To provide a plated steel plate for a battery case which is capable of attaining high efficiency discharge characteristic by securing sufficient adhesiveness of the inner surface of the battery case to a positive electrode mixture to prevent the increase of contact resistance after the long term preservation of the battery and improving conductivity in an alkali electrolyte.
The plated steel plate is obtained by plating nickel on the surface of a steel plate to become the inner surface of the battery case or plating nickel and heat-treating under a non-oxidation atmosphere and after that, plating a nickel-tungsten alloy or by plating nickel and successively plating the nickel-tungsten alloy and after that, heat-treating under the non-oxidation atmosphere. The treated steel plate is formed to be applied for the battery case.
TOMOMORI TATSUO
HONDA YOSHITAKA
YAMANE EIJI
OKAMATSU EIJI
