Dry compliant seal for phosphoric acid fuel cell
Abstract
A dry compliant overlapping seal for a phosphoric acid fuel cell preformed f non-compliant Teflon to make an anode seal frame that encircles an anode assembly, a cathode seal frame that encircles a cathode assembly and a compliant seal frame made of expanded Teflon, generally encircling a matrix assembly. Each frame has a thickness selected to accommodate various tolerances of the fuel cell elements and are either bonded to one of the other frames or to a bipolar or end plate. One of the non-compliant frames is wider than the other frames forming an overlap of the matrix over the wider seal frame, which cooperates with electrolyte permeating the matrix to form a wet seal within the fuel cell that prevents process gases from intermixing at the periphery of the fuel cell and a dry seal surrounding the cell to keep electrolyte from the periphery thereof. The frames may be made in one piece, in L-shaped portions or in strips and have an outer perimeter which registers with the outer perimeter of bipolar or end plates to form surfaces upon which flanges of pan shaped, gas manifolds can be sealed.
- Inventors:
-
- (South Greensburg, PA)
- N. Huntingdon Township, Westmoreland County, PA
- Issue Date:
- Research Org.:
- Westinghouse Electric Corporation
- OSTI Identifier:
- 867650
- Patent Number(s):
- 4978590
- Assignee:
- United States of America as represented by Department of Energy (Washington, DC)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- DOE Contract Number:
- NASA-DEN3-290
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- dry; compliant; seal; phosphoric; acid; fuel; cell; overlapping; preformed; non-compliant; teflon; anode; frame; encircles; assembly; cathode; expanded; encircling; matrix; thickness; selected; accommodate; various; tolerances; elements; bonded; frames; bipolar; plate; wider; forming; overlap; cooperates; electrolyte; permeating; form; wet; prevents; process; gases; intermixing; periphery; surrounding; piece; l-shaped; portions; strips; outer; perimeter; registers; plates; surfaces; flanges; pan; shaped; gas; manifolds; sealed; gas manifolds; matrix assembly; fuel cell; anode assembly; seal frame; process gas; phosphoric acid; outer perimeter; acid fuel; wet seal; cathode assembly; compliant seal; gas manifold; shaped portion; dry compliant; /429/
Citation Formats
Granata, Jr., Samuel J., and Woodle, Boyd M. Dry compliant seal for phosphoric acid fuel cell. United States: N. p., 1990.
Web.
Granata, Jr., Samuel J., & Woodle, Boyd M. Dry compliant seal for phosphoric acid fuel cell. United States.
Granata, Jr., Samuel J., and Woodle, Boyd M. Mon .
"Dry compliant seal for phosphoric acid fuel cell". United States. https://www.osti.gov/servlets/purl/867650.
@article{osti_867650,
title = {Dry compliant seal for phosphoric acid fuel cell},
author = {Granata, Jr., Samuel J. and Woodle, Boyd M},
abstractNote = {A dry compliant overlapping seal for a phosphoric acid fuel cell preformed f non-compliant Teflon to make an anode seal frame that encircles an anode assembly, a cathode seal frame that encircles a cathode assembly and a compliant seal frame made of expanded Teflon, generally encircling a matrix assembly. Each frame has a thickness selected to accommodate various tolerances of the fuel cell elements and are either bonded to one of the other frames or to a bipolar or end plate. One of the non-compliant frames is wider than the other frames forming an overlap of the matrix over the wider seal frame, which cooperates with electrolyte permeating the matrix to form a wet seal within the fuel cell that prevents process gases from intermixing at the periphery of the fuel cell and a dry seal surrounding the cell to keep electrolyte from the periphery thereof. The frames may be made in one piece, in L-shaped portions or in strips and have an outer perimeter which registers with the outer perimeter of bipolar or end plates to form surfaces upon which flanges of pan shaped, gas manifolds can be sealed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 1990},
month = {Mon Jan 01 00:00:00 EST 1990}
}