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1500
resultados
Última actualización
27/06/2026 [07:57:00]
Resultados 400 a 425 de 1500
Resumen de: EP4763515A1
0001 The present invention relates to a pouch film laminate in which a base material layer; a gas barrier layer; and a sealant layer are sequentially laminated, wherein the sealant layer includes a first sealant layer including a polypropylene random copolymer and a second sealant layer including crosslinked polypropylene, and a degree of crosslinking of the second sealant layer is in a range of 52% to 80%.
Resumen de: EP4765454A1
0001 A battery cell according to one embodiment of the present disclosure includes an electrode assembly in which a first electrode, a second electrode, and a separator interposed therebetween are wound around a winding axis, wherein the first electrode includes a first uncoated portion that is not coated with an active material layer at a long side end along the winding direction and is exposed to the outside of the separator, and at least a part of the first uncoated portion is used as an electrode tab in itself; a battery housing including an opening on one side and configured to accommodate the electrode assembly through the opening; a cell terminal configured to pass through a surface positioned on an opposite side of the opening of the battery housing; and a current collector including a first uncoated portion coupling part disposed on one side of the electrode assembly and configured to be welded to the first uncoated portion, a terminal coupling part spaced apart from the first uncoated portion coupling part and configured to be welded to the cell terminal, and a connection area provided between the first uncoated portion coupling part and the terminal coupling part, wherein the connection area includes a plurality of slits spaced apart at regular intervals in the circumferential direction and having a convex shape toward an outer side in the radial direction.
Resumen de: EP4765467A1
0001 A battery cell according to an embodiment of the present disclosure may include an electrode assembly in which a first electrode, a second electrode, and a separator interposed therebetween are wound around a winding axis; a can configured to accommodate the electrode assembly through an opened end formed on one side; a lid covering the opened end and having an injection port; a sealing member that has a sealing portion configured to be inserted into at least a part of the injection port and a welded portion configured to cover the injection port on an upper side of the lid and to be mutually welded to the lid, and is configured to seal the injection port; and a gasket surrounding at least a part of the sealing member.
Resumen de: EP4765217A1
0001 A calendering system according to the present disclosure includes a calendering apparatus configured to compress a mixture including an active material and a binder, the calendering apparatus including a calender roll having an overlapping area positioned to overlap with the mixture and a non-overlapping area positioned to limit overlapping with the mixture; a pair of sensor devices configured to sense the mixture having a pair of edges adjacent to the non-overlapping area and the non-overlapping area; and a control unit configured to determine a thickness at each of the pair of edges of the mixture based on information of the mixture and the non-overlapping area sensed by the pair of sensor devices.
Resumen de: EP4764542A1
0001 A battery management apparatus according to an embodiment disclosed herein includes an interface configured to obtain a plurality of first voltage profiles indicating a voltage change of each of a plurality of battery cells over time and a processor configured to divide the first voltage profile into a plurality of time windows and generate a second voltage profile of each of the plurality of battery cells based on an average variance of a voltage of each of the plurality of battery cells corresponding to each of the plurality of time windows and calculate, based on the second voltage profile, a first voltage parameter related to a deviation between second voltage profile values in adjacent time windows among the plurality of time windows and a second voltage parameter related to a deviation of the second voltage profile value in a same time window among the plurality of time windows to detect whether the plurality of battery cells are abnormal.
Resumen de: EP4764565A1
According to some embodiments, a battery management device includes a data acquisition unit configured to acquire battery data from a multi-pack battery including a main battery pack and one or more sub-battery packs, and a control unit configured to determine whether the multi-pack battery enters a rest mode based on the battery data, select a charge battery pack and a discharge battery pack from the multi-pack battery based on the battery data when entering the rest mode, and perform pack activation for providing power of the discharge battery pack to the charge battery pack.
Resumen de: EP4763482A1
The present invention relates to an apparatus and method for manufacturing a secondary battery, and more particularly, to an apparatus for manufacturing a secondary battery, in which, in a post-processing process of a pouch-type secondary battery, main sealing is enabled in a state, in which the secondary battery stands vertically, to eliminate processes such as pre-sealing and pre-cutting, thereby reducing an manufacturing equipment layout and reducing a cost of a pouch through reduction of a pouch gas pocket part.
Resumen de: EP4764526A1
According to an embodiment disclosed herein, a battery diagnostic device may include an information acquisition unit configured to acquire battery data in a charge/discharge cycle of each of a plurality of battery cells included in a battery pack and a controller configured to calculate predicted data that predicts an abnormality of each of the plurality of battery cells for each charge/discharge cycle of the battery cell based on the battery data, preprocess the predicted data in at least one manner, and derive a diagnosis result for each charge/discharge cycle of each of the plurality of battery cells based on the preprocessed predicted data.
Resumen de: EP4765447A1
0001 The present disclosure relates to an electrode lead and a method for manufacturing an electrode lead, and more specifically, to an electrode lead connected to an electrode assembly of a secondary battery that can be repeatedly charged and discharged and a method for manufacturing such an electrode lead. An electrode lead according to an embodiment of the present disclosure may include a first portion coupled to an electrode tab of an electrode assembly of a secondary battery; and a second portion connected to the first portion and protruding to the outside of a case of the secondary battery, wherein the first portion may be formed to have a narrower width than the second portion, and a plating layer may be formed on at least a part of the first portion and the second portion.
Resumen de: EP4763806A1
0001 The present disclosure provides a battery cathode material, including a lithium nickel manganese oxide powder, a crystal structure of the lithium nickel manganese oxide powder is single crystal, a particle size span of the lithium nickel manganese oxide powder is less than 5, and the particle size span is (D<90>-D<10>)/D<50> from a particle size distribution.
Resumen de: EP4765229A1
The present disclosure relates to a positive electrode for an all-solid-state battery and an all-solid-state battery including the same. More specifically, by using two types of positive electrode active materials having different nickel contents and particle sizes (D50) as positive electrode active materials, the porosity of the positive electrode is reduced, and the life deterioration phenomenon due to shrinkage and expansion of the positive electrode material included in the positive electrode is improved, thereby exhibiting an effect of improving the energy density and life characteristics of the all-solid-state battery.
Resumen de: EP4765381A1
A battery cell according to an embodiment of the present disclosure includes a first outer packaging including a first metal layer and a resin layer attached to an inner surface of the first metal layer; a second outer packaging including a second metal layer; an electrode assembly housed between the first outer packaging and the second outer packaging; an adhesion portion in which the resin layer and the second metal layer are adhered to each other; a folding portion formed by folding an edge portion of the second outer packaging around an edge portion of the first outer packaging; and a weld portion in which the first metal layer and the second metal layer are welded together in the folding portion.
Resumen de: EP4764933A1
0001 A heat generation simulation device according to an embodiment disclosed herein may include an initial value setting unit configured to set an initial value including information regarding a battery and charge/discharge information, a model generation unit configured to generate a three-dimensional model of the battery, a heat flux identification unit configured to identify an internal heat flux of the battery using an electrochemical model based on the initial value, and an information generation unit configured to generate simulation information related to heat generation of the battery based on the heat flux.
Resumen de: EP4765320A1
0001 A battery management device according to an embodiment of this document includes a conversion circuit configured to switch an electrical connection between a first battery pack and a second battery pack, and one or more processors configured to determine, based on an operation mode of a battery system including the first battery pack and the second battery pack, a connection mode including a multi-connection mode or a single connection mode between the first battery pack and the second battery pack and a load connected to the battery system and manage an operation of the battery system by controlling the conversion circuit based on the connection mode.
Resumen de: EP4765368A1
0001 The present invention relates to a pouch film laminate including a base material layer, a gas barrier layer, and a sealant layer which are sequentially laminated, wherein the pouch film laminate includes a silicone-based release coating layer coated on the sealant layer, the silicone-based release coating layer has a thickness of 1 µm or less, and the silicone-based release coating layer includes a silicone-based release agent, wherein the silicone-based release agent is a cross-linked silicone-based polymer having a weight-average molecular weight of less than 1,000,000 g/mol.
Resumen de: EP4765340A1
The present disclosure relates to an electrode assembly, a secondary battery, and a battery unit, and more specifically, to an electrode assembly, a secondary battery, and a battery unit capable of efficient heat exchange. An electrode assembly according to an embodiment of the present disclosure may include a plurality of electrodes, a separator interposed between the plurality of electrodes, and a plurality of protrusions protruding to one side from the plurality of electrodes, wherein the plurality of protrusions may be at least partially non-overlapping with each other in a thickness direction of the plurality of electrodes, wherein a protrusion of the plurality of protrusions may include a first part extending along a longitudinal direction of the plurality of electrodes, and a second part connecting an electrode of the plurality of electrodes and the first part, and the width of the second part may be formed narrower than the width of the first part.
Resumen de: EP4765445A1
0001 The present disclosure relates to a method of manufacturing a secondary battery, a secondary battery, a battery module including the same, a battery pack, and a vehicle. A current collector according to the present disclosure includes a slit portion in which a plurality of slits are formed in a thickness direction of an electrode assembly, and a connection portion connected to one side of the slit portion and including a support portion and a current collecting protrusion. The present disclosure may minimize wasted space in a secondary battery casing when welding a large number of foil tabs and a current collector, reduce the production cost, and enable the current collector and an electrode terminal to be easily coupled.
Resumen de: EP4764553A1
0001 According to an embodiment disclosed in this document, there is provided a battery diagnosis device including an interface for acquiring voltage data representing a voltage of a battery cell relative to a capacity of the battery cell and at least one processor, in which the at least one processor is configured to identify first voltage change data of the battery cell acquired in a middle of life (MOL) state, identify a first data range related to a positive electrode of the battery cell in the first voltage change data, transform first sub-data corresponding to the first data range into first linear data in first voltage data corresponding to the first voltage change data based on linear regression, and acquire a positive electrode loss value related to damage to the positive electrode based on the first linear data and diagnose a state of the battery cell based on the positive electrode loss value.
Resumen de: EP4764015A1
The present invention relates to a method of recovering lithium. More particularly, the present invention relates to a method of recovering lithium, the method including step (a) of adding a portion of a cathode material powder including a cathode active material with an olivine structure and an aqueous hydrogen peroxide solution to an acidic solution to form a first leachate and a first leaching residue; step (b) of separating the first leachate and the first leaching residue; step (c) of adding an aqueous hydrogen peroxide solution and a remaining portion of the cathode material powder of step (a) to the separated first leachate to form a second leachate and a second leaching residue; and step (d) of separating the second leachate and the second leaching residue, wherein the weight of the cathode material powder added in step (c) is 0.16 to 1.45 times the weight of the cathode material powder added into the acidic solution in step (a).According to the present invention, the present invention has an effect of providing a method of recovering lithium. According to the method of the present invention, by adding a portion of a waste cathode material powder including a cathode active material with an olivine structure to an acidic solution and then adding an aqueous hydrogen peroxide solution thereto to obtain a leachate, and adding an aqueous hydrogen peroxide solution and the remaining portion of the waste cathode material powder to the leachate to increase the pH of the leach
Resumen de: EP4765380A1
The present disclosure relates to a secondary battery and a method for manufacturing the same, and the secondary battery according to an aspect of the present disclosure includes an electrode assembly extending in a direction; a cap including a cover portion disposed at one side of the electrode assembly in a length direction; and an outer packaging film including an accommodation portion that wraps the electrode assembly in a peripheral direction and an edge portion disposed at one side of the accommodation portion in a width direction, and having one surface that contacts an outer surface of the cover portion, wherein the cap further includes a reinforcement portion disposed opposite the cover portion with the edge portion positioned therebetween; and a cap-side connection portion connecting the reinforcement portion to the cover portion.
Resumen de: EP4765458A1
0001 A battery cell according to one embodiment of the present disclosure includes an electrode assembly in which a first electrode, a second electrode, and a separator interposed therebetween are wound around a winding axis to define a core and an outer circumferential surface, wherein the first electrode includes a first uncoated portion that is not coated with an active material layer along the winding direction; a battery housing including an opening on one side and configured to accommodate the electrode assembly through the opening; a cell terminal that penetrates a closed portion of the battery housing positioned on the opposite side of the opening and is exposed to the outside of the battery housing, is electrically connected to the first uncoated portion, and has at least one fixing structure provided in a direction facing the outside of the battery housing; and an insulating gasket interposed between the battery housing and the cell terminal on the closed portion side of the battery housing.
Resumen de: EP4763357A1
0001 According to exemplary embodiments, a die coater is provided. The die coater includes a first die including a manifold; and a shim coupled to the first die, wherein the shim includes a body shim extending in a first direction and a spacer shim extending in a second direction perpendicular to the first direction and dividing the manifold, the spacer shim defines an insulation flow path configured to discharge insulation slurry, the insulation flow path includes an inlet port, a first insulation flow path connected to the inlet port, and a second insulation flow path connecting an outlet port and the first insulation flow path, and the second insulation flow path may have a slope toward the outlet port
Resumen de: EP4765455A1
0001 A battery cell according to one embodiment of the present disclosure includes an electrode assembly in which a first electrode, a second electrode, and a separator interposed therebetween are wound around a winding axis, wherein the first electrode includes a first uncoated portion that is not coated with an active material layer at a long side end along the winding direction and is exposed to the outside of the separator, and at least a part of the first uncoated portion is used as an electrode tab in itself; a battery housing including an opening on one side and configured to accommodate the electrode assembly through the opening; a cell terminal configured to pass through a surface positioned on an opposite side of the opening of the battery housing; and a current collector including a first uncoated portion coupling part disposed on one side of the electrode assembly and configured to be welded to the first uncoated portion, a terminal coupling part spaced apart from the first uncoated portion coupling part and configured to be welded to the cell terminal, and a connection area provided between the first uncoated portion coupling part and the terminal coupling part, wherein the connection area includes a plurality of slits spaced apart at regular intervals in the circumferential direction and having a convex shape toward an inner side in the radial direction.
Resumen de: EP4765227A1
The present invention provides a positive electrode including a positive electrode composite layer containing a positive electrode active material in a single-particle form having a cumulative volume particle size distribution satisfying Expression 1 below, wherein the positive electrode active material in a single-particle form has an average particle diameter of 4 µm to 10 µm. 0.6≤SL/SR+SL≤0.8In Expression 1 above, SR above is an integrated area of a region to the right of a particle size with a maximum peak in a log-scale cumulative volume particle size distribution graph of the positive electrode active material in a single-particle form included in the positive electrode, and SL above is an integrated area of a region to the left of the particle size with the maximum peak in the log-scale cumulative volume particle size distribution graph of the positive electrode active material in a single-particle form included in the positive electrode.
Nº publicación: EP4764546A1 24/06/2026
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd.
Resumen de: EP4764546A1
A battery management device according to an embodiment disclosed in this document includes an interface configured to acquire a voltage profile representing a change in voltage of each of a plurality of battery cells over time and a processor configured to divide the voltage profile into a plurality of time sections and detect whether the plurality of battery cells are abnormal based on a first voltage parameter related to an average voltage of the plurality of battery cells corresponding to each of the plurality of time sections, and a second voltage parameter related to a difference between the first voltage parameters between adjacent time sections among the plurality of time sections.
BOPI
Sede Electrónica
