Oxygen getters for anode protection in a solid-oxide fuel cell stack

Title: Oxygen getters for anode protection in a solid-oxide fuel cell stack

Abstract

In a fuel cell assembly, nickel-based anodes are readily oxidized when exposed to oxygen as may happen through atmospheric invasion of the assembly during cool-down following shutdown of the assembly. Repeated anode oxidation and reduction can be destructive of the anodes, leading to cracking and failure. To prevent such oxygen migration, oxygen getter devices containing oxygen-gettering material such as metallic nickel are provided in the fuel passageways leading to and from the anodes. Oxidation of the oxygen-gettering material is readily reversed through reduction by fuel when the assembly is restarted.

Inventors:: England, Diane M.; Haltiner, Jr., Karl J.; Kelly, Sean M.; Faville, Michael T.

Issue Date:: 2008-10-14

Research Org.:: Delphi Technologies, Inc., Troy, MI (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1531568

Patent Number(s):: 7435490

Application Number:: 11/593,672

Assignee:: Delphi Technologies, Inc. (Troy, MI)

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 Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

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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
H01M8/0256 - Vias, i.e. connectors passing through the separator material
H01M4/8605 - {Porous electrodes}
H01M4/9066 - {of metal-ceramic composites or mixtures, e.g. cermets}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
Y02T90/40 - Application of hydrogen technology to transportation

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

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
H01M4/9016 - {Oxides, hydroxides or oxygenated metallic salts}
H01M8/0232 - Metals or alloys
H01M2250/20 - Fuel cells in motive systems, e.g. vehicle, ship, plane

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DOE Contract Number:: FC26-02NT41246

Resource Type:: Patent

Resource Relation:: Patent File Date: 2006-11-07

Country of Publication:: United States

Language:: English

Citation Formats


                    England, Diane M., Haltiner, Jr., Karl J., Kelly, Sean M., and Faville, Michael T. Oxygen getters for anode protection in a solid-oxide fuel cell stack.  United States: N. p., 2008. 
        Web.

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                    England, Diane M., Haltiner, Jr., Karl J., Kelly, Sean M., & Faville, Michael T. Oxygen getters for anode protection in a solid-oxide fuel cell stack.  United States.

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                    England, Diane M., Haltiner, Jr., Karl J., Kelly, Sean M., and Faville, Michael T. Tue .  
        "Oxygen getters for anode protection in a solid-oxide fuel cell stack".  United States.  https://www.osti.gov/servlets/purl/1531568.

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@article{osti_1531568,

  title        = {Oxygen getters for anode protection in a solid-oxide fuel cell stack},

  author       = {England, Diane M. and Haltiner, Jr., Karl J. and Kelly, Sean M. and Faville, Michael T.},

  abstractNote = {In a fuel cell assembly, nickel-based anodes are readily oxidized when exposed to oxygen as may happen through atmospheric invasion of the assembly during cool-down following shutdown of the assembly. Repeated anode oxidation and reduction can be destructive of the anodes, leading to cracking and failure. To prevent such oxygen migration, oxygen getter devices containing oxygen-gettering material such as metallic nickel are provided in the fuel passageways leading to and from the anodes. Oxidation of the oxygen-gettering material is readily reversed through reduction by fuel when the assembly is restarted.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2008},

  month        = {10}

}

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Works referenced in this record:

Heat flux meter
patent, August 1986

Wynnyckyj, John R.; Rhodes, Edward
US Patent Document 4,607,961
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=4607961

Fuel cell interconnect device
patent, August 1999

Badwal, Sukhvinder S.; Foger, Karl; Zheng, Xiao G.
US Patent Document 5,942,349
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=5942349

Works referencing / citing this record:

Fuel cell system with interconnect
patent, December 2016

Liu, Zhien; Goettler, Richard W.
US Patent Document 9,525,181
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=9525181

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Title: Oxygen getters for anode protection in a solid-oxide fuel cell stack

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