Polymer electrolyte fuel cell stack and operating method thereof
    1.
    发明授权
    Polymer electrolyte fuel cell stack and operating method thereof 失效
    聚合物电解质燃料电池堆及其操作方法

    公开(公告)号:US07459231B2

    公开(公告)日:2008-12-02

    申请号:US10469878

    申请日:2002-03-05

    IPC分类号: H01M8/04 H01M8/10 H01M8/24

    摘要: A fuel cell stack (10) includes a first sub-stack (12), a second sub-stack (14), and a third sub-stack (16) disposed in the flow direction of an oxidizing gas. An intermediate plate (18a) is interposed between the first and second sub-stacks (12, 14), and an intermediate plate (18b) is interposed between the second and third sub-stacks (14, 16). In this fuel stack (10), the flow of an oxidizing gas is set such that the oxidizing gas flows in series in the direction from the first sub-stack (12) to the third sub-stack (16). Between the sub-stacks additional oxidizing gas supplies (70,74) are provided through which oxidizing gas of lower humidity than the humidity of the oxidizing gas entering the first sub-stack is supplied. This arrangement allows an efficient management of the humidity water content of the oxidizing gas with sufficient moisturizing of the solid polymer membrane whilst avoiding excessive condensation of water vapour within the stack.

    摘要翻译: 燃料电池堆(10)包括沿氧化气体的流动方向设置的第一子堆(12),第二子堆(14)和第三子堆(16)。 中间板(18a)插入在第一和第二子堆叠(12,14)之间,并且中间板(18b)插入在第二和第三子堆叠(14,16)之间。 在该燃料堆(10)中,氧化气体的流动被设定为使得氧化气体沿从第一副堆叠(12)到第三子堆(16)的方向串联流动。 在副堆叠之间,提供另外的氧化气体供应源(70,74),通过该氧化剂供应源供应比进入第一子堆的氧化气体的湿度低的氧化气体。 这种布置允许通过足够的固体聚合物膜的保湿来有效地管理氧化气体的湿度含水量,同时避免堆叠内的水蒸气过度冷凝。

    Separator unit and fuel cell with separator unit
    8.
    发明授权
    Separator unit and fuel cell with separator unit 有权
    分离器单元和带分离器单元的燃料电池

    公开(公告)号:US07195837B2

    公开(公告)日:2007-03-27

    申请号:US10439907

    申请日:2003-05-16

    IPC分类号: H01M2/00 H01M2/02 H01M2/14

    摘要: A first separator of a unit cell and a second separator of another unit cell and are disposed adjacent to each other in a stacked assembly. Crest surfaces of straight sections of first hollow ridges of the first separator are in contact with crest surfaces of second hollow ridges of the second separator, and crest surfaces of bent sections of the first hollow ridges are spaced from crest surfaces of the second hollow ridges. The spaced crest surfaces allow first troughs of the first separator and second troughs of the second separator to communicate with each other, providing communication passages between the first separator and the second separator. Cooling water is passed through the communication passages.

    摘要翻译: 单元电池的第一分离器和另一个单元电池的第二分离器,并且以堆叠的组件彼此相邻地设置。 第一分离器的第一空心脊的直线部分的波峰表面与第二分离器的第二空心脊的波峰表面接触,并且第一空心脊的弯曲部分的波峰表面与第二空心脊的顶表面间隔开。 间隔开的峰表面允许第一分离器的第一槽和第二分离器的第二槽彼此连通,从而在第一分离器和第二分离器之间提供连通通道。 冷却水通过连通通道。