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1482
resultados
Última actualización
03/04/2026 [07:26:00]
Resultados 300 a 325 de 1482
Resumen de: EP4718506A1
A negative electrode containing Si-C composite particles (10) and graphite particles (14), and capable of suppressing capacity degradation when a secondary battery is repeatedly charged and discharged is provided. The negative electrode of a secondary battery of the present disclosure includes a negative electrode current collector (62), and a negative electrode active material layer supported by the negative electrode current collector. The negative electrode active material layer contains graphite particles and Si-C composite particles as a negative electrode active material. Each of the Si-C composite particles includes a porous skeleton (11) made of carbon, and Si-containing particles located in voids (11a) of the porous skeleton. A coating (13) including LiF is formed on at least a part of an outer surface of each of the Si-C composite particles.
Resumen de: EP4718576A1
The application discloses a power limiting method for a power battery, including steps of: acquiring a real-time voltage of the power battery during charging and discharging processes of the power battery; performing a current limiting operation on the power battery when the real-time voltage exceeds a voltage allowable range, wherein an upper limit of the allowable voltage range is less than a high voltage protection threshold of the power battery, and a lower limit of the allowable voltage range is greater than a low voltage protection threshold of the power battery; ceasing the current limiting operation after the real-time voltage recovers to be in a voltage recovery range, wherein the voltage recovery range is within the voltage allowable range and is smaller than the voltage allowable range.
Resumen de: EP4718586A1
The present invention provides a structure of a battery module including: a battery cell; a module frame having a bottom plate whereon the battery cell is disposed; and a thermally conductive resin interposed between a bottom surface of the battery cell and the bottom plate, wherein the bottom plate is provided with a anchor arranged in grid of multiple rows and multiple columns, and the thermally conductive resin extends downward and fills the anchor.
Resumen de: EP4718580A1
A battery module, including a frame body, a plurality of bare cells, a sealing assembly and a cooling assembly. The frame body internally has an accommodating space. The bare cells are arranged in the accommodating space. The sealing assembly is connected to the frame body, and is configured to seal the accommodating space. The cooling assembly includes a liquid inlet pipe, a liquid inlet connector and a liquid outlet connector. The liquid inlet connector and the liquid outlet connector are provided on the same outer side of the frame body. The liquid inlet pipe is provided inside the accommodating space. One end of the liquid inlet pipe is connected to the liquid inlet connector, and the other end of the liquid inlet pipe extends to a side of the accommodating space away from the liquid inlet connector. The battery module and the battery pack can address the problem that it is difficult to meet the thermal management requirements of batteries.
Resumen de: EP4718564A1
The present disclosure discloses an electrolyte additive, an electrolyte, and a battery. The electrolyte additive includes a compound represented by Formula 1 and an electrophilic film-forming additive,In the compound represented by Formula 1, R<sub>1</sub> and R<sub>2</sub> are each independently fluorine atom or fluoroalkyl having 1 to 10 carbon atoms.
Resumen de: EP4718573A1
A battery management system includes a battery monitoring unit configured to monitor a temperature and voltage of a battery and determine whether an abnormality occurs in the battery, a fire monitoring unit configured to detect an occurrence of a fire, and a control unit configured to control a cooling temperature of a chiller according to results of monitoring by the battery monitoring unit and the fire monitoring unit. The chiller control unit is configured to reduce the cooling temperature of the chiller when the battery monitoring unit determines that the abnormality occurs. The chiller control unit is also configured such that, when the fire monitoring unit detects a fire, the chiller control unit operates the chiller at a lower cooling temperature than the reduced cooling temperature used when the abnormality occurs.
Resumen de: EP4718512A1
The present disclosure relates to the technical field of batteries, and in particular to a negative electrode active material, and a negative electrode plate and a battery comprising the negative electrode active material. The negative electrode active material comprises silicon-carbon composite particles; the silicon-carbon composite particles have closed pores, and the volume fraction of the closed pores is 4%-50%; the silicon-carbon composite particles have a core-shell structure with a shell thickness of t, where 0 < t ≤ 10 nm; the silicon-carbon composite particles have a first region and a second region on cross section, the content of silicon element in the first region is c1, the content of silicon element in the second region is c2, and 0.15 ≤ c2/c1 ≤ 1.4; where the dimension of the perpendicular line to the tangent line at any point on the edge of the cross section is L on the cross section, and on the perpendicular line, a region 0.001L-0.1L away from the edge of the cross section constitutes the first region, and a region 0.1L-0.5L away from the edge of the cross section constitutes the second region. The battery of the present disclosure can have high energy density, initial Coulombic efficiency, rate performance and cycling stability at the same time.
Resumen de: EP4718571A1
Disclosed is method for manufacturing power source unit (200, 300) comprising: assembling battery unit (302) by: arranging first terminal (FT) (210A, 304A) and second terminal (ST) (210B, 304B) on printed circuit board (PCB) (202, 306) on opposite edges of PCB; applying first adhesive (FA) (212, 308) on PCB between FT and ST; attaching battery (204, 310) with FA to PCB; attaching first electrode (214A, 312A) of battery to FT and second electrode (214B, 312B) to ST; and attaching cap (206, 314) over portion of battery; inserting battery unit in first mould half (FMH) (322A); removably attaching second mould half (SMH) (322B) and FMH to form a manufacturing mould (324); clamping protrusion between FMH and SMH; filling volume (328) between battery unit and walls of manufacturing mould to form damping element (208, 330); curing one moulding material; and separating FMH and SMH to obtain manufactured power source unit.
Resumen de: EP4718570A1
A battery according to an embodiment of the present disclosure may include: an electrode assembly having a first uncoated portion extending on a first surface, the first surface including a first area covered by the first uncoated portion and a second area not covered by the first uncoated portion; a battery housing configured to receive the electrode assembly through an opening formed on one side; and a current collector disposed on the first surface of the electrode assembly so as to be electrically connected to the electrode assembly, and having a current collector opening formed in an area corresponding to the second area of the electrode assembly.
Resumen de: EP4717745A1
A tape for battery attachment includes: an adhesive portion on one surface of the tape, the adhesive portion including: a weak adhesive portion; a strong adhesive portion having a stronger adhesive strength than that of the weak adhesive portion; and a perforation line perforated along an outer periphery of the strong adhesive portion.
Resumen de: EP4718509A1
A secondary battery (100) includes a negative electrode plate (22), a positive electrode plate (21), and a separator (23). The positive electrode plate (21) includes a positive current collector (211), a first positive active material layer (212), and a positive tab (213). Along a thickness direction of the positive current collector (211), a surface of the positive current collector (211) is provided with the first positive active material layer (212). The first positive active material layer (212) is provided with a first groove (2121). The positive tab (213) is disposed in the first groove (2121) and is electrically connected to the positive current collector (211). A first positive electrode insulation layer (24) is disposed on a surface of the first positive active material layer (212) facing the negative electrode plate (22). The first positive electrode insulation layer (24) covers the first groove (2121). A first negative electrode insulation layer (24) is disposed on a surface of the negative electrode plate (22) facing the first positive active material layer (212). Along a direction perpendicular to a surface of the first negative electrode insulation layer (25), a projection of the first negative electrode insulation layer (25) on the first positive active material layer (212) covers the first groove (2121). Along a width direction of the first groove (2121), a first hole (2521) is provided on one side of the first negative electrode insulation layer (25).
Resumen de: EP4718615A2
A secondary battery including an electrode assembly, a case in which the electrode assembly is accommodated, a cap assembly covering an opening of the case, and a fire-extinguishing member accommodated inside the case, the fire-extinguishing member in contact with the cap assembly.
Resumen de: EP4718572A1
A protection circuit module includes: a protection circuit board electrically connected to an electrode tab protruding from one surface of a bare cell, and including a molding member covering one surface of the protection circuit board; a printed circuit board (PCB) on another surface of the protection circuit board opposite to the one surface; and a first spacer coupled with one end of the protection circuit board with respect to a longitudinal direction of the protection circuit board. The protection circuit board includes a first coupling portion coupled with the first spacer, and the first spacer includes a second coupling portion corresponding to the first coupling portion.
Resumen de: EP4718548A1
Provided is a battery cell stacking system comprising: a stacking worktable on which a cell stack including one or more battery cells is manufactured; and a stacking device for stacking the one or more battery cells on the stacking worktable. The stacking device is configured to perform: a first operation of rotating around a rotation shaft connected to the stacking device in a state in which the one or more battery cells are seated; and a second operation of moving toward the stacking worktable to supply the one or more battery cells to the stacking worktable.
Resumen de: EP4717374A1
Provided is a flow path forming member (70) that forms a flow path through which a heat medium passes. The flow path forming member includes a first wall surface portion (82) and a second wall surface portion (84), and a seal portion (78) related to the flow path outside a formation position of the flow path while the first wall surface portion and the second wall surface portion face each other at a distance at the formation position of the flow path. The seal portion is formed by a mechanical deformation portion (821) of the first wall surface portion and a mechanical deformation portion (841) of the second wall surface portion that are integrated with each other via a joint surface (90).
Resumen de: EP4718591A1
The present disclosure provides a manufacturing method for an electrical energy storage device (100) including an electrode body (20), a case (10), and a first electrode terminal (30) attached to a bottom wall (12a) of the case (10). This manufacturing method includes a step of electrically connecting a first current collecting member (50) to the electrode body (20), a step of inserting the electrode body (20) into the case main body (12) and disposing at least a part (52) of the first current collecting member (50) into a first concave part (30r) of the first electrode terminal (30), and a step of delivering an energy beam (LB) from a side of the first electrode terminal (30), thereby joining by welding the part of the first current collecting member (50) that is disposed inside the first concave part (30r) to the first electrode terminal (30).
Resumen de: EP4718520A1
Disclosed are an anode electrode sheet, a preparation method therefor and use thereof. The anode electrode sheet includes: a current collector having a first side and a second side opposite to each other; a first active material layer, a second active material layer, and a first artificial SEI layer, the first active material layer, the second active material layer, and the first artificial SEI layer are sequentially arranged on the first side of the current collector in a direction away from the current collector, the first active material layer includes metallic lithium, the second active material layer includes a metallic lithium alloy, and the first artificial SEI layer includes a lithide. The use of this anode electrode sheet can avoid the problems such as continuous thickening of the SEI film, persistent growth of lithium dendrites, dead lithium, and penetration of the separator by lithium dendrites, etc., thereby being conducive to improving the cycle stability of a lithium metal battery employing such an anode electrode sheet.
Resumen de: EP4718519A1
Disclosed are an anode electrode sheet and a preparation method therefor, a bipolar electrode sheet and a preparation method therefor, a battery and an electric device. The anode electrode sheet comprises: a first current collector comprising a first side and a second side opposite to each other; a first active material layer and a second active material layer, wherein the first active material layer and the second active material layer are sequentially disposed on the first side in a direction away from the first current collector, the first active material layer comprises metallic lithium, and the second active material layer comprises a metallic lithium alloy. The use of this anode electrode sheet or bipolar electrode sheet may avoid problems such as continuous thickening of the SEI film, persistent growth of lithium dendrites, formation of dead lithium, and penetration of the separator by lithium dendrites, thereby helping to improve the cycle stability of the battery using the anode electrode sheet or bipolar electrode sheet.
Resumen de: EP4718094A1
A battery power computing method, applied to a battery and a corresponding electronic device (100), the electronic device comprising:a battery (101); anda processing circuit (103), configured to perform following steps:acquiring a battery resistance table of the battery (101),wherein the battery resistance table comprises first mapping relations between a plurality of battery resistances of the battery (101) and a plurality of battery power levels;acquiring a resistance conversion table, wherein theresistance conversion table comprises second mapping relations between a plurality of battery resistance conversions and a plurality of conditions of the battery (101); andmeasuring the battery power according to the first mappingrelations and the second mapping relations, while charging or discharging the battery (101).
Resumen de: EP4718510A1
Disclosed are positive electrodes (10) and rechargeable lithium batteries (100). The positive electrode includes a current collector (COL1), a first active material layer (ALT1) on the current collector, and a second active material layer (ALT2) on the first active material layer. The first active material layer includes a first positive electrode active material (CAM1) and a first lithium-based additive (LAD1). The second active material layer includes a second positive electrode active material (CAM2) and a second lithium-based additive (LAD2). An amount of the second lithium-based additive in the second active material layer is greater than the amount of the first lithium-based additive in the first active material layer.
Resumen de: EP4718097A1
La présente invention concerne un système (10) de mesure physique au coeur d'un accumulateur (12) présentant deux bornes de puissance distinctes (16,18) comprenant :- un capteur inductif (20) à l'intérieur dudit accumulateur ;- un ensemble (22) d'éléments électriques externes audit accumulateur de sorte à former, avec ledit au moins un capteur inductif, un circuit résonant dans une première plage de fréquence prédéterminée ;- un module de mesure (26), externe audit accumulateur, configuré pour:- exciter ledit circuit électrique résonant, via un balayage en fréquence en pilotant une tension d'alimentation sur une deuxième plage de fréquence prédéterminée étendue comprenant ladite première plage ;- mesurer au moins une fréquence de résonance résultant de ladite excitation ;- obtenir une valeur d'une grandeur physique interne dudit accumulateur à partir de ladite au moins une fréquence de résonance mesurée.
Resumen de: EP4718093A1
A memory storage unit of a battery system separately stores separately storing a start-up program related to starting up of a measuring means, a measurement program related to a measurement, and a state calculation program related to calculating of a battery state of a battery cell. A controller executes a first secure boot for a first program including the start-up program and thereafter executes a process contained in the first program. While the controller is executing the process contained in the first program, the controller executes a second secure boot for a second program including the measurement program or the state calculation program. The controller executes a process contained in the second program after the process of the first program is executed and the second secure boot is executed.
Resumen de: EP4718487A1
An electrical energy storage device (100) disclosed herein includes an electrode body (20) including a first electrode (22), a case (10), and a first electrode terminal (30) electrically connected to the first electrode (22) through a first conductive member (50). The case (10) includes a case main body (12) with a bottomed tubular shape that includes a bottom wall (12a) and an opening (12h) facing the bottom wall (12a), and a sealing plate (14) that seals the opening (12h) of the case main body (12). The first electrode terminal (30) is attached to the bottom wall (12a) and includes a penetration hole (30h). The first conductive member (50) is inserted into the penetration hole (30h) and joined to the first electrode terminal (30).
Resumen de: EP4718618A1
A flexible flat cable assembly device for manufacturing a battery cell unit according to various embodiments comprises: a transfer member; and a plurality of gripping members protruding from the transfer member, wherein the plurality of gripping members may include a first gripping member for gripping one end of a flexible flat cable and a second gripping member for gripping the other end of the flexible flat cable. Various other embodiments are possible.
Nº publicación: EP4717399A1 01/04/2026
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Resumen de: EP4717399A1
A laser welding jig according to the present invention is applied to a battery cell assembly including a plurality of stacked battery cells and a side frame covering at least a portion of the plurality of battery cells, in which two adjacent leads are bent and welded, and the laser welding jig comprises: a pallet configured to allow the battery cell assembly to be seated thereon; and a protective jig arranged between the two adjacent leads.
BOPI
Sede Electrónica
