Preparation of magnesium ion conducting MgS–P2S5–MgI2 glasses by a mechanochemical technique

Using a mechanochemical technique in the composition range 0 ≤ x (mol.%) ≤ 30 and subsequent heat treatment, (100 − x)(0.6MgS·0.4P2S5) · xMgI2 glasses and glass-ceramics were prepared from 60MgS · 40P2S5 (mol.%) glass and MgI2 crystal. The effects of the addition of MgI2 on the structures and properties of the glass and glass-ceramic electrolytes were examined. The Raman spectra of all the glass-ceramics showed that the glass-ceramics included P2S64 − ions. The glass-ceramic having composition of x = 20 showed electrical conductivity of 2.1 × 10− 7 S cm− 1 at 200 °C.