材料科学
电镀(地质)
电磁屏蔽
枝晶(数学)
涂层
电池(电)
冶金
锡
屏蔽效应
溅射沉积
锌
阳极
腔磁控管
合金
化学工程
复合材料
腐蚀
阴极
纳米技术
薄膜
溅射
化学
电极
物理化学
工程类
功率(物理)
量子力学
数学
地质学
地球物理学
物理
几何学
作者
Jiyuan Zheng,Zihao Huang,Ye Zeng,Wanqiang Liu,Baodian Wei,Zhengbing Qi,Zhoucheng Wang,Chuan Xia,Hanfeng Liang
出处
期刊:Nano Letters
[American Chemical Society]
日期:2022-01-18
卷期号:22 (3): 1017-1023
被引量:112
标识
DOI:10.1021/acs.nanolett.1c03917
摘要
The uncontrolled zinc dendrite growth during plating leads to quick battery failure, which hinders the widespread applications of aqueous zinc-ion batteries. The growth of Zn dendrites is often promoted by the "tip effect". In this work, we propose a generate strategy to eliminate the "tip effect" by utilizing the electrostatic shielding effect, which is achieved by coating Zn anodes with magnetron sputtered Al-based alloy protective layers. The Al can form a surface insulating Al2O3 layer and by manipulating the Al content of Zn-Al alloy films, we are able to control the strength of the electrostatic shield, therefore realizing a long lifespan of Zn anodes up to 3000 h at a practical operating condition of 1.0 mA cm-2 and 1.0 mAh cm-2. In addition, the concept can be extended to other Al-based systems such as Ti-Al alloy and achieve enhanced stability of Zn anodes, demonstrating the generality and efficacy of our strategy.
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