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。

    Fuel cell stack
    9.
    发明授权
    Fuel cell stack 失效
    燃料电池堆

    公开(公告)号:US06969564B2

    公开(公告)日:2005-11-29

    申请号:US10242119

    申请日:2002-09-12

    摘要: A cell assembly has reactant gas passages connected in series in first and second unit cells, and oxygen-containing gas inlets, intermediate oxygen-containing gas inlets, oxygen-containing gas outlets, intermediate oxygen-containing gas outlets which are defined in the first and second unit cells. The oxygen-containing gas inlets and the intermediate oxygen-containing gas inlets are disposed upwardly of the oxygen-containing gas outlets and the intermediate oxygen-containing gas outlets. The oxygen-containing gas outlets and the intermediate oxygen-containing gas outlets are disposed at least partly below electric energy generating surfaces of the first and second unit cells.

    摘要翻译: 电池组件具有在第一和第二单元电池中串联连接的反应气体通道,以及含氧气体入口,中间含氧气体入口,含氧气体出口,中间含氧气体出口,其定义在第一和第二单元电池中 第二单元电池。 含氧气体入口和中间含氧气体入口设置在含氧气体出口和中间含氧气体出口的上方。 含氧气体出口和中间含氧气体出口至少部​​分地设置在第一和第二单元电池的电能产生表面之下。