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Title: Fuel cell assembly unit for promoting fluid service and electrical conductivity

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.

Inventors:
 [1]
  1. (Glenville, NY)
Issue Date:
Research Org.:
FORD MOTOR CO
OSTI Identifier:
872782
Patent Number(s):
6007933
Assignee:
Plug Power, L.L.C. (Latham, NY) OSTI
DOE Contract Number:  
AC02-94CE50389
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
fuel; cell; assembly; unit; promoting; fluid; service; electrical; conductivity; promoted; open-faced; flow; channel; formed; field; plate; extend; entry; exit; manifolds; resilient; gas; diffusion; layer; located; membrane; electrode; fluidly; serviced; restrained; entering; compressive; force; applied; particular; support; abuts; plurality; openings; extending; addition; clamping; pressure; maintained; interface; portion; preferably; spikeless; substantially; flat; path; conducting; current; position; compressive force; membrane electrode; fuel cell; substantially flat; force applied; gas diffusion; electrode assembly; flow field; flow channel; electrical conductivity; cell assembly; diffusion layer; field plate; openings extending; electrical path; conducting current; fluid service; /429/204/

Citation Formats

Jones, Daniel O. Fuel cell assembly unit for promoting fluid service and electrical conductivity. United States: N. p., 1999. Web.
Jones, Daniel O. Fuel cell assembly unit for promoting fluid service and electrical conductivity. United States.
Jones, Daniel O. Fri . "Fuel cell assembly unit for promoting fluid service and electrical conductivity". United States. https://www.osti.gov/servlets/purl/872782.
@article{osti_872782,
title = {Fuel cell assembly unit for promoting fluid service and electrical conductivity},
author = {Jones, Daniel O.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

Patent:

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