Patent ID: 7544432
Filing Date: 2009-06-09
Classification: H01M,Y02E

Abstract:
1. A fuel cell comprising a plurality of electrolyte electrode assemblies and a pair of separators sandwiching said electrolyte electrode assemblies, said electrolyte electrode assemblies each including an anode, a cathode, and an electrolyte interposed between said anode and said cathode, said separators each consisting of a single plate, wherein each of said separators in said pair of separators has a plurality of sandwiching portions, one of the plurality of electrolyte electrode assemblies being stacked on each of the plurality of sandwiching portions; said each of said separators has a fuel gas supply unit at a center thereof for letting a fuel gas prior to consumption flow therethrough in a stacking direction; first protrusions are provided on one surface of each sandwiching portion of said plurality of sandwiching portions, and said first protrusions form a fuel gas flow field for supplying a fuel gas along an electrode surface of an anode provided in the plurality of electrolyte electrode assemblies; second protrusions are provided on the other surface of each sandwiching portion of said plurality of sandwiching portions, and said second protrusions form an oxygen-containing gas flow field for supplying an oxygen-containing gas along an electrode surface of a cathode provided in the plurality of electrolyte electrode assemblies; and a channel member forming a plurality of fuel gas supply channels, each fuel gas supply channel connecting said fuel gas supply unit to each fuel gas flow field provided on each sandwiching portion through a fuel gas inlet that allows said fuel gas to flow into the fuel gas flow field, is provided on one surface of said each of said separators.