Samsung SDI Patente

The present disclosure refers to a battery module (12), comprising a plurality of first battery cell groups (15, 15.1, 15.2) and a plurality of second battery cell groups (16, 16.1, 16.2); wherein at least one of the first battery cell groups (15, 15.1, 15.2) is arranged adjacent to at least one of the second battery cell groups (16, 16.1, 16.2); wherein each of the first battery cell groups (15, 15.1, 15.2) and each of the second battery cell groups (16, 16.1, 16.2) comprises a plurality of stacked prismatic battery cells (20, 20.1, 20.2, 20.3, 20.4, 20.5, 20.6, 20.7); wherein the first battery cell groups (15, 15.1, 15.2) and second battery cell groups (16, 16.1, 16.2) are alternatingly stacked; and wherein the battery cells (20, 20.1, 20.2, 20.3, 20.4, 20.5, 20.6, 20.7) of the first battery cell group (15, 15.1, 15.2) are oriented orthogonally to the battery cells (20, 20.1, 20.2, 20.3, 20.4, 20.5, 20.6, 20.7) of the second battery cell group (16, 16.1, 16.2). The present disclosure also refers to a battery pack (10), an electric vehicle (300), and to a method for assembly of a battery module (12).

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An embodiment of the present invention relates to a cylindrical secondary battery that may comprise: an electrode assembly; a cylindrical can in which the electrode assembly is accommodated; and a cap assembly which is coupled to the can, is electrically connected to the electrode assembly, is insulated from the can, and includes a cap-up exposed to the outside, a cap-down supporting the cap-up, a vent plate arranged between the cap-up and the cap-down to be spaced apart from the cap-down and having at least one notch formed therein, and an insulator made of an insulating material and disposed between the cap-up and the cap-down and the can, wherein the cap-up includes a plurality of piercing holes formed through a plate surface, a plurality of bridges arranged between the piercing holes, and a plurality of discharge holes formed through the plate surface and spaced apart from the piercing holes. According to an embodiment of the present invention, the discharge direction of internal gas within the secondary battery is not bent and the gas can be discharged in a straight direction, so that the internal gas can be quickly discharged.

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Provided are an anode for lithium metal batteries, a lithium metal battery including the same, and a method of manufacturing the anode for lithium metal batteries. The anode for lithium metal batteries includes: an anode current collector; and a protective layer disposed on the anode current collector, wherein an anode active material layer is disposed or absent between the anode current collector and the protective layer, the protective layer comprises sulfurized polyacrylonitrile (SPAN), and the anode active material layer comprises lithium metal or a lithium alloy.

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Provided is an organic optoelectronic device and display device including an anode and a cathode facing each other, an intermediate layer between the anode and the cathode, wherein the intermediate layer includes a first light emitting layer and a second light emitting layer, the first light emitting layer is disposed between an anode and a second light emitting layer, and includes a first host including a composition of a first compound and a second compound, and a first dopant, the second light emitting layer is disposed between the cathode and the first light emitting layer, and includes a second host including a composition of a third compound and a fourth compound and a second dopant, the first dopant is an iridium complex and the second dopant is a platinum complex, and the organic optoelectronic device satisfies Formula 1: hole trap index of the first light emitting layer > hole trap index of the second light emitting layerThe hole trap index is calculated according to Formula 2: hole trap index = [1 - {(current density measured at 7 V voltage after doping the dopant in the light emitting layer in HOD (Hole Only Device))/(current density measured at 7 V voltage before doping the dopant in the light emitting layer in HOD (Hole Only Device))}] * 100,HOD: ITO/Compound E (1,400 Å)/Compound F (1% NDP-9 doping, 100 Å)/Compound F (200 Å)/light emitting layer (400 Å)/ HAT-CN (100 Å) / Ag (50 Å) / Mg:Ag (9:1, 550 Å);Compound E: N-([1,1'-biphenyl]-4-yl)-9,9-dimethyl-N-(4-(9-phenyl-9H-carbazol-3-yl)phenyl)-9H-fluoren-2-amine; andCompound F: N-([1,1'-biphenyl]-4-yl)-N-(2-(9,9-diphenyl-9H-fluoren-4-yl)phenyl)-9,9-dimethyl-9H-fluoren-2-amine).

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