Abstract
With a view to the development of a lithium—borate based glass material with high ionic conductivity at the lowest possible temperature, the conductivities of different compositions of the Li 2OB 2O 3 glass system have been studied. The effect of LiNbO 3 addition on the temperature dependent conductivity of the Li 2OB 2O 3 (40:60 mol%) system, which shows maximum conductivity within the homogeneous glass formation region, was observed. The enhancement in the conductivity, 1.43 × 10 −2 (ohm cm) −1 at 623 K, has been attributed to the increase in Li ion concentration and to its mobility which is due to vacant sites provided by the pentavalent Nb ion of Nb 2O 5. The conductivities achieved in the present investigation have been compared with earlier reports on similar systems. This material may be suitable as an electrolyte for application to power sources.
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