水系锌离子电池锌负极的研究进展

Research Progress of Zinc Anode for Aqueous Zinc Ion Battery

水系锌离子电池由于其高安全性、环境友好、低成本和高能量密度而成为大规模储能应用中最有前途的系统之一。与水系锌离子电池正极材料的大量研究相比,改善锌负极电化学性能的研究仍处于起步阶段。由于枝晶生长、自腐蚀和不可逆副产物的形成,锌负极面临循环性差和库仑效率低等挑战。为了弥补水系锌离子电池中锌负极的固有缺陷,近年来已经开发了一些有效策略,如负极和电解液之间的界面修饰、锌负极的结构设计以及电解液设计。介绍了锌负极的最新研究进展,对水系锌离子电池未来的研究和发展方向进行了展望。

Aqueous zinc ion batteries have become one of the most promising systems for large-scale energy storage applications due to their high safety,environmental friendliness,low cost and high energy density.Compared with the extensive research on the cathode materials for aqueous zinc ion batteries,the research on improving the electrochemical performance of zinc anodes is still in a preliminary stage.Due to dendrite growth,self-corrosion and the formation of irreversible by-products,the zinc anode faces the challenges of poor cycle stability and low coulombic efficiency.In order to make up for the inherent defects of zinc anode in aqueous zinc ion batteries,some effective strategies have been developed in recent years,such as interface modification between anode and electrolyte,structural design of zinc anode and electrolyte design.The latest research progress of zinc anode is introduced,and the future research and development direction of aqueous zinc ion batteries are prospected.