期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 13, 期 10, 页码 1112-1115出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2011.07.010
关键词
Protic ionic liquids; Phosphonium; Tetrafluoroborate; Supercapacitors
资金
- Conseil Regional de la region Centre
This study describes the use of a solution of a phosphonium protic ionic liquid [Bu3HP][BF4] (3.4 mol L-1) in acetonitrile as an electrolyte for carbon-based supercapacitors, with an operating voltage of 1.5 V and capacities comparable to conventional aqueous electrolytes. The combination of good cycling abilities and an operating temperature ranging from -40 degrees C to 80 degrees C rendered possible the realization of supercapacitors having an extended specific energy in a large temperature range. (C) 2011 Elsevier B.V. All rights reserved.
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