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High temperature carbon–carbon supercapacitor using ionic liquid as electrolyte

Balducci, Andrea and Dugas, Romain and Taberna, Pierre-Louis and Simon, Patrice and Plee, Dominique and Mastragostino, Marina and Passerini, Stefano High temperature carbon–carbon supercapacitor using ionic liquid as electrolyte. (2007) Journal of Power Sources, vol. 165 (n° 2). pp. 922-927. ISSN 0378-7753

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Official URL: http://dx.doi.org/10.1016/j.jpowsour.2006.12.048

Abstract

This paper presents results about the electrochemical and cycling characterizations of a supercapacitor cell using a microporous activated carbon as the active material and N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (PYR14TFSI) ionic liquid as the electrolyte. The microporous activated carbon exhibited a specific capacitance of 60 F g−1 measured from the three-electrode cyclic voltammetry experiments at 20mVs−1 scan rate, with a maximum operating potential range of 4.5V at 60 ◦C. A coin cell assembled with this microporous activated carbon and PYR14TFSI as the electrolyte was cycled for 40,000 cycles without any change of cell resistance (9cm2), at a voltage up to 3.5V at 60 ◦C, demonstrating a high cycling stability as well as a high stable specific capacitance in this ionic liquid electrolyte. These high performances make now this type of supercapacitor suitable for high temperature applications (≥60 ◦C).

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Journal of Power Sources website : http://www.sciencedirect.com/science/journal/03787753
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Other partners > Arkema (FRANCE)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Other partners > Italian National Agency for New Technologies, Energy and Environment - ENEA (ITALY)
French research institutions > Centre National de la Recherche Scientifique - CNRS
Other partners > Università di Bologna (ITALY)
Laboratory name:
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Deposited By:Celine Cabaup

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