▎ 摘　　要

NOVELTY - An air electrode catalyst comprises micro and nano structured rod-like composite material containing cobalt(II,III) oxide and reduced graphene oxide, in which reduced graphene oxide sheet is uniformly dispersed in cobalt(II,III) oxide. USE - Air electrode catalyst is used for rechargeable zinc-air battery. ADVANTAGE - The air electrode catalyst has excellent stability and activity, and can be prepared by simple process, and provides efficient and stable rechargeable zinc-air battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of air electrode catalyst.