New polymer electrolytes using Chitosan and Poly(vinyl alcohol)[PVA] with different weight percent (wt%) have been prepared using solution cast technique. The low conductivity of this system (S/cm) was enhanced due to the dissociation of lithium trifluoromethanesulfonate (LiCF 3 SO 3) added to the blend. The ac conductivity of the polymer electrolytes has been investigated by using impedance spectroscopy method in the frequency range of 100 kHz to 5 MHz at room temperature. Result for

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... ty studies has shown that the sample with 45% lithium trifluoromethanesulfonate exhibits the highest conductivity of 1.241 x 10-4 S/cm at room temperature. The enhanced conductivity observed was due to complexation occurred between the Li + cation and the lone pair electron of the nitrogen (N) and oxygen (O) atoms present in the polymer blend. Infrared spectroscopy was employed to confirm the polymer-salt complexation.