Fuel cell stack
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United States of America Patent
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Jun 14, 2016
Grant Date -
Jul 18, 2013
app pub date -
Oct 26, 2011
filing date -
Dec 15, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A fuel cell stack includes a fuel cell. A separator of the fuel cell includes a sandwiching section for sandwiching an electrolyte electrode assembly, a bridge section, and a reactant gas supply section. A fuel gas channel and an oxygen-containing gas channel are formed in the sandwiching section. A fuel gas supply channel, a fuel gas return channel, and an oxygen-containing gas supply channel are formed in the bridge section. A fuel gas supply passage, a fuel gas discharge passage and an oxygen-containing gas supply passage are formed in the reactant gas supply section. The bridge section is provided integrally with the reactant gas supply section, and surrounds the entire outer circumference of the sandwiching section.
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