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1408
resultados
Última actualización
17/12/2025 [07:14:00]
Resultados 475 a 500 de 1408
Resumen de: EP4661187A1
Disclosed is a battery pack, which includes a plurality of battery cells having a venting portion, and a pack frame configured to accommodate the plurality of battery cells and having a venting guide portion in an area corresponding to the venting portion of the plurality of battery cells.
Resumen de: EP4660651A1
A battery state of health assessment method and apparatus, a vehicle, and a storage medium. The method comprises: acquiring target working condition information of a target battery and a target cumulative charging and discharging capacity of the target battery under the target working condition, wherein the target working condition information comprises at least one of a battery temperature, a battery state of charge, and a charging mode (201); determining, from among battery health coefficients respectively corresponding to a plurality of working condition information intervals, a target battery health coefficient corresponding to the target working condition information, wherein the battery health coefficients are used for indicating the degrees of impact of different working condition information on the battery state of health (202); and determining the health degree of the target battery on the basis of the target cumulative charging and discharging capacity and the target battery health coefficient (203). A battery state of health assessment result is obtained by means of both the impact of different working conditions on the battery state of health and the cumulative charging and discharging capacities under different working conditions, so that the battery state of health assessment approach is more perfect, and the accuracy of battery state of health assessment is improved.
Resumen de: EP4661140A1
A non-aqueous electrolyte secondary battery (10) comprises: an electrode assembly (14) in which a positive electrode (11) and a negative electrode (12) are wound with a separator (13) therebetween; a non-aqueous electrolyte; and an outer can (16) that accommodates the electrode assembly (14) and the non-aqueous electrolyte. The negative electrode (12) has a negative electrode core (40), and a negative electrode mixture layer (41) provided to the surface of the negative electrode core (40). The electrode assembly (14) has, on the outer peripheral surface thereof, an exposed portion (42) in which the surface of the negative electrode core (40) is exposed, and the exposed portion (42) is in contact with an inner surface of the outer can (16). The non-aqueous electrolyte contains lithium hexafluorophosphate, and a cyclic carboxylic acid anhydride represented by formula (I).(in the formula, R1-R4 each independently represent H, an alkyl group, an alkene group, or an aryl group.)
Resumen de: EP4661107A1
A positive electrode active material for a non-aqueous electrolyte secondary battery according to the present invention has a crystal structure belonging to space group R-3m and is represented by the compositional formula LiαNaβNi1-b-cMnbXcO2-d, wherein X is at least one element selected from the group consisting of typical elements and transition metal elements other than Li, Na, Ni, and Mn, 0.80 < α ≤ 1.20, 0 < β ≤ 0.20, 0.80 < α + β ≤ 1.20, 0 < 1-b-c ≤ 1, 0 ≤ b < 1, 0 ≤ c < 1, and 0 < d ≤ 0.2.
Resumen de: EP4661195A1
This power storage device (10) comprises: an electrode body (14) in which a positive electrode plate (11) and a negative electrode plate (12) are stacked with a separator (13) therebetween; and a negative electrode current collector plate (40) disposed on one end side in the axial direction P of the electrode body (14), wherein the negative electrode current collector plate (40) has a joining part (44) which extends in the stacking direction of the positive electrode plate (11) and the negative electrode plate (12) and is joined to the negative electrode plate (12) through welding, and a melting suppression part (51) is formed on a terminal end section in the welding direction of the joining part (44).
Resumen de: EP4661106A1
A positive electrode active material of the present disclosure includes: a lithium oxide in which a transition metal M1 is dissolved to form a solid solution, the lithium oxide having an antifluorite crystal structure; and a transition metal oxide including a transition metal M2, wherein in an X-ray diffraction pattern measured for the positive electrode active material using a Cu-Kα ray, a ratio of an integrated intensity of a second diffraction peak derived from a (220) plane of the lithium oxide in a diffraction angle 2θ range from 52° to 62° to an integrated intensity of a first diffraction peak derived from a (111) plane of the lithium oxide in a diffraction angle 2θ range from 30° to 40° is 0.48 or more, and a ratio of an integrated intensity of a third diffraction peak derived from a crystal plane of the transition metal oxide in a diffraction angle 20 range from 40° to 50° to the integrated intensity of the first diffraction peak is 0.10 or more and 1.30 or less.
Resumen de: EP4661133A1
A battery 100 of the present disclosure includes a positive electrode 23, a negative electrode 26, a separator 27, and an electrolyte solution 29. The positive electrode 23 includes, as a positive electrode active material, a lithium oxide in which a transition metal is dissolved to form a solid solution, the lithium oxide having an antifluorite crystal structure. The electrolyte solution 29 includes two or more fluorine-containing lithium salts. The two or more fluorine-containing lithium salts may include a first lithium salt and a second lithium salt, and the first lithium salt may include at least one selected from the group consisting of fluorinated lithium borate and fluorinated lithium phosphate.
Resumen de: EP4661169A1
A pouch film according to the present disclosure may include a base layer; a plurality of resin layers formed on one surface and the other surface of the base layer, respectively, with the base layer interposed therebetween; and a fire-resistant coating layer formed by being coated on at least one resin layer of the plurality of resin layers.
Resumen de: WO2025196110A1
The invention relates to a medical product (1) which is provided and designed for a sterilization process, comprising: a housing (2) which forms a battery-receiving compartment that can be loaded with a battery unit (12) via an access point; and a cover (4) which is designed and configured to close the access point when the cover is engaged with the housing. The medical product also comprises a mechanical display device (6, 14, 18, 24, 26, 32, 34, 38, 46) which is provided on the housing and/or the cover and is designed to display the current loading state of the battery-receiving compartment in a visually and/or haptically recognizable manner from outside the medical product even when the access point is closed. The invention further relates to a housing for the medical product and to a cover for the housing.
Resumen de: EP4661125A1
Disclosed herein relates to an electrode transfer system for transferring electrode sheets that include electrode tabs formed at predetermined spacings on one side, including: a guide roller configured to rotate along a transfer direction of the electrode sheet and supporting the electrode sheet; and a tab guide unit configured to blow air or suck air toward opposing electrode sheets on the guide roller, wherein the tab guide unit includes: a guide member including at least one hole formed to allow air to flow in and out, and extending along a curved surface of the guide roller; and a pump unit connected to the hole to be in communication and to provide a suction force and a jet force to the guide member.
Resumen de: EP4661132A1
A battery 100 of the present disclosure includes a positive electrode 23, a negative electrode 26, a separator 27, and an electrolyte solution 29. The positive electrode 23 includes, as a positive electrode active material, a lithium oxide in which a transition metal is dissolved to form a solid solution, the lithium oxide having an antifluorite crystal structure. The electrolyte solution 29 includes a solvent mixture of a fluorinated cyclic ester and an additional solvent, and a concentration of the fluorinated cyclic ester in the electrolyte solution 29 is 75 volume% or less. The concentration of the fluorinated cyclic ester in the electrolyte solution 29 may be 2 volume% or more and 5 volume% or less.
Resumen de: EP4661131A1
A battery 100 of the present disclosure includes a positive electrode 23, a negative electrode 26, a separator 27, and an electrolyte solution 29. The positive electrode 23 includes, as a positive electrode active material, a lithium oxide in which a transition metal is dissolved to form a solid solution, the lithium oxide having an antifluorite crystal structure. The electrolyte solution 29 includes a fluorinated chain ester. A concentration of the fluorinated chain ester in the electrolyte solution 29 may be 3 volume% or more, or 5 volume% or more and 70 volume% or less.
Resumen de: EP4661130A1
A positive electrode 23 includes, as a positive electrode active material, a lithium oxide in which a transition metal is dissolved to form a solid solution, the lithium oxide having an antifluorite crystal structure. An electrolyte solution 29 includes a boron compound. The boron compound includes at least one selected from the group consisting of a compound represented by a formula (1) and a compound represented by a formula (2). The symbols R<1> to R<6> are each independently a C1 to C10 alkyl group in which at least one hydrogen atom is optionally substituted by a halogen atom or a phenyl group in which at least one hydrogen atom is optionally substituted by a halogen atom or a C1 to C10 alkyl group. At least one of R<4> to R<6> may be a hydrogen atom. B(OR<1>)(OR<2>)(OR<3>) (1) BR<4>R<5>R<6> (2)
Resumen de: EP4661105A1
A positive electrode active material for nonaqueous electrolyte secondary batteries according to one embodiment of the present disclosure has a crystal structure belonging to the space group R-3m, and is characterized by being composed of secondary particles in each of which primary particles aggregate. This positive electrode active material for nonaqueous electrolyte secondary batteries is also characterized in that: the secondary particles each comprise voids; with respect to a particle cross-section of each secondary particle, the ratio of the area of the voids to the area of the particle cross-section is 15% or less; and the average of the aspect ratios of the voids is 2.1 or more. A positive electrode active material according to the present disclosure enables a nonaqueous electrolyte secondary battery to have a higher capacity.
Resumen de: EP4661201A1
This power storage device (10) is equipped with: an electrode body (14) which comprises a positive electrode plate (11) and a negative electrode plate (12); an electrolyte; an outer can (20) which is equipped with a floor, has a cylindrical shape, is electrically connected to the negative electrode plate (12), and houses the electrode body (14) and the electrolyte therein; an opening-sealing body (30) which is electrically connected to the positive electrode plate (11) and blocks an opening in the outer can (20); a negative electrode cap (21) which is electrically connected to the outer can (20) and is provided above the outer can (20) in the axial direction P; and a gasket (33) provided between the outer can (20) and the opening-sealing body (30). Therein, a magnet (51) is provided between the negative electrode cap (21) and the opening-sealing body (30).
Resumen de: EP4661162A1
An electric battery unit (1) comprising an array of battery cells (2) disposed within a container (4) and in direct contact with a flow of a temperature-regulating liquid. The battery cells (2) are spaced from each other by spacer frames (8) which define spaces (7) between the battery cells (2), which connect an input collector chamber (5) and an output collector chamber (6) to each other. Each space (7) between the battery cells (2) communicates with the inlet collector chamber (5) and/or the outlet collector chamber (6) via one or more restricted passages (9) for the temperature-regulating liquid, formed in the respective spacer frame (8) and configured to generate sufficient resistance to the passage of the temperature-regulating liquid to prevent the temperature-regulating liquid from tending to flow to a greater extent into the spaces (7) that are closer to the inlet opening (5A) and/or the outlet opening (6A) of the container (4). Each spacer frame (8) comprises at least one portion of the frame (10) configured to break or deform or melt as a result of a local temperature and/or pressure rise resulting from a thermal runaway condition of an adjacent battery cell (2), thereby significantly increasing the flow of the temperature-regulating liquid adjacent to the cell (2) that is in the thermal runaway condition.
Resumen de: EP4661135A1
A nonaqueous electrolyte solution includes a nonaqueous solvent and a lithium salt. The nonaqueous electrolyte solution comprises a specific amount of ethylene carbonate, propylene carbonate, 1,2,3-tris(2-cyanoethoxy)propane, and a boron-containing lithium salt additive. An aggregate mass percentage of the ethylene carbonate and the 1,2,3-tris(2-cyanoethoxy)propane in the nonaqueous electrolyte solution is set to fall within a specific range. An aggregate mass percentage of the propylene carbonate and the boron-containing lithium salt additive is set to fall within a specific range. The nonaqueous electrolyte solution put into use not only alleviates the volume resistance of the positive electrode and the lithium plating on the negative electrode of the lithium-ion battery, but also enables the battery to well exert high-temperature cycling performance at 65 °C or above and low-temperature output performance at -20 °C or below in a balanced way.
Resumen de: EP4661178A1
A battery pack according to an embodiment of the present disclosure includes a battery cell stack in which a plurality of battery cells are stacked along one direction; a pack frame that houses the battery cell stack; and a thermal resin plate located between the battery cell stack and the bottom portion of the pack frame, wherein a thermal resin layer formed by applying a thermal resin is located on one surface of the thermal resin plate, and the battery cell stack is fixed to the thermal resin layer, and wherein the thermal resin plate is detachably coupled to the pack frame.
Resumen de: EP4661141A1
A disclosed nonaqueous electrolyte secondary battery includes a positive electrode (11), a negative electrode (12), a separator (50) provided between the positive electrode (11) and the negative electrode (12), and a spacer (53) provided in at least one region selected from the group consisting of a region between the positive electrode (11) and the separator (50) and a region between the negative electrode (12) and the separator (50). The negative electrode (12) is a negative electrode in which a metal used as a negative electrode active material deposits during charging and the metal dissolves during discharging. The spacer (53) contains a resin and a filler. The resin contains a cellulose-based compound.
Resumen de: EP4660484A1
A gasket is provided that enables not only reducing a reaction force in an in-use state and reducing a decrease in sealing performance, but also reducing a decrease in sealing performance relative to a high-temperature gas. A gasket (1) is a gasket made of a porous body of an elastomer that seals a 300°C gas.
Resumen de: EP4661194A1
This cylindrical nonaqueous electrolyte secondary battery includes a positive electrode (11) and a negative electrode (12). The negative electrode (12) includes: a non-facing portion (60) wound, toward a winding start side, from a facing portion (59) facing a winding inner side of a start end portion (11a) of the positive electrode (11), in a winding direction in a state in which the non-facing portion (60) does not face the positive electrode (11); and a negative electrode tab (21) joined to the non-facing portion (60). The negative electrode tab (21) includes a negative electrode facing portion (21a) facing the negative electrode (12) and a lead-out portion (21b) that is shorter in length than a portion which is of the negative electrode facing portion and has the longest length in the longitudinal direction of the negative electrode in an expanded state and is led out to the outside with respect to one end of the negative electrode in the width direction. The portion having the longest length of the negative electrode facing portion is wound around 0.75 times or more and a root portion which is the boundary of the lead-out portion with the negative electrode facing portion is wound around less than 0.5 times. At least one groove (22) extending along the width direction of the negative electrode is provided in the negative electrode facing portion.
Resumen de: EP4661192A1
This cylindrical battery (10) comprises: a bottomed external can (16) that accommodates an electrode body (14), the external can (16) having a cylindrical part (39) that includes a shoulder part (29) extending radially inward at one axial-direction end part and a grooved part (22) recessed radially inward over the entire circumferential-direction periphery, and a bottom part (31) that blocks an opening in the other axial-direction side of the cylindrical part (39); a sealing body (17) that blocks an open section of the external can (16); an upper insulation plate (18) that is positioned between the grooved part (22) and the electrode body (14); and a metal sheet (40), at least part of which is interposed between the grooved part (22) and the insulation plate (18).
Resumen de: EP4661148A1
One aspect of the present disclosure is a non-aqueous electrolyte secondary battery (10) that comprises an electrode body (14) that is formed by winding a positive electrode (11) and a negative electrode (12) with a separator (13) therebetween, a bottomed-cylindrical outer housing can (20) that accommodates the electrode body (14), a sealing body (19) that closes an opening of the outer housing can (20), an insulating plate (16) that is positioned between the electrode body (14) and a bottom part (21) of the outer housing can (20), and a spacer (28) that is positioned between the insulating plate (16) and the bottom part (21) of the outer housing can (20). The sealing body (19) has a safety valve that releases the internal pressure of the outer housing can (20) when the internal pressure has risen to at least a prescribed level. A plurality of protrusions (29) are dotted on the surface of the spacer (28) on the insulating plate (16) side.
Resumen de: EP4661175A1
The present disclosure relates to a secondary battery module frame, and provides the secondary battery module frame that includes a body having a receiving space formed therein; and a plurality of exposure holes penetrating one surface of the body and provided to expose the receiving space, wherein in the exposure hole, a matte portion formed along the perimeter of the inner surface of the exposure hole and diffusely reflecting light incident on the inner surface of the exposure hole is formed.
Nº publicación: EP4661203A1 10/12/2025
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Resumen de: EP4661203A1
Disclosed is a battery pack, and a vehicle including the same. The battery pack includes a plurality of battery modules in each of which a plurality of battery cells are stacked; a pack case in which the plurality of battery modules are accommodated; and a fireproof cover configured to cover a plurality of bus bars, which electrically connect the plurality of battery modules, to prevent an abnormal phenomenon of the bus bars when a thermal event occurs.
BOPI
Sede Electrónica
