Variable catalyst loading based on flow field geometry

Details Variable catalyst loading based on flow field geometry Variable catalyst loading based on flow field geometry

2006-10-16

2010-11-09

Maples, John S (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Fuel cell, subcombination thereof, or method of making or...

Means for distributing, storing, or preventing fluid movement

C429S523000

Reexamination Certificate

active

07829239

ABSTRACT:
A fuel cell including a membrane electrode assembly composed of a ionically conductive member sandwiched between a pair of electrodes. At least one of the electrodes including a catalyst loading characterized by catalytic activity that varies in proportion to the catalyst loading. Moreover, the fuel cell includes a flow path for supplying gaseous reactants to the electrodes and the catalyst loading is varied according to the flow path geometry.

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