Graphene Oxide Wrapped ZnMnO3 Nanorod as Advanced Cathode for Aqueous Zinc‐Ion Batteries.

Aqueous zinc‐ion batteries (ZIBs) have attracted much attention due to the low cost and high safety. However, sluggish reaction kinetics and poor cycling stability hinder their further application. Herein, a graphene oxide wrapped ZnMnO3 nanorod (ZMO/GO) is successfully prepared and employed as cathode in ZIBs. Battery with ZMO/GO cathode demonstrates favorable special capacity of 174.8 mAh g−1 at a current density of 0.1 A g−1 and sufficient stability at 2 A g−1. The superior electrochemical performance may be attributed to the GO with high electrical conductivity and ZMO with fast H+ diffusion. [ABSTRACT FROM AUTHOR]