Novel layered iron vanadate cathode for high-capacity aqueous rechargeable zinc batteries

Abstract

A layered iron vanadate Fe₅V₁₅O₃₉(OH)₉·9H₂O nanosheet is first introduced to an aqueous zinc battery system as a cathode material, which delivers a high capacity of 385 mA h g⁻¹ at 0.1 A g⁻¹ and remarkable cycling performance at high current density (over 80% capacity retention after 300 cycles at 5 A g⁻¹).