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1408
resultados
Última actualización
17/12/2025 [07:14:00]
Resultados 1250 a 1275 de 1408
Resumen de: EP4657545A1
The present invention relates to a negative electrode for a lithium secondary battery, and a manufacturing method therefor. The negative electrode for a lithium secondary battery comprises transition metal particles including iron and/or nickel in a carbon-based negative electrode active material, wherein the concentration ratio of iron to nickel is controlled to satisfy a predetermined range. Therefore, the negative electrode has excellent lifespan characteristics in high-temperature conditions and low electrical resistance in high-rate conditions. In addition, a lithium secondary battery comprising same can have excellent high-temperature lifespan characteristics and high-rate charge/discharge performance.
Resumen de: EP4657090A1
A battery management system according to the present disclosure includes: memory; and a controller configured to execute a parameter acquisition procedure to determine respective latest values of a first parameter, a second parameter, and a third parameter associated with a current state of a battery. The controller is further configured to: call a parameter map from the memory, the parameter map recording a correspondence relationship of the third parameter relative to the first and second parameters; and execute a map update procedure to update the parameter map based on the respective latest values of the first, second, and third parameters.
Resumen de: EP4657638A1
A secondary battery includes a case with an opening therein, an electrode assembly accommodated in the case, a cap plate bonded to the opening of the case, a degassing device bonded to a gas discharge hole in one of the case and the cap plate to discharge gas from inside the case, wherein the degassing device includes a central portion exposed to an outside of the case through the gas discharge hole, a bonding portion bonded to a circumferential periphery of the gas discharge hole, a peripheral portion that is a surface for connecting the bonding portion and the central portion, a notch in the peripheral portion along an outline of the bonding portion, a main hinge on a line defined by the notch, and one or more sub-hinges parallel to the main hinge at one or more locations spaced apart from the main hinge.
Resumen de: EP4657621A1
A secondary battery including: a case having an opening at one end portion; an electrode assembly accommodated in the case; a current collector electrically connected to the electrode assembly; and a terminal electrically connected to the current collector. The current collector includes a conductive boss connected to the terminal, and the conductive boss includes a multi-stage shape portion protruding toward the terminal. The terminal has a through-hole into which the conductive boss is inserted and which has a shape corresponding to the multi-stage shape portion.
Resumen de: EP4657644A1
Disclosed is an electrode assembly, a cylindrical battery, and a battery pack and a vehicle including the same. The electrode assembly includes a first electrode, a second electrode, and a separator interposed therebetween, which are wound around one axis to define a core and an outer circumference. At least one of the first electrode and the second electrode includes an uncoated portion extending in a winding direction along a long side end thereof. The uncoated portion includes a plurality of segments separated by cut grooves formed along the winding direction and independently bendable. The plurality of segments are bent toward the core to form a bending surface area at one end of the electrode assembly. At least some of the plurality of segments include a folded end portion.
Resumen de: EP4657582A1
The present invention relates to a lithium secondary battery, a battery module, and a battery pack. The lithium secondary battery comprises: a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; a separator disposed between the positive electrode and the negative electrode; and an electrolyte, wherein the positive electrode active material includes a lithium composite transition metal compound containing nickel (Ni), cobalt (Co), and manganese (Mn), the lithium composite transition metal compound contains single particles, the negative electrode active material includes a silicon oxide, and the grain size of Si in the silicon oxide is at most 10% of the grain size of the lithium composite transition metal compound.
Resumen de: EP4657599A1
The present disclosure provides an equalization control method and apparatus for a power battery, vehicle, and storage medium, the method includes: determining battery cells to be equalized that meet an equalization enabling condition in a battery pack; determining a target battery cell from the battery cells to be equalized; adjusting a number of the battery cells to be equalized based on the temperature of an equalization board area where the target battery cell is located and a position of the target battery cell in the battery pack, to obtain a target battery cell to be equalized; performing equalization on the target battery cell to be equalized.
Resumen de: EP4657631A1
The disclosure provides a battery pack case (100) and a battery pack. The battery pack case (100) includes a frame (110), a bottom plate (120), and a mounting assembly (130); the bottom plate (120) is disposed facing the frame (110) and provided with a through hole (1200) and a mounting portion (121); the mounting assembly (130) includes a first connecting member (131) connected to the frame (110) and a limiting member (132), the first connecting member (131) includes an abutting surface (1311), the limiting member (132) includes a first abutting portion (1322) and a limiting portion (1323) and abuts against the abutting surface (1311); and the mounting portion (121) is disposed between the limiting portion (1323) and the abutting surface (1311), and a distance between the limiting portion (1323) and the abutting surface (1311) is greater than or equal to a thickness of the mounting portion (121).
Resumen de: EP4657007A1
A battery cell thickness measuring device related to one example of the present invention comprises a first pressurizing roller installed at a first fixed position on a transfer part, contacting a battery cell when the battery cell during transfer passes the first fixed position, and pressurizing the battery cell in the thickness direction of the battery cell, a first pressure-sensing film wound around the first pressurizing roller and provided to measure the pressure received from the battery cell while the first pressurizing roller pressurizes the battery cell, and a control part calculating the thickness of the battery cell based on the pressure measured by the first pressure-sensing film.
Resumen de: EP4657571A1
A secondary battery and an electric apparatus including such secondary battery are provided. The secondary battery includes a negative electrode plate. The negative electrode plate includes a negative electrode current collector and a negative electrode film layer disposed on at least one surface of the negative electrode current collector, where the negative electrode film layer includes an additive capable of undergoing a nucleophilic reaction with a cyclic carbonate compound. The secondary battery exhibits high storage performance.
Resumen de: EP4657633A1
A battery and an electrical apparatus are provided, which belong to the field of battery technologies. The battery includes: a box body having a cavity; a plurality of battery cell groups accommodated in the cavity, the battery cell group each including a plurality of arranged battery cells; a plurality of support plates, the support plates being mounted in the cavity, the plurality of support plates being spaced apart from each other, and the support plates being metal plates, where the battery cell groups are mounted on the support plates such that the support plates support the plurality of battery cells, and the support plates each support at least one of the battery cell groups; and connection plates, the connection plates being disposed between a side of the support plates facing away from the battery cell groups and the box body, and the connection plates being insulating members and being respectively connected to the support plates and the box body.
Resumen de: EP4657632A1
The present application provides a battery and an electrical apparatus and relates to the technical field of batteries. The battery includes: a box having a cavity; a battery cell group accommodated in the cavity, the battery cell group including a plurality of arranged battery cells; a support plate mounted in the cavity, the battery cell group being mounted on the support plate so that the support plate supports the plurality of battery cells, and the support plate is insulated from the box.
Resumen de: EP4657613A1
This application pertains to the field of battery (100) technology and provides a battery cell (10), a battery (100), and an electric apparatus. The electric apparatus includes the battery (100), where the battery (100) includes a battery cell (10), and the battery cell (10) includes an electrode assembly (11), a first electrode terminal (13a), a first adapter (14a), and a heat-insulating structure (15). The electrode assembly (11) includes a body portion (111) and a first tab (112a) provided on the body portion (111). The first adapter (14a) is conductively connected to the first tab (112a) and the first electrode terminal (13a). At least a portion of the heat-insulating structure (15) is provided on a side of the first adapter (14a) facing the body portion (111), so that the first adapter (14a) can be isolated from the body portion (111), mitigating the issue of contact between the first adapter (14a) and the body portion (111), thereby mitigating the issue of the first adapter (14a) scorching or melting a separator of the body portion (111) and causing a short circuit in the electrode assembly (11).
Resumen de: EP4657706A1
A battery management apparatus according to an embodiment disclosed herein includes an information obtaining unit configured to measure a cell current of each of a plurality of battery cells and a controller configured to calculate an available capacity of each of the plurality of battery cells, based on the cell current, extract a reference battery cell having a minimum available capacity among available capacities of the plurality of battery cells and set the minimum available capacity as a reference capacity, set a reference depth of discharge (DOD) that is a DOD value set in a random DOD range, calculate a first reference voltage corresponding to the reference DOD of the reference battery cell, and perform balancing on each of the plurality of battery cells based on the first reference voltage.
Resumen de: CN120390761A
The present invention relates to a two-component composition consisting of a first component and a second component; wherein the first component comprises:-at least one polyol having an average OH functionality of at least 2; -at least one first catalyst for catalyzing a reaction between a hydroxyl group and an isocyanate group; at least one second catalyst for catalyzing a trimerization reaction of isocyanate groups; -optionally, water; preferably, at least one foam stabilizer; and the second component comprises:-at least one oligomeric or polymeric polyisocyanate; preferably, at least one blowing agent; wherein the second catalyst is a trialkylphosphine compound; and wherein the molar ratio of all NCO groups in the two-component composition to all OH groups in the two-component composition is greater than 1.1, preferably greater than 1.3. The two-component composition is highly suitable as a potting material for producing structural battery packs using battery cells to vehicle body designs.
Resumen de: WO2024156822A1
The invention relates to a process for producing a dry film, a system for producing a dry film, a dry film and a battery containing the dry film. The process and the system are characterised in that at least two processing devices are used which are arranged in a direction perpendicular to a carrier roller rotational axis, in each case with respect to an outer segment of the carrier roller, wherein the at least two processing devices are suitable for removing regions of the dry film which are mounted on the carrier roller on the outer segments of the carrier roller. The process and the system make it possible to provide, in a rapid and energy-saving manner, segmented, strip-like dry films which have very precise edges.
Resumen de: US2025357563A1
The invention provides a magnetic flux generator to enhance ion transport in an electrochemical cell. The magnetic flux generator comprises one or more magnetic field sources, each being configured to produce a respective magnetic field. Each magnetic field is individually controllably variable in three spatial dimensions.
Resumen de: CN120513175A
The invention relates to a centralized temperature management module (1) comprising: a fluidic electromechanical component comprising at least a solenoid valve (4) and a pump (3); a channel (23) for the circulation of the cooling liquid generated in the support plate (2) of the fluidic component; the support plate (2) comprises an upper cover (21) and a lower cover (22), the upper cover is provided with a shell for receiving mechanical parts (3b, 4b) of the electromechanical component with the fluid function, a circulation channel (23) is formed between the lower cover and the upper cover and is at least partially recessed into the lower cover on the side facing the upper cover, and the circulation channel (23) is communicated with the upper cover (21) and the lower cover (22). The module comprises a printed circuit (60) carrying the electronics of the controller (6) arranged between the lower cover (22) and the upper cover (21), the printed circuit comprising an extension (61) bypassing the circulation channel (22), provided with a connection track and equipped with a first electrical connector (62, 63) passing through an opening (26) of the upper cover (21), the first electrical connector is intended to receive a first complementary electrical connector (71, 73) originating from a fluidic electromechanical component (3, 4).
Resumen de: CN120604374A
The present invention relates to a polymer electrolyte composition comprising a lithium salt of (difluoromethanesulfonyl) (trifluoromethanesulfonyl) imide and a second lithium salt. The invention also relates to an electrochemical cell or battery comprising said polymer electrolyte composition and to a method for preparing said polymer electrolyte composition.
Resumen de: CN120604373A
The present invention relates to a polymer electrolyte comprising: i. At least one polymer; ii. At least one sulfonamide; and iii. At least one lithium salt; the electrolyte is also characterized in that it does not comprise an organic carbonate. The polymer electrolyte according to the invention preferably exists in the form of a gel. The invention also relates to an electrochemical cell or battery comprising said polymer electrolyte. A significant advantage of gel electrolytes is that it is characterized by improved thermal stability due to the absence of flammable liquids, such as organic carbonates, commonly involved in liquid electrolytes. The invention also relates to a method for producing the polymer electrolyte according to the invention and to a method for producing an electrochemical cell or battery comprising the polymer electrolyte according to the invention.
Resumen de: EP4657597A1
A method for at least partially desulfating a lead-acid battery, comprising applying to the battery a series of current pulses formed by positive current pulses alternating with negative current pulses, wherein the alternating negative and positive current pulses are continuously applied to the battery without resting time between consecutive pulses.
Resumen de: EP4657626A1
Battery system for a vehicle, the battery system comprising a housing and at least one battery module, wherein the housing is adapted to house the at least one battery module, wherein the housing comprises a first housing part adapted to be mounted to a frame of the vehicle, and a second housing part releasably mountable to the first housing part to house the at least one battery module,
Resumen de: EP4657577A1
The present invention relates to a solid state electrolyte (SSE) comprising a dense membrane comprising LLZO having a thickness equal to or lower than 100 µm and a Sb-comprising coating layer having a thickness between 1 and 20 nm provided on a surface of the dense membrane, the dense membrane having a density equal to or higher than 90 % of the theoretical density of the membrane, wherein the surface of dense membrane onto which the coating layer is provided is substantially free of Li<sub>2</sub>CO<sub>3</sub>, wherein the SSE comprises a first Li-Sb alloy at the interface of the Sb-comprising coating layer and the LLZO-comprising dense membrane, wherein the thicknesses are as calculated from SEM images of the SSE. The invention further relates to a solid state battery (SSB) comprising the SSE and to methods of producing the SSE and the SSB.
Resumen de: EP4657615A1
Disclosed is a method (100) for manufacturing an electrode assembly (200) for use in a battery, the method comprising receiving an electrode stack (202) comprising a plurality of electrode sheets stacked in a stacking direction, the electrode stack having a first side (202A), a second side (202B) opposite to the first side and a third side (202C) extending between the first and second sides, the first and second sides extending perpendicular or substantially perpendicular to the stacking direction; arranging a first adhesive tape (210) on the first and third sides of the electrode stack such that the first adhesive tape covers the first side at least in part and a portion of the third side abutting the first side; arranging a second adhesive tape (212) on the second and third sides of the electrode stack such that the second adhesive tape covers the second side at least in part and a portion of the third side abutting the second side; and attaching the first adhesive tape and the second adhesive tape to each other for securing the electrode sheets in the electrode stack.
Nº publicación: EP4657614A1 03/12/2025
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Resumen de: EP4657614A1
A battery (100) comprises: an electrode assembly (200), a case (110) including at least one accommodation portion (112) surrounding the electrode assembly (200) and an expansion portion (114) extending outwardly from the accommodation portion (112), wherein the expansion portion (114) is folded or rolled toward the accommodation portion (112) such that a contact surface (120) of the expansion portion (114) lies on the accommodation portion (112) facing the accommodation portion (112), and wherein an adhesive (120) is provided between the expansion portion (114) and the accommodation portion (112) and covers the contact surface (118) at least partially.
BOPI
Sede Electrónica
