Abstract
A solid polymer electrolyte system based on poly(vinyl pyrrolidone) (PVP) complexed with sodium chlorite (NaClO 3) salt has been prepared by a solution — cast technique. Several experimental techniques, such as composition-dependence conductvity, temperature-dependence conductivity in the temperature range of 303–398 K and transport number measurements, have been employed to characterize this polymer electrolyte system. The conductivity of the (PVP+NaClO 3) electrolyte is about 10 4 times larger than that of pure PVP at room temperature. Transport number measurements show that the charge transport is mainly due to ions. An electrochemical cell with the configuration Na/(PVP+NaClO 3)/(I 2+C+electrolyte) has been fabricated and its discharge characteristics studied. The open-circuit voltage and short-circuit current are 2.77 V and 1.35 mA, respectively. A number of other cell parameters are reported.
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