Mitsubishi Denki Kabushiki Kaisha

The Kansai Electric Power Co., Inc.

Toshihide Tanaka

Masayuki Miyazaki

Tatsunori Okada

Hiroaki Urushibata

Mitsuie Matsumura

Hiroshi Tahara

Masahiro Mukai

Jitsuji Otsuki

Enju Nishiyama

Kazunao Sato

Sanyu Narita

Chiaki Hatoh

A internal reforming type molten carbonate fuel cell is provided in which the process or flow direction of the reforming reaction of a raw fuel gas in the reforming reaction section is countercurrent to the flow direction of the oxidant gas in the cell reaction section. Therefore, a temperature difference in the fuel cell can be suppressed.

Internal reforming type molten carbonate fuel cell

A fuel cell in which the sealed portions formed at the peripheral edges of gas flow passages of a gas separating plate are turned so that they have a U-shaped cross section in the direction of the lamination so as to provide for elasticity. A filling member is filled in the interior of the sealed portions. This gas separating plate is used to respectively form gas flow passages through which different gas fluids are caused to flow so that they are electrochemically reacted in a pair of electrode reacting portions disposed with an electrolyte layer being interposed therebetween. In consequence, the sealed portions provided at the peripheral edges of the gas flow passages deform in accordance with the creep caused in the electrode reacting portions. This enables a balanced, adequate bearing pressure to be kept applied to the electrode reacting portions and the sealed portions, thereby enabling the fuel cell to be operated in an excellent gas sealed state for a long time.

Fuel cell

A fuel cell device individually has an electrolyte layer which is connected, in an ion conductive manner, to the electrolyte layer of a fuel cell and a half cell formed by a single electrode and a gas chamber. An electrochemical circuit for the purpose of transferring electrolyte is provided by using the single electrode of the half cell, the electrolyte layer of the corresponding fuel cell and the half cell, and either of an oxidant gas side electrode or a fuel gas side electrode. With this circuit, quick and quantitative replenishing electrolyte can be performed.

Fuel cell device

Growing community of inventors

Amagasaki, Japan

Toshihide Tanaka