The double perovskite oxide Sr2CrMoO6−δ as an efficient electrocatalyst for rechargeable lithium air batteries

Abstract

A double perovskite oxide Sr₂CrMoO_6−δ (SCM), synthesized using the sol–gel and annealing method with the assistance of citric acid and ethylene diamine tetraacetic acid, was investigated for the first time as an efficient catalyst for rechargeable lithium air batteries. The SCM cathode enables higher specific capacity, lower overpotential and a much better cyclability compared to the pure Super P electrode owing to its excellent electrocatalytic activity towards the formation/decomposition of Li₂O₂.