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    • 4. 发明申请
    • FUEL CELL
    • 燃料电池
    • US20090042090A1
    • 2009-02-12
    • US12088199
    • 2006-09-25
    • Nobuyasu NegishiJun MommaYumiko TakizawaYukinori AkamotoYuuichi SatoGenta Oomichi
    • Nobuyasu NegishiJun MommaYumiko TakizawaYukinori AkamotoYuuichi SatoGenta Oomichi
    • H01M8/00
    • H01M8/1011H01M4/8657H01M8/0245H01M8/0271H01M8/0273H01M8/04171H01M8/04201H01M8/1009H01M8/246H01M2004/8689Y02E60/523
    • The present invention provides a fuel cell comprising: a cathode catalyst layer 2; an anode catalyst layer 3; a proton conductive membrane 6 disposed between the cathode catalyst layer 2 and the anode catalyst layer 3; a liquid fuel tank 9 for storing a liquid fuel L; a fuel vaporizing layer 10 for supplying a vaporized component of the liquid fuel L to the anode catalyst layer 3; a surface layer 15 having an air intake port 14 for supplying an air to the cathode catalyst layer 2; and a moisture retention plate 13A, disposed between the surface layer 15 and the cathode catalyst layer 2, for preventing water generated at the cathode catalyst layer from being evaporated, wherein the moisture retention plate is composed of a laminated body comprising at least two kind of porous members 13a and 13b each having different moisture permeability (moisture retention property). According to the above structure, the water content generated at the cathode catalyst layer can be properly released as battery reaction is advances, and a part of the water content can be flown back to the anode catalyst layer side whereby cell output characteristics can be improved.
    • 本发明提供一种燃料电池,包括:阴极催化剂层2; 阳极催化剂层3; 设置在阴极催化剂层2和阳极催化剂层3之间的质子传导膜6; 用于储存液体燃料L的液体燃料箱9; 用于将液体燃料L的蒸发成分供给到阳极催化剂层3的燃料蒸发层10; 具有用于向阴极催化剂层2供给空气的进气口14的表面层15; 以及设置在表面层15和阴极催化剂层2之间用于防止在阴极催化剂层产生的水蒸发的保湿板13A,其中保湿板由层叠体构成,该层压体包括至少两种 各自具有不同的透湿性(保湿性)的多孔部件13a,13b。 根据上述结构,由于电池反应进行,阴极催化剂层产生的含水量可以适当地释放,并且一部分含水量可以回流到阳极催化剂层侧,从而能够提高电池输出特性。