Graphite laminate fuel cell plate

Details Graphite laminate fuel cell plate Graphite laminate fuel cell plate

B - Operations, Transporting

32

B

B32B 15/00 (2006.01) B29C 43/00 (2006.01) B29C 43/02 (2006.01)

Patent

CA 2481043

A laminated fuel cell plate (10) has a sheet metal layer (14) compression molded between two layers of expanded graphite (12, 16). The sheet metal layer provides resilient support for making thinner plates. The sheet metal layer also functions as a permeability barrier, which allows the conductivity of the expanded graphite layers to be enhanced. Features are molded into the graphite layers for such purposes as alignment, sealing, and flow control.

La présente invention concerne une plaque de pile à combustible stratifiée (10) qui présente une couche en tôle (14) moulée par compression entre deux couches de graphite expansé (12, 16). La couche en tôle offre un support élastique permettant de produire des plaques plus minces et sert également de barrière de perméabilité permettant d'améliorer la conductivité des couches de graphite expansé. Les caractéristiques sont moulées dans les couches de graphite afin de permettre par exemple d'assurer un alignement, une étanchéité et une commande d'écoulement.

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