As a continuation of our previous study, further experiments were performed on Li3PO4-Li2S-SiS2 lithium ion conductive glass. In the present study, we employed a twin roller for quenching process instead of liquid nitrogen. We found that the glass forming region expands by twin roller technique and conductivity up to 1.5 x 10(-3) S/cm was achieved. Structural analysis on the glass revealed that Li3PO4 doping changes the glass structure of Li2S-SiS2, thereby enhancing the electrical conductivity.