and entropy change ΔS0.5
Resumen de: WO2024014522A1
Provided is a method for recovering metals, which can produce a lithium hydroxide solution from a metal-containing solution and appropriately process the impurities separated at that time. The method for recovering metals from battery powder of lithium ion battery waste includes: an acid leaching step of leaching the metals in the battery powder into an acidic leaching solution to obtain a metal-containing solution containing lithium ions and other metal ions; a metal separation step of separating the other metal ions from the metal-containing solution; and, after the metal separation step, an electrodialysis step of subjecting the metal-containing solution containing lithium ions and fluoride ions as impurities to electrodialysis using a bipolar membrane to obtain a lithium hydroxide solution and an acidic solution comprising fluoride ions, wherein the acidic solution obtained in the electrodialysis step is mixed with the acidic leaching solution so that the acidic leaching solution contains calcium in the acidic leaching step, and the fluoride ions are precipitated by the calcium.
Resumen de: WO2024014521A1
Provided are a method for removing aluminum which can effectively remove aluminum, and a method for recovering metals. A method for removing aluminum includes: a leaching step of bringing a raw material, the raw material having battery powder, the battery powder being obtained from lithium ion battery waste and comprising at least aluminum and nickel and/or cobalt, into contact with an acidic leaching solution to leach the battery powder to obtain a leached solution containing at least aluminum ions and nickel ions and/or cobalt ions; and a neutralization step of using the leached solution as a metal-containing solution, increasing a pH of the metal-containing solution and separating a neutralized residue to obtain a neutralized solution, wherein a molar ratio of fluorine to aluminum (F/Al molar ratio) of the raw material is 1.3 or more, and wherein, in the neutralization step, the metal-containing solution contains calcium and fluorine, a molar ratio of calcium to aluminum ions (Ca/Al molar ratio) in the metal-containing solution is 0.2 or more, the aluminum ions in the metal-containing solution are precipitated and contained in the neutralized residue together with calcium and fluorine.
Resumen de: CN119256422A
A flexible battery includes: (1) at least one positively charged layer, (2) at least one negatively charged layer, (3) a clad electrode segment including a positively charged layer segment and a negatively charged layer segment, and (4) an additional clad electrode segment movably coupled to the clad electrode segment, where the additional clad electrode segment is positioned between the at least one positively charged layer and the at least one negatively charged layer. And the additional coated electrode section comprises an additional section with a positive electricity layer and an additional section with a negative electricity layer. Various other apparatuses, devices, systems, and methods are also disclosed.
Resumen de: MX2024012835A
Described are battery components including a current collector and a coating layer disposed over at least a portion of a surface of the current collector. The current collector can include a recycled content aluminum alloy. In some examples, the current collector can include from 50% to 100% recycled aluminum content. The recycled content aluminum alloy may be, for example, a 3xxx series aluminum alloy or a 5xxx series aluminum alloy.
Resumen de: EP4542710A1
To address the issue that the existing lithium ion battery with positive electrode containing manganese impacts battery performance, the application provides a lithium ion battery, which includes a positive electrode, a negative electrode, a non-aqueous electrolyte and a separator, and the separator is positioned between the positive electrode and the negative electrode, the positive electrode includes a positive electrode material layer, the positive electrode material layer includes a lithium manganese-based positive electrode active material, the non-aqueous electrolyte includes a non-aqueous organic solvent, a lithium salt and an additive, and the additive includes a compound represented by structural formula 1:the lithium ion battery meets the following requirements:0.1≤q*m/p≤20; and 20≤q≤60,0.01≤m≤2,1.5≤p≤5;The lithium ion battery provided by the invention can significantly reduce the ion exchange between Mn<2+> and lithium in the negative electrode, prevent manganese from damaging the negative electrode, and increase the stability of the negative electrode, thereby improving the safety performance of the lithium ion battery while ensuring its high energy density and cycle performance.
Resumen de: EP4542707A1
A lithium salt-free composite solid electrolyte membrane and a preparation method thereof are provided. The composition of the lithium salt-free composite solid electrolyte membrane includes: micro-nanoscale garnet-type solid electrolyte and polymer; where a mass ratio of the micro-nanoscale garnet-type solid electrolyte to the polymer is (60-100) : (5-40); a particle size of the micro-nanoscale garnet-type solid electrolyte is 100 nm - 2 µm. The disclosure also provides a preparation method for the lithium salt-free composite solid electrolyte membrane. The lithium salt-free composite solid electrolyte membrane prepared by the disclosure has controllable morphology and thickness, and does not need to add lithium salt and be equipped with anhydrous and inert environment atmosphere, so that the production cost can be significantly reduced, and large-scale production is easy.
Resumen de: EP4542747A1
Provided is a battery pack. The battery pack includes multiple battery cells, a casing, and multiple battery modules. A support beam is disposed in the casing. The support beam divides the interior space of the casing into multiple compartments. A connecting channel is formed between the bottom of the support beam and the inner bottom face of the casing. The connecting channel connects two adjacent compartments. Each battery module is disposed in a corresponding compartment.
Resumen de: WO2023244658A1
A system for incorporating one or more individual energy cells is provided. Individual energy cells include a top surface having a center terminal and an outer terminal. The top surface may include a pressure venting element configured for venting in an opposite direction of a bottom surface. The first terminal and the second terminal may be substantially planar electrical contacts.
Resumen de: EP4542672A2
Disclosed is an all-solid secondary battery including a cathode layer, an anode layer, and a solid electrolyte layer between the cathode layer and the anode layer, the cathode layer including a cathode current collector and a cathode active material layer on one surface of the cathode current collector, the anode layer including an anode current collector and a first anode active material layer on one surface of the anode current collector, the first anode active material layer including a first anode active material and a second anode active material, and the first anode active material including a first composite anode active material, wherein the first composite anode active material includes a first metal oxide represented by MaOb (0
Resumen de: EP4542724A1
Provided is a battery discharge apparatus, battery discharge system, and battery discharge method which uses a battery as a power source for reverse potential discharge. The battery discharge apparatus includes a discharge processor electrically connected to a first target battery and a second target battery to discharge the first and second target batteries, a first battery loader loaded with the first target battery to electrically connect the first target battery to the discharge processor, and a second battery loader loaded with the second target battery to electrically connect the second target battery to the discharge processor, and the first target battery is discharged by reverse potential discharge using the second target battery.
Resumen de: EP4542727A1
A battery top cover assembly includes a top cover sheet, a lower insulating member and a pole. The top cover sheet is provided with a mounting hole which penetrates the top and bottom of the top cover sheet, the lower insulating member is provided with a first through hole which penetrates the top and bottom of the lower insulating member and corresponds to the mounting hole, one end of the pole passes through the mounting hole and the first through hole and is pressed against a side of the lower insulating member facing away from the top cover sheet, a cavity is formed between the top cover sheet and the pole, and a vent portion is provided at the portion where the lower insulating member is pressed against the pole.
Resumen de: EP4542726A1
Disclosed are a battery cell (7), a battery (2), and an electric apparatus. The battery cell (7) includes a housing (20), an electrode assembly (11), and an optical fiber (8). The electrode assembly (11) is accommodated in the housing (20). The optical fiber (8) includes a first section (81) and a second section (82). The first section (81) is attached to the electrode assembly (11), the second section (82) is connected to the first section (81) and extends out of the housing (20), and an axis of the first section (81) is staggered with an axis of the second section (82). The optical fiber (8) is configured to obtain a status signal of the battery cell (7). In embodiments of this application, the temperature change and strain of the battery cell can be monitored simultaneously, improving the operation safety and stability of the battery cell (7).
Resumen de: EP4542754A1
The present application provides a separator, a method for preparing the same, and a secondary battery and an electrical device related thereto. The separator includes a porous substrate and a coating layer disposed on one or more surface of the porous substrate, wherein the coating layer includes a three-dimensional skeleton structure and a filler, and at least a portion of the filler is filled in the three-dimensional skeleton structure, and the coating layer has a Zeta potential of less than 0 mV. The separator of the present application has the characteristics including excellent heat resistance, good uniformity, and good ion conductivity, so that a secondary battery using the separator can have the combined characteristics of high energy density, high thermal safety performance, and long service life.
Resumen de: EP4542752A1
The present application provides a separator, a methods for preparing the same and a secondary battery and and electrical device related thereto. The separator includes a porous substrate and a coating layer disposed on one or more surfaces of the porous substrate, wherein the coating layer comprises a three-dimensional skeleton structure and a filler, and at least a portion of the filler is filled in the three-dimensional skeleton structure, and the filler is secondary particles formed by agglomeration of primary particles. The separator provided in this application has characteristics including excellent heat resistance, high bonding strength, good electrolyte infiltration and retention and the like, which enables secondary battery using the separator to have the combined characteristics of high energy density, high thermal safety performance, long cycle life, and good rate performance.
Resumen de: EP4542677A1
This application discloses a negative electrode plate and an electrochemical device. The face-to-face contact in the lamellar hard carbon active material in the negative electrode plate replaces the point-to-point contact in the hard carbon active material of conventional morphology, thereby effectively reducing the internal resistance of the negative active material layer, and effectively increasing the compacted density of the negative active material layer and reducing the porosity, and in turn, increasing the energy density of the lithium-ion battery. More excellent kinetics are available for diffusing lithium ions in the lamellar hard carbon negative active material, thereby improving the fast charge capability of the lithium-ion battery. In addition, the low-expansion hard carbon active material endows the lithium-ion battery with higher cycle performance. Moreover, the preparation method in this application is simple, easy to operate and control, cost-effective, and suitable for industrial production.
Resumen de: EP4541799A1
This application provides a compound of formula (I), formula (II), or formula (III). The compound has good adsorption ability on the surface of a metal and a substance containing metal ions, and when applied to secondary batteries, can help improve cycling performance and service life of the secondary batteries.
Nº publicación: EP4542733A1 23/04/2025
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Resumen de: EP4542733A1
A battery module according to one example of the present invention comprises a plurality of battery cells including a first terminal having a vent portion and a second terminal disposed apart from the first terminal, a cell case having an insertion opening opened such that the plurality of battery cells is inserted, a bottom on which the plurality of battery cells is seated, and a plurality of first terminal holes provided in the bottom, and a first protective member provided to surround the first terminal hole, to which the second terminal is exposed, in a state where the battery cell is seated on the bottom of the cell case so that the second terminal of the battery cell is exposed to the first terminal hole.
BOPI
Sede Electrónica
