Recent advancement in doped vanadium pentoxide for energy storage devices

The search for high-performing supercapacitors is a major area of energy storage and conversion research due to the increasing demand for portable electronics, electric vehicles, and green energy solutions. To improve upon traditional batteries and capacitors, researchers have focused on designing different electrode materials made of vanadium pentoxide (V2O5), which has a high capacitive potential and is non-toxic. However, poor conductivity, low porosity, and charge/discharge dissolution limit the performance of bulk V2O5. To overcome these limitations, researchers have added dopants to V2O5, which increase electron mobility, surface area, and structural stability. This review focuses on the effects of different synthesis methods and physical treatment strategies on the structure and electrochemical performance of doped V2O5 electrodes.