Patent ID: 8048558

Claim:
A nickel-zinc rechargeable battery cell, the battery comprising: (a) a base metal can having a bottom and a cylindrical side, said base metal can comprising a first anticorrosive material coated, plated or clad onto the base metal can or residing between the base metal can and electrode material, the first anticorrosive material selected from the group consisting of tin, copper/tin alloy, zinc, silver, conductive carbon, brass, a non-wettable polymer layer and combinations thereof; (b) a negative current collector disk disposed at the bottom of the can and in electrical contact with the can; (c) a jelly roll comprising a positive electrode, a negative electrode, and one or more separators in between, said jelly roll is disposed above the negative current collector disk and said negative electrode is in electrical contact with the negative current collector disk; (d) a positive current collector disk disposed above of the jelly roll and in electrical contact with the positive electrode; (e) a vent assembly disposed on top of the positive current collector disk, said vent assembly is electrically connected with the positive current collector disk and electrically insulated from the can; and (f) an alkaline electrolyte.