A solid lithium superionic conductor Li11AlP2S12 with a thio-LISICON analogous structure

A solid lithium superionic conductor Li11AlP2S12 with a thio-LISICON analogous structure has been synthesized for the first time by sintering at 500 degrees C (LAlPS500). Such a pure lithium ionic conductor shows a conductivity of 8.02 x 10(-4) S cm(-1) at 25 degrees C, a low E-a of 25.4 kJmol(-1), and a wide electrochemical voltage window of higher than 5.0 V (vs. Li+/Li). This facilitation of Li ionic conduction suggests the potential application in solid lithium ion batteries.