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Polymeric Gel Electrolytes for Electric Double Layer Capacitors

전기이중층 캐패시터에 관한 폴리머 겔 전해액

  • Morita, Masayuki (Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering, Yamaguchi University) ;
  • Qiao, Jin-Li (Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering, Yamaguchi University)
  • Published : 2003.05.01

Abstract

Proton conducting polymeric gels as the electrolytes of electrochemical capacitors have been prepared by two different methods: 1) swelling a polymethacrylate-based polymer matrix in aqueous solutions of inorganic and organic acids, and 2) polymerizing complexes of anhydrous acids and prepolymers with organic plasticizer. The FT-IR spectra strongly suggest that the carbonyl groups in the polymer matrix interact with protons from the doped acids. High ionic (proton) conductivity in the range of $6\times10^{-4}-4\times10^{-2}\;S\;cm^{-1}$ was obtained at room temperature for the aqueous gels. The non-aqueous polymer complexes showed rather low ionic conductivity, but it was about $10^{-3}\;S\;cm^{-1}\;at\;70^{\circ}C$ for the $H_3PO_4$ doped polymer electrolyte. The mechanisms of ion (proton) conduction in the polymeric systems are discussed.

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References

  1. J. Electrochem. Soc. v.140 no.L109 Y.Matsuda;M. morita;M. Ishikawa;M. Ihara https://doi.org/10.1149/1.2220779
  2. J. Electrochem. Soc. v.141 no.1730 M. Ishikawa;M. Morita;M. Ihata;Y. Matsuda https://doi.org/10.1149/1.2054995
  3. Electrochim, Acta v.40 no.2217 M. Ishikawa;M. I hara;M. Morita;Y. Matsuda https://doi.org/10.1016/0013-4686(95)00166-C
  4. Mat. Res Soc. Symp. Proc. v.575 no.423 M. Ishikawa; T Kishino;N. Katada;M Morita
  5. J. Power Sources v.105 J. L. Qiao;N. Yoshimoto;M. Ishikawa;M. Morita
  6. Electrochim Aacta v.47 no.3441 J. L. Qiao;N. Yoshimoto;M. shikawa;M. Morita https://doi.org/10.1016/S0013-4686(02)00280-3
  7. Electrochem. Solid-State Lett. v.5 no.H7 J. H. Park;O. O. Park;K. H. Shin;C. S. Jin;J. H. kim https://doi.org/10.1149/1.1432245
  8. Soild State Ionics v.97 no.347 J. R. Stevens;W. Wieczorek;D. Raducha;K. R. Jeffrey https://doi.org/10.1016/S0167-2738(97)00036-2
  9. Chem. Mater. v.12 no.3578 G. Zukowska;N. Chojnacka;W. Wieczorek https://doi.org/10.1021/cm0010699
  10. J. Electrochem. Soc. v.137 no.3401 M. Morita;Y. Fukumasa;M. Motoda;H. Tsutsumi;Y. Matsuda;T. Takahashi;H. Ashitaka