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1008
resultados
Última actualización
16/10/2026 [07:23:00]
Resultados 50 a 75 de 1008
Resumen de: EP4822805A1
0001 Embodiments of the present application relate to the technical field of batteries, and provide a battery cell, a battery, an electric device, and an energy storage apparatus. The battery cell comprises a casing and an electrode assembly, the electrode assembly is accommodated in the casing, the volume of the casing is V, the capacity of the battery cell is C, and the volume of the casing and the capacity of the battery cell satisfy: 1.4 dm<3>≤V≤65 dm<3> and 400 Ah≤C≤5000 Ah. Therefore, the situation that the battery cell has a too small volume and a too high capacity is avoided, so that the manufacturing cost of a high-capacity battery cell is reduced, achieving better economy; and the situation that the battery cell has a too large volume and a too low capacity is avoided, so that the volume energy density of the high-capacity battery cell is improved, thus taking both the economy and energy density requirements of the battery cell into account.
Resumen de: WO2025120509A1
A method for forming battery cells comprises electrically coupling battery cells (100) to an electrically active station (10); providing the electrically active station (10) configured to selectively apply to each battery cell (100) first maximum currents or second maximum currents having intensities comprised between 2 5 and 5 times the intensity of the first maximum currents; performing the formation of the battery cells (100) by electrically charging and discharging the battery cells (100), wherein performing the formation comprises applying the first maximum currents to each battery cell (100); performing DC/IR tests on the battery cells (100), wherein performing the DC/IR tests comprises applying the second 0 maximum currents to each battery cell (100); removing the battery cells (100) from the electrically active station (10); wherein performing the formation and performing DC/IR tests are both implemented before removing the battery cells (100) from the electrically active station (10).
Resumen de: WO2025120525A1
A warehouse (10) for the process of aging electrochemical cells comprises a containment structure (12) inside which are housed: a plurality of aging stations (17) each of which is configured to receive at least one tray (11) containing electrochemical cells (100); at least one transfer station (16) configured to receive trays (11) containing electrochemical cells (100); and a transport system (18) for transferring trays (11) containing electrochemical cells (100) between the transfer station (16) and each aging station (17) and between each aging station (17) and said transfer station (16). The warehouse further comprises a conditioning system (30) comprising a warehouse conditioning circuit (31) configured to thermally condition the trays (11) independently of each other when placed in the respective aging stations (17). The warehouse conditioning circuit (31) is placed in fluid connection with a fluid heater (32) and with a fluid cooler (33) in which the fluid is a conditioning fluid. The warehouse conditioning circuit (31) comprises a first group of hydraulic pipings (34) comprising delivery ducts (36) connecting the fluid heater (32) with each aging station (17) and a second group of hydraulic pipings (35) comprising delivery ducts (38) connecting the fluid cooler (33) with each aging station (17).
Resumen de: EP4822859A1
The present disclosure relates to a battery module that includes a plurality of battery cells, a module case configured to accommodate the plurality of battery cells and having a venting hole formed through at least one side thereof, and a first blocking member provided between the plurality of battery cells and the module case and configured to allow venting gas generated from the battery cells to pass therethrough.
Resumen de: EP4822756A1
The present specification discloses an electrode assembly and a secondary battery. The present specification discloses an electrode assembly formed by combining: an electrode capable of exhibiting low resistance and excellent electrical characteristics in a normal state of a secondary battery, and securing stability by being rapidly converted into an insulator in an abnormal state thereof; and a separator which is referred to as a so-called SRS (safety-reinforcing separator). The present specification also discloses a secondary battery comprising the electrode assembly.
Resumen de: EP4822764A1
0001 The present specification discloses an electrode assembly and a secondary battery. The present specification discloses an electrode assembly formed by combining: an electrode capable of exhibiting low resistance and excellent electrical characteristics in a normal state of a secondary battery, and securing stability by being rapidly converted into an insulator in an abnormal state thereof; and a separator which is referred to as a so-called SRS (safetyreinforcing separator). The present specification also discloses a secondary battery comprising the electrode assembly.
Resumen de: WO2025119923A1
The invention relates to a method for separating an electrochemical bundle from the packaging therefor (case or pouch) of an out-of-use and/or end-of-life storage cell, which is integrated into a battery module and/or battery pack, comprising successively cutting the two end sections of the packaging, mechanically reinforcing the module between the two cuts in order to keep the storage cells mechanically connected, resting the module against a support, inserting a dedicated pushing tool into the electrochemical bundle and then removing the latter by pushing it out of the packaging.
Resumen de: WO2025119921A1
The invention relates to a method for separating an electrochemical bundle from the packaging therefor (case or pouch) of an out-of-use and/or end-of-life metal-ion storage cell, which consists in making at least one cut in the packaging, anchoring a dedicated tool in the electrochemical bundle and then removing the latter by pulling it out of the packaging.
Resumen de: WO2025119905A1
A negative electrode for a lithium-ion electrochemical element, the electrode comprising: - a current collector, - a composition of active material deposited on at least one of the faces of the current collector and comprising an active material which is a compound of formula M15-xM'xM''1-yM'''yO40-aXb wherein: M represents one or more elements selected from Nb, Ta and V, M' represents one or more elements selected from Ti, Zr, Mo, Cr, As and Sb, M'' represents one or more elements selected from Mo and W, M''' represents one or more elements selected from Cr, V and Te, X represents a halogen, 0≤x≤7.5; 0≤y<1; 0≤a≤5; 0≤b≤1, the compound satisfying the equation (15-x)*5 + nx + (1-y)*6 + my =(40-a)*2 + b; n and m respectively indicating the average degrees of oxidation of M' and M'''.
Resumen de: EP4821906A1
0001 Disclosed are a porous aluminum oxide powder for lithium-ion battery and a preparation method thereof, a battery separator based on the porous aluminum oxide, a battery, and an electric device. The porous aluminum oxide powder comprises aluminum oxide particles having tetragonal prism structure in an amount of not less than 50%, aluminum oxide particles having spherical structure in an amount of not more than 1%, and aluminum oxide particles having needle-like structure and flake structure in an amount of not more than 5%. The ratio of the edge length to the diagonal length of a bottom surface of aluminum oxide particle having tetragonal prism structure is 1:(0.5-5). The porous aluminum oxide is conducive to optimizing the electrolyte wettability of a polymer separator, so that the electrolyte diffusion radius of the separator is significantly increased.
Resumen de: EP4822796A1
The present invention provides a lithium secondary battery that achieves weight reduction, cost reduction, and a favorable capacity retention rate, and provides a method for manufacturing the lithium secondary battery. The present invention relates to a lithium secondary battery including: a positive electrode; a separator; and a negative electrode including a negative electrode current collector and a negative-electrode active material layer on the negative electrode current collector, in which the negative electrode current collector includes a resin layer and metal layers provided on both surfaces of the resin layer, the negative-electrode active material layer faces the positive electrode with the separator being interposed between the negative-electrode active material layer and the positive electrode, the separator includes an adhesive layer on a surface on a side of the negative electrode, a peel strength x between the resin layer and the metal layer at 25°C is 0.05 N/cm or more, and a peel strength y between the negative-electrode active material layer and the separator at 25°C satisfies x < y.
Resumen de: EP4822868A2
Disclosed is a battery module with an improved structure to reinforce safety when a thermal event occurs inside the battery module. The battery module includes a plurality of battery cells stacked in at least one direction; a module case configured to accommodate the plurality of battery cells in an inner space; and a blocking member interposed between adjacent battery cells and including a heat transfer preventing unit configured to prevent heat transfer between the adjacent battery cells and a flame transfer preventing unit provided to an inner side of the heat transfer preventing unit and configured to block a flame between the adjacent battery cells.
Resumen de: EP4822832A1
0001 A battery cell (100), a battery (200), and an electrical device. The battery cell (100) comprises a housing (10), an electrode assembly (30) and an end cover (20). The housing (10) is provided with a first end part (11) and a second end part (12) opposite to the first end part (11). The first end part (11) is provided with an opening (111). The housing (10) comprises an inner wall surface (13) and an outer wall surface (14). The outer wall surface (14) is provided with a weak structure (141). The weak structure (141) is closer to the opening (111) relative to the second end part (12). The housing (10) comprises a first wall (15) and a second wall (16) connected to the first wall (15). The area of the first wall (15) is greater than the area of the second wall (16). The weak structure (141) is formed on the outer wall surface (14) of the first wall (15). The electrode assembly (30) is arranged in the housing (10). The end cover (20) is in sealed connection with the housing (10) and seals the opening (111).
Resumen de: EP4822784A2
0001 An apparatus is disclosed that includes an active storage layer including: a network of carbon nanotubes defining void spaces; and a carbonaceous material located in the void spaces and bound by the network of carbon nanotubes. In some cases, the active layer provides energy storage, e.g., in an ultracapacitor device.
Resumen de: EP4821883A1
0001 The present disclosure provides a resource utilization method for a lithium-containing mother liquor and a resource utilization device for a lithium-containing mother liquor. The resource utilization method for the lithium-containing mother liquor includes the following steps: providing a lithium-containing mother liquor containing lithium ions and sulfate ions; mixing the lithium-containing mother liquor with a phosphate salt solution followed by a lithium precipitation treatment to obtain a lithium-containing slurry; subjecting the lithium-containing slurry to a solid-liquid separation treatment to obtain a pre-adsorption liquid and a first solid material; adsorbing the lithium ions in the pre-adsorption liquid with a titanium-based adsorbent to obtain a post-adsorption liquid; and subjecting the post-adsorption liquid to a concentration and crystallization treatment; wherein an amount-of-substance ratio of the lithium ions in the lithium-containing mother liquor to phosphate ions in the phosphate salt solution is 3:(0.7 to 0.8). The resource utilization method for the lithium-containing mother liquor can improve the lithium recovery rate and a purity of the recovered product.
Resumen de: EP4822831A1
0001 A battery cell (100), a battery (200), and an electrical device. The battery cell (100) comprises a housing (10), an electrode assembly (40), a top cover (20), and an insulating film (30). The housing (10) has a first end part (11) and a second end part (12) opposite to the first end part (11). The first end part (11) is formed with an opening (111). The housing (10) comprises an inner surface (13) and an outer surface (14). The inner surface (13) is provided with an energy absorption structure (141). The energy absorption structure (141) is closer to the opening (111) relative to the second end part (12). The electrode assembly (40) is arranged in the housing (10). The top cover (20) is in sealed connection with the housing (10) and seals the opening (111). The insulating film (30) is arranged on the outer surface (14).
Resumen de: EP4822855A2
Disclosed is a battery module with an improved structure to improve safety. The battery module includes a cell assembly having at least one battery cell; a body frame configured to accommodate the cell assembly in an inner space and having an open portion formed in at least one side; an end frame coupled to the open portion of the body frame and having at least one of a terminal portion and a connector portion; and a blocking member interposed between the end frame and the cell assembly and configured to block the movement of flame.
Resumen de: EP4822851A1
0001 A battery and an electrical device. The battery comprises a case, a fixed beam, battery cells, and a first heat exchange member; the fixed beam is arranged in the case and divides the inner space of the case into a first cavity and a second cavity; clearance spaces enabling the first cavity and the second cavity to be communicated with each other are formed in the fixed beam and/or the case; the battery cells are arranged in the case and located in the first cavity; the first heat exchange member is arranged in the case and located between the battery cells and the case; the first heat exchange member is provided with at least one heat exchange flow channel and comprises a heat exchange part and connection parts; the heat exchange part is located in the first cavity and used for exchanging heat with the battery cells; the connection parts are provided with ports of the heat exchange flow channel; and the connection parts penetrate through the clearance spaces from the heat exchange part and extend into the second cavity, so that the ports of the heat exchange flow channel are located in the second cavity.
Resumen de: EP4822887A1
An electrode assembly (30) and a manufacturing method therefor, a battery cell (7), a battery, and an electrical device, said electrode assembly (30) comprising a first electrode plate (301) and a second electrode plate (302) that have opposite polarities, as well as a first insulator (303). The first electrode plate (301) and the second electrode plate (302) are wound in a winding direction. The first electrode plate (301) comprises a first current collector (3011) and a first active material layer (3012) arranged on a surface of the first current collector (3011). An end portion of the first current collector (3011) in the winding direction is provided with a first end face (30111). The first insulator (303) is connected to the first electrode plate (301) and covers at least part of the first end face (30111). In the described structure, the first end face (30111) provided at the end portion of the first current collector (3011) is covered with the first insulator (303), and the first insulator (303) can wrap up burrs on the first end face (30111). Thus, the risk of burrs piercing a separator (305) of the electrode assembly (30) is reduced, the possibility of short circuiting occurring inside of the battery is reduced, and improvement to the reliability of the battery is facilitated.
Resumen de: EP4822795A2
Disclosed is a cylindrical battery, which includes an electrode assembly; a battery housing configured to accommodate the electrode assembly through an open portion; a current collecting plate having a support portion, an uncoated portion coupling portion coupled to the first uncoated portion, and a housing coupling portion electrically connected to the battery housing; a cap plate covering the open portion; an electrode terminal riveted through a perforated hole formed in a closed portion of the battery housing and electrically connected to the second uncoated portion; and an insulating gasket interposed between the electrode terminal and the perforated hole, wherein the electrode terminal includes a body portion; an outer flange portion; an inner flange portion; and a flat portion provided on an inner side of the inner flange portion.
Resumen de: EP4821978A2
0001 The present application can provide a curable composition or a thermal interface material, and the like that exhibits low adhesion force to a predetermined adherend while having a low density as well as exhibiting a high thermal conductivity, and provide a curable composition or a thermal interface material, and the like that secures excellent flame retardant properties, and exhibits ejection properties and thixotropy suitable for processes in a state where halogen flame retardants or phosphorus-based flame retardants are not used, or the use ratio thereof is minimized.
Resumen de: EP4822883A2
The present disclosure discloses a cylindrical battery cell, and a battery pack and a vehicle including the same. The cylindrical battery cell includes a jelly-roll type electrode assembly in which a first electrode plate and a second electrode plate having a sheet shape and a separator interposed therebetween are wound in one direction; a battery can having an open portion in which the electrode assembly is accommodated and a partial closed portion opposite to the open portion and electrically connected to the second electrode plate; a current collection plate electrically connected to the first electrode plate; a cell terminal connected to the current collection plate through a perforated hole of the closed portion of the battery can; and an insulator interposed between the battery can and the current collection plate.
Resumen de: EP4822810A2
A cylindrical secondary battery having an improved electrode terminal structure and its fabricating method are provided. The cylindrical secondary battery according to the present disclosure has an improved electrode terminal structure, and a first current collector plate and an electrode terminal are coupled through a laser welding method. A laser welding portion formed on a contact surface of the first current collector plate and the electrode terminal is located in an overlapping area of a winding center hole of an electrode assembly, the first current collector plate and the electrode terminal.
Resumen de: EP4822850A1
A battery and an electrical device, which belong to the technical field of batteries. The battery comprises a case assembly, a battery cell assembly and a heat exchange assembly, wherein the case assembly comprises a case and a first expansion beam arranged in the case, the space in the case being divided into a first space and a second space by means of the first expansion beam; the battery cell assembly is arranged in the case and located in the first space, the end of the battery cell assembly abutting against the first expansion beam; and the heat exchange assembly is arranged on the case assembly and comprises a heat exchange member, a current collector and an adapter, the heat exchange member and the battery cell assembly being arranged to allow heat exchange, the heat exchange member being in communication with the current collector, and the adapter being in communication with the current collector. A clearance space is formed between the first expansion beam and the case or on the first expansion beam; the current collector and the adapter are both arranged in the case, and at least one of the current collector and the adapter is at least partially located in the clearance space.
Nº publicación: EP4822373A2 14/10/2026
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd.
Resumen de: EP4822373A2
A battery management system according to the present disclosure includes a swelling detector including at least one sensor configured to detect a swelling status of a battery cell; and a control circuit configured to generate first time-series data of the swelling status repeatedly detected during a charging procedure included in a charge/discharge cycle of the battery cell. The control circuit is configured to determine a first change amount of the swelling status in the charging procedure from the first time-series data. The control circuit is configured to determine whether the battery cell is shorted internally based on the first change amount.
BOPI
Sede Electrónica
