Péan, Clarisse and Daffos, Barbara and Merlet, Céline and Rotenberg, Benjamin and Taberna, Pierre-Louis and Simon, Patrice and Salanne, Mathieu
Single Electrode Capacitances of Porous Carbons in Neat Ionic Liquid Electrolyte at 100 C: A Combined Experimental and Modeling Approach.
(2015)
Journal of The Electrochemical Society (JES), 162 (5). A5091-A5095. ISSN 0013-4651
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 1MB |
Official URL: http://dx.doi.org/10.1149/2.0151505jes
Abstract
Supercapacitors are promising devices for energy storage. Being able to measure and predict their performances is a key step in order to optimize them. In the present study, we propose an original methodology to calculate the capacitance of a single nanoporous carbon electrode in contact with an ionic liquid, using molecular dynamics simulations. The results are compared to experimental electrochemical measurements conducted on the same systems at high temperature (close to 100◦C). The two approaches are in qualitative agreement and show that, in the case of a butyl-methylimidazolium hexafluorophosphate electrolyte combined with a carbide-derived carbon with an average pore size of 0.9 nm, the positive electrode capacitance is fairly larger than the negative one.
Item Type: | Article |
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Additional Information: | Thanks to Electrochemical Society editor. The definitive version is available at http://jes.ecsdl.org/ |
HAL Id: | hal-01446690 |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Other partners > Université Pierre et Marie Curie, Paris 6 - UPMC (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) |
Laboratory name: | |
Funders: | JADE (CINES, French National HPC) - European Research Council |
Statistics: | download |
Deposited On: | 26 Jan 2017 10:26 |
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