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    • 85. 发明公开
    • SEPARATOR AND PRODUCTION METHOD FOR SEPARATOR
    • Separator und Herstellungsverfahrendafür
    • EP1686641A1
    • 2006-08-02
    • EP04818211.7
    • 2004-11-08
    • Nitta Corporation
    • KOBUCHI, Yasushi, Nara Factory of NITTA CORP.KASAZAKI, Toshiaki, Nara Factory of NITTA CORP.NISHIO, Tomohiro, Nara Factory of NITTA CORP.USAMI, Ikuzo
    • H01M8/02H01M8/10
    • H01M8/242H01M8/0206H01M8/0221H01M8/0228H01M8/0254H01M8/026H01M8/0263H01M8/0267H01M8/0271H01M8/2483Y02P70/56
    • A separator that is excellent in workability and corrosion resistance, and allows a reduction in the number of constituent components of a fuel cell and the number ofmanufacturingprocess steps, and a manufacturing method therefor are provided. A separator (1) includes a separating section (13) for achieving separation between a hydrogen gas channel and an oxygen gas channel, and a sealing section disposed along an outer periphery of the separator, for preventing leakage of hydrogen and oxygen gases. The separating section (13) and the sealing section (14) are formed integrally with each other by means of plastic deformation processing, e.g., press working, of a metal thin sheet. A coating layer (31) is formed on the metal thin sheet (30) to coat the metal thin sheet' s surface, and a DC power generated at an interface between a high polymer membrane (20) and a catalytic electrode (21) on contact of the coating layer (31) with the catalytic electrode (21) is taken out as a DC current and is collected at a power collector plate after passing through an interior of the separator (1). A high polymer elastic layer (40) is provided at the part contacting the high polymer membrane (20) of a sealing projection of the sealing section (14). The polymer elastic layer (40) contacts the polymer film (20) to seal.
    • 提供了加工性和耐腐蚀性优异并且能够减少燃料电池的构成成分数量和制造工艺步骤数量的隔板及其制造方法。 分离器(1)包括用于实现氢气通道和氧气通道之间的分离的分离部分(13)和沿隔板的外周设置的密封部分,用于防止氢气和氧气泄漏。 分离部分(13)和密封部分(14)通过金属薄片的塑性变形处理(例如冲压加工)彼此一体地形成。 在金属薄片(30)上形成涂层(31)以涂覆金属薄片表面,并且在高分子膜(20)和催化电极(21)之间的界面处产生的DC电力 将涂层(31)与催化剂电极(21)的接触作为直流电流取出,并在通过分离器(1)的内部后收集在集电板上。 在与密封部分(14)的密封突起的高分子膜(20)接触的部分处设置高分子弹性层(40)。 聚合物弹性层(40)与聚合物膜(20)接触以密封。