Flow field plate assembly for an electrochemical fuel cell

Details Flow field plate assembly for an electrochemical fuel cell Flow field plate assembly for an electrochemical fuel cell

H - Electricity

01

M

H01M 4/64 (2006.01) H01M 8/02 (2006.01)

Patent

CA 2425226

A flow field plate assembly for an electrochemical fuel cell comprises two flow field plates, each of which has channels formed on an inner surface of the plate. The plates are alignable with and engage each other such that their cooperating inner surfaces form at least one inner coolant fluid channel. The coolant channel has an essentially constant cross- sectional perimeter along its length, which is defined by the perimeters of the channels of the two plates and their difference in width at the cooperating plate surfaces. Additionally, a flow field plate assembly, which comprises a corrugated flow field plate and a staggered flow field plate, is structurally stronger under compressive load during the fuel cell operation.

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