Fabrication of a high lithium ion conducting lithium borosilicate glass

► High lithium ion conducting borosilicate glasseshaving 50 mol% Li2O were fabricated bythe conventional melt and quenching technique. ► The glass formation domain can be expanded by modifying the ratio of SiO2/B2O3. ► The conductivity strongly depended on the lithium molar concentration, however, not on the ratio of SiO2/B2O3.