Defect engineering of vanadium-based electrode materials for zinc ion battery

With the quick development of sustainable energy sources, aqueous zinc-ion batteries (AZIBs) have be-come a highly potential energy storage technology. It is a crucial step to construct desired electrode ma-terials for improving the total performance of AZIBs. In recent years, considerable efforts have focused on the modification of vanadium-based cathode materials. In this review, we summarized defect engineer-ing strategies of vanadium-based cathodes, including oxygen defects, cation vacancies and heterogeneous doping. Then, we discussed the effect of various defects on the electrochemical performance of electrode materials. Finally, we proposed the future challenges and development directions of V-based cathode ma-terials.(c) 2023 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences.

Automated summary

With the rapid development of sustainable energy sources, aqueous zinc-ion batteries (AZIBs) have emerged as a highly promising energy storage technology. The construction of suitable electrode materials is crucial for improving the overall performance of AZIBs. Recent research has focused on the modification of vanadium-based cathodes, exploring defect engineering strategies such as oxygen defects, cation vacancies, and heterogeneous doping. The effects of these defects on the electrochemical performance of electrode materials are discussed, along with future challenges and development directions for V-based cathode materials.