Patent ID: 8709667
Filing Date: 2014-04-29
Classification: H01M

Abstract:
1. A magnesium metal-air battery formed by at least one battery cell, said battery cell comprising: a negative electrode formed of magnesium or its alloy; a positive current collector which is made of conductive material and which is arranged to oppose to said negative electrode; a positive electrode-side catalyst layer which is laminated on a surface of said positive current collector at a side of said negative electrode, said positive electrode-side catalyst layer including, as positive active material, at least activated carbon for absorbing oxygen in air, anhydrous poly-carboxylate, manganese and metal powder; and a separator arranged between said negative electrode and said positive electrode-side catalyst layer, said separator allowing passing of ions between said negative electrode and said positive electrode-side catalyst layer but separating or insulating said negative electrode from said positive electrode-side catalyst layer; wherein, in operation or use, where water or metalloid chloride solution is added to at least said positive electrode-side catalyst layer, an electromotive force is generated between said positive current collector and said negative electrode.