Method of forming densified edge seals for fuel cell components

DeCasperis, Anthony J; Roethlein, Richard J; Breault, Richard D

Title: Method of forming densified edge seals for fuel cell components

Full Record
Other Related Research

Abstract

A porous fuel cell component, such as an electrode substrate, has a densified edge which forms an improved gas seal during operation when soaked with electrolyte. The edges are made from the same composition as the rest of the component and are made by compressing an increased thickness of this material along the edges during the fabrication process.

Inventors:

DeCasperis, Anthony J ^[1]; Roethlein, Richard J ^[2]; Breault, Richard D ^[3]

South Windsor, CT
Stafford Springs, CT
Coventry, CT

Issue Date:: 1981-01-01

Research Org.:: UNITED TECHNOLOGIES CORP

OSTI Identifier:: 863891

Patent Number(s):: 4269642

Assignee:: United Technologies Corporation (Hartford, CT)

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 Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Show more

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
H01M8/0271 - Sealing or supporting means around electrodes, matrices or membranes
H01M4/861 - {with a gradient in the porosity}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/24777 - Edge feature
Y10T156/109 - Embedding of laminae within face of additional laminae

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
H01M8/0234 - Carbonaceous material
H01M4/96 - Carbon-based electrodes

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
Y02E60/50 - Fuel cells

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/30 - Self-sustaining carbon mass or layer with impregnant or other layer

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
H01M4/8636 - {with a gradient in another property than porosity

Show less

DOE Contract Number:: AC03-77ET11302

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; forming; densified; edge; seals; fuel; cell; components; porous; component; electrode; substrate; forms; improved; gas; seal; operation; soaked; electrolyte; edges; composition; compressing; increased; thickness; material; fabrication; process; cell component; electrode substrate; fuel cell; edge seal; cell components; fabrication process; gas seal; edge seals; improved gas; densified edge; porous fuel; /156/264/428/429/

Citation Formats


                    DeCasperis, Anthony J, Roethlein, Richard J, and Breault, Richard D. Method of forming densified edge seals for fuel cell components.  United States: N. p., 1981. 
        Web.

Copy to clipboard


                    DeCasperis, Anthony J, Roethlein, Richard J, & Breault, Richard D. Method of forming densified edge seals for fuel cell components.  United States.

Copy to clipboard


                    DeCasperis, Anthony J, Roethlein, Richard J, and Breault, Richard D. Thu .  
        "Method of forming densified edge seals for fuel cell components".  United States.  https://www.osti.gov/servlets/purl/863891.

Copy to clipboard


                    
@article{osti_863891,

  title        = {Method of forming densified edge seals for fuel cell components},

  author       = {DeCasperis, Anthony J and Roethlein, Richard J and Breault, Richard D},

  abstractNote = {A porous fuel cell component, such as an electrode substrate, has a densified edge which forms an improved gas seal during operation when soaked with electrolyte. The edges are made from the same composition as the rest of the component and are made by compressing an increased thickness of this material along the edges during the fabrication process.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1981},

  month        = {1}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Densified edge seals for fuel cell components

Patent DeCasperis, Anthony J [South Windsor, CT]; Roethlein, Richard J [Stafford Springs, CT]; Breault, Richard D [Coventry, CT]

A porous fuel cell component, such as an electrode substrate, has a densified edge which forms an improved gas seal during operation when soaked with electrolyte. The edges are made from the same composition as the rest of the component and are made by compressing an increased thickness of this material along the edges during the fabrication process.
Full Text Available
Fuel cell cooler assembly and edge seal means therefor

Patent Breault, Richard D [Coventry, CT]; Roethlein, Richard J [Stafford Springs, CT]; Congdon, Joseph V [Glastonbury, CT]

A cooler assembly for a stack of fuel cells comprises a fibrous, porous coolant tube holder sandwiched between and bonded to at least one of a pair of gas impervious graphite plates. The tubes are disposed in channels which pass through the holder. The channels are as deep as the holder thickness, which is substantially the same as the outer diameter of the tubes. Gas seals along the edges of the holder parallel to the direction of the channels are gas impervious graphite strips.
Full Text Available
Hot compression process for making edge seals for fuel cells

Patent Dunyak, Thomas J [Blacksburg, VA]; Granata, Jr., Samuel J. (South Greensburg, PA)

A hot compression process for forming integral edge seals in anode and cade assemblies wherein the assemblies are made to a nominal size larger than a finished size, beads of AFLAS are applied to a band adjacent the peripheral margins on both sides of the assemblies, the assemblies are placed in a hot press and compressed for about five minutes with a force sufficient to permeate the peripheral margins with the AFLAS, cooled and cut to finished size.
Full Text Available
Integral edge seals for phosphoric acid fuel cells

Patent Granata, Jr., Samuel J. (South Greensburg, PA); Woodle, Boyd M [North Huntingdon Township, Westmoreland County, PA]; Dunyak, Thomas J [Blacksburg, VA]

A phosphoric acid fuel cell having integral edge seals formed by an elastomer permeating an outer peripheral band contiguous with the outer peripheral edges of the cathode and anode assemblies and the matrix to form an integral edge seal which is reliable, easy to manufacture and has creep characteristics similar to the anode, cathode and matrix assemblies inboard of the seals to assure good electrical contact throughout the life of the fuel cell.
Full Text Available
Fabrication of gas impervious edge seal for a bipolar gas distribution assembly for use in a fuel cell

Patent Kaufman, Arthur [West Orange, NJ]; Werth, John [Princeton, NJ]

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 eachmore » « less
Full Text Available

Similar Records