Structure et conductivite electrique de verres appartenant au systeme Li2Si2O5 Li2SO4 |
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| Authors: | Ali Koné B Barrau JL Souquet M Ribes |
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| Affiliation: | 1. Laboratoire d''Energétique Electrochimique (L.A. 265) E.N.S.E.E.G. Domaine Universitaire B.P. 44 - 38401 Saint Martin d''Hères - France;2. Laboratoire de Chimie Minérale (ERA 314) U.S.T.L. Place Eugène Bataillon 34060 Montpellier Cedex - France |
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| Abstract: | The conductivity of vitreous electrolytes belonging to the Li2Si2O5 Li2SO4 system has been measured over the temperature range 25–300 °C and for Li2SO4 concentrations varying from 0–28 mole percent. It has been found that the conductivity increases with the Li2SO4 fraction, attaining 10?5 Ω?1 cm?1 at 130°C for the glass containing the highest proportion of sulphate. Raman spectroscopic studies indicate that the tetrahedral SO2?4 ions are in the glassy network, inserted or not into the silicate chains. |
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