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.
