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1057
resultados
Última actualización
21/11/2025 [07:10:00]
Resultados 125 a 150 de 1057
Resumen de: EP4651257A1
The present invention relates to: an anodeless coating layer containing a first amorphous carbon and a second amorphous carbon and having a D<sub>50</sub>/D<sub>10</sub> in the range of 3.5-10 according to a particle size analysis result obtained by a particle size analyzer (Mastersizer 3000), and an all-solid-state battery comprising same. According to the present invention, it is possible to provide an anodeless coating layer having improved performance, stability, and/or lifespan characteristics, and an all-solid-state battery comprising same.
Resumen de: EP4651337A1
A battery control device includes: a connector turning ON or OFF a connection state between a plurality of batteries and an output terminal to which a discharge current is output, for each battery; a controller controlling the connector such that the plurality of batteries are connected in parallel with each other to the output terminal and discharged during a first discharge period from a start time of discharge of the plurality of batteries each of which SOC is a predetermined reference value or more until a time when the SOC of at least one of the plurality of batteries reaches the reference value, and connected alternatively to the output terminal and discharged during a second discharge period from a time when the SOC of each of the plurality of batteries becomes lower than the reference value until a time when the discharge of the plurality of batteries is terminated.
Resumen de: EP4651237A1
Disclosed are a negative electrode sheet, a battery cell, a battery, and an electric device. The negative electrode sheet includes a negative electrode current collector and a negative electrode film layer provided on at least one side of the negative electrode current collector. The negative electrode film layer includes a negative electrode active material and a binder, and the negative electrode active material includes a silicon-based material. An average-volume particle diameter Dv50 of the binder is 0.1-0.8 µm. The battery has relatively high energy density, power, and relatively good cycle performance.
Resumen de: EP4651287A1
Provided is an energy storage power supply (100). The energy storage power supply (100) includes a first housing (10), a fixing colloid, at least one first cell (20). The first housing (10) has an accommodation chamber (11) defined inside the first housing (10). The accommodation chamber (11) is provided with a positioning portion (12) at a bottom of the accommodation chamber (11). The positioning portion (12) has a positioning groove (121). The at least one first cell (20) is partially accommodated in the positioning groove. The fixing colloid is located in the positioning groove (121) and fixedly connected to the at least one cell (20) and a side wall of the positioning groove (121).
Resumen de: EP4651276A1
The present disclosure relates to a battery cell including an electrode assembly; a body case including an opening on one surface and accommodating the electrode assembly therein through the opening; a coupling region located adjacent to the opening along at least a portion of a circumference of the opening in one region of the body case; a coupling hole penetrating the body case in the coupling region; a cover portion including a terminal portion electrically connecting the electrode assembly to an outside and coupled to the body case in the coupling region to cover the opening; and an adhesive member cured by being located on an inner side surface of the body case and an outer side surface of the body case in the coupling region through the coupling hole and combining the cover portion and the body case.
Resumen de: EP4651241A1
Disclosed are composite substrates and rechargeable lithium batteries including a composite substrate. The composite substrate includes a support layer that includes an additive, a first metal layer on a top surface of the support layer, and a second metal layer on a bottom surface of the support layer. The additive includes at least one of a ceramic particle and a fire-extinguishing liquid capsule. An amount of the additive is ≥ 1 wt% to ≤ 20 wt% relative to a total weight of the support layer.
Resumen de: EP4651240A1
The present invention provides a binder composition, and a negative electrode for a secondary battery, and a lithium secondary battery, each comprising the binder composition. The binder composition of the present invention includes: a first binder resin; a second binder resin; and water, wherein the binder composition may include: lithium-substituted polyacrylic acid having a weight average molecular weight (Mw) of 300,000-1,500,000 g/mol as the first binder resin; and lithium-substituted carboxymethyl cellulose having a weight average molecular weight (Mw) of 300,000-1,500,000 g/mol as the second binder resin.
Resumen de: EP4650215A1
A hybrid battery charging method is characterized by: obtaining a plurality of battery levels corresponding respectively to a plurality of batteries (112); classifying the plurality of batteries (112) into a first group and a second group; performing a first energy allocation operation on each battery (112) in the first group; performing a second energy allocation operation on each battery (112) in the second group; and charging each individual battery (112) based on the corresponding current thus allocated to each individual battery (112). A battery energy station (100) is characterized by: an energy module (120) having an electric current; a battery storage system (110) including a plurality of batteries (112); and a processing unit (140) coupled to the energy module (120) and the battery storage system (110), and configured to implement the hybrid battery charging method.
Resumen de: EP4651214A1
The present disclosure relates to an electrode, and provides an electrode including a current collector formed of a metal foil; and a first electrode active material layer coated on one surface of the current collector and having a compressed portion compressed by pressing a predetermined region formed, wherein the compressed portion is formed at the end portion of the first electrode active material layer and is formed to have a higher density than a region located further inward than the compressed portion.Additionally, the present disclosure relates to an electrode assembly, and provides an electrode assembly in which at least one of a separator and an electrode is stacked and wound, including a core formed at the center around which the separator and the electrode are wound, wherein the electrode includes a current collector formed of a metal foil; and a first electrode active material layer coated on one surface of the current collector and having a compressed portion compressed by pressing a predetermined region formed, wherein the compressed portion is formed at the end portion of the first electrode active material layer and is formed to have a higher density than a region located further inward than the compressed portion.Additionally, the present disclosure relates to an electrode cutting device, and provides an electrode cutting device including a cutter provided to cut a current collector coated with an electrode active material; and a pressing portion that protru
Resumen de: WO2025212084A1
A thermal management system for an electrified vehicle having a power providing device includes a cooling plate that has a first port and a second port, and is configured to circulate cooling water and exchange heat with the power providing device, and a solenoid valve that is connected to the first port and the second port of the cooling plate and is configured to redirect a path of the cooling water. The solenoid valve is operable in two modes including a first mode when the solenoid valve is inactivated and a second mode when the solenoid valve is activated. Further, the activation of the solenoid valve is dependent on a temperature difference of the cooling water between the first port and the second port of the cooling plate.
Resumen de: EP4651283A1
A battery pack according to the present disclosure may include: a plurality of battery modules; and a pack case having an accommodation space formed to accommodate the plurality of battery modules, wherein the pack case may be configured such that at least one surface of the pack case is deformed when internal pressure increases due to venting gas and flame generated due to a thermal event in the battery module.
Resumen de: EP4651297A1
Disclosed are a bus bar, a battery module, and a battery pack. The bus bar includes at least two conductive sheets (2). By setting the first weak part (230) and the second weak part (240) above the thinning area (131), when pressure is released, the thinning area (131) is first broken by the high-pressure gas in the cells (1), and the impact force breaks the first weak part (230) and the second weak part (240), thereby enabling the pressure relief valve (13) to relieve pressure efficiently and smoothly. Moreover, while the first weak part (230) and the second weak part (240) are broken, the circuit connection between two adjacent cells (1) is also disconnected, thereby achieving short-circuit protection, and finally achieving a double protection of pressure relief protection and cell short-circuit protection synchronously.
Resumen de: EP4651295A1
The disclosure provides a current collector and a battery cell, which relate to a field of battery technology. The current collector includes a first conductive part, the first conductive part extends along a first direction, has a first surface away from a core package, and is provided with a groove at the first surface, the groove extends along the first direction; wherein the groove divides the first conductive part into a vertical part and a welding part.
Resumen de: EP4651278A1
Disclosed are a sealing block for preventing cracks in a pouch-shaped battery case, a method of sealing a pouch-shaped battery case using the same, and a pouch-shaped secondary battery manufactured using the same. The sealing block has an inclined shape so as to minimize impact on an electrode assembly, specifically a separator, while performing R sealing.
Resumen de: EP4651272A1
The present disclosure includes a battery module and a battery pack including the same, and a battery module according to an embodiment of the present disclosure includes: a battery cell stack in which multiple battery cells are stacked; and a module frame that houses the battery cell stack, wherein a bottom part of the module frame comprises a plurality of holes, and wherein a filling member may be provided in the plurality of holes.
Resumen de: EP4650804A1
An apparatus for diagnosing a battery according to an embodiment of the present disclosure includes a measuring unit configured to measure voltage and current of a battery; and a control unit configured to calculate a target discharge capacity until the voltage of the battery reaches a target voltage, calculate a full discharge capacity of the battery, calculate a capacity difference between the full discharge capacity and the target discharge capacity, calculate a capacity difference change rate based on the calculated capacity difference and a preset capacity difference profile, and diagnose a state of the battery based on the calculated capacity difference change rate and a preset criterion change rate.
Resumen de: EP4651225A1
Disclosed is a rechargeable lithium battery, the rechargeable lithium battery including a positive electrode including a positive electrode current collector and a positive electrode active material layer on the positive electrode current collector and including a lithium iron phosphate-based positive electrode active material, a negative electrode including a negative electrode current collector and a negative electrode active material layer on the negative electrode current collector and including a carbon-based negative electrode active material, and an electrolyte. The positive electrode includes pores with a size of about 0.6 µm to about 1 µm, the positive electrode has a porosity that is greater than or equal to about 23%, and the negative electrode has an ionic resistance that is less than or equal to about 20 Ωcm<2>.
Resumen de: EP4651292A2
Examples of present disclosure include a separator for a rechargeable lithium battery and a rechargeable lithium battery including the separator. The separator for a rechargeable lithium battery includes a porous base and a coating layer on at least one surface of the porous base. The coating layer includes a heat-resistant layer including a binder and a filler, and an adhesive layer on the heat-resistant layer and including an adhesive binder. The binder includes a (meth)acryl-based binder including a first structural unit derived from (meth)acrylic acid, (meth)acrylate, or salts thereof, a second structural unit derived from hydroxyalkyl (meth)acrylate, and a third structural unit derived from (meth)acrylamido sulfonic acid or a salt thereof. The filler includes a cubic filler having a particle size D50 ranges from 50 nm to 250 nm. The adhesive binder includes a fluorine-based adhesive binder having a carboxylic acid group or a hydroxy group.
Resumen de: EP4651273A2
A cylindrical battery (100), an electronic device (300), and a manufacturing method of the cylindrical battery (100) is provided. The cylindrical battery (100) includes a housing (110), an electrode assembly (120) disposed within the housing (110), and a current collecting member (130) electrically connected to the electrode assembly (120). The housing (110) includes a sidewall (111) formed with an opening (112). The position of the sidewall (111) near the opening (112) includes a groove (113). The current collecting member (13is at least partially disposed between the electrode assembly (120) and the groove (113), and includes a current collecting body (131) and a connecting piece (132) attached to the current collecting body (131). The connecting piece (132) is bent towards the axis of the housing (110) and welded to the surface of the groove (113) facing the electrode assembly (120) to form a welded part (140).
Resumen de: EP4651271A1
A battery enclosure in the battery pack includes a liquid cold plate (200), a bottom protective plate (100), and a sealing ring (400). The liquid cold plate (200) includes a first end surface and a second end surface opposite to the first end surface. The second end surface is provided with a first protruding end surface and a second protruding end surface connected to each other and protruding in the direction away from the first end surface. The vertical distance between the first protruding end surface and the second end surface is less than the vertical distance between the second protruding end surface and the second end surface. The bottom protective plate (100) is connected to the second protruding end surface and forms an accommodation space with the first protruding end surface. The sealing ring (400) is clamped in the accommodation space.
Resumen de: EP4651250A2
An electrolyte and a rechargeable lithium battery includes the electrolyte are provided. The electrolyte includes a non-aqueous organic solvent; a lithium salt; lithium bis(oxalato)borate (LiBOB); a first compound represented by Chemical Formula 1; and a second compound represented by Chemical Formula 2.
Resumen de: EP4651266A1
Disclosed are methods of recovering lithium precursors, methods of preparing positive electrode active materials, and rechargeable lithium batteries. The method of recovering a lithium precursor comprises preparing a first solution that includes lithium ions and transition metal ions, preparing a second solution by mixing the first solution and a first basic reagent, preparing a third solution by extracting a transition metal from the second solution, preparing a fourth solution by mixing the third solution and a second basic reagent, and extracting the lithium precursor from the fourth solution. The first basic reagent is prepared using a waste solution produced in a washing process of a positive electrode active material.
Resumen de: EP4650140A2
Provided is a structure of a battery module (1) including: a battery cell (11) including an electrode lead (110) protruding and extending forward; a sensing block (12) arranged in front of the battery cell and having a slit (120) through which the electrode lead passes forward and rearward; and a bus bar (13) mounted on a front portion of the sensing block and on one side in a width direction of the slit, wherein the electrode lead is bent toward one side in the width direction at a bent portion located forward of the slit and is connected to the bus bar, the sensing block includes a first flat surface (121), a second flat surface (122), and a stepped portion (124), and a boundary where the inner peripheral surface of the slit and the first flat surface meet is formed as a corner having an internal angle of 90 degrees or less.
Resumen de: EP4651291A1
A battery module includes: a frame including an internal space, an open front side, and a top plate with a venting hole formed therein; a plurality of battery cells accommodated in the internal space and arranged in a left-right direction; an end cover coupled to the front side of the frame; and a filling material filled between the plurality of battery cells and the end cover.
Nº publicación: EP4651255A1 19/11/2025
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Resumen de: EP4651255A1
The present disclosure relates to an electrolyte additive, an electrolyte for a lithium secondary battery including the same and a lithium secondary battery. Specifically, the present disclosure may provide an electrolyte for a lithium secondary battery which may achieve excellent high-temperature storage characteristics and high-temperature cycle characteristics by including an electrolyte additive including a compound represented by Formula 1 capable of effectively suppressing the deterioration of a positive electrode, and of being not easily decomposed on a negative electrode, and a lithium secondary battery comprising the same.
BOPI
Sede Electrónica
