Membrane-electrode assembly for polymeric membrane fuel cell
    1.
    发明授权
    Membrane-electrode assembly for polymeric membrane fuel cell 有权
    用于聚合物膜燃料电池的膜 - 电极组件

    公开(公告)号:US07144652B2

    公开(公告)日:2006-12-05

    申请号:US10011458

    申请日:2001-10-22

    IPC分类号: H01M4/86

    摘要: The invention is relative to a membrane-electrode assembly for fuel cells, comprising a state of the art ion-exchange polymeric membrane and state of the art gas diffusion electrodes, whose electrochemical properties are modified through the addition of a hydrophilic component localized in correspondence to one or both the electrodic interfaces and/or one or both the external surfaces of the membrane. The modified membrane-electrode assembly is characterized by high protonic conductivity and high efficiency even in the presence of small quantities of carbon monoxide, or of other contaminants contained in the fuel, even at temperatures as low as 100° C., being also suitable for medium temperature (100–160° C.) operation at relative humidity level lower than saturation.

    摘要翻译: 本发明涉及用于燃料电池的膜 - 电极组件,其包括现有技术的离子交换聚合物膜和现有技术的气体扩散电极,其电化学性质通过添加相应于 膜的一个或两个电极界面和/或一个或两个外表面。 改进的膜 - 电极组件的特征在于即使在少量一氧化碳或燃料中包含的其它污染物的情况下,甚至在低至100℃的温度下也具有高质子传导性和高效率,也适用于 中等温度(100-160°C),相对湿度低于饱和度。