| 摘要 |
A secondary battery type fuel cell system is provided with: a fuel cell unit which generates oxidation gas during power generation and has a fuel electrode, an oxidant electrode, and an electrolyte sandwiched between the fuel electrode and the oxidant electrode; and a fuel generation unit which generates fuel in the form of reducing gas by means of the chemical reaction with the oxidation gas and which can generate and regenerate the oxidation gas by means of the reverse reaction of the aforementioned chemical reaction. In a closed or hermetically-sealed space containing the fuel electrode and the fuel generation unit, the oxidation gas or the reducing gas is forcibly circulated between the fuel cell unit and the fuel generation unit, and the flow direction of the gas flowing along the surface of the fuel electrode is set to be the same during the power generation operation and the charging operation. |
