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1198
resultados
Última actualización
20/08/2025 [07:27:00]
Resultados 425 a 450 de 1198
Resumen de: EP4601070A1
The present application relates to the technical field of material technology, more particularly to a cathode lithium-supplementing additive, a preparation method thereof, a lithium-rich cathode, and a secondary battery. The cathode lithium-supplementing additive includes: a lithium-rich iron-based material and a passivation material in situ bonded to an outer surface of the lithium-rich iron-based material; a chemical formula of the passivation material is aLi2O·bFexOy, 1≤x≤3, 1≤y≤4, 0.0001≤a≤0.01, 0.0001≤b≤0.01. The lithium-rich iron-based cathode lithium-supplementing additive of the present application has a good lithium-supplementing effect on the cathode material, and can timely supplement the loss of lithium ions in the material during the charge and discharge cycle. In addition, the passivation material can effectively prevent the interface from reacting with water and carbon dioxide in the environment to form excessive residual alkali, improve the moisture resistance and processing performance of the lithium-supplementing material, improve the cycle performance of the cathode material, and improve the cycle performance of the battery and service life.
Resumen de: EP4601042A1
This application relates to a hard carbon material and a preparation method thereof, an electrochemical apparatus, and an electronic apparatus. The hard carbon material includes a porous skeleton, a first element, and element zinc, where the first element includes at least one of element nitrogen, element sulfur, element boron, element phosphorus or element selenium. A percentage of the first element with respect to a total mass of the hard carbon material is denoted by A1%, and a percentage of the element zinc with respect to the total mass of the hard carbon material is denoted by A2%, where the hard carbon material satisfies 1.5≤A1/A2≤5. When applied to an electrochemical apparatus, the hard carbon material in this application can significantly improve the energy density of the electrochemical apparatus.
Resumen de: CN120092338A
A stacking apparatus (1), comprising: a stacking station (26) configured to receive a foil (100, 101); the first conveying device (10) is used for conveying the first foil sheet (100); and a second transport device (11) for transporting a second foil (101), the first transport device and the second transport device being alternately movable between a pick-up position and a release position; a feeding device (27) of the continuous strip-shaped membrane (102), the feeding device facing the stacking station (26); a displacement device (29) fed by the feeding device (27) and comprising a follow-up device (30) which can be moved between the first end position (P1) and the second end position (P2) and above the stacking station (26) when the second conveyor device (11) is moved from the release position to the pick-up position, and which can be moved between the first end position (P1) and the second end position (P2) and above the stacking station (26) when the first conveyor device (10) is moved from the release position to the pick-up position. The following device can move between the second end position (P2) and the first end position (P1) and above the stacking station (26). The accompanying device (30) comprises at least one accompanying surface (31) configured to contact the continuous ribbon diaphragm (102). The motorized member (34) acts on the accompanying device (30) to rotate the at least one accompanying surface (31) as the accompanying device (30) moves between the f
Resumen de: TW202431690A
An electrode assembly includes unit cells stacked in a stacking direction, each including an electrode structure, a separator structure, and a counter-electrode structure. The electrode structure includes an electrode current collector and an electrode active material layer, the electrode structure extends in a longitudinal direction perpendicular to the stacking direction, an end portion of the electrode current collector extends past an outer surface of the electrode active material layer and the separator structure. The electrode assembly further includes an adhesive layer including a resistive polymeric material, and an electrode busbar attached to the end portions of the electrode current collectors through the adhesive layer. The adhesive layer is configured to adhere with the electrode busbar and the electrode current collectors below a transition temperature, and at least partially melt at or above the transition temperature to increase an electrical resistance between the electrode busbar and the electrode current collectors.
Resumen de: WO2024076987A1
A rechargeable battery cell can include an electrode having a plurality of three-dimensional channels defined therethrough, with at least 90% of three dimensional channels sized to have pores between 50 nanometers to 400 microns. An ion exchange material can be arranged to define an interface with at least a portion of the electrode. In some embodiments the electrode includes a zinc (Zn) containing anode and a cathode including at least one of nickel hydroxide (Ni (OH)2), nickel oxyhydroxide (NiOOH), manganese dioxide (Mn02), copper oxide, and bismuth oxide.
Resumen de: TW202429736A
According to one aspect, an additive for an iron negative electrode of an alkaline electrochemical cell may include a powder of discrete granules including agglomerated particles, the agglomerated particles including at least one metal sulfide.
Resumen de: WO2024076664A1
Disclosed herein is an apparatus comprising an electrode active layer comprising a network of high aspect ratio carbon elements defining void spaces within the network; a plurality of electrode active material particles disposed in the void spaces within the network and enmeshed in the network; and a surface treatment on the surface of the high aspect ratio carbon elements which promotes adhesion between the high aspect ratio carbon elements and the active material particles.
Resumen de: WO2024076553A2
A method of making substrates, such as grids, for assembly with lead-acid batteries is set forth herein. The grids can take the form of a strip of a multitude of serially-connected metal grids. The grids can ultimately be employed as positive electrodes or negative electrodes in a larger lead-acid battery assembly. Surfaces of the grids can be contacted with an aqueous solution, such as submergence in a bath thereof, as an example. The aqueous solution can comprise hydrogen peroxide.
Resumen de: WO2024076361A1
Electrolytes for improved electrochemical batteries are provided. A carbonate-based electrolyte can include a thioamide compound (e.g., thioacetamide (TAA), thiourea (THU), or thioformamide). The electrolyte can include a salt, a carbonate solvent, and the thioamide compound as an additive. The thioamide compound can be present in a concentration of, for example, 1 millimolar (mM) to 100 mM.
Resumen de: WO2024074816A1
A solid electrolyte separator for an electrochemical storage device is described. The solid electrolyte separator comprises: an electrolyte comprising a lithium-ion conductive compound; and a binder comprising a copolymer, wherein the lithium-ion conductive compound comprises sulfur, and the copolymer has a repeating unit comprising a carboxylic acid group or a conjugate base thereof. Also described is a masterbatch product, a method of manufacturing the solid electrolyte separator and an electrochemical storage device.
Resumen de: EP4601041A1
The present invention relates to: a copolymer composition comprising a first copolymer comprising an acrylic acid-based monomer unit and an acrylamide-based monomer unit, and a second copolymer comprising a vinyl pyrrolidone-based unit, an acrylate-based monomer unit comprising a hydroxyl group, and an acrylamide-based monomer unit; and a negative electrode slurry, a negative electrode, and a secondary battery comprising the copolymer composition.
Resumen de: EP4600279A1
The present invention relates to: a copolymer prepared by copolymerizing and hydrolyzing two or more monomers selected from the group consisting of an acrylonitrile-based monomer, an acrylate-based monomer, and an acrylic acid-based monomer with a vinyl acetate-based monomer; and a core-shell particle, a slurry composition, a separator, and a secondary battery which comprise same.
Resumen de: EP4601032A1
The present invention relates to a negative electrode active material for a lithium secondary battery, a method for preparing same, and a lithium secondary battery comprising same. More specifically, the negative electrode active material comprises one selected from Li<sub>1.1</sub>Ti<sub>0.9</sub>O<sub>2</sub> and a mixture in which Li<sub>1.1</sub>Ti<sub>0.9</sub>O<sub>2</sub> and carbon nanotubes (CNTs) are mixed in a weight ratio of 8: 2 to 9: 1. The negative electrode active material for a lithium secondary battery, comprising the above-described components has an R-3m structure, and provided is a lithium secondary battery which exhibits high capacity and excellent lifespan characteristics, and in particular, exhibits high capacity during high-rate charging and discharging.
Resumen de: EP4601064A1
A solid electrolyte composition according to the present disclosure comprises an amine-based compound represented by the following Chemical Formula 1; a multifunctional isocyanate; and a lithium salt, wherein the content of the lithium salt is 40 to 80 parts by weight based on 100 parts by weight of the amine-based compound. Chemical Formula 1 In Chemical Formula 1, L<sub>1</sub> and L<sub>2</sub> are each independently selected from one or more of a C<sub>1</sub>-C<sub>12</sub> alkylene group or heteroalkylene group, a C<sub>3</sub>-C<sub>16</sub> cycloalkylene group or cycloheteroalkylene group, a C<sub>6</sub>-C<sub>16</sub> arylene group or heteroarylene group, and Chemical Formula 2, wherein n is a natural number in the range of 1 to 5,000, and m is a natural number in the range of 1 to 200.
Resumen de: EP4601031A1
An anode active material for a lithium secondary battery according to exemplary embodiments includes a core particle; a crown ether coating formed on the core particle and including crown ether; and conductive particles formed on the crown ether coating or within the crown ether coating. Accordingly, the crown ether coating including the crown ether compound may improve stability and reduce resistance, while the conductive particles may enhance output characteristics.
Resumen de: WO2024074572A1
The present application relates to ceramic/polymer hybrid solid electrolytes with improved interfacial strength, comprising a surface-dehydrated pre-treated ceramic.
Resumen de: EP4600282A1
The present invention relates to core-shell particles (or a core-shell particle-type binder), a composition comprising the core-shell particles (or the core-shell particle-type binder), or an electrode manufactured from the composition, the core-shell particles having a perfluorinated resin core, which comprises a perfluorinated polymer, and a resin shell layer, which comprises an acrylic polymer, wherein the core-shell particles are prepared by emulsion-polymerizing an acrylic monomer to the perfluorinated resin core by using, as an emulsifier, a polyethylene glycol ether having an alkyl group of C<sub>8</sub> or greater, which is substituted with at least one alkyl of chemical formula 1, and the acrylic monomer comprises (a) methyl methacrylate (MMA), (b) methacrylic acid (MAA) or acrylic acid (AA), and (c) a C<sub>2</sub>-C<sub>6</sub> alkyl (meth)acrylate.
Resumen de: EP4601096A1
The present invention relates to a secondary battery which can reduce thermal energy of internal gas produced inside the case. Disclosed as an example is a secondary battery comprising: an electrode assembly; a case in which the electrode assembly is accommodated; a cap plate which seals the top of the case and includes a vent having a safety vent formed therein; and a rotating member which is coupled to the bottom of the vent hole.
Resumen de: EP4600976A1
Provided is a method for producing a sulfide solid electrolyte, the method including a first step of mixing a raw material-containing substance that contains a lithium atom, a phosphorus atom, a sulfur atom, and a halogen atom in an organic solvent to prepare a mixture, a second step of irradiating the mixture with a microwave of 0.5 to 700 W/g to heat the mixture to 50 to 360°C, and a third step of cooling the mixture to 20 to 70°C, the second and third steps being repeated 2 to 50 times. In the method for producing a sulfide solid electrolyte, a liquid phase method is adopted with a lowered heating temperature, and a sulfide solid electrolyte that has a particle size maintained by suppressing granulation caused by heating and further has a high quality can be efficiently produced.
Resumen de: EP4600675A1
A charge/discharge test system includes: a plurality of charge/discharge test devices (12) configured to perform charging and discharging of charge/discharge targets (9); a switching circuit (14) capable of switching between combinations of electrical connection between one or more of the charge/discharge test devices (12) and one or more of the charge/discharge targets (9), and a control unit (16) configured to control the switching circuit (14) to execute switching between the combinations.
Resumen de: EP4600023A1
A method of manufacturing a current collector foil with a resin film includes a step A of cutting a metal foil for a current collector foil into sheets, a step B of allowing a movable stage to hold the cut metal foil for each sheet by suction and allowing the movable stage to move the metal foil held by suction onto a resin film, and a step C of bringing the resin film into contact with the metal foil to heat fusion-weld the resin film to the metal foil, in which the movable stage includes a plate-like body including a heating-suction region, and an area of the heating-suction region is smaller than an area of the cut metal foil.
Resumen de: CN119998974A
Disclosed is a method for producing a multilayer solid electrolyte (SSE) comprising alternating dense and porous layers wherein the number of layers is at least 2, the method comprising: adding a first compound comprising one or more alkali and/or alkaline earth metals and a first binder to a first solvent, thereby obtaining a first mixture; adding a second compound comprising one or more alkali metals and/or alkaline earth metals, a second binder and a pore forming compound to a second solvent, thereby obtaining a second mixture; film casting the first mixture and the second mixture on a substrate until the number of layers is obtained, thereby obtaining a green (multilayer) structure; degreasing the green (multilayer) structure in an atmosphere comprising at least 20 vol% oxygen at a temperature between 250 DEG C and 800 DEG C, and sintering the green (multilayer) structure, thereby obtaining the multilayer SSE. The invention further discloses a multilayer SSE obtained by the method of the invention and a solid state battery comprising such SSE.
Resumen de: MX2025004085A
The present disclosure relates to a battery unit for a vehicle. The battery unit comprises a battery tray made of a composite material and defining an interior space configured to receive a battery comprising one or more battery cells. Further, the interior space is delimited by a bottom wall and one or more lateral walls. Additionally, the battery unit comprises a top cover configured to close the battery tray, wherein a cooling system for cooling the battery is integrated. The present disclosure further relates to battery systems and vehicles including one or more battery units.
Resumen de: CN119998249A
The present invention relates to a method for producing a sintered inorganic substrate comprising disposing an inorganic substrate between first and second carbon-containing thermally conductive substrates, disposing the first and second thermally conductive substrates and the inorganic substrate between third and fourth thermally conductive substrates, heating the third and/or fourth thermally conductive substrate to a temperature between 750 DEG C and 1400 DEG C at a heating rate of at least 50 DEG C/s, thereby heating the first and/or second thermally conductive substrate, respectively, and sintering the inorganic substrate by heating the inorganic substrate with the heated first and/or second thermally conductive substrate at a temperature between 750 DEG C and 1400 DEG C, wherein the third and fourth thermally conductive substrates independently of each other comprise one or more single crystal metal oxides and/or single crystal metal nitrides.
Nº publicación: EP4598771A1 13/08/2025
Solicitante:
POLESTAR PERFORMANCE AB [SE]
Polestar Performance AB
Resumen de: US2024113354A1
A electric vehicle battery thermal regulation system configured to prioritize a flow of cooling fluid past at least one of a battery cell experiencing a thermal event, including a plurality of conduits through which a flow of thermal regulation fluid can flow, portions of the thermal regulation system positioned in close proximity to the at least one of a plurality of battery cells to provide cooling to said plurality of battery cells, wherein the thermal regulation system includes one or more bi-material valves configured to at least one of open or close in response to a change in temperature of the thermal regulation fluid, thereby rerouting a flow of the thermal regulation fluid through the plurality of conduits to prioritize cooling to one or more battery cells experiencing a thermal event.
BOPI
Sede Electrónica
