New oxysulfide glasses were prepared and were investigated by using X-ray diffraction, differential thermal analysis and electrical methods. The glasses were more thermally stable and non-hygroscopic than were sulfide glasses, and had a higher Li+ ion conductivity than that of oxide glasses. It was found that both the glass transition temperature and the activation energy increased with increasing LiBO2 content, and reached maxima at about 70mol%. The glass, 0.41(Li2S,SiS2,LiBO2)-0.59LiCl, exhibited the highest ionic conductivity (6 x 10-5S/cm) at room temperature.

C.Fang, H.Gao, Y.Ho, Z.Cai, Y.Zhang: Solid State Ionics, 1991, 48[3-4], 289-93