2001 Volume 109 Issue 1274 Pages 809-814
Amorphous based solid electrolytes are promising for application to solid-state batteries and other electrochemical devices. We have prepared a number of the electrolytes by rapid quenching of melts using a twin-roller and by mechanical milling of starting materials using a planetary ball mill. Three topics of silver or lithium ion conducting amorphous electrolytes prepared by these techniques are reported. The first one is the formation and characterization of α-AgI microcrystal-dispersed composite electrolytes, in which high temperature superionic phase of α-AgI is stabilized at room temperature in a superionic glass matrix. The second one is the structural investigation of lithium ion conducting oxysulfide glasses prepared by rapid quenching of melts. The last one is the mechanochemical preparation of high lithium ion conducting oxysulfide glasses and their application to solid-state secondary batteries.
