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Fongy, C., Jouanneau, S., Guyomard, D. & Lestriez, B. (2011) Carbon nanofibers improve both the electronic and ionic contributions of the electrochemical performance of composite electrodes. J. Power Sources, 196 8494–8499.
Added by: Laurent Cournède (2016-03-10 21:32:19) |
| Type de référence: Article DOI: 10.1016/j.jpowsour.2011.06.022 Numéro d'identification (ISBN etc.): 0378-7753 Clé BibTeX: Fongy2011 Voir tous les détails bibliographiques  |
Catégories: ST2E Mots-clés: additives, batteries, Carbon nanofibre, Cathodes, cells, composite electrode, Conductive additive, fibers, LiFePO(4), optimization Créateurs: Fongy, Guyomard, Jouanneau, Lestriez Collection: J. Power Sources |
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Indice de consultation : 4% Indice de popularité : 1% |
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The impact of carbon nanofibers as conductive additive on the electrochemical performance of a Li FePO(4)-based composite electrode for lithium battery is investigated here. We use a new method that allows discriminating between the electronic and the ionic wirings contributions to the polarization and the specific capacity at different discharge rates [C. Fongy, et al., J. Electrochem. Soc., 157 (2010) A885: C. Fongy, et al., J. Electrochem. Soc., 157 (2010) A1347]. Results show this conductive additive is not only beneficial in terms of electronic wiring but it also enables to reach better high rate performance by improving the ionic wiring as it decreases the tortuosity of the porosity within the composite electrode architecture. (C) 2011 Elsevier B.V. All rights reserved.
Added by: Laurent Cournède |