Study on Lithium Fast Ion Conductors of Li3xLa0.67-xInyTi1-2yPyO3 System
来源期刊：JOURNAL OF RARE EARTHS2003年第5期
论文作者：王文继 章宁 李荣华
Key words：perovskite; bulk conductivity; lithium fast ion conductor; rare earths;
Abstract: Perovskite-type lithium fast ion conductors of Li3xLa0.67-xInyTi1-2yPyO3 system were prepared by solid state reaction. X-ray powder diffraction shows that perovskite solid solution forms in the ranges of x=0.10～0.12, y≤0.2. AC impedance measurements indicate that the bulk conductivities and the total conductivities are of 1×10-4 and 1×10-5 S*cm-1 at 25 ℃ respectively. The compositions have low bulk activation energies of 20 kJ*mol-1 in the temperature ranges of 298～523 K and total activation energies of 40 kJ*mol-1 in the temperature ranges of 298～623 K.
王文继1，章宁1，李荣华1
(1.Department of Chemistry, Fuzhou University, Fuzhou 350002, China)
Abstract:Perovskite-type lithium fast ion conductors of Li3xLa0.67-xInyTi1-2yPyO3 system were prepared by solid state reaction. X-ray powder diffraction shows that perovskite solid solution forms in the ranges of x=0.10～0.12, y≤0.2. AC impedance measurements indicate that the bulk conductivities and the total conductivities are of 1×10-4 and 1×10-5 S*cm-1 at 25 ℃ respectively. The compositions have low bulk activation energies of 20 kJ*mol-1 in the temperature ranges of 298～523 K and total activation energies of 40 kJ*mol-1 in the temperature ranges of 298～623 K.
Key words:perovskite; bulk conductivity; lithium fast ion conductor; rare earths;
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