화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.37, 347-353, May, 2016
DOI10.1016/j.jiec.2016.03.042  Export Citation
Effect of TiO2 nanoparticles on structural, thermal, mechanical and ionic conductivity studies of PEO12-LiTDI solid polymer electrolyte
Anji Reddy Polu, and Hee-Woo Rhee†
  • Polymer Materials Lab, Department of Chemical and Biomolecular Engineering, Sogang University, 35 Baekbeom-Ro, Mapo-Gu, Seoul 121-742, South Korea
E-mail:
In the present study, poly(ethylene oxide) (PEO) complexed with lithium 2-trifluoromethyl-4,5- dicyanoimidazole (LiTDI) nanocomposite solid polymer electrolyte membranes (NSPEMs) have been prepared by solution cast technique using different weight percent of nano-sized TiO2 ceramic filler. The effect of filler incorporation on the structural, thermal, mechanical and ionic conductivity properties of solid polymer electrolytes have analyzed. X-ray diffraction (XRD) and polarized optical microscopy (POM) results indicated that the crystallinity has been reduced remarkably with the incorporation of TiO2 nanofiller. The thermal stability and mechanical integrity of the nanocomposite polymer electrolyte system increased significantly compared to filler free electrolytes. The maximum ionic conductivity is found to be in the range of 2.11 × 10-5 S cm-1 for 8 wt% TiO2 nanofiller in PEO12-LiTDI electrolyte system. These results indicated that the prepared TiO2 based nanocomposite membrane would be a promising alternative separator for rechargeable lithium-ion battery applications.
Keywords:Solid polymer electrolyte;TiO2 nanoparticles;Ionic conductivity;Thermal stability;Mechanical integrity
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