Method of forming densified edge seals for fuel cell components

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

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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

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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

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

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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
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

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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.

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

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                    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.

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@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}

}

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