Fuel cell stack
    47.
    发明授权
    Fuel cell stack 有权
    燃料电池堆

    公开(公告)号:US07348093B2

    公开(公告)日:2008-03-25

    申请号:US11063579

    申请日:2005-02-24

    IPC分类号: H01M8/02 H01M8/04 H01M8/24

    摘要: The invention relates to a fuel cell stack which is composed of several individual fuel cells that are stacked on top of each other. Each of said fuel cells comprises a cathode-electrolyte-anode unit (7) and a perforated film (1) which distributes a combustible gas across the first electrode surface thereof, supports the cathode-electrolyte-anode unit (7), and is combined into a cassette (4) that is provided with a hollow space along with an additional structure (3). The combustible gas reaches the first electrode (7A) via said cassette (4). The side of each cassette (4), which is located opposite the cathode-electrolyte-anode unit (7), is provide with a structure for distributing atmospheric oxygen across the surface of the second electrode of a neighboring cassette such that the stack is formed by several superimposed cassettes (4), between the film (1) of which a cathode-electrolyte-anode unit (7) and the structure for distributing atmospheric oxygen across the surface of the second electrode are disposed along with the additional structure (3). In order to brace the individual cassettes against each other in a housing or similar, the inventive stack comprises at least one bracing cassette, the walls of which are impermeable and which is filled with a material that expands to a relatively great extent when being heated.

    摘要翻译: 本发明涉及一种燃料电池堆,其由堆叠在彼此顶部的多个单个燃料电池组成。 每个所述燃料电池包括阴极 - 电解质 - 阳极单元(7)和在其第一电极表面上分布可燃气体的穿孔膜(1),支撑阴极 - 电解质阳极单元(7),并且被组合 进入具有中空空间的附加结构(3)的盒(4)中。 可燃气体经由所述盒(4)到达第一电极(7A)。 与阴极 - 电解质 - 阳极单元(7)相对的每个盒(4)的侧面提供了用于在相邻盒的第二电极的表面上分布大气氧的结构,使得形成叠层 通过多个叠加的盒(4),在其附近的结构(3)之间布置有阴极 - 电解质 - 阳极单元(7)的膜(1)和分布在第二电极的表面上的大气氧的结构, 。 为了在各个壳体或类似物中将各个盒体相互支撑起来,本发明的叠层包括至少一个支撑盒,其壁是不可渗透的,并且填充有当被加热时膨胀到较大程度的材料。