A control device of a fuel cell system controls a temperature adjusting device in a manner that vapor in the oxygen-containing off-gas discharged from a fuel cell stack is saturated.

A buffered fuel cell able to convert fuel such as hydrogen into electricity and concurrently store generated electric charge electrochemically in a low-impedance electrical buffer capable of delivering high currents to a variety of electrical loads without...

An operation method of a polymer electrolyte fuel cell system including an anode (3) supplied with a fuel gas containing hydrogen, a cathode (4) supplied with an oxidizing gas containing oxygen, and a polymer electrolyte membrane (5) sandwiched between the...

Disclosed is a humidifier for a fuel cell having an enhanced humidifying performance and thus being able to prevent an instantaneous decrease of the output of a car which might occur at the time of high-speed driving. The humidifier comprises a membrane ho...

The humidification cell of a fuel cell device comprises a first outer plate (9a) and a second outer plate (9b). A gas chamber (21), a humidification water chamber (31) and a water-permeable membrane (5) separating the two chambers are arranged between the ...

A fuel cell system (10) provided with a fuel cell module (12), a water supply device (14) for supplying water to the fuel cell module (12), a water container (16) for supplying water to the water supply device (14), and a condenser (18) for condensing wate...

In a gas humidifier used for humidifying fuel in a molten carbonate fuel cell (MCFC), a small-size gas humidifier is achieved by carrying out a steam-generating process and a gas humidifying process by the use of the steam by using a single unit. In order ...