Investigation of ionic liquid-based poly(vinyl alcohol) proton conductor for electrochemical double-layer capacitor. (September 2014)

• Record Type: Journal Article
• Authors: Liew, Chiam-Wen; Ramesh, S.; Arof, A. K.
• Is Part Of: High performance polymers. Volume 26:Number 6(2014:Sep.)
• Page Start: 632
• Page End: 636
• Publication Date: 2014-09
• Subjects: PVA -- conductivity -- ionic liquid -- DSC -- crystallinity -- EDLC; Polymerization -- Periodicals; Polymers -- Periodicals; 547.7
• DOI: 10.1177/0954008314536212
• Languages: English
• ISSNs: 0954-0083

Abstract

Ionic liquid-based poly(vinyl alcohol) (PVA) proton-conducting polymer electrolytes are prepared using solution casting technique. The effect of adding 1-butyl-3-methylimidazolium iodide (BmImI) ionic liquid into PVA-ammonium acetate polymer system is investigated in this work. Ionic conductivity of polymer electrolytes is increased by two orders of magnitude upon inclusion of 70 wt% of BmImI. Addition of ionic liquid reduces the glass transition temperature and crystallinity of polymer electrolytes. Electrical double-layer capacitors (EDLCs) are assembled using dip-coating technique. The electrochemical properties of fabricated EDLCs are analysed using cyclic voltammetry.