Polymer electrolyte fuel cell

Details Polymer electrolyte fuel cell Polymer electrolyte fuel cell

H - Electricity

01

M

H01M 8/02 (2006.01) H01M 2/08 (2006.01) H01M 4/94 (2006.01) H01M 8/00 (2006.01) H01M 8/10 (2006.01) H01M 8/24 (2006.01)

Patent

CA 2477358

A polymer electrolyte fuel cell is disclosed, comprising a MEA-gasket assembly including a MEA having a polymer electrolyte membrane, a pair of catalyst layers, and a pair of gas diffusion electrodes, and a pair of gaskets provided on peripheral portions of surfaces of both sides of the MEA with gaps between the gaskets and the gas diffusion electrodes and a pair of electrically conductive separators disposed to sandwich the MEA-gasket assembly and provided with groove-shaped cell reaction gas passages on inner surfaces thereof, each of the cell reaction gas passages running sequentially on a corresponding gasket of the pair of gaskets, a corresponding gap of the gaps, a corresponding gas diffusion electrode of the pair of gas diffusion electrodes, the corresponding gap, and the corresponding gasket, wherein each of the gaps is partially closed by a closing means.

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