Rechargeable Zn-based batteries are gaining increased interest for use in energy storage systems due to their inherent safety, affordability, and eco-friendliness. Zn powder is highly regarded as a promising material for Zn-based batteries due to its cost-effectiveness, superior electrochemical performance and ease of processing, as well as customizable utilization rate, which holds great potential in increasing overall energy density of Zn-based batteries. However, the commercialization of Zn powder anodes still remains great challenges such as more severe hydrogen evolution, volume effect caused electrical contact failure, poor macroscopic mechanical strength in comparison with zinc foils and additional short circuits due to dendrite growth. This topical review focuses on the recent research advance of Zn power-based anodes. A comprehensive organization of the previously reported benefits and challenges in Zn powder anode is firstly provided. Then, the advancements in structural design strategies of Zn powder anodes, and the corresponding electrochemical performance are discussed in detail. Finally, the future challenges in developing practical Zn powder anode based on crystallography, mechanics, electrode process engineering and other related fields are examined. This review offers a fresh perspective on designing Zn powder anodes for use in commercial Zn-based energy storage systems in the future.

中文翻译：

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锌粉负极面向可充电锌基电池的结构设计策略


由于其固有的安全性、经济性和环保性，可充电锌基电池在储能系统中的使用越来越受到关注。Zn 粉末因其成本效益、优异的电化学性能和易于加工以及可定制的利用率而被广泛认为是一种很有前途的 Zn 基电池材料，这在提高 Zn 基电池的整体能量密度方面具有巨大潜力。然而，锌粉负极的商业化仍然存在巨大的挑战，例如更严重的析氢、体积效应导致电接触故障、与锌箔相比宏观机械强度差以及由于枝晶生长而导致的额外短路。本专题综述重点介绍了 Zn 功率基负极的最新研究进展。首先全面介绍了以前报道的 Zn 粉末负极的好处和挑战。然后，详细讨论了 Zn 粉末负极结构设计策略的进展，以及相应的电化学性能。最后，从晶体学、力学、电极工艺工程等相关领域探讨了未来开发实用锌粉体负极面临的挑战。这篇综述为设计用于未来商业 Zn 基储能系统的 Zn 粉末负极提供了新的视角。