Electrical conductivity and dielectric relaxation studies were performed on a large number of Li-ion conducting glasses, in this ternary system, using a wide range of temperatures (150 to 450K) and frequencies (10Hz to 10MHz). The direct-current conductivities exhibited 2 different activation regions, and this was taken to imply the presence of a cluster-texture in the glasses. The clusters were suggested to consist of Li2SO4 and lithium phosphate and to be held together by a connective tissue of average composition. This suggestion seemed to be supported by the alternating-current conductivity behaviour of the glasses, which were analyzed by using both power-law and stretched-exponential relaxation functions.

Lithium Ion Transport in Li2SO4-Li2O-P2O5 Glasses. M.Ganguli, M.H.Bhat, K.J.Rao: Solid State Ionics, 1999, 122[1-4], 23-33