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Electrolytic V2O5: Synthesis, Characterization and Lithium Insertion Behavior

  • E. Potiron (a1), A. Le Galla Salle (a1), A. Verbaere (a1), Y Piffard (a1) and D. Guyomard (a1)...

Abstract

Electrolytic V2O5 materials were prepared by electrochemical oxidation of vanadyl ions in aqueous solution. The electrodeposition reaction includes two steps: an oxidation into soluble species followed by a precipitation. With the use of various electrodeposition conditions and subsequent heat treatment it is possible to obtain e-V2O5 compounds with different VIV and water contents.

e-V2O5 compounds are mixed valence, hydrated vanadic acids and their formula can be written as H0.4V2O5.2−δ.nH2 with 0.04<8<0.22 and 0<n<1.8. These poorly crystallized layered compounds undergo a phase transformation into α-V2O5 starting at 240°C.

The electrochemical intercalation of lithium into these compounds shows two main single phase phenomena at ≈3.2V/Li and ≈2.6V/Li. Their capacity retention is better than that of other V2O5 reference compounds, but the reversible capacity down to 2V is only ≈100Ah/kg at a rate faster than C/5, due to kinetic limitations.

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1. Desilvestro, J. and Haas, O., J. Electrochem. Soc. 137, 5C (1990).
2. Whittingham, M. S., J. Electrochem. Soc. 123, 315(1976).
3. Murphy, D. W, Christian, P. A., DiSalvo, F. J. and Waszczac, J. V, Inorg. Chem. 18, 2800(1979).
4. Broussely, M., Labat, J., Bodet, J. M. and Cocciantelli, J.M., J. Power Sources 13, 429(1991).
5. Livage, J., Chem. Mater. 3 578(1991).
6. Livage, J., Baffler, N., Pereira-Ramos, J-P. and Davidson, P., Mat. Res. Soc. Proc. 369 179(1995).
7. Inagaki, M., Watanabe, T. A. and Shimizu, A., Solid State Ionics 86–88, 853 (1996).
8. Le, D. B., Passerini, S., Guo, J., Ressler, J., Owens, B. B. and W Smyrl, H., J. Electrochem. Soc. 143, 2099(1996).
9. Parent, M., Passerini, S., Owens, B. B. and W Smyrl, H., 190th Electrochemical Society Meeting, San Antonio, Tx, USA, Abstracts 636–637, 840 (1996).
10. Sato, Y, Nomura, T., Tanaka, H. and Kobayakawa, K., J. Electrochem. Soc. 138, L37 (1991).
11. Sato, Y, Matsueda, N., Tokugawa, H. and Kobayakawa, K., Chem. Lett. 901 (1993).
12. Ugaji, M., Ibino, M. and Kudo, T., J. Electrochem. Soc. 142, 3664(1995).
13. Deltombe, E., de Zoubov, N. and Pourbaix, M., “Atlas d'équilibres électrochimiques”, Gauthiers-Villars (1963) ed., 234.
14. Katz, B., W Liu, Salloux, K., Chaput, F., Dunn, B. and Farrington, G. C., Mat. Res. Soc. Symp. Proc. 369 211(1995).
15. Andersson, S., Acta Chem. Scand. 19 1371(1965).

Electrolytic V2O5: Synthesis, Characterization and Lithium Insertion Behavior

  • E. Potiron (a1), A. Le Galla Salle (a1), A. Verbaere (a1), Y Piffard (a1) and D. Guyomard (a1)...

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