V 2 O 5 -based nanostructured powders as a cathode material for post-lithium aqueous batteries

Abstract

Rechargeable Li-ion batteries with organic electrolytes have a wide range of applications owing to a high energy density and power density, voltage stability and wide operating temperature range. A high price of Li-ion batteries due to scarcity of lithium has led to the development of post-lithium batteries such as Na‐, Mg‐, Zn‐, and Al‐ion batteries based on abundant and low-cost resources. Moreover, organic electrolytes pose a potential risks such as flammability, also may contain hazardous chemicals and require specialized assembly techniques. The advantages of aqueous electrolytes compared to organic ones are environmental friendliness, safety, costeffectiveness, and quicker and easier manufacturing processes. In post-lithium aqueous batteries, vanadium-oxide can play a crucial role as a cathode material due to its favorable electrochemical characteristics and availability. During the years, using different synthesis procedures and characterization techniques, we developed variety of V2O5-based materials suitable for utilization in Li-, Na-, and Mg-aqueous batteries. Here, a comprehensive overview about V2O5-based nanostructured powders developed by our group and used as a cathode material for post-lithium aqueous batteries will be provided.