Mitsubishi Materials Corporation

The Kansai Electric Power Co., Inc.

Tha Kansai Electrical Power Co., Inc.

Takafumi Kotani

Naoya Murakami

Koji Hoshino

Norikazu Komada

Takashi Yamada

Takashi Miyazawa

Taner Akbay

Masaharu Yamada

The present invention is a solid oxide fuel cell configuration which equalizes gas volume distributed into each power generation cell to stabilize fuel cell output and improve the output efficiency. In the present invention, a flat plate laminating type solid oxide fuel cell has a reactant gas supply manifold extending through a fuel cell stack in the laminating direction, for supplying reactant gas to each of power generation cells through gas passages of separators which are communicated with the manifold. The manifold and the passages of the separators are in communication with each other through a gas-flow throttle mechanisms.

Solid oxide fuel cell

Gas discharge ports are provided in almost the entire area of a layer surface of a separator, and a gas for reaction is discharged like a shower from the separator toward a power generation cell. The separator is constructed by layering plate-shaped members containing iron-base alloy, nickel-base alloy, or chrome-base alloy as the base material. Silver, silver alloy, copper, or copper alloy is plated on both sides or one side of the base material of the plate-shaped member. The construction above can increase durability of a separator and enables the separator and a solid oxide fuel cell to be stably used for a long period.

Separator for fuel cell, method for producing separator, and solid oxide fuel cell

Growing community of inventors

Naka, Japan

Takafumi Kotani