Gs Yuasa Corporation

Okuyama Ryoichi

Nomura Eiichi

Fujita Yukio

Takemitsu Takatomo

Ishimaru Fumiya

A direct methanol type fuel cell system provided with a tank for storing an antifreeze that is injected into at least said unit cell or a cell stack and held in place at the time of stand-by operation of the direct methanol type fuel cell system. At the time of starting operation an oxidant gas is supplied to the cathode side and the antifreeze is removed from the unit cell or the cell stack. After starting operation, the passage between the antifreeze tank and the unit cell or the cell stack is closed and an aqueous solution of methanol is supplied as liquid fuel from a fuel tank to the anode side.

Liquid fuel type fuel cell system and its operating method

A liquid fuel direct supply fuel cell system capable of being operated under optimal conditions. A plurality of cells each having an anode and a positive electrode disposed oppositely through an electrolytic film and being fed, respectively, with liquid fuel and oxidizing agent gas are connected in series as a power generating section (), which is then provided with a sensor section () for detecting the concentration of the liquid fuel in association with a temperature detected by a temperature detecting element thus producing a cell stack (), and a controller () controls high concentration fuel supply amount from a high concentration fuel tank () to a fuel tank () based on an output signal from the sensor section ().

Growing community of inventors

Takatsuki, Japan

Okuyama Ryoichi