Nickel foil for nickel-hydrogen secondary battery current collector and method for producing the same

摘要

PROBLEM TO BE SOLVED: To provide metal foil for a secondary battery negative electrode, having superior active material holding property and electrical conductivity. SOLUTION: This metal foil is used in the secondary battery collector, and satisfies 4.9108 =TSY=31108 , and 4.5=-(0.0005T2 )=15, if thickness(T) is 8-40 m, rupture strength is defined as (S, MPa), an elongation at rupture is (, %), and Young's modulus is (Y, MPa). This foil is preferably a nickel foil and can be manufactured by softening and annealing the metal foil prepared through electrolytic deposition method.