Patent ID: 6780227
Filing Date: 2004-08-24
Classification: B01D,H01M,Y02E

Abstract:
A species transfer device designed for communication with a first and second stream of a fuel cell, the device comprising:(a) a housing assembly having a first stream inlet and outlet, and a second stream inlet and outlet; and (b) an exchange matrix housed within said housing assembly; wherein the exchange matrix has an average linear coefficient of thermal expansion at 25 to 800Â° C. of less than about 20Ã—10âˆ’7/Â° C. said housing assembly providing a path for said first stream of a fuel cell entering the first stream inlet, traveling through said exchange matrix, and exiting the first stream outlet, and providing a path for said second stream of a fuel cell entering the second stream inlet, traveling through said exchange matrix, and exiting the second stream outlet; said species transfer device capable of transferring a portion of a species from one of said first stream and said second stream to the other of said first stream and second stream, thereby conditioning said fuel cell streams.