ELECTRODE ACTIVE MATERIAL FOR MAGNESIUM BATTERY, ELECTRODE AND MAGNESIUM BATTERY COMPRISING THE SAME, AND ELECTRODE ACTIVE MATERIAL PREPARATION METHOD FOR MAGNESIUM BATTERY

摘要

Disclosed is an electrode active material for a magnesium battery, which is represented by a chemical formula 1 below and comprises transition metal composite oxides containing 60% or more of cubic -MnO2 phase of a cubic structure, an electrode and a magnesium battery comprising the same, and a method for manufacturing an electrode active material for a magnesium battery. The chemical formula 1 is M_xMn_yO_z, wherein 0 x = 1, 0.25 = y = 1, 1= z 3; and M is at least one kind of metal selected from Mg^2+, Ca^2+, Na^+, K^+, and Zn^2+.