Patent ID: 8617750
Filing Date: 2013-12-31
Classification: C23C,C25D,C25F,H01M

Abstract:
1. A metal air battery, comprising: a composite anode comprising an anode core and a corrosion resistant coating coupled to a surface of the anode core, wherein the anode core comprises a first metal and the corrosion resistant coating comprises a second metal that is different from the first metal; a cathode configured to discharge a positive charge from the metal air battery; a deplating electrode configured to at least partially electropolish the corrosion resistant coating from the composite anode over two or more stages, wherein an initial portion of the corrosion resistant coating is removed during initial operation and one or more subsequent portions of the corrosion resistant coating are removed during one or more subsequent operations; a battery housing; and an electrolyte stored in the battery housing in contact with the cathode, the composite anode, and the deplating electrode, wherein: