NASICON-type Fe2(MoO4)3 thin film as cathode for rechargeable sodium ion battery

► In this paper, we fabricated NASICON-type Fe2(MoO4)3 thin films by magnetron sputtering. ► We examined their electrochemical behaviors with sodium. ► We found a higher reversible sodium storage capacity of approximately 91 mAh/g. ► Fe2(MoO4)3 thin film can significantly improve its electrochemical performance for sodium ion battery.