ALUMINUM ALLOY FOIL FOR ELECTRODE COLLECTORS AND PRODUCTION METHOD THEREFOR

摘要

An object of the present invention is to provide an aluminum alloy foil for an electrode current collector, the foil having a high strength after the drying step while keeping a high electrical conductivity. Disclosed is a method for manufacturing an aluminum alloy foil for electrode current collector, including: maintaining an aluminum alloy ingot comprising 0.1 to 0.5% 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 being Al and unavoidable impurities, at 550 to 620°C for 1 to 20 hours, 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.