SURFACE TREATED STEEL PLATE FOR BATTERY CONTAINER, BATTERY CONTAINER, AND BATTERY

摘要

Provided is a surface treated steel plate for a battery container that has a nickel-cobalt alloy layer formed on the outermost surface of a surface that forms the inner surface of a battery container. The surface treated steel plate for a battery container is characterized by equation (1) being satisfied when the concentration of potassium hydroxide in an aqueous solution of potassium hydroxide is x% by weight (here, 30 <= x <= 50), and when y (mV) is the difference in potential of the immersion potential of the nickel-cobalt alloy layer with immersion in the aqueous solution of potassium hydroxide with the concentration of x% by weight, with respect to the immersion potential of cobalt. y >= -0.984x + 136.7 ... (1)