Battery can and manufacturing method thereof and battery using the same

摘要

A battery can having an opening, comprising a cylindrical side wall and a bottom, wherein said battery can is formed from a steel plate, and said steel plate has a carbon content of 0.004% by weight or less, and wherein a matte or semi-bright nickel layer of 0.5 to 3 µm in thickness is formed on an inner face of the battery can, with a nickel-iron alloy layer of 0.5 to 3 µm in thickness interposed between the matte or semi-bright nickel layer and the inner face of the battery can, and a bright nickel layer of 0.5 to 3 µm in thickness is further formed on the matte or semi-bright nickel layer.