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1729
resultados
Última actualización
19/03/2026 [07:23:00]
Resultados 800 a 825 de 1729
Resumen de: EP4708598A1
A bracket structure and a battery pack are provided herein. The bracket structure includes a mounting bracket (1), the mounting bracket (1) comprises a first mounting end (1A) and a second mounting end (1B) disposed opposite to each other in a first direction(Z), the first mounting end (1A) is configured to mount a copper busbar (2), the second mounting end (1B) is configured to be connected to a battery box(11), at least one side of the mounting bracket (1) in a second direction (Y) is configured to mount a harness (3), the second direction (Y) intersects with the first direction(Z); in the first direction(Z), the harness (3) is located between the first mounting end (1A) and the second mounting end(1B).
Resumen de: EP4708428A1
The present invention provides a lead tab including a metal substrate including aluminum and a metal layer laminated on both sides of the metal substrate, wherein the metal layer includes 70 to 99.9 wt% of chromium, wherein the lead tab has a gloss of 60 to 100 (Gs 60°), and has a water contact angle of 60 to 80°.
Resumen de: EP4708552A1
A battery module of the present invention includes: a stack provided as one or more battery cells; a case in which the stack is accommodated; and a PCB assembly provided inside the case and configured to electrically connect a first busbar provided at one side of the stack to a second busbar provided at the other side of the stack or cut off electricity so as not to flow when current exceeding a preset value flows, wherein the PCB assembly includes: a first connection cable connected to the first busbar; a second connection cable connected to the second busbar; and a PCB provided with a circuit configured to electrically connect the first connection cable to the second connection cable and a fuse configured to cut off the electricity so as not to flow through the circuit when the current exceeding the preset value flows through the circuit.
Resumen de: EP4708442A1
An electrolytic solution and a battery. The electrolytic solution includes a first lithium salt, a second lithium salt and a first additive, the first lithium salt at least including lithium bis(fluorosulfonyl)imide, the second lithium salt being selected from at least one of lithium difluoro(oxalato)borate, or lithium difluoro(bisoxalato)phosphate, and the first additive being methylene methanedisulfonate. On the basis of the electrolytic solution including the first lithium salt and the second lithium salt, the first additive, i.e. methylene methanedisulfonate (MMDS), is further added in the electrolytic solution; the second lithium salt helps to improve the cycling stability and high-temperature storage performance of batteries, and the first additive helps to improve the oxidation resistance of the second lithium salt under high voltages, so as to further modify the composition and structure of SEI films, thus reducing the impedance of SEI films, improving the stability of SEI films, and improving the cycle performance and high-temperature storage performance of batteries.
Resumen de: EP4707829A1
An apparatus for diagnosing resistance increase rate of cellaccording one embodiment of thepresent disclosure may include: a determination unit that determines a reference voltage range based on a discharge profile of a unit cell, an identification unit that identifies a capacity retention rate in a reference voltage range of a unit cell subjected to a specified number of charge-discharge cycles, and a diagnosis unit that diagnoses a resistance increase rate of the unit cell based on the identified capacity retention rate.
Resumen de: EP4708466A1
A prismatic type secondary battery includes an electrode assembly including an electrode tab, a pouch that accommodates the electrode assembly and includes a joint portion formed open at a location corresponding to the electrode tab, a prismatic can having one side open to accommodate the pouch, and a cap assembly including a metal current collector and inserted into the open side of the prismatic can, and in this case, the pouch includes the joint portion joined to the cap assembly while the electrode tab is connected to the metal current collector, and the prismatic type secondary battery improves the efficiency of an electrolyte injection process through a sealing structure in which a pouch accommodating an electrode assembly is inserted into a prismatic can and a joint portion of the pouch is joined to a cap assembly.
Resumen de: EP4708451A1
A secondary battery temperature evaluation apparatus, including a case having an opening in at least one end of the case, an electrode assembly being accommodated in the case, a temperature detector attached to the electrode assembly accommodated in the case, the temperature detector detecting a temperature and outputting a temperature detection signal, and a wire connected to the temperature detector, the wire being exposed after passing from inside to outside of the case and through which the temperature detection signal is transmitted outside of the case.
Resumen de: EP4708426A1
The present invention provides a lead tab comprising: a metal substrate including aluminum; and a metal layer disposed on both sides of the metal substrate; wherein the metal layer comprises 70 to 99.9 wt% of chromium and wherein the lead tab has an ultrasonic welding strength of 70 kgf/mm<sup>2</sup> or more.
Resumen de: EP4708427A1
The present invention provides a lead tab comprising: a metal substrate including aluminum; and a metal layer disposed on both sides of the metal substrate; wherein the metal layer comprises 70 to 99.9 wt% of chromium and wherein the lead tab has a laser welding strength of 40 kgf/mm<sup>2</sup> or more.
Resumen de: EP4708377A1
Disclosed are positive electrodes and all-solid-state batteries including the positive electrodes. A positive electrode includes a positive electrode current collector, a positive electrode active material layer on the positive electrode current collector, and a porous film in the positive electrode active material layer. The positive electrode active material layer includes positive electrode active material particles and solid electrolyte particles. The positive electrode active material layer has a first section and a second section that are distinct across the porous film. The first section is between the positive electrode current collector and the porous film. An average particle diameter of the solid electrolyte particles in the first section is different from an average particle diameter of the solid electrolyte particles in the second section.
Resumen de: EP4708403A1
A secondary battery, including: a positive electrode, a negative electrode, and an electrolyte. The positive electrode includes a positive current collector and a positive active material layer formed on the positive current collector, the positive active material layer includes a positive active material and polyvinyl butyral, and the electrolyte includes lithium difluorophosphate and a trinitrile compound. A shedding resistance of the positive electrode is improved, an initial resistance of the secondary battery is further reduced, and a low-temperature rate characteristic is further improved.
Resumen de: EP4708395A1
The present application relates to a negative electrode active material, a method for manufacturing a negative electrode active material, a negative electrode composition, a negative electrode for a lithium secondary battery including the same, and a lithium secondary battery including a negative electrode.
Resumen de: EP4708372A1
Example embodiments of the present technology provide a battery cell formation device. The apparatus includes: a driving part including a driving plate and driving rods configured to move the driving plate in a first direction; and a support part including a support plate and elastic elements connected to the support plate, in which the support plate is spaced apart from the driving plate in the first direction and includes steps protruding in the first direction.
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: EP4708519A1
A coupling mechanism according to an embodiment of the present invention may include a head part, a screw part provided to be coupled to the head part, and an elastic member configured to elastically connect the head part to the screw part in an internal accommodation space defined when the head part and the screw part are coupled to each other.
Resumen de: EP4708518A1
A coupling mechanism according to an embodiment of the present invention may include a head part, a screw part provided to be coupled to the head part, and a bonding member which is disposed along an outer circumference of the head part on the screw part and is melted when a temperature of the bonding member is equal to or greater than a predetermined temperature.
Resumen de: EP4707836A1
A battery management apparatus according to an embodiment disclosed herein includes a voltage measurement unit configured to measure a voltage of each of a plurality of battery cells and a controller configured to calculate 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, calculate 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 calculate a first diagnosis deviation between the first deviation and the second deviation for each of the plurality of battery cells, diagnose each of the plurality of battery cells based on whether a final diagnosis deviation related to the first diagnosis deviation of each of the plurality of battery cells is at least a first threshold value and based on a time during which the final diagnosis deviation is maintained as being at least a second threshold value.
Resumen de: EP4708537A1
A method for preparing a composite coating separator is disclosed. The method includes: mixing raw materials including an inorganic powder, a hollow latex microsphere emulsion, a binder, and a solvent to obtain a mixed slurry; applying the mixed slurry to a surface of a base film, and drying the mixed slurry on the surface of the base film to obtain the composite coating separator. A mass ratio of the inorganic powder in the mixed slurry is 20%-35%, and a mass ratio of the hollow latex microsphere emulsion in the mixed slurry is 5%-10%. A viscosity of the mixed slurry is 100 mPa.s-120 mPa.s. The hollow latex microsphere emulsion includes hollow microspheres, and a density of the hollow microspheres is 0.8 g/cm<sup>3</sup>-0.9 g/cm<sup>3</sup>.
Resumen de: EP4708378A1
An anode material for a secondary battery, an anode for a secondary battery and a secondary battery are provided. The anode material for the secondary battery includes a plurality of oxide particles and a protection layer. The protection layer covers the plurality of oxide particles, and the material of the protection layer includes carbon.
Resumen de: EP4708448A1
Disclosed is a battery module, and a battery pack and a vehicle including the same. The battery module includes a battery cell stack in which a plurality of battery cells are stacked; a case in which the battery cell stack is accommodated; and a cooling member disposed between the plurality of battery cells, wherein the battery cells include a first battery cell having electrode leads respectively formed at both sides thereof, and a second battery cell having both electrode leads formed at one side thereof.
Resumen de: EP4708551A1
Disclosed are an assembly method for a secondary battery (1), a secondary battery (1), a battery pack (8) and an electronic device (9). The assembly method for the secondary battery (1) includes the following steps: an assembly step, assembling a current collector (30) and a terminal (40), so that a wall portion (405) of the terminal (40) abuts against the current collector (30); a welding step, irradiating a laser spot on the wall portion (405), and moving the laser spot along a helical trajectory, welding the wall portion (405) and the current collector (30) to form a weld mark (60), wherein, on a cross-section passing through a terminal axis, the weld mark (60) extends from a first end (60a) located on a surface of the wall portion (405) facing away from the current collector (30) to a second end (60b) located inside the current collector (30).
Resumen de: EP4708420A1
A secondary battery (300) including a housing (320) having an end wall and a sidewall, a positive electrode sheet, a first separator (210), a negative electrode sheet (220), a second separator (210), a first collector plate (310), and a first insulation film (230) is provided. An opening (330) is formed on one side of the sidewall facing away from the end wall. The positive electrode sheet, the first separator (210), the negative electrode sheet (220), and the second separator (210) are stacked and wound sequentially to form an electrode assembly (200) accommodated in the housing (320). The first collector plate (310) is disposed on one end of the electrode assembly (200) facing the opening (330), and the housing (320) is electrically connected to the negative electrode tab (221) through the first collector plate (310). The first insulation film (230) is wrapped around an outer periphery of the electrode assembly (200).
Resumen de: EP4708511A1
Disclosed is a battery pack having a stable fixing structure. The battery pack includes a pack case having a predetermined accommodation space; and a cell array stack including a plurality of cell array structures that are stacked in multi stages, the cell array stack having a case mounting portion fixed to at least one side wall of the pack case.
Nº publicación: EP4707236A1 11/03/2026
Solicitante:
LG CHEMICAL LTD [KR]
LG Chem, Ltd
Resumen de: EP4707236A1
The present invention relates to a carbon nanotube dispersion exhibiting low viscosity and little change in viscosity over time, which includes carbon nanotubes, a dispersant, and a dispersion medium, wherein the dispersant contains a first dispersant and a second dispersant in a weight ratio of 100:10 to 90, the first dispersant is a dispersant containing an N atom, the second dispersant is a compound containing a sulfonic group, a hydroxyl group, and an aromatic ring in a molecular structure, and the carbon nanotubes and the dispersant are present in a weight ratio of 100:25 to 500.
BOPI
Sede Electrónica
