Abstract
Alkaline composite polymer electrolyte films, which composed of PVA polymer with a glass–fiber–cloth mat and various alkali hydroxides, were obtained by a solution cast method. The crystal structure properties of composite PVA polymer electrolyte films were examined by XRD. The XRD results revealed that the amorphous domain of PVA polymer matrix was increased when the KOH was blended. It was found that the ionic conductivity of composite electrolyte films with different alkali hydroxides is at the level of 10 −2 S/cm at room temperature. The ionic conductivity of the alkaline polymer electrolyte is highly dependent on the composition of KOH and H 2O in the films. The chemical composition of composite PVA polymer electrolytes was quantitatively examined by ionic chromatographic (IC) analysis. The IC composition results reveal that the chemical composition of alkaline PVA polymer electrolyte films can be tailored to optimum the performance of alkaline composite polymer films.
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