Abstract: An aluminum pouch film for a secondary battery is disclosed. The aluminum pouch film contains an aluminum film layer; an outer resin layer laminated on one surface of the aluminum film layer; and an inner resin layer laminated on the other surface of the aluminum film layer. The inner resin layer contains a polyolefin resin, an ethylene vinyl alcohol copolymer (EVOH) and an ionomer resin.

Abstract: Disclosed herein is a battery cell configured to have a structure in which an electrode assembly is mounted in a battery case formed of a laminate sheet including a resin layer and a metal layer in a state in which the electrode assembly are connected to electrode terminals protruding outward from the battery case. The electrode assembly is configured such that separators are respectively disposed between cathodes and anodes, each of which is formed by applying a compound including an electrode active material to a current collector. At least a portion of an inside of the battery case corresponding to an outer circumference of the electrode assembly has an upward sloping structure in which a width of the battery case increases upward in vertical section or a downward sloping structure in which the width of the battery case increases downward in vertical section.

Abstract: Disclosed herein are a battery cell including an electrode assembly configured to have a structure including cathodes, anodes, and separators respectively disposed between the cathodes and the anodes, the electrode assembly being provided with a through hole in a direction in which the electrodes are stacked, and a battery case provided at each side thereof with an opening communicating with the through hole and a battery pack including the same.

Abstract: Disclosed herein are an electrode assembly and a composite electrode assembly mounted in a battery case of a secondary battery. The electrode assembly and the composite electrode assembly have a stair-like structure. The stair-like structure is formed based on the curvature of a device to utilize a dead space of the device, thereby improving the capacity of the device per unit volume.

Abstract: Disclosed herein are a battery cell including an electrode assembly configured to have a structure including cathodes, anodes, and separators respectively disposed between the cathodes and the anodes, the electrode assembly being provided with a through hole in a direction in which the electrodes are stacked, and a battery case provided at each side thereof with an opening communicating with the through hole and a battery pack including the same.

Abstract: Disclosed herein is a battery cell configured to have a structure in which an electrode assembly is mounted in a battery case formed of a laminate sheet including a resin layer and a metal layer in a state in which the electrode assembly are connected to electrode terminals protruding outward from the battery case. The electrode assembly is configured such that separators are respectively disposed between cathodes and anodes, each of which is formed by applying a compound including an electrode active material to a current collector. At least a portion of an inside of the battery case corresponding to an outer circumference of the electrode assembly has an upward sloping structure in which a width of the battery case increases upward in vertical section or a downward sloping structure in which the width of the battery case increases downward in vertical section.

Abstract: Disclosed herein are an electrode assembly and a composite electrode assembly mounted in a battery case of a secondary battery. The electrode assembly and the composite electrode assembly have a stair-like structure. The stair-like structure is formed based on the curvature of a device to utilize a dead space of the device, thereby improving the capacity of the device per unit volume.