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WO2003028131A3 - Brennstoffzelle und brennstoffzellenstapel, sowie verfahren zum betreiben derselben - Google Patents

Brennstoffzelle und brennstoffzellenstapel, sowie verfahren zum betreiben derselben Download PDF

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Publication number
WO2003028131A3
WO2003028131A3 PCT/DE2002/002584 DE0202584W WO03028131A3 WO 2003028131 A3 WO2003028131 A3 WO 2003028131A3 DE 0202584 W DE0202584 W DE 0202584W WO 03028131 A3 WO03028131 A3 WO 03028131A3
Authority
WO
WIPO (PCT)
Prior art keywords
fuel cell
cathode
same
advantageously
operating method
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/DE2002/002584
Other languages
English (en)
French (fr)
Other versions
WO2003028131A2 (de
Inventor
Klaus Wippermann
Boris Cudina
Jiri Divisek
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.)
Forschungszentrum Juelich GmbH
Original Assignee
Forschungszentrum Juelich GmbH
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 Forschungszentrum Juelich GmbH filed Critical Forschungszentrum Juelich GmbH
Publication of WO2003028131A2 publication Critical patent/WO2003028131A2/de
Anticipated expiration legal-status Critical
Publication of WO2003028131A3 publication Critical patent/WO2003028131A3/de
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
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
    • H01M8/04238—Depolarisation
    • 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
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/043—Processes for controlling fuel cells or fuel cell systems applied during specific periods
    • 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
    • H01M8/1009—Fuel cells with solid electrolytes with one of the reactants being liquid, solid or liquid-charged
    • H01M8/1011—Direct alcohol fuel cells [DAFC], e.g. direct methanol fuel cells [DMFC]
    • 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

Landscapes

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

Abstract

Die Erfindung betrifft eine Brennstoffzelle, bei der die mangelnde katalytische Wirkung der Elektrokatalysatoren, insbesondere der Kathode, vorteilhaft verringert wird, und so eine erhöhte Leistung der Brennstoffzelle erzielt wird. Dazu wird der Kathode der Brennstoffzelle während des Betriebs ein positiver Spannungs- bzw. Strompuls aufgegeben. Dies führt vorteilhaft zu einem sofort eintretenden Reinigungseffekt, der den Katalysator der Kathode von deaktivierenden Adsorbaten, wie beispielsweise CO oder Methanol befreit. Vorteilhaft wird dieser Strom- bzw. Spannungspuls mehrfach, insbesondere periodisch auf die Kathode aufgegeben. Trotz des dazu notwendigen Stromverbrauchs wird durch dieses Verfahren insgesamt eine Leistungsverbesserung der Brennstoffzelle erzielt.
PCT/DE2002/002584 2001-08-29 2002-07-13 Brennstoffzelle und brennstoffzellenstapel, sowie verfahren zum betreiben derselben Ceased WO2003028131A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10142212 2001-08-29
DE10142212.1 2001-08-29

Publications (2)

Publication Number Publication Date
WO2003028131A2 WO2003028131A2 (de) 2003-04-03
WO2003028131A3 true WO2003028131A3 (de) 2004-09-02

Family

ID=7696922

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/002584 Ceased WO2003028131A2 (de) 2001-08-29 2002-07-13 Brennstoffzelle und brennstoffzellenstapel, sowie verfahren zum betreiben derselben

Country Status (1)

Country Link
WO (1) WO2003028131A2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT500968B8 (de) * 2004-10-07 2007-02-15 Avl List Gmbh Verfahren zur überwachung des betriebszustandes eines brennstoffzellenstapels
US20080226952A1 (en) * 2007-03-16 2008-09-18 Cabot Corporation Processes for activating membrane electrode assemblies
CN108199064B (zh) * 2016-12-08 2021-03-16 中国科学院大连化学物理研究所 一种直接甲醇燃料电池抗毒化的方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3544380A (en) * 1967-04-21 1970-12-01 Hooker Chemical Corp Method of activating fuel cell electrode by direct current
EP0445597A2 (de) * 1990-03-08 1991-09-11 Gte Laboratories Incorporated Verfahren und Vorrichtung zum Betrieb einer Brennstoffzelle mit gasförmigen Reaktanten
EP0701294A1 (de) * 1994-06-16 1996-03-13 British Gas plc Verfahren zum Betrieb einer Brennstoffzelle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3544380A (en) * 1967-04-21 1970-12-01 Hooker Chemical Corp Method of activating fuel cell electrode by direct current
EP0445597A2 (de) * 1990-03-08 1991-09-11 Gte Laboratories Incorporated Verfahren und Vorrichtung zum Betrieb einer Brennstoffzelle mit gasförmigen Reaktanten
EP0701294A1 (de) * 1994-06-16 1996-03-13 British Gas plc Verfahren zum Betrieb einer Brennstoffzelle

Also Published As

Publication number Publication date
WO2003028131A2 (de) 2003-04-03

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