Correlation of Ionic Conductivity of Lithium Borosilicotitanate Glasses with Structure

Lithium ion conducting glasses containing TiO 2 have been prepared by the conventional melt quenching technique. Electrical conductivity σ dc , activation energy E a , density ρ, molar volume V m , coefficient of thermal expansion (CTE) and glass transition temperature T g for all the glass samples were measured. The variation of electrical conductivity with addition of TiO 2 in lithium borosilicate system has been studied. The FTIR spectroscopy has been used for structural studies of these glasses. The decrease in conductivity with the addition of TiO 2 at the cost of modifier Li 2 O is explained on the basis of changes in glass structure revealed by the IR spectrum which is also supported by the T g , density and CTE variation. The electrical modulus spectra of the glasses have been studied to understand the conduction mechanism.