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A microporous polymer membrane based on polyvinyl chloride (PVC) was obtained by a novel polymer dissolution technique in different compositions of (PVC-PVA). The structural study of the prepared PVC microporous membrane was carried out by x-ray diffraction. TGA/DTA analysis reveals that the microporous polymer membrane is thermally stable up to 600 0 C. Ionic conductivity of polymer membrane electrolytes have been determined by impedance studies in the temperature of 303- 343 K by varying the PVA content in PVC matrix. The ionic conductivity at room temperature was significantly enhanced about 5.431x10 -4 S/cm when the weight ratio of PVA was 40 wt%. Finally the effect of different lithium salt concentration was also studied for the microporous polymer electrolyte of high ionic conductivity system. A maximum ionic conductivity of 1.29x10 -3 S/cm was obtained for 3 M LiClO4 electrolyte solution at ambient temperature.

Ionic Conductivity of PVC Based Microporous Polymer Membrane Electrolyte