Water molecular activity management towards stable Zn anodes

IF 9.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Science China Chemistry Pub Date : 2024-06-04 DOI:10.1007/s11426-024-2098-6

Yun Tan, Jun Pu, Hongpeng Li, Dongliang Chao

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Abstract

Zinc-based aqueous batteries (ZABs) have attracted wide interest and become a hot topic in the field of secondary batteries due to their low cost, high safety, and environmental friendliness. However, challenges pertaining to zinc anodes, such as dendrites growth and side reactions, which are associated with the high activity of freedom water molecules in the aqueous electrolyte, significantly hinder the advancement of ZABs. In recent years, strategies aimed at regulating water molecular activity have been demonstrated to address the above issues effectively. Nevertheless, there is a lack of systematic summary regarding the electrolyte engineering and the functional mechanisms for stabilizing zinc anodes from the point of view of water molecular activity management. Hence, this review comprehensively introduces strategies for regulating water activity through the electrolyte engineering to achieve side reaction-suppressed ZABs, including the latest research on aqueous zinc-metal batteries, the origin of critical zinc-related problems, and the development of technological and electrolyte additives. Lastly, various strategies were summarized from different perspectives to improve the performance of zinc metal anodes. This work is expected to present the latest outline and inspire future innovation in electrolyte technologies.

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实现稳定锌阳极的水分子活性管理

锌基水电池（ZABs）以其低成本、高安全性和环境友好性而受到广泛关注，成为二次电池领域的研究热点。然而，与锌阳极相关的挑战，如枝晶生长和副反应，这与水电解质中自由水分子的高活性有关，严重阻碍了ZABs的发展。近年来，旨在调节水分子活性的策略已被证明可以有效地解决上述问题。然而，从水分子活性管理的角度对电解液工程及其稳定锌阳极的功能机制缺乏系统的总结。因此，本文综合介绍了通过电解质工程调节水活度以实现副反应抑制ZABs的策略，包括水锌金属电池的最新研究进展、锌相关关键问题的来源、技术和电解质添加剂的发展。最后，从不同的角度总结了提高锌金属阳极性能的各种策略。这项工作有望呈现最新的轮廓，并激发未来电解质技术的创新。

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来源期刊

Science China Chemistry CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

14.40

自引率

7.30%

发文量

3787

审稿时长

2.2 months

期刊介绍： Science China Chemistry, co-sponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China and published by Science China Press, publishes high-quality original research in both basic and applied chemistry. Indexed by Science Citation Index, it is a premier academic journal in the field. Categories of articles include: Highlights. Brief summaries and scholarly comments on recent research achievements in any field of chemistry. Perspectives. Concise reports on thelatest chemistry trends of interest to scientists worldwide, including discussions of research breakthroughs and interpretations of important science and funding policies. Reviews. In-depth summaries of representative results and achievements of the past 5–10 years in selected topics based on or closely related to the research expertise of the authors, providing a thorough assessment of the significance, current status, and future research directions of the field.