Perovskite oxide composites for bifunctional oxygen electrocatalytic activity and zinc-air battery application- a mini-review

•Energy storage and conversion devices to achieve carbon neutrality.•A rechargeable zinc-air battery requires a bifunctional OER/ORR electrocatalyst.•Perovskite hybrid structure improves electrocatalytic activity.•Hybrid catalysts with multiple active sites enhance Zn-air battery performance.