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Dubarry, M., Gaubicher, J., Moreau, P. & Guyomard, D. (2006) Formation of Li1+nV3O8/beta-Li1/3V2O5/C nanocomposites by carboreduction and resulting improvements of the capacity retention. J. Phys. Chem. Solids, 67 1312–1314.
Added by: Florent Boucher (2016-05-12 13:21:37) |
| Type de référence: Article DOI: 10.1016/j.jpcs.2006.01.090 Numéro d'identification (ISBN etc.): 0022-3697 Clé BibTeX: Dubarry2006 Voir tous les détails bibliographiques  |
Catégories: ST2E Créateurs: Dubarry, Gaubicher, Guyomard, Moreau Collection: J. Phys. Chem. Solids |
Consultations : 1/426
Indice de consultation : 3% Indice de popularité : 0.75% |
| Résumé |
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The formation of the xerogel precursor of Li1+alpha V3O8 within a suspension of carbon black allows the synthesis of Li1+alpha+xV3O8/beta-Li1/3V2O5/C nanocomposites upon heating under argon at 350 degrees C for a few minutes. The intimate contact of the active material with carbon particles ensures a limitation of the particle growth, a reduction-insertion of the pristine Li1+alpha V3O8 compound along with the formation of beta-Li1/3V2O5 and an efficient electronic transport to the active materials. The electrochemical performance of these nanocomposites is significantly better than those of standard Li1+alpha V3O8. (c) 2006 Elsevier Ltd. All rights reserved.
Added by: Florent Boucher |