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Author Baddour-Hadjean, R. ♦ Farcy, J. ♦ Pereira-Ramos, J. P. ♦ Baffier, N.
Sponsorship USDOE
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ENERGY STORAGE ♦ MATERIALS SCIENCE ♦ CHEMISTRY ♦ ALUMINIUM OXIDES ♦ SOL-GEL PROCESS ♦ ELECTROCHEMISTRY ♦ VANADIUM OXIDES ♦ LITHIUM ♦ IMPREGNATION ♦ METAL-NONMETAL BATTERIES ♦ CATHODES ♦ MASS TRANSFER ♦ MICROSTRUCTURE
Abstract The main electrochemical characteristics of a new aluminum vanadium oxide synthesized via a sol-gel process are reported. The kinetics of the electrochemical insertion of lithium into Al{sub 0.11}V{sub 2}O{sub 5.15} has been investigated using ac impedance spectroscopy and the pulse relaxation technique. These two methods, which involve basically different kinds of perturbation and measurement, provide similar data. The variation of the chemical diffusion coefficient {tilde D}{sub Li}, in the range 10{sup {minus}10} to 10{sup {minus}11} cm{sup 2}/s{sup {minus}1}, as a function of the Li content, is compared to that previously obtained for the V{sub 2}O{sub 5} parent oxide and tentatively correlated with previous structural data reported on V{sub 2}O{sub 5} and orthorhombic mixed oxides M{sub y}V{sub 2}O{sub 5} (M = Fe{sup 3+}, Al{sup 3+}).
ISSN 00134651
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-07-01
Publisher Place United States
Journal Journal of the Electrochemical Society
Volume Number 143
Issue Number 7


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