Review of regulating Zn 2+ solvation structures in aqueous zinc-ion batteries

作者：W. Zhang, Yufang Chen, Hongjing Gao, Wei Xie, Peng Gao, Chunman Zheng, Peitao Xiao · 发表于：Materials Futures · 年份：2023 · DOI：10.1088/2752-5724/ace3de · 被引用次数：37 · 研究领域：Advanced battery technologies research、Electrocatalysts for Energy Conversion、Advanced Battery Materials and Technologies

Abstract Aqueous zinc-ion batteries, due to their high power density, intrinsic safety, low cost, and environmental benign, have attracted tremendous attentions recently. However, their application is severely plagued by the inferior energy density and short cycling life, which was mainly ascribed to zinc dendrites, and interfacial side reactions, narrow potential window induced by water decomposition, all of which are highly related with the Zn 2+ solvation structures in the aqueous electrolytes. Therefore, in this review, we comprehensively summarized the recent development of strategies of regulating Zn 2+ solvation structures, specially, the effect of zinc salts, nonaqueous co-solvents, and functional additives on the Zn 2+ solvation structures and the corresponding electrochemical performance of aqueous zinc-ion batteries. Moreover, future perspectives focused on the challenges and possible solutions for design and commercialization of aqueous electrolytes with unique solvation structures are provided.