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882
resultados
Última actualización
20/12/2025 [07:08:00]
Resultados 800 a 825 de 882
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: 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: EP4661150A1
Die Erfindung betrifft eine Batterieüberwachungseinrichtung (36) für eine Batterie (10), wobei die Batterie (10) mehrere Batteriezellen (12) aufweist, wobei die Batterieüberwachungseinrichtung (36) zwischen benachbarten Batteriezellen (12) zumindest ein flächiges Messelement (38) aufweist, das derart zwischen zwei benachbarten Batteriezellen (12) angeordnet werden kann, dass das Messelement (38) eine Formänderung zumindest einer der Batteriezellen (12) erfassen kann, wobei das Messelement (38) eine Verformung, und/oder eine Kraft und/oder einen Druck, der auf das Messelement (38) wirkt, erfassen kann, und mit einer Auswerteschaltung (40), die mit dem zumindest einen Messelement (38) verbunden ist, wobei das Messelement (38) einen auf der erfassten Verformung, Kraft und/oder dem erfassten Druck basierenden Messwert oder ein Signal an die Auswerteschaltung (40) ausgeben kann, und die Auswerteschaltung (40) den zumindest einen Messwert oder das Signal mit einem Grenzwert für diesen Messwert oder das Signal vergleichen und bei Überschreiten zumindest eines Grenzwertes ein Fehlersignal ausgeben kann.Die Erfindung betrifft des Weiteren eine Batterie (10) mit einer solchen Batterieüberwachungseinrichtung (36)
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: 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.
Resumen de: EP4660272A1
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 tensile storage elastic modulus of 2.0×10<8> Pa or less and a tanδ of 0.05 or more and 0.6 or less measured by dynamic viscoelasticity measurement at 10 Hz at 25°C.
Resumen de: EP4660650A1
An operating method of a battery management apparatus according to an embodiment disclosed herein includes measuring a voltage of each of a plurality of battery cells, calculating a first deviation, which is a deviation between a long moving average and a short moving average of a battery cell voltage of each of the plurality of battery cells, calculating a second deviation, which is a deviation between a long moving average and a short moving average of an average voltage of the plurality of battery cells, and calculating a first diagnosis deviation between the first deviation and the second deviation for each of the plurality of battery cells, setting a diagnosis battery cell by diagnosing at least one of the plurality of battery cells based on the first diagnosis deviation of each of the plurality of battery cells, and determining whether the diagnosis battery cell is diagnosed normally, by comparing a first diagnosis deviation of a battery cell having a maximum value among first diagnosis deviations of battery cells different from the diagnosis battery cell with the first diagnosis deviation of the diagnosis battery cell.
Resumen de: EP4661136A1
This application relates to a composite solid electrolyte and a preparation method thereof, a solid-state battery, and an electric apparatus (5), where components of the composite solid electrolyte include a solid electrolyte substrate and a phase-transformation toughening agent dispersed in the solid electrolyte substrate, where the phase-transformation toughening agent is capable of phase transformation under the action of an external force.
Resumen de: EP4659999A1
Die Erfindung betrifft Verfahren zum Entladen einer Batterieeinheit, umfassend: Durchführen (220) eines Entladevorgangs der Batterieeinheit; Bestimmen (230) eines zeitlichen Verlaufs einer Temperatur der Batterieeinheit während eines vorgegebenen Zeitintervalls des Entladevorgangs, insbesondere zu Beginn des Entladevorgangs; Bestimmen (250) eines Wendepunkts des zeitlichen Verlaufs der Temperatur in dem vorgegebenen Zeitintervall; Bestimmen (260) eines zu erwartenden Maximalwerts der Temperatur der Batterieeinheit abhängig von dem bestimmten Wendepunkt; Durchführen (270) des Entladevorgangs nach dem vorgegebenen Zeitintervall abhängig von dem bestimmten, zu erwartenden Maximalwert, insbesondere Vorgeben einer Stromstärke des Entladevorgangs nach dem vorgegebenen Zeitintervall abhängig von dem bestimmten zu erwartenden Maximalwert.
Resumen de: EP4661157A1
This application discloses a cell balancing device and method. The method includes: obtaining a first minimum cell voltage value and a first maximum cell voltage value of a to-be-balanced battery module in a latest full-charging operation; determining a first charge capacity of a first target cell in the battery module in a corresponding first time period in response to a first charging operation performed by the battery module; and updating a balancing capacity of the first target cell based on the first charge capacity. The first target cell is a cell with a voltage value greater than or equal to the first minimum cell voltage value. The first time period corresponding to the first target cell is a period of time that begins when the voltage value of the first target cell reaches the first minimum cell voltage value for a first time and that ends when the first charging operation of the battery module is ended.
Resumen de: EP4661092A2
A positive electrode active material for a rechargeable battery comprises: (1) first particles comprising a compound having an olivine structure, (2) second particles comprising a compound having a spinel structure, (3) third particles having a layered structure, and (4) fourth particles. An amount of the third particles is about 10 parts by weight to about 20 parts by weight based on 100 parts by weight of the positive electrode active material. Also disclosed are positive electrodes including the positive electrode active materials, and recharageable lithum batteries including the positive electrode active materials.
Resumen de: EP4661160A1
Disclosed is a battery pack, which includes a cell array structure including a plurality of battery cells and a plurality of cooling tubes provided between the plurality of battery cells; a pack case configured to accommodate the cell array structure; and a cooling pipe unit provided between the plurality of cooling tubes within the pack case along a stacking direction of the plurality of cooling tubes to connect cooling tubes facing each other in the stacking direction to enable communication.
Resumen de: EP4661187A1
Disclosed is a battery pack, which includes a plurality of battery cells having a venting portion, and a pack frame configured to accommodate the plurality of battery cells and having a venting guide portion in an area corresponding to the venting portion of the plurality of battery cells.
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: GB2641688A
A method of manufacturing a carbon material for use as a battery electrode, comprising: providing a polysaccharide/protein mixture comprising at least one polysaccharide component and at least one protein component; and pyrolysing the polysaccharide/protein mixture.
Resumen de: EP4661129A1
The disclosure relates to a battery cell. More specifically, the disclosure relates to a battery cell minimizing a connection space between a non-coating portion forming an electrode assembly (100) and a current collector (220). The battery cell according to the disclosure can maximize the use efficiency of an internal space by minimizing a connection space between a non-coating portion of a jelly roll-shaped electrode assembly and a current collector (220). The battery cell according to the disclosure can increase a capacity by reducing a space loss inside a case (400) accommodating an electrode assembly (100). The battery cell according to the disclosure arranges a welding face of a current collector (220) perpendicular to a winding axis direction of an electrode assembly (100), and thus can reduce damage to the electrode assembly (100) when the battery cell is crushed and can improve safety.
Resumen de: EP4660149A1
A cathode active material for a lithium secondary battery according to embodiments of the present disclosure includes lithium-metal oxide particles having a sphericity of 0.96 or less and an elongation of 0.25 to 0.5. The elongation is calculated as (1 - b/a). Here, a denotes the length of the major axis of the lithium-metal oxide particle in a cross-sectional image of the lithium-metal oxide particles observed using SEM, and b denotes the length of the minor axis of the lithium-metal oxide particle in the cross-sectional SEM image of the lithium-metal oxide particles.
Resumen de: EP4661089A2
A battery substrate applied to a secondary battery, comprising: a first substrate (103) comprising a resin; an adhesive layer (102) having one surface adhered to the first substrate; a particle layer (601) comprising at least one selected from the group consisting of a solid electrolyte, an active material and a current collector material and disposed on the other surface opposite to the one surface of the adhesive layer (102) ; and a second substrate (101) disposed in a region of the other surface where the particle layer (601) is not disposed, wherein the second substrate (101) is disposed so as to support a periphery of a region where the particle layer (601) is disposed in at least two directions.
Resumen de: EP4661165A2
Disclosed herein relates to a prismatic secondary battery including: an electrode assembly including a first electrode lead part formed in a first side direction and a second electrode lead part formed in a second side direction opposite the first side direction; a lower case having an open upper surface and housing the electrode assembly therein; and an upper case covering the open upper surface of the lower case, wherein the upper case includes: a first terminal part bent from a top surface of the upper case corresponding to the open upper surface of the lower case and extending downwardly in the first side direction; and a second terminal part bent from the top surface of the upper case and extending downwardly in the second side direction, wherein the first electrode lead part is electrically connected to the first terminal part, and the second electrode lead part is electrically connected to the second terminal part.
Nº publicación: EP4661097A2 10/12/2025
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Resumen de: EP4661097A2
The present invention relates to a lithium secondary battery manufactured by forming a negative electrode free battery and then forming a lithium metal on the negative electrode current collector by charging.In the lithium secondary battery, since lithium metal is formed on the negative electrode current collector in the state of being blocked with the atmosphere, the generation of the conventional surface oxide layer (native layer) formed on the negative electrode does not occur inherently, thereby preventing the reduction of the efficiency and lifetime characteristics of the battery.
BOPI
Sede Electrónica
