Optimizing milling and sintering parameters for mild synthesis of highly conductive Li5.5PS4.5Cl1.5 solid electrolyte

Under milder conditions, Li 5.5 PS 4.5 Cl 1.5 with ionic conductivity of 7.92 mS cm −1 and excellent electrochemical properties can be obtained after 400 rpm-ball milling followed by sintering at 400 °C.