Showing papers by "Alain Levasseur published in 1980"
TL;DR: In this article, new vitreous fast ionic conductors in the system B2O3, Li2O, and LiCl are described, and a Raman and infrared study undertaken to elucidate the structure of the glasses and the conduction mechanism indicates that the structure consists of a "covalent" boron-oxygen network, in which LiCl is diluted without producing detectable interactions with the latter.
117 citations
TL;DR: In this article, the B2O3-xLi2O-LinX (n = 1, X = F, Cl, Br, I;n = 2, I = SO4) system was shown to have a conductivity of 10-2 ω-1 cm-1 at 300°C.
54 citations
01 Jan 1980
TL;DR: In this paper, the B2O3-xLi2O-LinX formulation was used to obtain a 10-2Ω-lcm-l at 300°C.
Abstract: New vitreous electrolytes with fast lithium ion carriers have been obtained in the systems of formulation B2O3—Li2O-LinX (n = 1; X = F, Cl, Br, I; n = 2, X = SO4). Some of these glasses have a conductivity of the order of 10-2Ω-lcm-l at 300°C. The conductivity is all the more important as the content of oxide and lithium salt is higher. Studies by techniques sensitive to local ordering have shown that the materials seem to be constituted by a B2O3—xLi2O “framework” in which the coordination of boron atoms shifts from III to IV with rising X. The lithium salt is diluted in the vitreous matrix without detectable interaction with the surrounding although lithium ions participate in the conduction.