电化学
阴极
材料科学
水溶液
电池(电)
拓扑绝缘体
离子
拓扑(电路)
电极
绝缘体(电)
纳米技术
化学工程
光电子学
电气工程
热力学
凝聚态物理
物理化学
化学
物理
有机化学
工程类
功率(物理)
作者
Wen Li,Qian Zhang,Junjie Shi,Fei Wang,Siliang Wang,Zhiwei Chen,Yue Yang,Yihua Gao
出处
期刊:ACS Nano
[American Chemical Society]
日期:2024-02-09
标识
DOI:10.1021/acsnano.4c01137
摘要
Recently, the topological insulator MnBi2Te4 has aroused great attention owing to its exotic quantum phenomena and intriguing device applications, but the superior performances of MnBi2Te4 have not been researched in the field of electrochemistry. By theoretical calculations, it is found that MnBi2Te4 exhibits excellent Zn2+ storage and transport properties. Therefore, it is speculated that MnBi2Te4 has excellent electrochemical performance in zinc-ion batteries (ZIBs). In this research, MnBi2Te4 as a pioneer has been explored in ZIBs, showing surprising electrochemical properties. The MnBi2Te4 electrode displays a high average discharge specific capacity (264.8 mA h g–1 at 0.40 A g–1), a competitive cycle life (88.6% of initial capacity after 400 cycles at 4.00 A g–1), and an excellent rate performance (average capacity retention rate of 95.1% from 0.40 to 8.00 A g–1) owing to the fast ion transport of the conductive topological surface state and dissipationless channel of the edge state. Surprisingly, the quasi-solid-state (QSS) MnBi2Te4/Zn battery delivers excellent Zn2+ storage capability and possesses a capacity retention of 79.9% after 1000 cycles at 4.00 A g–1. In addition, the QSS MnBi2Te4/Zn battery can exhibit excellent performance and the GCD curves maintain stability without distortion deformation even at temperatures of 0 and 75 °C.
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