Fuel cell stack
    41.
    发明授权
    Fuel cell stack 失效
    燃料电池堆

    公开(公告)号:US06936369B1

    公开(公告)日:2005-08-30

    申请号:US09691833

    申请日:2000-10-18

    摘要: A fuel cell stack is provided with an outlet side oxygen-containing gas communication hole. First and second oxygen-containing gas flow passage grooves are provided in the direction of the gravity while meandering in the horizontal direction on a surface of a first separator. The second oxygen-containing gas flow passage grooves communicate with the outlet side oxygen-containing gas communication hole via second oxygen-containing gas connecting flow passages. A porous water-absorbing tube, which is used to discharge water to the outside of the fuel cell stack in accordance with the capillary phenomenon and the difference in pressure of air, is provided for the is outlet side oxygen-containing gas communication hole.

    摘要翻译: 燃料电池堆设置有出口侧含氧气体连通孔。 在第一分离器的表面上沿着水平方向蜿蜒地在重力方向上设置第一和第二含氧气体流道槽。 第二含氧气体流路槽经由第二含氧气体连通流路与出口侧含氧气体连通孔连通。 用于排出侧含氧气体连通孔,用于根据毛细管现象和空气压力差将水排放到燃料电池堆的外部的多孔吸水管。

    Electrode for solid polymer fuel cell
    46.
    发明授权
    Electrode for solid polymer fuel cell 有权
    固体聚合物燃料电池用电极

    公开(公告)号:US07232627B2

    公开(公告)日:2007-06-19

    申请号:US10703072

    申请日:2003-11-07

    IPC分类号: H01M4/00

    摘要: An electrode for a solid polymer fuel cell includes a gas diffusion layer, an electrode catalyst layer disposed between a solid polymer membrane of the fuel cell and the gas diffusion layer, and a water-holding layer disposed between the gas diffusion layer and the electrode catalyst layer. Under high-relative humidity conditions of reaction gases, flooding can be prevented because the electrode catalyst layer is made porous, while under low-relative humidity conditions of reaction gases, sufficient water contents can be stably provided thanks to the water-holding layer so that proton conductivity of the solid polymer membrane can be maintained appropriately. Consequently, high-performance and high-durability electrode and membrane electrode assembly for a solid polymer fuel cell can be provided such that the performance and the durability thereof are not affected by change in relative humidity in reactant gases supplied to the solid polymer fuel cell.

    摘要翻译: 固体高分子型燃料电池用电极包括气体扩散层,设置在燃料电池的固体聚合物膜与气体扩散层之间的电极催化剂层和配置在气体扩散层与电极催化剂之间的保水层 层。 在反应气体的高相对湿度条件下,由于电极催化剂层为多孔,可以防止溢流,而在反应气体的低相对湿度条件下,由于保水层能够稳定地提供足够的水含量, 可以适当地维持固体聚合物膜的质子传导性。 因此,可以提供用于固体聚合物燃料电池的高性能和高耐久性的电极和膜电极组件,使得其性能和耐久性不受供应到固体聚合物燃料电池的反应气体中相对湿度的变化的影响。