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1653
resultados
Última actualización
13/03/2026 [07:13:00]
Resultados 100 a 125 de 1653
Resumen de: EP4708402A1
The present application discloses a positive electrode plate and a preparation method therefor, a positive electrode plate, a battery and an electrical apparatus. The positive electrode plate comprises a positive electrode current collector, and at least one side of the positive electrode plate away from the positive electrode current collector comprises a polymer and an organic solvent, wherein the organic solvent is located in the polymer, and the electrochemical oxidation window of the organic solvent is greater than 4 V
Resumen de: CN121194946A
The present invention relates to a resource-saving method for producing an alkali metal-containing positive electrode active material by using condensed water from a precursor without using additional purified water. The invention also relates to the purification of alkali metal-containing wash water produced during the production of positive electrode active materials. According to the invention, the alkali metal precursor recovered in the production process is returned to the production process.
Resumen de: EP4708401A1
This application provides a negative electrode and a preparation method therefor, a battery cell containing the same, a battery, and an electric apparatus, where the negative electrode includes a negative electrode current collector and a coating disposed on at least one surface of the negative electrode current collector, the coating includes a flexible carbon material, the flexible carbon material includes micropores with a pore diameter less than or equal to 0.8 nm, a pore volume of the micropores with a pore diameter less than or equal to 0.8 nm is denoted as Vmic, a pore volume of the flexible carbon material is denoted as Vtotal, both in units of cm<3>/g, and Vmic:Vtotal≥65:100.
Resumen de: EP4708490A1
The present disclosure is a housing stacking energy storage system. In the present disclosure, a first housing 10 and a second housing 20 having a predetermined size are stacked, and a rack 30 is installed in a first inner space 11 of the first housing 10 and a second inner space 21 of the second housing 20 to mount a plurality of battery packs 32. The first inner space 11 and the second inner space 21 communicate with each other to form one space, and a control unit 46, a fire extinguishing system 47 and a spray system 48 are installed therein. According to the present disclosure, it is possible to firmly install the energy storage system having a relatively large capacity in a specific installation area.
Resumen de: EP4708524A1
A secondary battery includes an electrode assembly having a first electrode plate, a second electrode plate, and a separator between the first electrode plate and the second electrode plate. A case accommodates the electrode assembly and includes a safety vent. A foaming agent is provided inside of the case, with the foaming agent being configured to generate gas for opening the safety vent.
Resumen de: EP4708418A1
An apparatus and a method for folding sides of a pouch-type battery and a die for the same are disclosed. The apparatus for folding sides of a pouch-type battery includes a die including a folding formation space including an inlet through which a side of a pouch-type battery enters, an outlet through which the side of the pouch-type battery exits, and a side opening formed on one side of the die to guide the side of the pouch-type battery to pass therethrough, and a transfer unit that transfers the pouch-type battery along a longitudinal direction of the die. A space between the inlet and the outlet of the folding formation space is formed so that the side of the pouch-shaped battery having entered the inlet is gradually folded while moving and finally the outlet has a final folding shape.
Resumen de: EP4707837A1
Disclosed is a battery diagnosis apparatus and a battery diagnosis method. The battery diagnosis apparatus includes a processor configured to control a stimulation application device to intermittently apply a second electric stimulation greater than a first electric stimulation to a target cell during a state change period, and a communication unit configured to obtain current time series data during the state change period and voltage time series data representing a change history of a full-cell voltage of the target cell during rest periods of the second electric stimulation applied in the state change period. The processor generates a measurement full-cell profile based on the current time series data and the voltage time series data, and analyzes the measurement full-cell profile to estimate a negative electrode loading amount.
Resumen de: EP4707052A1
Embodiments of the present disclosure provide an energy storage charging pile thermal management system and an energy storage charging pile. The system includes: a first liquid cooling loop in which a first cooling pipeline passes through a battery and a heat exchange module, where a first coolant in the first cooling pipeline is an insulating liquid or a non-insulating liquid; and a second liquid cooling loop in which a second cooling pipeline passes through a charging module and the heat exchange module, where a second coolant in the second cooling pipeline is an insulating liquid. The first cooling pipeline and the second cooling pipeline perform heat exchange through the heat exchange module. A charging converter is electrically connected to the battery, and a charging gun is electrically connected to the charging converter through a charging wiring harness. The charging module includes the charging gun and the charging wiring harness, the charging gun being electrically connected to the battery through the charging wiring harness; and the second cooling pipeline is disposed along the charging wiring harness and passes through the charging gun. In this way, in the event of coolant leakage caused by damage to the charging wiring harness, the use of insulating second coolant for cooling can reduce the occurrence of electrical leakage.
Resumen de: EP4707834A1
A battery diagnosis apparatus includes a voltage obtaining unit configured to obtain voltage information of each of a plurality of battery units included in each of a plurality of vehicles and a controller configured to calculate a cumulative voltage variance of each of the plurality of battery units, based on the voltage information, calculate at least one deviation that is deviation of cumulative voltage variances for each of the plurality of vehicles, and manage the plurality of battery units based on a distribution of the at least one deviation of the plurality of vehicles.
Resumen de: EP4708379A1
A positive electrode active material is provide, the positive electrode active material including a first positive electrode active material including a lithium iron phosphate-based compound; and a second positive electrode active material including lithium nickel-based composite oxide; wherein the second positive electrode active material is included in an amount of ≥ 1 wt% to ≤ 15 wt% based on 100 wt% of the first positive electrode active material and second positive electrode active material. The positive electrode active material, the positive electrode including the same, and the rechargeable lithium battery according to some example embodiments may achieve high capacity and excellent or suitable stability.
Resumen de: EP4708517A1
A sensing assembly includes a plurality of busbars and a plurality of sensing frames arranged along a first direction to support the plurality of busbars. The sensing frames includes a middle sensing frame and an outer sensing frame disposed on a first side of the middle sensing frame along the first direction. The middle sensing frame includes: a first peripheral surface facing toward one side in the first direction; a second peripheral surface disposed on an opposite side to the first peripheral surface and facing toward an opposite side in the first direction; a support surface connected with the second peripheral surface and facing toward one side in a second direction crossing the first direction; a guide protrusion protruding from the first peripheral surface toward the one side in the first direction; and a guide groove disposed where the support surface and the second peripheral surface are connected.
Resumen de: EP4708618A1
A battery management apparatus includes a measuring unit including at least one sensor, the measuring unit configured to measure a cell voltage of each of a plurality of battery cells in a battery module, and a processor configured to adjust a charging threshold voltage or a discharging threshold voltage based on a difference in cell voltage between the plurality of battery cells and a current state of charge (SOC) of the battery module if charging or discharging the battery module.
Resumen de: EP4708447A1
A battery ECU (300) calculates a gas generation amount (Vgo) generated in a case (S12), and calculates a gas permeation amount (Vgp) corresponding to an amount of leakage of the gas out of the case (S13). The battery ECU calculates an internal gas amount (Vg) that is a gas amount inside the battery, by subtracting the gas permeation amount (Vgp) from the gas generation amount (Vgo) (S14). Further, the battery ECU calculates an electrolyte solution permeation amount (Vep) corresponding to an amount of leakage of an electrolyte solution out of the case (S15), and calculates an internal void volume (Vc) that is a void volume inside the battery, by adding the electrolyte solution permeation amount (Vep) and an initial void volume (Vc0) (S16). Then, the battery ECU calculates a battery internal pressure (P) that is a pressure in the case, based on the internal gas amount (Vg) and the internal void volume (Vc) (S17).
Resumen de: EP4708393A1
An anode active material for a lithium secondary battery based on some embodiments of the disclosed technology includes composite particles that include: carbon-based particles including pores; and a silicon-containing coating formed on a surface of the carbon-based particles, wherein a weight increase start temperature of the composite particle, measured by thermogravimetric analysis (TGA) at a heating rate of 10 °C/min, is from 440 °C to 580 °C.
Resumen de: EP4707031A1
A battery system includes: a battery stack (150); a housing (101) that houses the battery stack (150) and that is installed in a vehicle; a first thermistor (102 to 112) that detects a first temperature of the housing (101); a second thermistor (114 to 120) that detects a second temperature in the housing (101); and a battery ECU (304) that compares a result of detection by the first thermistor (102 to 112) with a result of detection by the second thermistor (114 to 120) to determine whether a temperature increase in the battery stack is due to a change in an external environment of a battery pack (100) or due to a malfunction in a battery cell.
Resumen de: EP4708449A1
The present disclosure relates to a battery box having a structure that provides fire safety and enables multi-layer stacking. The battery box according to the present disclosure includes a first enclosure configured to accommodate a plurality of battery modules therein, a deflagration panel configured to rupture to allow flammable to be discharged from the first enclosure, when the flammable gas is generated in the first enclosure and pressure inside the first enclosure increases to a value greater than or equal to a threshold pressure, a first duct which has a lower end connected to the deflagration panel and an upper end connected to an exhaust port spaced a distance apart from the battery box and which guides the flammable gas discharged from the deflagration panel to the exhaust port, and a stacking support positioned on the first enclosure and configured to support a second enclosure stacked on the first enclosure.
Resumen de: EP4708498A2
A battery pack includes a plurality of battery cells arranged adjacent to one another, ribs arranged respectively between battery cells of the plurality of battery cells, a frame connected to opposite end portions of the ribs and accommodating the plurality of battery cells together with the ribs, and an upper label attached to an upper surface of the frame, and the upper label includes at least one opening that is recessed from the frame in a direction toward the ribs, and the ribs each include a first region overlapping with the upper label, a second region located to correspond to the opening and having a thickness greater than a thickness of the first region, and a connection portion connecting the first region and the second region to each other.
Resumen de: EP4708492A1
A battery rack according to an embodiment of the present disclosure is for housing a battery, the battery rack comprising: a first sub-rack that includes a first column that is vertically erected, and includes a plurality of battery housing spaces formed along the first column, and a second sub-rack that includes a second column that is vertically erected, and includes a plurality of battery housing spaces formed along the second column, wherein the first sub-rack and the second sub-rack are arranged along the longitudinal direction of the battery rack, and wherein the first sub-rack and the second sub-rack have a structure with an opened upper end.
Resumen de: EP4708521A1
A battery cell (20), a battery, and an electric apparatus are provided. The battery cell (20) includes: a housing (22), where the housing (22) forms an accommodating space; an electrode assembly (21), where the electrode assembly (21) is disposed within the accommodating space; a top cover (23), where the top cover (23) is connected to the housing (22) and covers the accommodating space, the top cover (23) is provided with a protrusion (231), the protrusion (231) is located within the accommodating space, and the protrusion (231) is configured to shield between the electrode assembly (21) and at least a portion of the connection at which the top cover (23) is connected to the housing (22). By providing the protrusion (231) on the top cover (23), cooperation between the protrusion (231) and the housing (22) can block laser or falling particles during welding, and prevent laser or particles from entering the accommodating space and thus causing damage to the electrode assembly (21).
Resumen de: EP4708495A1
An energy storage device includes a first housing (1), provided with a first cavity (1s), the first housing (1) including a first abutting member (101) located in the first cavity (1s); a second housing (2), provided with a second cavity (2s) and a second abutting member (201), the second abutting member (201) being connected to the second housing (2); and a sealing element (3), located in the first cavity (1s), the sealing element (3) being connected between the first abutting member (101) and the second abutting member (201), where the first cavity (1s) and the second cavity (2s) communicate to form a first space (12s), and the first space (12s) is configured to accommodate a cell assembly and/or an electrical assembly (4).
Resumen de: EP4707037A1
Die Erfindung betrifft ein Verfahren zum Heizen einer Fahrzeugbatterie (51) eines Kraftfahrzeugs (50), wobei das Kraftfahrzeug (50) einen Pulswechselrichter (2) und eine Elektromaschine (52) aufweist, wobei die Elektromaschine (52) als fremderregte Synchronmaschine (53) ausgebildet ist, wobei einer Drehzahl (n) der Elektromaschine (52) mittels einer Zuordnungsvorschrift (4) ein magnetischer Fluss (ψ) zugeordnet wird, wobei dem magnetischen Fluss (ψ) und einem Drehmoment (T) durch Zuordnungsvorschriften (5, 6) ein Längsstrom (id) und ein Querstrom (iq) zugeordnet wird, wobei ein periodischer Zusatzfluss (Δz) erzeugt wird, der nur der Zuordnungsvorschrift (6) für den Querstrom (iq) zugeführt wird, wobei die Modulation des periodischen Zusatzflusses (ψz) in einem Bereich (S) eines iq-id-Maschinenkennfeldes stattfindet, in dem die Linien konstanten Drehmomentes (T) nahezu vertikal verlaufen, sowie eine Anordnung (1).
Resumen de: EP4708440A1
An electrolyte includes a compound of formula Iand a compound of formula IIBased on a mass of the electrolyte, a mass percentage A of the compound of formula I satisfies 0.01% ≤ A ≤ 70%, and a mass percentage B of the compound of formula II satisfies 2.0% ≤ B ≤ 20%.
Resumen de: EP4708421A1
A secondary battery (100), a battery module (10), and an electronic apparatus (1) are provided. The secondary battery (100) includes a casing (110) and an electrode assembly (120). The casing (110) includes an end wall (111) and a side wall (112) surrounding the end wall (111), and an axis of the casing (110) is a first axis (114). The electrode assembly (120) accommodated in the casing (110) includes a positive terminal sheet (121), a negative terminal sheet (123), and a separator (122) stacked and wound to form a wound structure (126). A number of turns of the negative terminal sheet (123) is greater than 40 turns, and an axis of the wound structure (126) is a second axis (1261).
Resumen de: EP4708405A1
Problem To reduce insufficient welding of resins at the time of manufacturing of a battery cell.Means for Solution A method of manufacturing a battery cell 1 includes: layering electrode sheets 3 and 4 in a layering direction L, the electrode sheets 3 and 4 each having an electrode 32 or 42 placed in a container 10 and a current collector 31 or 41 that is connected to the electrode in the container and protrudes to the outside through an opening 12 or 13 of the container; applying pressure and heat to a resin 51 placed between the current collector and the current collector layered on each other from outer sides toward a center in the layering direction L; causing the resin being melted to flow through a through hole 34 formed in the current collector in the layering direction L and fill the through hole; and welding the resin between the current collector and the current collector and sealing the opening of the container.
Nº publicación: EP4708417A1 11/03/2026
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Resumen de: EP4708417A1
Disclosed is a battery cell pressurizing device, which includes a plurality of mounting tables respectively configured so that at least one battery cell is mounted thereon, the plurality of mounting tables being arranged side by side in one direction; a pressurizing unit configured to pressurize the battery cells mounted on the plurality of mounting tables by pressing the plurality of mounting tables in a direction in which the plurality of mounting tables come into close contact with each other; and a plurality of pressure-sensitive sensors distributed on the plurality of mounting tables and configured to detect pressure applied to the battery cells mounted on each mounting table separately for each battery cell or to detect the pressure separately for different parts of each battery cell.
BOPI
Sede Electrónica
