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1133
resultados
Última actualización
04/09/2024 [08:11:00]
Resultados 1050 a 1075 de 1133
Resumen de: EP4417581A1
A method (40) for producing a cobalt sulfate crystal, which is performed for obtaining crystals of a cobalt sulfate heptahydrate from a cobalt sulfate-containing aqueous solution, the method includes a crystallization step (10) of subjecting a cobalt sulfate-containing aqueous solution (11) to evaporative concentration to obtain a slurry (12) containing cobalt sulfate crystals, a separation step (20) of subjecting the slurry (12) obtained in the crystallization step (10) to solid-liquid separation to obtain a dewatered cake (21) of the cobalt sulfate crystals, and a drying step (30) of drying the dewatered cake (21) obtained in the separation step (20) by a flash drying of bringing the dewatered cake (21) into direct contact with a drying medium (31) to obtain the cobalt sulfate crystals (41).
Resumen de: EP4418399A1
The present invention relates to a lithium secondary battery which includes an electrode assembly in which a positive electrode plate, a negative electrode plate, and a separator interposed between the positive electrode plate and the negative electrode plate are wound in one direction, a battery can in which the electrode assembly is accommodated, and a sealing body which seals an open end of the battery can. The positive electrode plate includes positive electrode active material comprising single particles, quasi-single particles, or a combination thereof, and the positive electrode active material has D<sub>min</sub> of 1.0 um or more.
Resumen de: KR20230052031A
An energy storage device of the present invention comprises: a first battery module in which a plurality of battery cells are arranged; a second battery module in which a plurality of battery cells are arranged and which is arranged to face the first battery module; module screws which extend in a front-rear direction in which the first battery module and the second battery module are arranged and which fasten the first battery module and the second battery module; an upper fixing bracket which is arranged on upper sides of the first battery module and the second battery module and fixes the first battery module and the second battery module; and a lower fixing bracket which is arranged on lower sides of the first battery module and the second battery module and fixes the first battery module and the second battery module. According to the present invention, it is possible to strengthen a bonding force between the first battery module and the second battery module.
Resumen de: EP4418416A1
The present invention relates to a cylindrical secondary battery comprising: a can having a circular floor part, a cylindrical side part of which one end is open, a beading part formed to be adjacent to one end of the side part, and a curling part formed by curling an end portion of the side part; an electrode assembly accommodated in the can; a first cap assembly coupled to the open end portion of the side part; a second cap assembly coupled to the floor part; a first electrode current collection plate arranged between the first electrode plate and the first cap assembly; and a second electrode current collection plate arranged between the second electrode plate and the second cap assembly, wherein, after the first cap assembly is mounted on the first electrode current collection plate, the beading part is formed in an area that presses the outer edge of the first electrode current collection plate, in a state in which a cap plate and the outer edge of the first electrode current collection plate are in contact with the side part.
Resumen de: EP4417310A1
One embodiment of the present disclosure provides a method of preparing a catalyst for manufacturing carbon nanotubes, which includes: (a) dissolving a metal precursor in a solvent to prepare a precursor solution; (b) thermally decomposing the precursor solution by spraying the precursor solution into a reactor; and (c) obtaining a catalyst, wherein the catalyst includes a metal component represented by the following Chemical Formula 1: Chemical Formula 1 Cox:M1, Zry:M2zwherein Co represents cobalt or oxides or derivatives thereof, M1 represents at least one metal, or oxides or derivatives thereof, selected from Al, Ca, Si, Ti, and Mg, Zr represents zirconium, or oxides or derivatives thereof, M2 represents at least one metal, or oxides or derivatives thereof, selected from W, V, Mn, and Mo, x/y satisfies 0.2 ≤ x/y ≤ 2.6, and x/z satisfies 6 ≤ x/z ≤ 13.
Resumen de: KR20230052033A
An energy storage device according to the present invention includes: at least one battery module including a plurality of battery cells; and a cooling fan configured to form an air flow into the battery module, wherein the battery module includes: a plurality of battery cells disposed to be spaced apart from each other in different directions; a first frame in contact with a lower portion of each of the plurality of battery cells and fixing the battery cell arrangement; and a second frame in contact with an upper portion of the plurality of battery cells, disposed to be spaced apart from the first frame, and fixing the battery cell arrangement, and the cooling fan forms an air flow into a space between the plurality of battery cells spaced apart from each other. According to the present invention, it is possible to cool the plurality of battery cells with a simple structure through the arrangement of the cooling fan and the plurality of battery cells.
Resumen de: EP4418366A1
Performance of a negative electrode material is improved. The negative electrode material is a negative electrode material for a battery that includes carbon, sodium tungstate provided on a surface of the carbon, and silicon provided on the surface of the carbon.
Resumen de: EP4418350A1
The present disclosure provides a mixture composition for a secondary battery electrode having good properties and a method for producing an electrode mixture sheet, an electrode mixture sheet, an electrode, and a secondary battery that contain the mixture composition for a secondary battery electrode. The mixture composition for a secondary battery electrode includes a binder, a conductive aid and/or an electrode active material, and a liquid component that can be used as a component in a liquid electrolytic solution.
Resumen de: EP4418365A1
A tungsten compound is appropriately disposed on a surface of carbon. The negative electrode material is a negative electrode material for a battery that includes amorphous carbon and sodium tungstate provided on a surface of the amorphous carbon.
Resumen de: EP4418355A1
A negative electrode structure for a secondary battery (10) includes: a body (12) that is in a form of a foil or a thin plate and contains zinc as a base material; and a non-electron conductive film (11) provided on at least a first surface of the body (12). The film (11) is stretchable. The film (11) includes: an opening portion (13) formed to expose a portion of a first surface of the body (12); and an electrode reaction inhibiting portion (14) that surrounds the opening portion (13) and inhibits an electrode reaction in the body (12). The film (11) is attached to the body (12) in a liquid-tight manner.
Resumen de: EP4417307A1
One embodiment of the present disclosure provides a catalyst for manufacturing carbon nanotubes, including a metal component represented by the following Chemical Formula 1: Chemical Formula 1 Cox:M1, Zry:M2zwherein Co represents cobalt or oxides or derivatives thereof, M1 represents at least one metal, or oxides or derivatives thereof, selected from Al, Ca, Si, Ti, and Mg, Zr represents zirconium, or oxides or derivatives thereof, M2 represents at least one metal, or oxides or derivatives thereof, selected from W, V, Mn, and Mo, x/y satisfies 0.2 ≤ x/y ≤ 2.6, and x/z satisfies 6 ≤ x/z ≤ 13.
Resumen de: EP4418282A1
The object of the present invention is to provide a carbon black that can easily make an electrode slurry used for secondary batteries and the like highly viscous to increase the shear stress, thus improving the dispersibility of blended materials, and an electrode slurry that can be easily made highly viscous to increase the shear stress for improving dispersibility of blended materials. A mixed carbon black comprising mixed two types of carbon blacks, the carbon blacks comprising a first carbon black and a second carbon black having different specific surface areas, wherein the second carbon black is a porous carbon black and the specific surface area of the first carbon black is smaller than that of the second porous carbon black, and wherein the value calculated by the following formula (I) is 120 to 350 m<sup>2</sup>/g, and the value of (N2SA(2) - N2SA(1)) in the following formula (I) is 140 to 650 m<sup>2</sup>/g when the specific surface area of the first carbon black is N2SA(1) m<sup>2</sup>/g and the specific surface area of the second carbon black is N2SA(2) m<sup>2</sup>/g. (N2SA(2) - N2SA(1)) × mass of second carbon black/(mass of first carbon black + mass of second carbon black)
Resumen de: EP4418364A1
Performance is improved. There is provided a negative electrode material for a battery, in which the negative electrode material includes carbon, sodium tungstate, and silicon particles 33 including silicon, and in the silicon particle 33, a ratio of the amount of Si in Si2p derived from elemental silicon to the amount of Si in Si2p derived from SiO<sub>2</sub> in a surface layer when measured by X-ray photoelectron spectroscopy is 3 or more on an atomic concentration basis.
Resumen de: EP4418424A1
This power storage device transport container has a structure in which a compact containing an acrylic-based polymer is disposed in a gap between a power storage device and the transport container. This compact is preferably film-shaped, sheet-shaped, or plate-shaped. With such a power storage device transport container, it is possible to reduce the risk of ignition in the event of damage to a power storage device or a power storage device stack in which a plurality of power storage devices are stacked, or an abnormality such as a high-temperature environment.
Resumen de: EP4417983A1
A measuring device measures a state of a plurality of weld zones formed when a weldment is welded to a workpiece at a plurality of locations. This measuring device includes a plurality of application circuits that exclusively apply a current to each of one or more weld zones among the plurality of weld zones, and a detection circuit that detects a voltage obtained by combining voltages indicating magnitudes of voltage drops generated respectively by the plurality of more weld zones due to the application of the current. The measuring device further includes a processing unit that outputs information indicating the state of the plurality of weld zones on the basis of the voltages detected by the detection circuit.
Resumen de: KR20230052358A
An energy storage device according to an embodiment of the present disclosure comprises: a battery which stores received electrical energy in the form of direct current, or outputs stored electrical energy; and a battery manager which monitors status information of the battery. The battery manager includes: battery pack circuit boards which are disposed in each of the plurality of battery packs and obtain status information of a plurality of battery cells included in each battery pack; and a main circuit board which is connected to the battery pack circuit boards, and receives the status information obtained by each battery pack from the battery pack circuit boards.
Resumen de: EP4417632A1
The present invention relates to a copolymer and core-shell particles, a slurry composition, a separator and a secondary battery which comprise the copolymer, the copolymer comprising, with respect to 100 wt% of the total weight of the copolymer, greater than 5 wt% and less than or equal to 70 wt% of an acrylonitrile-based monomer unit, greater than or equal to 15 wt% and less than 90 wt% of an acrylate-based monomer unit, 1-20 wt% of an acrylamide-based monomer unit, and 1-10 wt% of an acrylic acid-based monomer unit.
Resumen de: KR20230053287A
According to one embodiment of the present disclosure, an energy storage device with improved safety and efficiency includes: a battery configured to store electrical energy to be received in the form of a direct current or output stored electrical energy; and a battery manager configured to control the battery, wherein the battery manager includes: a sensing unit including a sensor configured to measure a temperature of the battery; a memory configured to store a charging derating table and a discharging derating table; and a microcomputer unit configured to control a C-rate based on the temperature of the battery and the charging derating table when the battery is charged, and control the C-rate based on the temperature of the battery and the discharging derating table when the battery is discharged.
Resumen de: GB2619674A
A deposited sodium iron phosphate positive electrode material, the chemical formula thereof being NaFePO4-xB2O3@A, wherein x = 0.001-0.3, A is at least one of nano oxides of Zn, Fe, Cu, Ni, Mn, Co, Cr, Ti, Al, Mo, Zr or Ag elements. When a battery prepared from the deposited sodium iron phosphate positive electrode material is charged and discharged, the sodium ion diffusion distance is short, and the transmission rate is high. The deposited sodium iron phosphate positive electrode material comprises boron oxide and a nano oxide; boron oxide can reduce a change degree of the structure in the charging/discharging process of the sodium iron phosphate positive electrode material, the conductivity of the sodium iron phosphate positive electrode material is improved, and the electrochemical performance is improved. The nano oxide can effectively inhibit a shuttle effect existing in the sodium iron phosphate positive electrode material, and the cycle performance of the sodium iron phosphate positive electrode material is improved.
Resumen de: EP4418382A1
Reforming apparatus (1) of electrochemical cells (30) and related method wherein it is provided:- a conveyor (29) moving step-wise along a transport path (20) according to an advancement direction A with a movement step P and according to a time interval T between one movement step P and the next, wherein the time interval T is defined by a movement time Tm and a stop time Ts of the conveyor;- a plurality of seats (25), each configured to house an electrochemical cell (30), said seats (25) being arranged on the conveyor (29) so as to be transported along the transport path (20); and- a reforming device (80) comprising N reforming needles (81), where N is an integer at least equal to 2.The transport path (20) comprises an active sector (21); said seats (25) being equidistant from each other and spaced along the advancement direction A according to a predetermined spacing step D at least along the active sector (21) of the transport path (20). The movement step P of the conveyor (29) corresponds to N times the predetermined spacing step D. Along the active sector (21) of the transport path (20), a reforming area (22) is defined at which N seats (25) at a time of said plurality of seats (25) are adapted to stop in the stop time Ts. In said reforming area (22), the N reforming needles (81) and the N seats (25) currently stopped in the reforming area (22) are movable with respect to each other to allow the simultaneous insertion of the N reforming needles (81) into respective hole
Resumen de: EP4418415A1
The present application relates to a cylindrical cell, a battery, and a power consuming device, and belongs to the field of battery manufacturing technology. The present application provides a cylindrical cell, comprising: a housing, the housing having an opening at an end in a first direction; and an end cap, covering the opening; wherein the housing comprises a side wall, the side wall comprises a first wall portion and a second wall portion disposed in the first direction, the second wall portion is located on a side of the first wall portion close to the opening, the second wall portion has a thickness greater than the thickness of the first wall portion, and the second wall portion is welded to the end cap. The housing and the end cap of the cylindrical cell are welded with good quality, thereby ensuring enhanced safety performance. The present application further provides a battery and a power consuming device, which comprises the cylindrical cell.
Resumen de: EP4418356A1
A silicon-carbon negative electrode material for a lithium-ion battery, a method for preparing the same, and usage thereof are provided in the disclosure. The method includes: (1) forming an oxygen-free environment inside a reactor by fixing a porous carbon-based film material inside the reactor and injecting an inert gas to replace air inside the reactor; (2) obtaining a silicon-carbon negative electrode material precursor by heating and insulating the reactor where the oxygen-free environment is formed in operation (1) and injecting a silane gas for a chemical vapor deposition (CVD) reaction; and (3) obtaining the silicon-carbon negative electrode material for the lithium-ion battery by processing the silicon negative electrode material precursor obtained in operation (2). The method can achieve even vapor deposition of nano-silicon particles by adopting the porous carbon-based film material, thereby effectively alleviating a problem of volume expansion of silicon during cycling. Moreover, polarization of the material can be improved effectively through carbon deposition, thereby effectively improving electrochemical performances of the silicon-carbon negative electrode material.
Resumen de: EP4418338A2
The present invention relates to a secondary battery in which an electrode tab is improved in mechanical strength and a method for manufacturing the same. Also, the secondary battery according to the present invention includes: an electrode provided with a coating portion coated with an active material on an electrode collector and a non-coating portion on which the active material is not applied to the electrode collector in a longitudinal direction of the electrode collector and a tab part extending from the coating portion in a width direction of the electrode collector without being coated with the active material and forming two or more layers by overlapping when the electrode is wound.
Resumen de: EP4417456A1
Ce système de station de recharge (10) comprend deux prises (52,62), chacune configurée pour permettre la recharge d'un véhicule électrique en lui fournissant un courant continu, deux conducteurs (40,46), associés chacun à une prise (52,92), et deux groupes de modules de puissance (18), associés chacun à une prise (52,62) et aptes à transformer un courant provenant d'un réseau électrique en courant continu délivré à la prise associée (52,62). La méthode de diagnostic comprend une étape de connexion, visant à connecter ensemble les deux prises (52,62) de manière à former une boucle comprenant les deux prises (52,62), les deux conducteurs et les deux groupes de modules de puissance (18); une étape de test, consistant à émettre une grandeur électrique circulant entre les deux prises (52,62), dans la boucle, et à mesurer des états de fonctionnement d'une partie au moins des éléments de la boucle en réaction à cette grandeur électrique ; et une étape d'analyse consistant à diagnostiquer lesdits éléments sur la base des mesures des états de fonctionnement.
Nº publicación: EP4418631A1 21/08/2024
Solicitante:
TECHTRONIC CORDLESS GP [US]
Techtronic Cordless GP
Resumen de: EP4418631A1
The present invention provides an electrical appliance assembly for multiclient networking, comprising an electrical appliance and a battery unit, wherein the electrical appliance is configured to obtain electric energy from the battery unit or provide electric energy to the battery unit; the electrical appliance comprises a first communication interface and a second communication interface, wherein the first communication interface is configured to communicate with a peripheral device and the second communication interface is configured to communicate with a battery unit; the battery unit comprises a third communication interface and a fourth communication interface, wherein the third communication interface is configured to communicate with a peripheral device and the fourth communication interface is configured to communicate with an electrical appliance. With the present invention, a user, when operating an electrical appliance assembly wirelessly through peripheral devices, can establish wireless connections according to the conditions of the assembly or optionally, while, by using preset evaluation rules in the system, any conflicts that may occur when more than one peripheral device simultaneously reads data from and/or writes data to the electrical appliance assembly are avoided, which allows the entire multiclient networking system to operate more flexibly, reliably, and efficiently.
BOPI
Sede Electrónica
