New lithium ion composite electrolyte, LiI–Li2S–La2O2Sm (m = 1, 2) was

synthesized from the binary Li2S–LaOI system through solid state reaction. The

lithium ion conductive property was investigated by AC impedance spectroscopy.

And the highest conductivity of the obtained electrolyte at room temperature was

found to be 3.0 x 10−6S/cm. The notable ionic conduction was attributed to in situ

formed amorphous LiI.

Lithium Ionic Conductivity in LiI–Li2S–La2O2Sm (M=1, 2) Composite Electrolyte

by Solid State Reaction. Z.Cao, Z.Liu, J.Sun, F.Huang, J.Yang, Y.Wang: Solid

State Ionics, 2008, 179[27-32], 1776-8