Fuel cell and fuel cell stack
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorTadashi Tsunoda
Life of this patent
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Abstract
A fuel cell includes a pair of separators and a plurality of electrolyte electrode assemblies between the separators. The electrolyte electrode assemblies has a small circular disk shape. Eight electrolyte electrode assemblies are arranged along an inner circle and eight electrolyte electrode assemblies are arranged along an outer circle concentric with a circular hole. Each of the separators includes a plurality of plates stacked together. A fuel gas channel for supplying a fuel gas to anodes of the electrolyte electrode assemblies, an oxygen-containing gas channel for supplying an oxygen-containing gas to cathodes of the electrolyte electrode assemblies are formed between the plates.
Claims9
A fuel cell comprising a pair of separators and electrolyte electrode assemblies interposed between said separators, said electrolyte electrode assemblies each including an anode, and a cathode, and an electrolyte interposed between said anode and cathode, wherein
- each of said separators includes a plurality of plates stacked together;
- a fuel gas channel for supplying a fuel gas to said anode, and an oxygen-containing gas channel for supplying an oxygen-containing gas to said cathode are formed between said plates;
- and
- at least one of said plates has protrusions for positioning said electrolyte electrode assemblies between said separators,
- wherein at least three of said protrusions are provided around each of said electrolyte electrode assemblies so that said electrolyte electrode assemblies are arranged along at least one virtual circle concentric with a central axis of said separators.
Dependencies are inferred from the claim text.