Energy Storage Science and Technology ›› 2022, Vol. 11 ›› Issue (7): 2075-2082.doi: 10.19799/j.cnki.2095-4239.2022.0040

• Energy Storage Materials and Devices • Previous Articles     Next Articles

Recent advances in the electrolytes of rechargeable zinc-ion batteries

Yingwei PEI(), Hong ZHANG(), Xinghui WANG()   

  1. College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, Fujian, China
  • Received:2022-01-20 Revised:2022-01-28 Online:2022-07-05 Published:2022-06-29
  • Contact: Hong ZHANG, Xinghui WANG E-mail:N191120044@fzu.edu.cn;zhanghong@fzu.edu.cn;seaphy23@fzu.edu.cn

Abstract:

Owing to their low cost, safety, high availability, ecological friendliness, and easy preparation, zinc-ion batteries have been extensively investigated. Linking with the other parts of zinc-ion batteries, the electrolyte is strongly related to making the most beneficial electrochemical performance. To further enhance the possibility of application, it has key importance to enhance the release of electrochemical performance of the batteries. Although there has been a lot of research performed and several batteries' remarkable findings have been attained, some challenges of electrolytes in zinc ion batteries still require to be paid enough attention. In this review, the general principle of zinc-ion batteries is introduced first and then the recent advances in a wide range of electrolytes for zinc-ion batteries involving aqueous, organic, gel, and all-solid-state electrolytes are explained. The solvation problem, corresponding modification strategies, and mechanism of improving electrode stability by additives are introduced in the aqueous electrolytes part. The enhancement of electrochemical performance of the batteries is explained in the organic electrolytes part. The formation principle of related electrolytes and their application in flexible energy storage is explained in the gel part. In the all-solid-state part, the benefit of liquid-free and intrinsic conductivity are briefly illustrated. Furthermore, the electrolytes' research progress in zinc-ion batteries is summarized and the prospects research directions of those are proposed.

Key words: zinc-ion battery, electrolyte, aqueous, organic, gel, all-solid-state

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