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1039
results.
Updated on
17/07/2026 [07:34:00]
Results 1025 to 1039 of 1039
Absstract of: EP4772287A1
0001 An apparatus for drying a coated electrode includes a perforated plate nozzle located above a transfer path for the coated electrode. A duct is provided to connect to an area of the perforated plate nozzle that does not face the coated electrode among areas of the perforated plate nozzle. The duct may supply hot air flowing outside opposite ends of the coated electrode to a lower portion of the coated electrode.
Absstract of: EP4773231A2
0001 Disclosed are a positive electrode for a rechargeable lithium battery, and an electrode assembly for a rechargeable lithium battery including the positive electrode, and a rechargeable lithium battery. The positive electrode includes a positive electrode current collector, a positive electrode active material layer on at least one surface of the positive electrode current collector, and an insulating layer on at least one surface of the positive electrode current collector. The positive electrode active material layer includes a first positive electrode active material layer having a constant thickness, and a second positive electrode active material layer located at an edge portion of the positive electrode current collector and having a thickness of about 10% to about 80% of the thickness of the first positive electrode active material layer. The insulating layer is disposed on the second positive electrode active material layer.
Absstract of: EP4772895A1
According to exemplary embodiments, a method for generating a recipe for MSCC (Multi-Step Constant Current) charging is provided. The method includes: charging a modeling cell to collect charging data of the modeling cell; deriving a current-capacitance model based on the charging data; and generating a recipe for MSCC (Multi-Step Constant Current) charging based on the current-capacitance model.
Absstract of: EP4773210A1
0001 The present application provides a pole piece, a preparation method thereof and a battery. The pole piece includes a current collector and a composite layer, and the composite layer is disposed on the current collector. The composite layer includes a first active material layer, and the first active material layer has a first surface away from the current collector. A recess extending from the first surface to inside of the first active material layer is defined on the first active material layer.
Absstract of: EP4773191A1
0001 An electrode groove forming apparatus according to the present disclosure is configured to form an electrode groove on an electrode, and includes a roller body configured to rotate, a stage configured to support the electrode, and a protrusion protruding from an extension start point on the roller body. The protrusion includes a portion having a predetermined angle relative to an imaginary line extending from a center of the roller body toward the extension start point.
Absstract of: EP4773424A1
To achieve the above object, a battery module according to an exemplary embodiment of the present disclosure may include a cell frame configured to accommodate a battery cell; a bracket mounted on the cell frame; a fixing member mounted to the bracket and configured to secure a wire harness arranged above the bracket; and a fastening member configured to fasten the cell frame and the bracket.
Absstract of: EP4772303A1
A tab notching apparatus according to the present disclosure includes a suction pipe having a suction hole through which a residual scrap moves, the residual scrap being formed in forming an electrode tab, and a cutting device configured to cut the residual scrap moving toward the suction hole, wherein the cutting device includes a cutter configured to slidably move.
Absstract of: EP4773422A1
0001 A battery includes a battery housing, an electrode assembly housed in the battery housing, a terminal gasket positioned in a through-hole extending through an end wall of the battery housing, an electrode terminal positioned within the terminal gasket so as to be spaced from the end wall, and a deformable element positioned between the end wall and the electrode terminal to bias the electrode terminal towards the end wall. 0002 The battery housing has a first electrical polarity, and the electrode terminal has an opposite second electrical polarity. The biasing element may be a spring washer in a compressed state. The biasing element has a higher melting point than the terminal gasket. 0003 Accordingly, upon melting of the terminal gasket during thermal runaway, the deformable element returns towards an undeformed state to cause the electrode terminal to electrically contact the battery housing to induce a short circuit.
Absstract of: EP4773420A1
A pole, a cover assembly, and a cell are provided, which relates to the field of cell technologies. The pole includes a body having a first surface, and the first surface defines a tab welding groove; The tab welding groove includes at least one groove sidewall, the groove sidewall is configured to be in contact with the tab of the cell, and a plane where the groove sidewall is located is gradually inclined toward an axis of the pole in a direction away from the first surface.
Absstract of: EP4773327A1
0001 The present disclosure relates to an electrode assembly and a secondary battery including the same, and more specifically, to an electrode assembly and a secondary battery including the same that may enable good electrolyte impregnation near the center part of the electrode assembly where compressive stress is high, thereby suppressing lithium deposition and thus controlling a phenomenon where the swelling of the electrode assembly is accelerated, and furthermore, may ultimately suppress the risk of rupture and abnormal heating behavior in the battery case.
Absstract of: EP4773335A1
0001 Disclosed herein is a method for detecting fire in ESSs using cloud services. The method for detecting fire in ESSs includes receiving battery status data from battery management systems via a server, and analyzing the received battery status data to determine whether a fire occurs. It is possible to detect whether a fire has occurred in an ESS without installing a separate fire sensor in the ESS.
Absstract of: EP4773218A1
0001 The present invention relates to a positive electrode comprising a current collector, and a positive electrode active material layer disposed on the current collector, wherein the positive electrode active material layer comprises a positive electrode active material, a conductive material, and a binder, the positive electrode active material comprises a lithium iron phosphate-based compound, the conductive material comprises carbon black, and a value of R represented by Equation 1 below is 500 to 1300, and a lithium secondary battery comprising the same. R = {Oxygen content value of conductive material x BET specific surface area value of conductive material} / Average particle diameter (D<50>) value of positive electrode active material
0002 In Equation 1, the oxygen content value (at%) of conductive material, the BET specific surface area value (m<2>/g) of conductive material, and the average particle diameter (D<50>) value (µm) of positive electrode active material are unitless numbers with the units omitted.
Absstract of: EP4773217A1
The present invention relates to a positive electrode comprising a current collector, and a positive electrode active material layer disposed on the current collector, wherein the positive electrode active material layer comprises a positive electrode active material, a conductive agent, and a binder, the positive electrode active material comprises a lithium iron phosphate-based compound, the conductive agent comprises carbon black, the conductive agent has a BET specific surface area of 200 m2/g to 400 m2/g, and a value of R1 represented by Equation 1 below is 180 to 500, and a lithium secondary battery comprising the same. R1 = {Average particle diameter (D50) value of positive electrode active material x BET specific surface area value of conductive agent} / Average particle diameter (D50) value of conductive agent2In Equation 1, the average particle diameter (D50) value (µm) of positive electrode active material, the BET specific surface area value (m2/g) of conductive agent, and the average particle diameter (D50) value (µm) of conductive agent are dimensionless numbers with the units omitted.
Nº publicación: EP4773308A1 08/07/2026
Applicant:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd.
Absstract of: EP4773308A1
0001 The present specification relates to a method for manufacturing a lithium secondary battery and a lithium secondary battery. According to one embodiment of the present invention, provided is a method for manufacturing a lithium secondary battery, the method comprising the steps of: injecting a first electrolyte solution into a battery case in which an electrode assembly including a positive electrode and a negative electrode is accommodated; performing a first activation process after injecting the first electrolyte solution; injecting a second electrolyte solution different from the first electrolyte solution into the battery case in which the first activation process has been performed; and performing a second activation process after injecting the second electrolyte solution, wherein the lithium salt concentration of the first electrolyte solution is greater than the lithium salt concentration of the second electrolyte solution, and the difference between the lithium salt concentrations of the first electrolyte solution and the second electrolyte solution satisfies a specific range.
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