Low cost fuel cell bipolar plate and process of making the same
    25.
    发明授权
    Low cost fuel cell bipolar plate and process of making the same 有权
    低成本燃料电池双极板和制造相同的工艺

    公开(公告)号:US09136545B2

    公开(公告)日:2015-09-15

    申请号:US12038007

    申请日:2008-02-27

    摘要: Fuel cell bipolar plates are made by depositing a pinhole free corrosion resistant and/or a conductive layer on a metal plate using an atomic layer deposition method. In one embodiment, a conductive layer is deposited on an anodized metal plate using atomic layer deposition method. In another embodiment, at least one corrosion resistant metal oxide layer and at least one conductive layer are deposited on a metal plate individually using atomic layer deposition method. In yet another embodiment, a corrosion resistant and conductive metal oxynitride layer is deposited on a metal plate using an atomic layer deposition method.

    摘要翻译: 燃料电池双极板通过使用原子层沉积方法在金属板上沉积无孔耐腐蚀和/或导电层而制成。 在一个实施例中,使用原子层沉积方法将导电层沉积在阳极化金属板上。 在另一个实施例中,使用原子层沉积法分别在金属板上沉积至少一个耐腐蚀金属氧化物层和至少一个导电层。 在另一个实施例中,使用原子层沉积方法在金属板上沉积耐腐蚀和导电的金属氧氮化物层。

    Water removal features for PEMfc stack manifolds
    29.
    发明授权
    Water removal features for PEMfc stack manifolds 有权
    PEMfc堆叠歧管的除水功能

    公开(公告)号:US08168340B2

    公开(公告)日:2012-05-01

    申请号:US11936633

    申请日:2007-11-07

    IPC分类号: H01M8/06 H01M8/04

    摘要: A bipolar plate includes angled facets oriented to form V-shaped projections on the plate edge. Liquid leaving the reactant channels is drawn back into the V-shaped grooves of the projections, leaving no liquid to obstruct the channel exit openings. The bipolar plate includes one portion of the bipolar plate offset from another portion of the bipolar plate so as to expose the reactant channels. The liquid is drawn toward the end portions of the reactant channels by capillary forces, while the gas flows can exit near the beginning of the offset portion. A fuel cell stack includes angled facets that are rotated to lie in the plane of the bipolar plate edges. The edges are chamfered so the channel exit openings of the reactant channels are at the tip portions thereof, thus allowing the liquid to flow away from the channel exit openings and the gas to exit freely.

    摘要翻译: 双极板包括定向成在板边缘上形成V形突起的倾斜小平面。 离开反应物通道的液体被拉回到突起的V形槽中,没有液体阻碍通道出口。 双极板包括从双极板的另一部分偏移的双极板的一部分,以暴露反应物通道。 液体通过毛细管力被吸引到反应物通道的端部,而气体流可以在偏移部分的开始附近离开。 燃料电池堆包括旋转以位于双极板边缘的平面中的倾斜小平面。 边缘被倒角,使得反应物通道的通道出口开口处于其顶端部分,从而允许液体从通道出口开口和气体离开自由地流出。