
Research progress in defect engineering to enhance zinc storage properties of vanadium-based oxides
Wenjun LI, Xilian XU, Wanrui LI, Jinshuai ZHENG, Shengli LU
Research progress in defect engineering to enhance zinc storage properties of vanadium-based oxides
Aqueous zinc-ion batteries (AZIBs) have emerged as a highly competitive and promising new energy storage technology due to their high safety, high theoretical specific capacity, low cost, and simple fabrication process. In recent years, vanadium-based oxide materials have been widely used as cathode materials for AZIBs due to their high theoretical capacity, diverse valence states, and high electrochemical activity. However, challenges such as low electronic conductivity, structural instability, slow kinetics, and complex energy storage mechanisms hinder their further development and application in AZIBs. Recently, with the continuous optimization of electrode materials and the in-depth exploration of electrode reaction mechanisms, researchers discover that defect engineering strategies can effectively address these issues and enhance the electrochemical performance of vanadium-based oxide cathode materials. This review summarizes the zinc storage mechanisms of vanadium-based oxides, explores the research progress of applying defect engineering strategies to vanadium-based oxide cathode materials in aqueous zinc-ion batteries, discusses and summarizes the reasons for the improvement in zinc storage performance, and provides prospects for future research directions in defect engineering. The aim is to promote the development and practical application of high-performance zinc-ion batteries.
aqueous zinc-ion battery / vanadium-based oxide / energy storage mechanism / defect engineering
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