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Title: Fuel cell separator with compressible sealing flanges

Abstract

A separator for separating adjacent fuel cells in a stack of such cells includes a flat, rectangular, gas-impermeable plate disposed between adjacent cells and having two opposite side margins thereof folded back over one side of the plate to form two first seal flanges and having the other side margins thereof folded back over the opposite side of the plate to form two second seal flanges, each of the seal flanges cooperating with the plate to define a channel in which is disposed a resiliently compressible stack of thin metal sheets. The two first seal flanges cooperate with the electrolyte matrix of one of the cells to form a gas-impermeable seal between an electrode of the one cell and one of two reactant gas manifolds. The second seal flanges cooperate with the electrolyte matrix of the other cell for forming a gas-impermeable seal between an electrode of the other cell and the other of the two reactant gas manifolds. The seal flanges cooperate with the associated compressible stacks of sheets for maintaining a spacing between the plate and the electrolyte matrices while accommodating variation of that spacing.

Inventors:
 [1]
  1. (Glastonbury, CT)
Issue Date:
Research Org.:
INTERNATIONAL FUEL CELLS CORP
OSTI Identifier:
865439
Patent Number(s):
4514475
Application Number:
06/595,012
Assignee:
United States of America as represented by United States (Washington, DC) OSTI
DOE Contract Number:  
AC01-79ET15440
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
fuel; cell; separator; compressible; sealing; flanges; separating; adjacent; cells; stack; flat; rectangular; gas-impermeable; plate; disposed; opposite; margins; folded; form; seal; cooperating; define; channel; resiliently; metal; sheets; cooperate; electrolyte; matrix; electrode; reactant; gas; manifolds; forming; associated; stacks; maintaining; spacing; matrices; accommodating; variation; gas manifolds; fuel cell; adjacent cells; cell separator; metal sheets; adjacent fuel; fuel cells; metal sheet; reactant gas; adjacent cell; electrolyte matrix; sealing flanges; plate disposed; sealing flange; separating adjacent; gas manifold; electrolyte matrices; /429/

Citation Formats

Mientek, Anthony P. Fuel cell separator with compressible sealing flanges. United States: N. p., 1985. Web.
Mientek, Anthony P. Fuel cell separator with compressible sealing flanges. United States.
Mientek, Anthony P. Tue . "Fuel cell separator with compressible sealing flanges". United States. https://www.osti.gov/servlets/purl/865439.
@article{osti_865439,
title = {Fuel cell separator with compressible sealing flanges},
author = {Mientek, Anthony P.},
abstractNote = {A separator for separating adjacent fuel cells in a stack of such cells includes a flat, rectangular, gas-impermeable plate disposed between adjacent cells and having two opposite side margins thereof folded back over one side of the plate to form two first seal flanges and having the other side margins thereof folded back over the opposite side of the plate to form two second seal flanges, each of the seal flanges cooperating with the plate to define a channel in which is disposed a resiliently compressible stack of thin metal sheets. The two first seal flanges cooperate with the electrolyte matrix of one of the cells to form a gas-impermeable seal between an electrode of the one cell and one of two reactant gas manifolds. The second seal flanges cooperate with the electrolyte matrix of the other cell for forming a gas-impermeable seal between an electrode of the other cell and the other of the two reactant gas manifolds. The seal flanges cooperate with the associated compressible stacks of sheets for maintaining a spacing between the plate and the electrolyte matrices while accommodating variation of that spacing.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {4}
}

Patent:

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