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1408
resultados
Última actualización
17/12/2025 [07:14:00]
Resultados 425 a 450 de 1408
Resumen de: EP4661142A1
A battery formation device is provided according to exemplary embodiments of the present invention. The battery formation device comprises: a horizontal frame, first and second clamp holders configured to be moved along the horizontal frame, a vertical frame on the horizontal frame, a drive shaft coupled to the vertical frame, first and second arms coupled to the drive shaft, a first guide connected to the first arm, and a second guide connected to the second arm.
Resumen de: EP4661185A1
A battery pack includes a pack body, and a cooling device outside the pack body. The pack body includes a plurality of battery cells stacked in a first direction, a first case configured to accommodate the plurality of battery cells and including a first cooling channel configured to cool the plurality of battery cells, and a second case defining an inner space for accommodation of the plurality of battery cells together with the first case. The cooling device includes a second cooling channel provided on the second case and configured to cool the plurality of battery cells while in contact with the second case. The second case includes two or more concave portions configured to accommodate the cooling device, and a venting flow path provided between the concave portions and configured to discharge a gas generated in the plurality of battery cells.
Resumen de: EP4661191A2
The present disclosure relates to a separator for an electrochemical device and the electrochemical device including the same, and more specifically, to a separator for an electrochemical device and the electrochemical device including the same, in which damage to a porous polymer base can be prevented, and an insulation breakdown voltage can be increased by having an adhesive layer including a hollow particle type polymer binder on a coating layer to perform a buffering action against a pressure applied to a lamination process of electrodes and the separator.
Resumen de: EP4661240A1
Embodiments of this application provide a charging/discharging circuit, a charging/discharging control method, a control apparatus, and an electronic device, used in the field of charging technologies. The charging/discharging circuit includes three battery group. A first battery group is coupled to an input port. A negative electrode of a second battery group and a third battery group that are connected in parallel to each other is grounded, and a positive electrode of the second battery group and the third battery group is coupled to the first battery group through a switch. A negative electrode of the first battery group is further grounded through a switch. In addition, the input port is coupled to an output port through a buck circuit, the first battery group and the second battery group that are connected in parallel are coupled to an output of the buck circuit through a switch, and the first battery group is coupled to the output of the buck circuit through another switch. The output port is coupled to the output of the buck circuit. In this way, during charging, the first battery group to the third battery group can be first charged in series, and supplementary charging can be performed on the second battery group and the third battery group; and during discharging, the three battery groups discharge in parallel.
Resumen de: EP4661111A1
The present application provides a positive electrode active material and a preparation method therefor and a battery comprising same, and an electrical device. The positive electrode active material comprises a core and a first area formed on at least part of the surface of the core; the first area comprises a V element, and the mass concentration of the V element in the first area is denoted as W<sub>1</sub>; the core comprises a V element, and the mass concentration of the V element in the core is denoted as W<sub>2</sub>, then W<sub>1</sub>>W<sub>2</sub>.
Resumen de: EP4661154A1
Dispositif de mesure des variations dimensionnelles de cellules électrochimiques de batterie lors de cycles de charge et de décharge, comportant suivant un axe principal (A) entre une plaque inférieure (2) et une plaque supérieure (4) d'une presse reliées rigidement, un empilage comprenant un plateau fixe (14) et un plateau mobile (12) de serrage entre eux d'une cellule en appliquant une force axiale, un capteur de cette force axiale (26), un capteur de déplacement axial du plateau mobile (12), et un vérin hydraulique (16) comprenant d'un côté d'un piston une première chambre délivrant une première force vers la cellule, et de l'autre côté une deuxième chambre, équipée d'un réservoir avec accumulateur de pression à gaz (66), délivrant une deuxième force de contrôle de pression qui est opposée à la première force pour donner au final la force axiale appliquée par le vérin (16).
Resumen de: EP4661161A1
Provided are a battery pack and a powered device. The battery pack includes a box body (100), battery modules (200) and a pressure relief system (400). The multiple battery modules (200) are stacked within the box body (100) in a height direction of the box body (100). The battery module (200) includes a frame (2) and a cell group (1) accommodated within the frame (2). Each of all frames (2) is provided with a sub-channel (220), and sub-channels (220) of all frames (2) communicate with one another to form a module pressure relief channel (221), and ejecta generated during explosion of an explosion-proof valve of the cell group (1) is capable of flowing into the module pressure relief channel (221). The pressure relief system (400) is capable of communicating the module pressure relief channel (221) with an exterior of the box body (100).
Resumen de: EP4661184A1
A secondary battery according to an embodiment of the present disclosure may include: a housing having an accommodation space; and a venting portion disposed in the housing and openable by pressure of the accommodation space, and the venting portion may include: a venting cover having one surface facing the accommodation space; a notch portion formed in the venting cover; and a protrusion portion protruding toward the notch portion.
Resumen de: WO2024163472A1
A purification process for recycled graphite for use as anode material in Li-ion batteries includes a sequence of leaching and heat treatment followed by washing with deionized (DI) water and an acid wash. A graphite source results from a suitable process such as acid leaching of black mass from a batteiy recycling stream, where the leach removes a substantial portion of metal salts used for cathode materials. Impurities, most notably aluminum oxide and residual cathode materials, are often present in trace amounts in the graphite source. A sequence of heating (sintering) and pH adjusted washing further purifies the graphite into a modified, recycled graphite exceeding 99.5% purity for use in a recycled battery.
Resumen de: US2024313231A1
A method of making battery plates of pure lead battery grids for lead-acid battery manufacture is presented. The method has been shown to resolve issues that have long-persisted in the battery manufacture industry involving the use of pure lead material for battery grids. According to an implementation, several processes are performed in succession in order to make pure lead battery grids feasible in commercial and mass production, among them: a continuous casting process to produce battery grids of pure lead material, a compression rolling process of the cast pure lead battery grids, and a battery paste application process to the cast and rolled pure lead battery grids. The pure lead material of the continuous strip of pure lead battery grids can consist of lead (Pb) material in an amount that ranges approximately between 99.85 percent (%) to 99.999% of the overall constituent elements of the pure lead material.
Resumen de: CN120615223A
A method of manufacturing a free-standing electrode membrane for an energy storage device, the method comprising: preparing a first mixture comprising at least one electrode active material and at least one fibrillated binder, the first mixture having a total solids content of greater than 95% by weight; fibrillating the at least one fibrillar binder in the first mixture by subjecting the first mixture to a shear force; pressing the first mixture into a first self-supporting electrode film; chopping at least a portion of the first free-standing electrode membrane; preparing a second mixture comprising the chopped at least a portion of the first free-standing electrode membrane; subjecting the second mixture to a shear force; and pressing the second mixture into a second self-supporting electrode film. The first mixture may include at least a portion of a previously fabricated free-standing electrode film.
Resumen de: EP4660334A1
The present invention relates to a method for efficiently recovering valuable metals from end-of-life waste lithium batteries by dry molten smelting and, more particularly, to a method for recovering lithium by mixing ground or crushed waste lithium batteries with a flux including a Ca compound and a sulfur component and melting same at a high temperature of 1300°C or higher, and then obtaining a lithium-sulfide compound (Li2SO4) volatilizing therefrom.
Resumen de: EP4659824A1
The present specification discloses a composition, a fire extinguishing device, and a use thereof. The composition and the fire extinguishing device can be applied to a product with a possibility of abnormal heat generation, ignition, and/or explosion during drive, storage, and/or maintenance processes to effectively respond to the heat generation, ignition, and explosion. The composition and the fire extinguishing device can be applied, for example, to an article comprising a plurality of the products to respond to abnormal heat generation, explosion, and/or ignition occurring in any one product, and can prevent propagation of such heat generation, explosion, and/or ignition to other adjacent products. The composition and the fire extinguishing device also have excellent handleability and storage stability. The present specification also discloses a use of the composition and the fire extinguishing device.
Resumen de: WO2025224573A1
The invention relates to an electric cell (1) for an electrically-driven vehicle, the cell (1) comprising: - a housing (3) defining an interior volume (4) containing an electrolyte; and - at least one stack of electrodes comprising a plurality of electrodes separated from one another by a porous separator film, the at least one stack of electrodes being arranged in the housing (3), the cell (1) comprising a degassing device (2) arranged on the housing (3), which degassing device (2) comprises: - a first porous membrane located on the interior volume (4) side of the housing (3); and - a second porous membrane (6) that is separate from the first membrane and that is arranged facing the first membrane, the first membrane and second membrane (6) being arranged at a distance from one another.
Resumen de: EP4661167A1
A secondary battery (100) including a housing (110), an electrode assembly (120) disposed inside the housing (110), a pole (140), and an insulating member (150) is provided. The housing (110) includes an end wall (111) and a sidewall (112) surrounding the end wall (111). The pole (140) is fixed to the end wall (111) and electrically connected to the electrode assembly (120). The pole (140) includes a columnar part (142) passing through the pole hole (1111), and an inner flange (141) located inside the housing (110) and extending from the columnar part (142) towards the periphery of the end wall (111). The insulating member (150) is located on one side of the end wall (111) facing the interior of the housing (110). The insulating member (150) includes a first insulator (151) surrounding the columnar part (142) and a second insulator (152) surrounding the first insulator (151).
Resumen de: EP4661098A1
Disclosed are a positive electrode active material for an all-solid-state rechargeable battery, a preparation method thereof and a rechargeable lithium battery, the positive electrode active material which includes a first positive electrode active material including secondary particles including a lithium nickel-cobalt-aluminum-based composite oxide and formed by agglomerating a plurality of primary particles wherein at least a portion of the primary particles are oriented radially, and a buffer layer disposed on the surface of the secondary particles and including a lithium compound and a metal oxide; and a second positive electrode active material including secondary particles including a lithium nickel-cobalt-aluminum-manganese-based composite oxide and formed by agglomerating a plurality of primary particles, and a buffer layer disposed on the surface of the secondary particles and including a lithium compound and a metal oxide, wherein an average particle diameter of secondary particles of the first positive electrode active material is larger than an average particle diameter of the secondary particles of the second positive electrode active material.
Resumen de: EP4660928A1
The present invention relates to a method for determining the value of electric energy in consideration of a power generation source in an EV ecosystem and a device for performing same. The method for determining the value of electric energy in consideration of a power generation source in an EV ecosystem may comprise: a step in which an EV ecosystem management device determines the incentive of an EV power plant on the basis of a power generation source of the EV power plant; and a step in which the EV ecosystem management device determines the carbon emission right to be allocated to the EV power plant on the basis of the power generation source of the EV power plant.
Resumen de: EP4660243A1
A curable composition comprising an epoxy resin, a thermally conductive filler, an amine compound (X) having two or more amino groups, and a polyfunctional acrylate compound, the amine compound (X) having a viscosity of 20 Pa·s or less measured at 25°C and 10 rpm using an E-type viscometer or having an oxyalkylene structure, a content of the amine compound (X) with respect to a total amount of resin components being 15 mass% or more and 55 mass% or less.
Resumen de: EP4660242A1
A thermally conductive resin composition comprising an epoxy resin, an amine curing agent having three or more active hydrogen atoms of an amino group, and a thermally conductive filler, and having an equivalent ratio of the active hydrogen atoms of the amino group to an epoxy group of more than 1 and less than 2.7.
Resumen de: EP4660275A1
The curable thermally conductive adhesive of the present invention comprises a curable binder and a thermally conductive filler, wherein a cured product obtained by curing the curable thermally conductive adhesive at 60°C for 24 hours has an adhesion of 0.3 MPa or more, and the following expression (1) is satisfied when G' represents a storage elastic modulus, tan δ represents a loss tangent, and the storage elastic modulus and the loss tangent are obtained by subjecting the cured product to dynamic viscoelasticity measurement under conditions having a temperature of 25°C and a frequency of 0.1 Hz. The present invention can provide a curable thermally conductive adhesive capable of forming a thermally conductive member that has strong adhesion to an adherend and unlikely peels off from the adherend even after undergoing thermal cycling between low and high temperatures. log10G′<4.29×tanδ+6
Resumen de: EP4661144A1
One or more markers (15, 16) are produced on at least one of the tabs (4, 7) of the electrodes (2, 5) which form the basic components of the battery. The electrodes include at least one pair of a first electrode (2) and a second electrode (5), each having a coated foil portion (3, 6) and a non-coated tab (4, 7). The markers can be indicative of technical and/or reference information related to the electrode to which the marked tab is attached, or of information regarding required manipulations of the electrode to which the marked tab is attached, wherein the method includes reading a marker on the marked tab and performing a manipulation of the electrode based on information derived from said marker.
Resumen de: EP4660383A1
A construction machine is provided that is capable of charging an electricity storage device with both regenerative electric power from an electrically driven motor and electric power from an external power supply, and restraining the electricity storage device from being deteriorated. An excavator includes an electrically driven motor, an inverter for controlling the electrically driven motor, a controller for controlling the inverter, and an electricity storage device for being charged with electric power from an external power supply. The inverter controls electric power from the external power supply or electric power from the electricity storage device to cause the electrically driven motor to be driven and, upon deceleration of the electrically driven motor, to cause regenerative electric power from the electrically driven motor to be supplied to the electricity storage device to charge the electricity storage device. The controller computes an upper limit value for a regenerative current from the electrically driven motor by subtracting an output current from the external power supply from an upper limit value for a charging current for the electricity storage device, and sends a command representing the upper limit value to the inverter, when the electric power from the external power supply is supplied to the electricity storage device and the electrically driven motor is decelerated.
Resumen de: EP4661239A1
A charging and discharging device and a charging and discharging method are provided. The charging and discharging device includes a rack, a pressing assembly, a first driving assembly, a probe mechanism and a supporting plate. The pressing assembly includes a negative pressure mechanism or an upper pressing structure. The supporting plate is provided between the pressing assembly and the probe mechanism in a first direction. After the first driving assembly drives the pressing assembly to move in the first direction and abut against a battery in a tray, the pressing assembly and the supporting plate move in the first direction so that the battery in the tray is engaged with the probe mechanism. The first driving assembly drives the pressing assembly to move toward the tray, the pressing assembly abuts against the battery, and the first driving assembly further drives the pressing assembly to move, so that the pressing assembly and the tray move toward the probe mechanism, and the battery abuts against the probe mechanism.
Resumen de: EP4661093A1
A positive electrode active material for a rechargeable lithium battery, a method for preparing the positive electrode active material, and a rechargeable lithium battery including the positive electrode active material are provided. The positive electrode active material includes first particles including a compound of Li<sub>a1</sub>Mn<sub>z1</sub>Fe<sub>x1</sub>Ti<sub>y1</sub>B<sup>1</sup><sub>b1</sub>PO<sub>4-c1</sub> and having a first average particle diameter, and second particles including a compound of Li<sub>a2</sub>Ni<sub>z2</sub>Mn<sub>x2</sub>C<sup>1</sup><sub>y2</sub>O<sub>c2</sub> and having a second average particle diameter. The amount of the first particles is about 80 wt% to about 97.5 wt% on the basis of 100 wt% of a sum of the amount of the first particles and the amount of the second particles.
Nº publicación: EP4660273A1 10/12/2025
Solicitante:
SEKISUI CHEMICAL CO LTD [JP]
Sekisui Chemical Co., Ltd
Resumen de: EP4660273A1
A curable thermally conductive adhesive comprising a curable binder and a thermally conductive filler, wherein a cured product of the curable thermally conductive adhesive has a mass loss rate of 1.5% or less after a thermal cycling test wherein a cycle consisting of 3 hours at -40°C and 3 hours at 80°C is repeated 20 times, and an elastic modulus at 80°C of 1.2×10<sup>8</sup> Pa or less.
BOPI
Sede Electrónica
