Mg-air oxygen shuttle batteries using a ZrO2-based oxide ion-conducting electrolyte

A new concept of an oxygen shuttle'' type battery for Mg-air solid oxide batteries using a Ca-stabilized ZrO2 electrolyte was proposed and studied. The observed open circuit potential and discharge capacity were 1.81 V and 1154 mA h g(Mg)(-1) (52% of the theoretical capacity), respectively.