Aluminum alloy foil for electrode collectors and production method therefor

An aluminum alloy foil for electrode current collector, manufactured by the process including:

• maintaining an aluminum alloy ingot at 550 to 620° C. for 1 to 20 hours, wherein the aluminum alloy ingot comprises 0.1 to 0.5 mass % (hereinafter referred to as %) of Fe, 0.01 to 0.3% of Si, 0.01 to 0.2% of Cu, 0.01% or less of Mn, with the rest consisting of Al and unavoidable impurities;
• and
• subjecting the resulting ingot under a hot rolling with a starting temperature of 500° C. or higher and an end-point temperature of 255 to 300° C., wherein
• tensile strength of the aluminum alloy foil is 220 MPa or higher, 0.2% yield strength of the aluminum alloy foil is 180 MPa or higher, electrical conductivity of the aluminum alloy foil is 58% International Annealed Copper Standard (IACS) or higher, a solid solution of Fe formed in the aluminum alloy foil is 100 ppm or higher, a solid solution of Si formed in the aluminum alloy foil is 80 to 1800 ppm, and a solid solution of Cu formed in the aluminum alloy foil is 80 to 1500 ppm.