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    • 1. 发明申请
    • FUEL CELL MANUFACTURING METHOD AND FUEL CELL
    • 燃料电池制造方法和燃料电池
    • WO2005057711A2
    • 2005-06-23
    • PCT/JP2004018095
    • 2004-11-29
    • TOYOTA MOTOR CO LTDAOYAMA SATOSHIITO NAOKISATO HIROMICHI
    • AOYAMA SATOSHIITO NAOKISATO HIROMICHI
    • H01M8/02H01M4/86H01M4/88H01M4/94H01M8/04H01M8/10H01M8/12
    • H01M8/04216H01M4/881H01M4/8817H01M4/8867H01M4/94H01M8/1004H01M2300/0091Y02P70/56
    • The manufacturing method of the invention is applied to manufacture a unit fuel cell 20, which has a hydrogen-permeable metal layer 22 of a hydrogen-permeable metal and an electrolyte layer 21 that is located on the hydrogen-permeable metal layer 22 and has proton conductivity. The method first forms the electrolyte layer 21 on the hydrogen-permeable metal layer 22, and subsequently forms an electrically conductive cathode 24 on the electrolyte layer 21 to block off an electrical connection between the cathode 24 and the hydrogen-permeable metal layer 22. The method releases Pd toward the electrolyte layer 21 in a direction substantially perpendicular to the electrolyte layer 21 to form a Pd layer as the cathode 24 that is thinner than the electrolyte layer 21. This arrangement of the invention effective prevents a potential short circuit, for example, between the cathode and the hydrogen-permeable metal layer, in the fuel cell, due to pores present in the electrolyte layer.
    • 本发明的制造方法适用于制造具有透氢性金属的透氢性金属层22和位于透氢性金属层22上且具有质子的电解质层21的单位燃料电池20 电导率。 该方法首先在氢可渗透金属层22上形成电解质层21,随后在电解质层21上形成导电阴极24,以阻断阴极24与透氢金属层22之间的电连接。 方法在基本上垂直于电解质层21的方向上向电解质层21释放Pd,以形成比电解质层21薄的作为阴极24的Pd层。本发明的这种布置有效地防止了电位短路,例如 在阴极和透氢性金属层之间,在燃料电池中,由于存在于电解质层中的孔。
    • 4. 发明申请
    • MEMBRANE-ELECTRODE ASSEMBLY AND FUEL CELL
    • 膜电极组件和燃料电池
    • WO2006018705A2
    • 2006-02-23
    • PCT/IB2005002441
    • 2005-08-17
    • TOYOTA MOTOR CO LTDAOYAMA SATOSHIIGUCHI SATOSHITANIGUCHI MAKOTO
    • AOYAMA SATOSHIIGUCHI SATOSHITANIGUCHI MAKOTO
    • H01M8/12H01M4/94
    • C01B3/501C01B2203/0405H01M4/9033H01M4/9041H01M4/94H01M8/0232H01M8/0267H01M8/0297H01M8/241H01M8/2457H01M8/2483H01M2008/1293
    • An electrolyte layer (121) and a hydrogen-permeable metal layer (122) are fitted in a fitting portion (131) of a low thermal expansion member (130), and a cathode electrode (110) is provided on the electrolyte layer (121). Gas separators (100, 150) are provided such that a low thermal expansion member (130) is held between the gas separators (100, 150). Since the low thermal expansion member (130) is made of metal which has a. thermal expansion coefficient lower than that of the hydrogen-permeable metal layer (122), thermal expansion of the hydrogen-permeable metal layer (122) can be suppressed. Accordingly, it is possible to reduce shear stress applied to an interface between the electrolyte layer (121) and the hydrogen-permeable metal layer (122) due to the thermal expansion. It is possible to suppress separation of the electrolyte layer (121) from the hydrogen-permeable metal layer (122) and occurrence of a crack in the electrolyte layer (121).
    • 电解质层(121)和透氢性金属层(122)嵌合在低热膨胀部件(130)的嵌合部(131)中,阴极电极(110)设置在电解质层 )。 气体分离器(100,150)被设置成使得低热膨胀构件(130)保持在气体分离器(100,150)之间。 由于低热膨胀构件(130)由具有a的金属制成。 热膨胀系数低于透氢性金属层(122)的热膨胀系数,可以抑制透氢性金属层(122)的热膨胀。 因此,由于热膨胀,可以减少施加到电解质层(121)和氢可渗透金属层(122)之间的界面的剪切应力。 可以抑制电解质层(121)与透氢性金属层(122)的分离,并且在电解质层(121)中产生裂纹。