Development of a new polymer electrolyte (PMMA-CO-P4VPNO+KClO3) for solid state electrochemical cells

Polymer electrolyte films based on a co-polymer polymethyle methacrylate-co-poly 4vinyl pyridine N-oxide (PMMA-CO-P4VPNO) complexed with KClO₃ were prepared by solution cast technique. The complexation of KClO₃ salt with the polymer was confirmed by infrared studies. Measurements of the dc conductivity in the temperature range 300–410 K and transference numbers were carried out to investigate the charge transport in the polymer electrolyte system. Transference number data show that the charge transport in this polymer electrolyte system is predominantly due to ions. Using the polymer electrolyte solid state electrochemical cells were fabricated with the configuration (K)-(PMMA-CO-P4VPNO+KClO₃)-(I₂+C+electrolyte) and various parameters of the cells including open circuit voltage (OCV) and short circuit current (SCC) were evaluated. Paper presented at the 2nd International Conference on Ionic Devices, Anna University, Chennai, India, Nov. 28–30, 2003.