| 摘要 |
The fuel cell system of the present invention has: a fuel cell including an electromotive unit comprising a fuel electrode, an oxidant electrode, and an electrolyte sandwiched by these electrodes; a fuel supply unit for supplying a fuel to the fuel electrode; and an oxidant supply unit for supplying an oxidant to the oxidant electrode. A product reduction mechanism unit is provided to reduce a fuel oxidation product produced at the fuel electrode when power is generated by the fuel cell. Based on this, decline in energy density due to the fuel and the fuel oxidation product and by-product can be prevented, without having a mechanism to discharge the fuel and the fuel oxidation product and by-product to the outside of the fuel cell.
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