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    • 7. 发明专利
    • Solid polymer form water electrolysis apparatus and method of assembly
    • JP5281342B2
    • 2013-09-04
    • JP2008227374
    • 2008-09-04
    • 三菱重工業株式会社
    • 克明 井上彰博 坂西靖崇 浦下健一郎 小阪憲弘 福田秀昭 橋本弘一 武信康 森由則 小林隆 栗崎
    • C25B13/00C25B9/00
    • PROBLEM TO BE SOLVED: To provide a solid polymer type water electrolysis apparatus in which the surface pressure of a sealing member and that of a power feed body can be adjusted easily, the assembling cost of which can be reduced and in which the sealing member can be restrained from being affected by a high temperature environment. SOLUTION: The solid polymer type water electrolysis apparatus is provided with: a membrane electrode assembly 13 having electrodes on both surfaces of a solid polymer membrane 25 being an electrolyte; the oxygen electrode-side power feed body 15 and the hydrogen electrode-side power feed body 17 between which the membrane electrode assembly 13 is interposed and through each of which an electric charge is applied; an oxygen electrode-side separator 19 and a hydrogen electrode-side separator 21 which press the oxygen electrode-side power feed body 15 and the hydrogen electrode-side power feed body 17 respectively toward the membrane electrode assembly 13; and a rubber plate 23 for sealing the peripheral part of the membrane electrode assembly 13 and that of each of the separators under the surface pressure being predetermined times as high as that of each of the power feed bodies. The spring stiffness of the rubber plate 23 in the compression direction is made to be predetermined times as high as that of the oxygen electrode-side power feed body 15 and that of the hydrogen electrode-side power feed body 17 in the compression direction. COPYRIGHT: (C)2010,JPO&INPIT