| 摘要 |
A power supply device capable of providing a high output with a good starting performance from a very low humidity environment. A humidifying type fuel cell unit using as an electrolyte a humidifying type proton conductor having a proton conduction function in a humidified condition, and a low-humidifying type fuel cell unit using as an electrolyte a low-humidifying type proton conductor delivering a proton conduction function in a humidified condition lower than the above humidified condition are hybridized. At an initial start, at least the low-humidifying type fuel cell unit is operated, and then the humidifying type fuel cell unit only is operated. At an initial start, water content produced by the low-humidifying type fuel cell unit is supplied to the electrolyte of the humidifying type fuel cell unit. |
