Journal of Power Sources, Vol.195, No.13, 4124-4128, 2010
Hot-pressed Li0.33La0.57TiO3
The electrical and mechanical properties of hot-pressed versus sintered Li0.33La0.57TiO3 at temperature of 1050 degrees C were investigated. It was observed that hot-pressed Li0.33La0.57TiO3 exhibited a higher total Li-ion conductivity (similar to 20x) and hardness (similar to 11x) compared to sintered Li0.33La0.57TiO3 as a result of its higher density. Hot-pressed Li0.33La0.57TiO3 had a similar relative density and total Li-ion conductivity when compared to Li0.33La0.57TiO3 sintered at 1250 degrees C, where significant Li2O loss occurs. These results suggest that hot-pressing can be used as a consolidation method to reduce Li2O loss to obtain dense Li0.33La0.57TiO3. Published by Elsevier B.V.