Grain Boundary Filling Empowers (002)-Textured Zn Metal Anodes with Superior Stability

IF 27.4 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY Advanced Materials Pub Date : 2024-09-20 DOI:10.1002/adma.202411004

Zibo Chen, Yizhou Wang, Qiang Wu, Cheng Wang, Qian He, Tao Hu, Xuran Han, Jialu Chen, Yu Zhang, Jianyu Chen, Lijun Yang, Xuebin Wang, Yanwen Ma, Jin Zhao

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Abstract

Aqueous Zn battery is promising for grid-level energy storage due to its high safety and low cost, but dendrite growth and side reactions at the Zn metal anode hinder its development. Designing Zn with (002) orientation improves the stability of the Zn anode, yet grain boundaries remain susceptible to corrosion and dendrite growth. Addressing these intergranular issues is crucial for enhancing the electrochemical performance of (002)-textured Zn. Here, a strategy based on grain boundary wetting to fill intergranular regions and mitigate these issues is reported. By systematically investigating boundary fillers and filling conditions, In metal is chosen as the filler, and one-step annealing is used to synergistically convert commercial Zn foils into single (002)-textured Zn while filling In into the boundaries. The inter-crystalline-modified (002)-textured Zn (IM(002) Zn) effectively inhibits corrosion and dendrite growth, resulting in excellent stability in batteries. This work offers new insights into Zn anode protection and the development of high-energy Zn batteries.

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晶界填充使 (002) 纹理锌金属阳极具有卓越的稳定性

锌水电池因其安全性高、成本低而有望成为电网级储能技术，但金属锌阳极的枝晶生长和副反应阻碍了其发展。设计取向为 (002) 的锌可以提高锌阳极的稳定性，但晶界仍然容易受到腐蚀和枝晶生长的影响。解决这些晶间问题对于提高（002）取向锌的电化学性能至关重要。本文报告了一种基于晶界润湿的策略，以填充晶间区域并缓解这些问题。通过系统地研究晶界填充物和填充条件，选择金属 In 作为填充物，并采用一步退火法将商用锌箔协同转换成单一 (002) 纹理的锌，同时将 In 填充到晶界中。晶间修饰的（002）纹理锌（IM(002) Zn）能有效抑制腐蚀和枝晶生长，从而使电池具有出色的稳定性。这项研究为锌阳极保护和高能量锌电池的开发提供了新的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advanced Materials 工程技术-材料科学：综合

CiteScore

43.00

自引率

4.10%

发文量

2182

审稿时长

2 months

期刊介绍： Advanced Materials, one of the world's most prestigious journals and the foundation of the Advanced portfolio, is the home of choice for best-in-class materials science for more than 30 years. Following this fast-growing and interdisciplinary field, we are considering and publishing the most important discoveries on any and all materials from materials scientists, chemists, physicists, engineers as well as health and life scientists and bringing you the latest results and trends in modern materials-related research every week.