A correlation between formation enthalpy and ionic conductivity in perovskite-structured Li3xLa0.67−xTiO3 solid lithium ion conductors

• Published in: Journal of materials chemistry. A, Materials for energy and sustainability Vol. 5; no. 25; pp. 12951 - 12957
• Main Authors: Guo, Xin, Maram, Pardha Saradhi, Navrotsky, Alexandra
• Format: Journal Article
• Language: English
• Published: 27.06.2017
• Subjects: Activation energy; calorimetry; Concentration (composition); Correlation analysis; Enthalpy; Formations; Fourier transform infrared spectroscopy; heat production; lanthanum; Lithium; melting; metal ions; Oxides; oxygen; temperature; Trends; X-ray diffraction

Perovskite-structured lithium lanthanum titanate (LLTO) Li 3 x La 0.67− x TiO 3 (compositions x = 0.04 to 0.15) has been prepared by conventional solid state reaction. The phase purity and crystal structural changes were investigated with XRD, FTIR and Raman. The vibrational spectra reveal the inter...