Solid Electrolyte Films in Controlling their Structures by Electrophoretic Deposition Method

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  • Nakamura Kota
    Department of Chemical Engineering and Materials Science, Doshisha University
  • Yamanaka Shinya
    Department of Chemical Engineering and Materials Science, Doshisha University
  • Shimosaka Atsuko
    Department of Chemical Engineering and Materials Science, Doshisha University
  • Shirakawa Yoshiyuki
    Department of Chemical Engineering and Materials Science, Doshisha University
  • Hidaka Jusuke
    Department of Chemical Engineering and Materials Science, Doshisha University

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  • 電気泳動法により構造制御された固体電解質の作製
  • デンキ エイドウホウ ニ ヨリ コウゾウ セイギョ サレタ コタイ デンカイシツ ノ サクセイ

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Improvement of proton conductivity of solid electrolyte films needs to form three-dimensional proton conduction routes by controlling the pore size and the pore structure between particles in particle films. A particle assemble method using electrophoretic deposition technique is useful for speedy and mass production assembly. In the electrophoretic deposition method, structure of particle array can be controlled by the electric field.<BR>As a result, the proton conductivity of the film showed a higher value for the regularly-arranged particle film and it is increased with a decrease in particle diameter. The proton conductivity of the film with the particles of diameter 50nm had the highest value. The particle film with the well-controlled structure may enable the fuel cell to be operated in the middle temperature range.

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