FTIR and electrical behavior of blend electrolytes based on (PVA/PVP)

Abstract

Solution cast method was used to create the polymer electrolytes. Under certain circumstances, the electrolyte content of polymers was determined using constant percent PVA/PVP(50:50),EC and PC (1:1) with various quantities of KI (10, 20, 30, 40, 50 wt. %) and iodine I2 = 10 % of salt wt. The complicated formation of polymer blends was validated by FTIR investigations. Electrical conductivity was measured using an impedance analyzer at frequencies ranging from 50 Hz to 1MHz and temperatures ranging from 293 K to 343 K. At ambient temperature, an electrolyte with 50% KI content had a higher electrical conductivity value of 5.3 10-3 (S/cm). The magnitude of electrical conductivity increased as salt content and temperature rose. The blend electrolytes' greater dielectric at lower frequencies might be owing to the dipoles having enough time to align with the electric field, resulting in stronger polarisation. The reduction in activation energy (Ea) suggests that faster-conducting electrolytes prefer to move with less energy.

Keywords

• electrolyte
• impedence
• conductivity
• polymers
• FTIR