Abstract: A coated steel sheet for alkaline dry cell positive electrode cans, comprising a Ni-electroplated steel sheet having a chemical conversion coating formed on the surface thereof, and further formed thereon a resin coating film containing a conductive agent, wherein said coated steel sheet has a Ni coating layer made to have a hardness of from 300 to 650 as Vickers hardness. This coated steel sheet promises a superior coating adhesion after worked into positive electrode cans by pressing.
Abstract: A coated metal sheet for alkaline dry cell positive electrode cans, comprising a metal sheet covered via a chromate film, preferably a chromate film containing carbon black, with a coating film mainly composed of at least one of an epoxy resin, an epoxy-acrylic resin and a polyester resin, containing at least one of graphite powder having a purity of not less than 95%, an aspect ratio of not less than 50 and an average particle diameter of not larger than 50 .mu.m and carbon black having an oil absorption of not less than 250 ml/100 g as measured using DBP, or a coating film further incorporated with a cross-linking agent. This coated metal sheet may be only worked by drawing to produce the positive electrode cans.