Synthesis and characterization of hot pressed ion conducting solid polymer electrolytes: (1 – x) PEO: x NaClO₄

¹ Solid State Physics Research Laboratory, Department of Applied Physics, Shri Shankracharya Institute of ProfessionalManagement & Technology, Raipur 492 015, Chhattisgarh, India
² Dr. C.V. Raman University, Kargi Road, Kota, Bilaspur 495 113, Chhattisgarh, India
³ Department of Chemistry, Govt. Pataleswar College, Masturi 495 551, Chhattisgarh, India

^a e-mail: chandrassi@gmail.com

Received: 2 September 2014
Revised: 29 November 2014
Accepted: 2 February 2015
Published online: 27 February 2015

Abstract

Synthesis and ion transport characterization of hot-pressed poly(ethylene oxide) PEO-based solid polymer electrolytes (SPEs): (1 – x) PEO: x NaClO₄, where 0 < x < 50 wt.%, are reported. The composition: (70PEO: 30NaClO₄) with ionic conductivity (σ) ~ 7.07 × 10⁻⁷ S cm⁻¹ shows the highest conducting composition and this have been referred to as optimum conducting composition (OCC). Materials characterization and thermal behavior of the present SPEs have been done with the help of XRD, FTIR, SEM, DSC and TG analysis. To determine the activation energy, temperature dependent ionic conductivity (σ) of different compositions has been measured. Ionic nature of the SPEs has been explained with the help of ionic transference number (t_ion) measurements. Finally, the thin film polymer battery is also fabricated using the SPE OCC as electrolyte and calculated their cell parameters at room temperature.