WO2003019712A3 - Gasdiffusionselektrode mit einer porösen beschichtung und zugehöriges herstellungsverfahren - Google Patents

Gasdiffusionselektrode mit einer porösen beschichtung und zugehöriges herstellungsverfahren Download PDF

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Publication number
WO2003019712A3
WO2003019712A3 PCT/DE2002/002540 DE0202540W WO03019712A3 WO 2003019712 A3 WO2003019712 A3 WO 2003019712A3 DE 0202540 W DE0202540 W DE 0202540W WO 03019712 A3 WO03019712 A3 WO 03019712A3
Authority
WO
WIPO (PCT)
Prior art keywords
production method
gas diffusion
diffusion electrode
porous coating
corresponding production
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/DE2002/002540
Other languages
English (en)
French (fr)
Other versions
WO2003019712A2 (de
Inventor
Robert Fleck
Norbert Landgraf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of WO2003019712A2 publication Critical patent/WO2003019712A2/de
Publication of WO2003019712A3 publication Critical patent/WO2003019712A3/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/90—Selection of catalytic material
    • H01M4/9016—Oxides, hydroxides or oxygenated metallic salts
    • H01M4/9025—Oxides specially used in fuel cell operating at high temperature, e.g. SOFC
    • H01M4/9033—Complex oxides, optionally doped, of the type M1MeO3, M1 being an alkaline earth metal or a rare earth, Me being a metal, e.g. perovskites
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
    • H01M4/8882—Heat treatment, e.g. drying, baking
    • H01M4/8885—Sintering or firing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
    • H01M8/1213—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
    • H01M8/1213—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material
    • H01M8/1226—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material characterised by the supporting layer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M2004/8678—Inert electrodes with catalytic activity, e.g. for fuel cells characterised by the polarity
    • H01M2004/8689—Positive electrodes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Inert Electrodes (AREA)
  • Fuel Cell (AREA)

Abstract

Beim Stand der Technik werden insbesondere Kathoden von Hochtemperatur-Brennstoffzellen (SOFC) der Oberflächen mit gasdurchlässigen Schichten versehen. Durch das anschließende Aufbringen des Elektrolyten und Sintern wird bisher die Sauerstoffdiffusion wesentlich verschlechtert. Mit der Erfindung ist eine Elektrodenbeschichtung geschaffen, bei der die Porosität definiert eingestellt ist und nach Sinterung auf diesem Wert bestehen bleibt. Dies wird dadurch erreicht, dass bei der Herstellung ein Porenbildner und/oder ein Gefügestabilisierer verwendet wird.
PCT/DE2002/002540 2001-07-13 2002-07-11 Gasdiffusionselektrode mit einer porösen beschichtung und zugehöriges herstellungsverfahren Ceased WO2003019712A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10134129A DE10134129A1 (de) 2001-07-13 2001-07-13 Beschichtung für Diffusionselektroden und zugehöriges Herstellungsverfahren
DE10134129.6 2001-07-13

Publications (2)

Publication Number Publication Date
WO2003019712A2 WO2003019712A2 (de) 2003-03-06
WO2003019712A3 true WO2003019712A3 (de) 2003-05-30

Family

ID=7691698

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/002540 Ceased WO2003019712A2 (de) 2001-07-13 2002-07-11 Gasdiffusionselektrode mit einer porösen beschichtung und zugehöriges herstellungsverfahren

Country Status (2)

Country Link
DE (1) DE10134129A1 (de)
WO (1) WO2003019712A2 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598467A (en) * 1984-10-05 1986-07-08 Westinghouse Electric Corp. Protective interlayer for high temperature solid electrolyte electrochemical cells
US5516597A (en) * 1994-11-07 1996-05-14 Westinghouse Electric Corporation Protective interlayer for high temperature solid electrolyte electrochemical cells
US5629103A (en) * 1993-04-30 1997-05-13 Siemens Aktiengesellschaft High-temperature fuel cell with improved solid-electrolyte/electrode interface and method of producing the interface
US6139985A (en) * 1998-07-24 2000-10-31 Siemens Westinghouse Power Corporation Electrode electrolyte interlayers containing cerium oxide for electrochemical fuel cells

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19626342A1 (de) * 1996-07-01 1998-01-08 Forschungszentrum Juelich Gmbh Elektrodenzwischenschicht bei Brennstoffzellen
DE19730003B4 (de) * 1997-07-12 2007-06-21 Mtu Cfc Solutions Gmbh Elektrisch leitfähiges Hochtemperaturbrennstoffzellenbauteil und Verwendung eines Metall-Keramik-Verbundwerkstoffs zur Herstellung eines Hochtemperaturbrennstoffzellenbauteils

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598467A (en) * 1984-10-05 1986-07-08 Westinghouse Electric Corp. Protective interlayer for high temperature solid electrolyte electrochemical cells
US5629103A (en) * 1993-04-30 1997-05-13 Siemens Aktiengesellschaft High-temperature fuel cell with improved solid-electrolyte/electrode interface and method of producing the interface
US5516597A (en) * 1994-11-07 1996-05-14 Westinghouse Electric Corporation Protective interlayer for high temperature solid electrolyte electrochemical cells
US6139985A (en) * 1998-07-24 2000-10-31 Siemens Westinghouse Power Corporation Electrode electrolyte interlayers containing cerium oxide for electrochemical fuel cells

Also Published As

Publication number Publication date
WO2003019712A2 (de) 2003-03-06
DE10134129A1 (de) 2003-02-13

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