Li2−2xMg2xTiO3+x (0 ≤ 2x ≤ 0.1) powder was synthesized by solid-state reaction.

Phase analysis, microstructures and density of the ceramics were determined by

XRD, SEM and Archimedes' method. Impedance spectroscopy was measured to

evaluate the electrical conduction properties of the ceramics. The experimental

results showed that Mg entered into the lattice of Li2TiO3. Mg doping was

beneficial to the improvement of the sintered density and grain growth of the

Li2TiO3 pellets and resulted in the formation of vacancies, which were favorable to

the improvement of ionic conductivity of the system. The lithium ion conductivity

for Li1.9 Mg0.1TiO3.05 reached 1.07 x 10−3S/cm at 600C.

Synthesis and Ionic Conductivity of Mg-Doped Li2TiO3. X.Wu, Z.Wen, X.Xu,

J.Han: Solid State Ionics, 2008, 179[27-32], 1779-82