Fuel cell module

摘要

In a fuel cell stack constituting a fuel cell module, electrolyte/electrode assemblies and separators are alternately laminated. An electrolyte/electrode assembly is arranged on one end of the fuel cell stack in the lamination direction, while a separator is arranged on the other end of the fuel cell stack in the lamination direction. A terminal separator is arranged adjacent to the electrolyte/electrode assembly, while a load relaxation member is arranged adjacent to the separator. The terminal separator controls the supply of a fuel gas to a fuel gas channel, and the load relaxation member is configured of a laminate of a plurality of flat metal plates.

主权项

1. A fuel cell module comprising a fuel cell stack formed by stacking electrolyte electrode assemblies and separators alternately in a stacking direction, the electrolyte electrode assemblies each including an anode, a cathode, and an electrolyte interposed between the anode and the cathode, a fuel gas channel for supplying a fuel gas along an electrode surface of the anode being formed on one surface of each of the separators, an oxygen-containing gas channel for supplying an oxygen-containing gas along an electrode surface of the cathode being formed on the other surface of each of the separators, and a fuel gas inlet for supplying the fuel gas into the fuel gas channel being formed in each of the separators;
an end separator is provided at the one end in the stacking direction, adjacent to the electrolyte electrode assembly, wherein the end separator has substantially a same shape and configuration as the separators alternately stacked with the electrolyte electrode assembly in the stacking direction except that the fuel gas inlet is not formed in the end separator in order to limit supply of the fuel gas to the fuel gas channel, and the end separator includes the oxygen-containing gas channel to allow supply of the oxygen-containing gas; and a load absorption member having a shape substantially similar to that of the electrolyte electrode assembly and overlapping with the electrolyte electrode assembly in the stacking direction is provided at the other end in the stacking direction, directly adjacent to a final separator at the other end of the fuel cell stack.