Carbon-based fibrous EDLC capacitors and supercapacitors
Carbon-based fibrous EDLC capacitors and supercapacitors
This paper investigates electrochemical double-layer capacitors (EDLCs) including two alternative types of carbon-based fibrous electrodes, a carbon fibre woven fabric (CWF) and a multiwall carbon nanotube (CNT) electrode, as well as hybrid CWF-CNT electrodes. Two types of separator membranes were also considered. An organic gel electrolyte PEO-LiCIO4-EC-THF was used to maintain a high working voltage. The capacitor cells were tested in cyclic voltammetry, charge-discharge, and impedance tests. The best separator was a glass fibre-fine pore filter. The carbon woven fabric electrode and the corresponding supercapacitor exhibited superior performance per unit area, whereas the multiwall carbon nanotube electrode and corresponding supercapacitor demonstrated excellent specific properties. The hybrid CWF-CNT electrodes did not show a combined improved performance due to the lack of carbon nanotube penetration into the carbon fibre fabric.
Lekakou, C.
07e893c7-560b-4e95-a657-56ee3cf01fb7
Moudam, O.
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Markoulidis, F.
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Andrews, T.
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Watts, J.F.
8cce2b3c-b6e6-4440-9c70-b69d6a3cfecf
Reed, G.T.
ca08dd60-c072-4d7d-b254-75714d570139
13 June 2011
Lekakou, C.
07e893c7-560b-4e95-a657-56ee3cf01fb7
Moudam, O.
e0cb9457-3923-4dc7-bc2e-5ae453a710f4
Markoulidis, F.
9ecf4635-d98e-4643-bdd5-05858a3452b5
Andrews, T.
14c9fd58-bd87-40c8-bce6-cb0ecc599503
Watts, J.F.
8cce2b3c-b6e6-4440-9c70-b69d6a3cfecf
Reed, G.T.
ca08dd60-c072-4d7d-b254-75714d570139
Lekakou, C., Moudam, O., Markoulidis, F., Andrews, T., Watts, J.F. and Reed, G.T.
(2011)
Carbon-based fibrous EDLC capacitors and supercapacitors.
Journal of Nanotechnology, 2011, [409382].
(doi:10.1155/2011/409382).
Abstract
This paper investigates electrochemical double-layer capacitors (EDLCs) including two alternative types of carbon-based fibrous electrodes, a carbon fibre woven fabric (CWF) and a multiwall carbon nanotube (CNT) electrode, as well as hybrid CWF-CNT electrodes. Two types of separator membranes were also considered. An organic gel electrolyte PEO-LiCIO4-EC-THF was used to maintain a high working voltage. The capacitor cells were tested in cyclic voltammetry, charge-discharge, and impedance tests. The best separator was a glass fibre-fine pore filter. The carbon woven fabric electrode and the corresponding supercapacitor exhibited superior performance per unit area, whereas the multiwall carbon nanotube electrode and corresponding supercapacitor demonstrated excellent specific properties. The hybrid CWF-CNT electrodes did not show a combined improved performance due to the lack of carbon nanotube penetration into the carbon fibre fabric.
Text
409382
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More information
Accepted/In Press date: 20 March 2011
Published date: 13 June 2011
Additional Information:
Special issue: Nanocomposites
Identifiers
Local EPrints ID: 481765
URI: http://eprints.soton.ac.uk/id/eprint/481765
ISSN: 1687-9503
PURE UUID: 8c60057e-f805-4768-8a16-25790d25660f
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Date deposited: 07 Sep 2023 16:35
Last modified: 05 Jun 2024 19:02
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Contributors
Author:
C. Lekakou
Author:
O. Moudam
Author:
F. Markoulidis
Author:
T. Andrews
Author:
J.F. Watts
Author:
G.T. Reed
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