Ionic Conduction Studies of P(VP/AC) Polymer Electrolytes for Lithium Battery Applications

New polymer electrolyte composed of P(VP/AC) copolymer with different concentration of (LiClO4) salt are prepared by solution casting technique. The polymer electrolyte films are subjected to X-ray diffraction, ac impedance, Scanning electron microscope and Thermogravimetric studies to analyse the structure, complexation behaviour, ionic conductivity, surface morphology, and thermal stability respectively. The ionic conductivity of the complex is fine-tuned by the salt concentration thereby the optimum composition is achieved. The temperature dependent conductivity increases due to the increase of ionic mobility and segmental mobility. The polymer electrolyte of P(VP/AC)(90 wt. %)-LiClO4 (15 wt. %) exhibits highest conductivity of 2.04x10(-5) S/cm with good thermal stability.