期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 10, 期 12, 页码 1886-1888出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2008.10.001
关键词
Ionic liquid; FSI; Bis(fluorosulfonyl)amide; Lithium battery; Sodium battery; Electrodeposition
资金
- Japanese Ministry of Education, Culture, Sports, Science and Technology
- Grants-in-Aid for Scientific Research [20246140] Funding Source: KAKEN
Thermal properties of alkali bis(fluorosulfonyl)amides, MFSI (M = Li, Na, K, Rb, Cs), have been investigated. Binary phase diagrams of LiFSI-KFSI and NaFSI-KFSI systems have been constructed. Eutectic point for LiFSI-KFSI is 338 K at (X-Li,X-K) = (0.45,0.55) and, that for NaFSI-KFSI is 330 K at (X-Na,X-K) = (0.45,0.55). The electrochemical window of the eutectic LiFSI-KFSI is as wide as 6.0 V at 348 K with the cathode limit being lithium metal deposition. The electrochemical window of the eutectic NaFSI-KFSI is 5.0 V at 340 K with sodium metal deposition at the cathode limit. These new inorganic ionic liquids are highly promising for various electrochemical applications. (C) 2008 Elsevier B.V. All rights reserved.
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