Investigation of V2O5 as a low-cost rechargeable aqueous zinc ion battery cathode

Abstract

Rechargeable aqueous zinc ion batteries (ZIBs) are highly desirable for large-scale energy storage due to their advantages of safety and low-cost. Development of advanced cathodes for use in aqueous ZIBs is urgently needed. Herein, we report a low-cost rechargeable aqueous Zn–V₂O₅ cell with 3 M ZnSO₄ electrolyte that demonstrates high zinc storage capability. We also investigated the effect of different types/concentrations of the aqueous electrolytes on the performance of the Zn–V₂O₅ cells.