Abstract
The intention of this work was to study transport properties of lithium conducting composite polymer electrolytes. The study was carried out on the polyvinylidenefluoride – hexafluorpropylene containing Li1.3Al0.3Ti1.7(PO4)3 solid electrolyte over the range 20 to 80% (vol.) at 20–150°C. It was established that activation energy of lithium conductivity increases with fraction of copolymer. It has been found that concentration dependence of conductivity obeys the modified equation of mixing. The conductivity values of composite polymer electrolytes was established to be noticeably lower than that of ceramic sample of pure Li1.3Al0.3Ti1.7(PO4)3. It has been shown that solid electrolyte addition decreases glass transition temperature of polymer matrix.
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