کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1291611 973366 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High temperature carbon–carbon supercapacitor using ionic liquid as electrolyte
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
High temperature carbon–carbon supercapacitor using ionic liquid as electrolyte
چکیده انگلیسی

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 20 mV s−1 scan rate, with a maximum operating potential range of 4.5 V 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 (9 Ω cm2), at a voltage up to 3.5 V 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).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 165, Issue 2, 20 March 2007, Pages 922–927
نویسندگان
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