Polymeric membrane fuel cell comprising dual seal assembly

Details Polymeric membrane fuel cell comprising dual seal assembly Polymeric membrane fuel cell comprising dual seal assembly

H - Electricity

01

M

H01M 8/00 (2006.01) H01M 2/14 (2006.01) H01M 4/86 (2006.01) H01M 8/02 (2006.01)

Patent

CA 2345566

A fuel cell includes a membrane electrode assembly having a solid polymer electrolyte membrane, an anode side diffusion electrode and a cathode side diffusion electrode located at both sides of the solid polymer electrolyte membrane, and a pair of separators which holds the membrane electrode assembly. The fuel cell also includes a first seal and a second seal. The first seal is disposed between one of the separators and a periphery portion of whichever of the anode side diffusion electrode and the cathode side diffusion electrode has the larger surface area so as to surround whichever of the anode side diffusion electrode and the cathode side diffusion electrode has the smaller surface area. The second seal is disposed between the separators so as to surround whichever of the anode side diffusion electrode and the cathode side diffusion electrode has the larger surface area.

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