Nanocomposite polymer electrolytes prepared by in situ polymerization on the surface of nanoparticles for lithium-ion polymer batteries

Zhou, Ji; Gao, Deshu; Li, Zhaohui; Lei, Gangtie; Zhao, Tiepeng; Yi, Xiaohua

doi:10.1351/PAC-CON-09-11-19

Pure Appl. Chem., 2010, Vol. 82, No. 11, pp. 2167-2174

http://dx.doi.org/10.1351/PAC-CON-09-11-19

Published online 2010-08-06

Nanocomposite polymer electrolytes prepared by in situ polymerization on the surface of nanoparticles for lithium-ion polymer batteries

Ji Zhou, Deshu Gao*, Zhaohui Li, Gangtie Lei, Tiepeng Zhao and Xiaohua Yi

Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China

Abstract: A kind of nanocomposite polymer based on poly(acrylonitrile-methyl methacrylate) [P(AN-MMA)] copolymer was prepared by in situ polymerization of monomers on the surface of TiO₂ nanoparticles, which come from the hydrolysis of Ti(OC₄H₉)₄. Analysis of Fourier transform-infrared (FT-IR) spectra indicated that the acrylonitrile (AN) monomers copolymerized with the methyl methacrylate (MMA) monomers by breaking their own double bonds. The dependence of ionic conductivity on temperature for the resulting nanocomposite polymer electrolyte (NCPE) followed the Arrhenius equation. The ionic conductivity of the NCPE was 1.12 × 10^–3 S cm^–1 at room temperature when the nanocomposite polymer membrane (NPM) contained 10.8 % of mass fraction of TiO₂ nanoparticles.