| 摘要 |
A fuel cell which discharges a small amount of a hydrogen gas, hardly causes a problem of waste gas treatment and gas release, and can perform power generation stably, continuously and effectively, and a power generating method using the same are provided. In a fuel cell comprising one or a plurality of unit cells UC formed of a sheet-like solid polymer electrolyte (1), its cathode-side electrode plate (2), an anode-side electrode plate (3), an oxygen-containing gas supply unit for supplying an oxygen-containing gas to the cathode-side electrode plate (2), and a hydrogen gas flow path unit for supplying a hydrogen gas to the anode-side electrode plate (3), regarding the unit cell UC which is to be a final stage of hydrogen gas supply, a flow path sectional area of the hydrogen gas flow path unit is not more than 1% of an area of the anode-side electrode plate (3) and, at the same time, a discharge control mechanism (10) for discharging a gas at 0.02 to 4% by volume relative to a hydrogen gas supplied to the unit cell UC is provided at an outlet of the hydrogen gas flow path unit. |
