In this work, we examined the possibility of a Li-O2 based battery. The reason for a lithiumbased battery instead of magnesium or aluminum is because of the availability of cation solid electrolytes for lithium ions, and because of the instabilities of aluminum and magnesium chloride salts when exposed to air. Due to these considerations, we chose to use Li6.4La2.8Al0.2Zr1.4Ta0.6O12