Journal of Electroceramics

, Volume 17, Issue 2–4, pp 941–944

Enhanced ionic conductivity in PEO-LiClO4 hybrid electrolytes by structural modification

  • Jin-Kyung Lee
  • Yong-Ji Lee
  • Won-Seok Chae
  • Yun-Mo Sung
3. Nanomaterials and synthesis

DOI: 10.1007/s10832-006-7672-7

Cite this article as:
Lee, JK., Lee, YJ., Chae, WS. et al. J Electroceram (2006) 17: 941. doi:10.1007/s10832-006-7672-7
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Abstract

Poly(ethylene oxide)-LiClO4-TiO2 organic-inorganic hybrids were synthesized for Li-polymer battery electrolytes using sol-gel processing. The hybrids containing TiO2 component showed the uniform film formation and also increased ionic conductivity. The hybrid films containing 10 wt% TiO2 showed the smooth surface morphologies and also the highest ionic conductivity. The molecular-level hybrid formation between PEO and TiO2 components was identified using FTIR analyses. The hybrids containing TiO2-Al2O3 mixtures showed the enhanced ionic conductivity compared to those containing only TiO2 most probably due to the Lewis acidic group formation at the surface of Al2O3 components. The PEO-LiClO4-TiO2-Al2O3 hybrids showed high stability both in ionic conductivity and crystallinity. By the sol-gel processing two inorganic components were successfully introduced in the PEO matrix and high-performance solid electrolytes were achieved.

Keywords

Sol-Gel Hybrid PEO Filler Ionic conductivity 

Copyright information

© Springer Science + Business Media, LLC 2006

Authors and Affiliations

  • Jin-Kyung Lee
    • 1
  • Yong-Ji Lee
    • 1
  • Won-Seok Chae
    • 2
  • Yun-Mo Sung
    • 3
  1. 1.Department of Materials Science & EngineeringDaejin UniversityKyunggi-doSouth Korea
  2. 2.Department of ChemistryDaejin UniversityKyunggi-doSouth Korea
  3. 3.Department of Materials Science & EngineeringKorea UniversitySeoulSouth Korea

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