ELECTROCHEMICAL FUEL CELL HAVING AN UNDULATE MEMBRANE ELECTRODE ASSEMBLY
摘要
A PEM-type fuel cell is formed from layered undulate MEA structures (25) and separator strata (20) alternating with each other in the stack dimension so that each layered MEA structure is disposed between and attached to an associated pair of separator strata so as to form at least one discrete plenum on each side of each layered MEA structure through which plenum reactant gas may be circulated. Each layered MEA structure is formed from proton exchange membrane material (14) sandwiched between a pair of spaced-apart current collectors (22, 24) with electro-catalyst particles between the membrane material and each current collector so that the membrane material and electro-catalyst particles fill the space between the current collectors, forming together with the current collectors a layered MEA structure. Each separator stratum is attached to and provides an electrically conductive path between the current collectors of the layered MEA structures on either side of the separator stratum.