枝晶(数学)
材料科学
阳极
接口(物质)
沉积(地质)
电偶阳极
金属
冶金
阴极保护
复合材料
化学
电极
地质学
润湿
几何学
古生物学
数学
物理化学
坐滴法
沉积物
作者
Xiaodong Zhu,Xuanyang Li,Melchizedek Lord Kwesi Essandoh,Jian Tan,Ziyi Cao,Xiang Zhang,Pei Dong,Pulickel M. Ajayan,Mingxin Ye,Jianfeng Shen
出处
期刊:Social Science Research Network
[Social Science Electronic Publishing]
日期:2022-01-01
被引量:1
摘要
Dendrite growth and side reactions on zinc anodes have been the main problems hindering the commercialization of aqueous zinc-ion batteries (ZIBs). The construction of an interface protective layer (IPL) has proved to be one of the effective ways to improve the stability of zinc anodes, but it remains a challenge to achieve multi-functionality. Herein, tetramethylammonium-intercalated Ti 3 C 2 T x MXene (MX-TMA) coating with a low zinc nucleation barrier was in-situ constructed on the surface of zinc foil by a facile self-assembly method. It provides the IPL with abundant zincophilic sites and better hydrophilicity, which promotes the transport of Zn 2+ for uniform electrodeposition and inhibits interface side reactions. Moreover, the directional deposition of zinc on the beneficial (002) plane guided by MX-TMA is further revealed. As a result, the lifespan of the zinc electrode under 2 mA cm –2 is prolonged by 3600 h. Even under deep discharge (DOD Zn ≈85%), the MX-TMA@Zn anode can still achieve stable cycles for more than 450 h. Furthermore, the full battery assembled with the Mn-based cathode also demonstrated superior performance. This work provides an in-depth mechanism analysis and inspiration for IPL design, thus advancing the development and practical application of ZIBs.
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