3 years ago

Chevrel Phase Mo6T8 (T = S, Se) as Electrodes for Advanced Energy Storage

Chevrel Phase Mo6T8 (T = S, Se) as Electrodes for Advanced Energy Storage
Shixue Dou, Zengxi Wei, Jianmin Ma, Yutao Li, Jiantie Xu, Huakun Liu, Lin Mei
With the large-scale applications of electric vehicles in recent years, future batteries are required to be higher in power and possess higher energy densities, be more environmental friendly, and have longer cycling life, lower cost, and greater safety than current batteries. Therefore, to develop alternative electrode materials for advanced batteries is an important research direction. Recently, the Chevrel phase Mo6T8 (T = S, Se) has attracted increasing attention as electrode candidate for advanced batteries, including monovalent (e.g., lithium and sodium) and multivalent (e.g., magnesium, zinc and aluminum) ion batteries. Benefiting from its unique open crystal structure, the Chevrel phase Mo6T8 cannot only ensure rapid ion transport, but also retain the structure stability during electrochemical reactions. Although the history of the research on Mo6T8 as electrodes for advanced batteries is short, there has been significant progress on the design and fabrication of Mo6T8 for various advanced batteries as above mentioned. An overview of the recent progress on Mo6T8 electrodes applied in advanced batteries is provided, including synthesis methods and diverse structures for Mo6T8, and electrochemical mechanism and performance of Mo6T8. Additionally, a briefly conclusion on the significant progress, obvious drawbacks, emerging challenges and some perspectives on the research of Mo6T8 for advanced batteries in the near future is provided. An overview of the recent progress of Chevrel phase Mo6T8 (T = S, Se) for their applications in monovalent (lithium and sodium) and multivalent (magnesium, zinc and aluminum) ion batteries is provided, including synthesis methods, intercalation mechanism and various structure-function of Mo6T8, as well as their applications in various advanced batteries.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/smll.201701441

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