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Updated: Jul 1, 2025

Zinc-Sponge Battery Electrodes that Suppress Dendrites
Published on: September 29, 2020
Advancements in aqueous zinc-iodine batteries: a review
Zhongchao Bai1, Gulian Wang2, Hongmin Liu1
1Institute of Energy Materials Science (IEMS), University of Shanghai for Science and Technology 516 Jungong Road Shanghai 200093 China shi@uow.edu.au.
Abstract:
Aqueous zinc-iodine batteries stand out as highly promising energy storage systems owing to the abundance of resources and non-combustible nature of water coupled with their high theoretical capacity. Nevertheless, the development of aqueous zinc-iodine batteries has been impeded by persistent challenges associated with iodine cathodes and Zn anodes. Key obstacles include the shuttle effect of polyiodine and the sluggish kinetics of cathodes, dendrite formation, the hydrogen evolution reaction (HER), and the corrosion and passivation of anodes. Numerous strategies aimed at addressing these issues have been developed, including compositing with carbon materials, using additives, and surface modification. This review provides a recent update on various strategies and perspectives for the development of aqueous zinc-iodine batteries, with a particular emphasis on the regulation of I2 cathodes and Zn anodes, electrolyte formulation, and separator modification. Expanding upon current achievements, future initiatives for the development of aqueous zinc-iodine batteries are proposed, with the aim of advancing their commercial viability.
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