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Morphology and conductivity of in-situ PEO-LiClO4-TiO2 composite polymer electrolyte

  • Pan Chun-yue  (潘春跃)Email author
  • Feng Qing  (冯庆)
  • Wang Li-jun  (王丽君)
  • Zhang Qian  (张倩)
  • Chao Meng  (巢猛)
Article

Abstract

PEO-LiClO4-TiO2 composite polymer electrolyte films were prepared. TiO2 was formed directly in matrix by hydrolysis and condensation reaction of tetrabutyl titanate. The crystallinity, morphology and ionic conductivity of composite polymer electrolyte films were examined by differential scanning calorimetry, scanning electron microscopy, atom force microscopy and alternating current impedance spectroscopy, respectively. The glass transition temperature and the crystallinity of composite polymer electrolytes are decreased compared with those of PEO-LiClO4 polymer electrolyte film. The results show that TiO2 particles are uniformly dispersed in PEO-LiClO4-5%TiO2 composite polymer electrolyte film. The maximal conductivity of 5.5×10−5 S/cm at 20 °C of PEO-LiClO4-TiO2 film is obtained at 5% mass fraction of TiO2.

Key words

polyethylene oxide (PEO) TiO2 composite polymer electrolyte in-situ composite conductivity 

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Copyright information

© Published by: Central South University Press, Sole distributor outside Mainland China: Springer 2007

Authors and Affiliations

  • Pan Chun-yue  (潘春跃)
    • 1
    Email author
  • Feng Qing  (冯庆)
    • 1
  • Wang Li-jun  (王丽君)
    • 1
  • Zhang Qian  (张倩)
    • 1
  • Chao Meng  (巢猛)
    • 1
  1. 1.School of Chemistry and Chemical EngineeringCentral South UniversityChangshaChina

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