Fuel cell stack structure

Details Fuel cell stack structure Fuel cell stack structure

H - Electricity

01

M

H01M 8/24 (2006.01) H01M 8/04 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2428959

The invention relates to a fuel cell stack structure (23) capable of suppressing a drop in voltage resulting from flooding ar contamination at an end in a direction in which cells (10) are laminated, particularly in a cell (10) at a gas outlet/inlet end. In this fuel cell stack structure (23), a layer (31) which is irrelevant to power generation and in which a gas flow channel (36) is formed is provided at least at a gas outlet/inlet end of a laminated-cell body of a fuel cell (10) such as a solid- polyelectrolyte fuel cell. The layer (31) is constructed of a dummy cell (31) having a gas flow channel but no MEA. In addition, according to this fuel cell stack structure (23), both a fuel gas flow channel (36a) and an oxidative gas flow channel (36b) are formed in one face of the layer (31) which is irrelevant to power generation and in which the gas flow channels (36) are formed.

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