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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 2    
Website: http://www.ijser.org
scirp IJSER >> Volume 3,Issue 2,February 2012
Synthesis, Structural and Conductivity studies of Vanadium doped Lithium Lanthanum Titanate for Solid Electrolytes
Full Text(PDF, )  PP.153-156  
Author(s)
K. Vijaya Babu, V. Veeraiah and P. S. V. Subba Ra
KEYWORDS
ABSTRACT
The Lithium-ion conducting materials are of much importance for the development of solid state Lithium-ion batteries and other electrochemical devices. The Lithium Lanthanum Titanate (LLT) shows the highest Li+ bulk conductivity at room temperature being potentially good electrolyte for solid state ionic devices. In the present study Lithium Lanthanum Titanate with doping of pentavalent vanadium prepared by solid state reaction method at high temperature. Precursors Li0.5-xLa0.5Ti1-xVxO3 (x=0, 0.5, 0.1 and 0.15) have perovskite cubic structure (Z=1). The crystalline phase and lattice parameter of the samples was observed in X-ray diffraction analysis. The surface morphology and microstructure of the samples was observed by Scanning Electron Microscope and Energy Dispersive Spectrum. To understand the bonding nature of these materials Raman spectrum was also performed. The ionic conductivity was measured by using Frequency Response analyzer (5Hz to 1MHz). The ionic conductivity increases with the concentration of vanadium increases. 
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