公开(公告)号：US06500579B1

公开(公告)日：2002-12-31

申请号：US09631989

申请日：2000-08-03

申请人： Hideo Maeda ,  Hisatoshi Fukumoto ,  Kouji Hamano ,  Kenro Mituda

发明人： Hideo Maeda ,  Hisatoshi Fukumoto ,  Kouji Hamano ,  Kenro Mituda

IPC分类号： H01M200

CPC分类号： H01M8/0228 ,  H01M8/026 ,  H01M8/0263 ,  H01M8/0267 ,  H01M8/241 ,  H01M8/2465 ,  H01M8/247

摘要： A fuel cell including a unit cell and a separator panel alternatingly stacked on one another. The unit cell includes an electrolyte membrane sandwiched between a fuel electrode and an oxidant electrode. The separator panel includes parallel fuel flow paths extending from a fluid supply port to a fluid discharge port for supplying fluid fuel to the fuel electrode and parallel oxidant flow paths extending from a fluid supply port to a fluid discharge port for supplying oxidant fluid to the oxidant electrode. At least the oxidant flow paths include groups of parallel flow paths, which extend back and forth within divided regions of the main surface of the separator panel. The oxidant flow paths may include groups of parallel flow paths, positions along the groups of the parallel flow paths at equal distance from the respective fluid supply port being distributed substantially evenly over the main surface of the separator panel. Also, groups of parallel flow paths extend back and forth within a region defined by a projection of the divided regions through which the oxidant flow paths extend. The ridge width of ridges defined between grooves within the parallel flow path group is smaller than the ridge width of the ridges defined between the grooves of the parallel flow path group adjacent to each other.

摘要翻译： 一种燃料电池，包括彼此交替堆叠的单电池和隔板。 单位电池包括夹在燃料电极和氧化剂电极之间的电解质膜。 分离器板包括从流体供应端口延伸到流体排出口的平行燃料流动路径，用于向燃料电极提供流体燃料，以及从流体供应端口延伸到流体排放端口的平行氧化剂流动路径，用于向氧化剂供应氧化剂流体 电极。 至少氧化剂流动路径包括平行流动路径的组，其在分隔板的主表面的分割区域内前后延伸。 氧化剂流动路径可以包括平行流动路径的组，沿着平行流动路径的组的位置，距离相应的流体供应端口相等的距离基本均匀地分布在分隔板的主表面上。 而且，平行流动路径组在由氧化剂流动路径延伸穿过的分割区域的投影限定的区域内来回延伸。 在平行流路组内的槽之间限定的脊的脊宽度小于彼此相邻的平行流路组的槽之间限定的脊的脊宽度。