Robuta

https://www.osti.gov/biblio/864896 Glass capable of ionic conduction and method of preparation (Patent) | OSTI.GOV Sulfide glasses capable of conducting alkali metal ions are prepared from a nonmetal glass former such as GeS.sub.2, B.sub.2 S.sub.3 and SiS.sub.2 in mixture... capable ofionic conductionglass