Research Status and Prospect of Iodine Positive Electrode for Zinc-Iodine Batteries
HOU Jiagang
XUE Zilong
MA Wenqing
JIAN Tianzhen
XU Caixia
Abstract：Zinc-iodine batteries are considered to be one interesting class of prospective electrochemical en-ergy storage device due to their high safety,good reversibility,and low cost.However,the zinc-iodine batteries still face several issues related to the poor conductivity of iodine and its compounds,the high sol-ubility of iodides in aqueous electrolytes,and the sluggish I-/I2 redox reaction kinetics.These drawbacks often result in severe self-discharge,poor rate performance,and limited cycling stability.This paper re-views recent research progress addressing the aforementioned issues related to the iodine cathode in zinc-io-dine batteries.It mainly includes the working mechanism of zinc-iodine batteries,discusses the challenges faced by iodine cathodes,and provides a comprehensive overview of strategies for their improvement.
Keywords：zinc-iodine batterypositive electrodeelectrochemical energy storage
Publication Date：2024-12-28
Online Publishing Date：2026-08-28(First online date of this platform, not the publication date of the document)
Pages：9( 1-9 )