H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 8/02 (2006.01) C08L 83/04 (2006.01) H01M 2/08 (2006.01) H01M 8/24 (2006.01)
Patent
CA 2463882
A fuel cell stack assembly having a plurality of plates with grooves for accommodating gaskets to provide seals between individual fuel cell plates in the fuel cell stack assembly in order to prevent leakage of gases and liquids required for operation of the fuel cell stack assembly is presented. The grooves in each fuel cell plate in the fuel cell stack assembly comprise a circular or an elliptical profile and a unitary seal formed of a sealing material between each fuel cell plate in the fuel cell stack assembly having a profile corresponding to the profile of the grooves in each fuel cell plate. The sealing material contains polydiorganosiloxane, reinforcing filler, an oxide or hydroxide of an alkaline metal, an organohydrogensiloxane and a platinum type metal catalyst.
La présente invention concerne une amélioration dans un ensemble empilé de piles à combustible doté d'une pluralité de plaques à rainures servant à loger des joints statiques, de manière à engendrer des joints entre des plaques de piles à combustible dudit ensemble, en vue de prévenir une fuite de gaz et de liquides, lors du fonctionnement dudit ensemble. Cette amélioration porte sur des rainures dans chaque plaque de pile à combustible dudit ensemble avec un profil circulaire ou elliptique et un joint unitaire formé d'une matière étanche entre chaque plaque de pile à combustible dudit ensemble possédant un profil correspondant au profil des rainures dans chaque plaque de pile à combustible.
Frisch Lawrence
Herring Randall
Maxson Myron
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Dow Corning Corporation
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