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Original Conductive Nano-Co3O4 Investigated as Electrode Material for Hybrid Supercapacitors

Godillot, Gérôme and Guerlou-Demourgues, Liliane and Taberna, Pierre-Louis and Simon, Patrice and Delmas, Claude Original Conductive Nano-Co3O4 Investigated as Electrode Material for Hybrid Supercapacitors. (2011) Electrochemical and Solid State Letters, Vol. 14 (n° 10). pp. A139-A142. ISSN 1099-0062

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Official URL: http://dx.doi.org/10.1149/1.3609259

Abstract

Cobalt oxides have been extensively used as conductive additives for Ni-MH batteries. We report in this paper the performances of an original nanometric cobalt oxide, close to Co3O4, as electrode material for hybrid supercapacitors. This spinel type phase contains hydrogen, lithium, cobalt vacancies, and especially Co4þ ions within the structure, leading to a high electronic conductivity. Cyclic voltammetry and impedance spectroscopy measurements show interesting capacitance (320 F/g in 8M-KOH), as well as good electrochemical cycling with a small amount of carbon black (5%).

Item Type:Article
Additional Information:Thanks to Electrochemical Society editor. The orinal version is available at http://www.electrochem.org/ The original PDF of the article can be found at Electrochemical and Solid State Letters website: http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=ESLEF600001400001000A139000001&idtype=cvips&gifs=yes&ref=no
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Other partners > Ecole Nationale Supérieure de Chimie et de Physique de Bordeaux - ENSCPB (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Other partners > Institut Polytechnique de Bordeaux - IPB (FRANCE)
Other partners > Université de Bordeaux 1 (FRANCE)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Laboratory name:
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Deposited By: Denis Faragou

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