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Title: Fabrication of gas impervious edge seal for a bipolar gas distribution assembly for use in a fuel cell

Abstract

A bipolar gas reactant distribution assembly for use in a fuel cell is disclosed, the assembly having a solid edge seal to prevent leakage of gaseous reactants wherein a pair of porous plates are provided with peripheral slits generally parallel to, and spaced apart from two edges of the plate, the slit being filled with a solid, fusible, gas impervious edge sealing compound. The plates are assembled with opposite faces adjacent one another with a layer of a fusible sealant material therebetween the slits in the individual plates being approximately perpendicular to one another. The plates are bonded to each other by the simultaneous application of heat and pressure to cause a redistribution of the sealant into the pores of the adjacent plate surfaces and to cause the edge sealing compound to flow and impregnate the region of the plates adjacent the slits and comingle with the sealant layer material to form a continuous layer of sealant along the edges of the assembled plates.

Inventors:
 [1];  [2]
  1. West Orange, NJ
  2. Princeton, NJ
Publication Date:
Research Org.:
ENGELHARD CORP
OSTI Identifier:
865850
Patent Number(s):
US 4588661
Assignee:
Engelhard Corporation (Menlo Park, NJ)
DOE Contract Number:  
AC21-81MC24224
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
fabrication; gas; impervious; edge; seal; bipolar; distribution; assembly; fuel; cell; reactant; disclosed; solid; prevent; leakage; gaseous; reactants; pair; porous; plates; provided; peripheral; slits; parallel; spaced; apart; edges; plate; slit; filled; fusible; sealing; compound; assembled; opposite; adjacent; layer; sealant; material; therebetween; individual; approximately; perpendicular; bonded; simultaneous; application; heat; pressure; redistribution; pores; surfaces; flow; impregnate; region; comingle; form; continuous; sealant material; material therebetween; porous plates; fuel cell; prevent leakage; gas impervious; edge seal; gaseous reactants; gaseous reactant; spaced apart; continuous layer; gas distribution; simultaneous application; approximately perpendicular; layer material; plate surface; bipolar gas; distribution assembly; /429/29/427/

Citation Formats

Kaufman, Arthur, and Werth, John. Fabrication of gas impervious edge seal for a bipolar gas distribution assembly for use in a fuel cell. United States: N. p., 1986. Web.
Kaufman, Arthur, & Werth, John. Fabrication of gas impervious edge seal for a bipolar gas distribution assembly for use in a fuel cell. United States.
Kaufman, Arthur, and Werth, John. Wed . "Fabrication of gas impervious edge seal for a bipolar gas distribution assembly for use in a fuel cell". United States. https://www.osti.gov/servlets/purl/865850.
@article{osti_865850,
title = {Fabrication of gas impervious edge seal for a bipolar gas distribution assembly for use in a fuel cell},
author = {Kaufman, Arthur and Werth, John},
abstractNote = {A bipolar gas reactant distribution assembly for use in a fuel cell is disclosed, the assembly having a solid edge seal to prevent leakage of gaseous reactants wherein a pair of porous plates are provided with peripheral slits generally parallel to, and spaced apart from two edges of the plate, the slit being filled with a solid, fusible, gas impervious edge sealing compound. The plates are assembled with opposite faces adjacent one another with a layer of a fusible sealant material therebetween the slits in the individual plates being approximately perpendicular to one another. The plates are bonded to each other by the simultaneous application of heat and pressure to cause a redistribution of the sealant into the pores of the adjacent plate surfaces and to cause the edge sealing compound to flow and impregnate the region of the plates adjacent the slits and comingle with the sealant layer material to form a continuous layer of sealant along the edges of the assembled plates.},
doi = {},
url = {https://www.osti.gov/biblio/865850}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {1}
}

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