Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Patent
1998-04-27
1999-12-28
Wong, Edna
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
429 32, 429 36, 429 37, 429 39, 429 44, 204282, 204283, 204284, H01M 214, H01M 810, H01M 208, C25B 1300, C25B 1103
Patent
active
060079339
ABSTRACT:
Fluid service and/or electrical conductivity for a fuel cell assembly is promoted. Open-faced flow channel(s) are formed in a flow field plate face, and extend in the flow field plate face between entry and exit fluid manifolds. A resilient gas diffusion layer is located between the flow field plate face and a membrane electrode assembly, fluidly serviced with the open-faced flow channel(s). The resilient gas diffusion layer is restrained against entering the open-faced flow channel(s) under a compressive force applied to the fuel cell assembly. In particular, a first side of a support member abuts the flow field plate face, and a second side of the support member abuts the resilient gas diffusion layer. The support member is formed with a plurality of openings extending between the first and second sides of the support member. In addition, a clamping pressure is maintained for an interface between the resilient gas diffusion layer and a portion of the membrane electrode assembly. Preferably, the support member is spikeless and/or substantially flat. Further, the support member is formed with an electrical path for conducting current between the resilient gas diffusion layer and position(s) on the flow field plate face.
REFERENCES:
patent: 4091176 (1978-05-01), Alfenaar
patent: 4345986 (1982-08-01), Korach
patent: 4410410 (1983-10-01), Deborski
patent: 4476002 (1984-10-01), Howard et al.
patent: 4602426 (1986-07-01), Kampe et al.
patent: 4636291 (1987-01-01), Divisek et al.
patent: 5482792 (1996-01-01), Faita et al.
patent: 5558948 (1996-09-01), Doyon
patent: 5565072 (1996-10-01), Faita et al.
patent: 5707755 (1998-01-01), Grot
patent: 5709961 (1998-01-01), Cisar et al.
Plug Power L.L.C.
Wong Edna
LandOfFree
Fuel cell assembly unit for promoting fluid service and electric does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fuel cell assembly unit for promoting fluid service and electric, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel cell assembly unit for promoting fluid service and electric will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2381073