WO2001043216A3 - Method and apparatus for operating a fuel cell - Google Patents

Method and apparatus for operating a fuel cell Download PDF

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Publication number
WO2001043216A3
WO2001043216A3 PCT/CA2000/001426 CA0001426W WO0143216A3 WO 2001043216 A3 WO2001043216 A3 WO 2001043216A3 CA 0001426 W CA0001426 W CA 0001426W WO 0143216 A3 WO0143216 A3 WO 0143216A3
Authority
WO
WIPO (PCT)
Prior art keywords
oxidant
fuel cell
stoichiometry
starvation
cell system
Prior art date
Application number
PCT/CA2000/001426
Other languages
French (fr)
Other versions
WO2001043216A2 (en
Inventor
Gustav Boehm
David P Wilkinson
Shanna Knights
Reinhold Schamm
Nicholas J Fletcher
Original Assignee
Ballard Power Systems
Gustav Boehm
David P Wilkinson
Shanna Knights
Reinhold Schamm
Nicholas J Fletcher
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 Ballard Power Systems, Gustav Boehm, David P Wilkinson, Shanna Knights, Reinhold Schamm, Nicholas J Fletcher filed Critical Ballard Power Systems
Priority to EP00984674A priority Critical patent/EP1245054B1/en
Priority to CA002392555A priority patent/CA2392555A1/en
Priority to AU21323/01A priority patent/AU2132301A/en
Priority to JP2001543800A priority patent/JP2003516615A/en
Priority to DE60030000T priority patent/DE60030000T2/en
Publication of WO2001043216A2 publication Critical patent/WO2001043216A2/en
Publication of WO2001043216A3 publication Critical patent/WO2001043216A3/en

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
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • 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

Abstract

The present invention relates to improving the overall efficiency of a fuel cell system by reducing parasitic power consumption. In particular, efficiency is improved by controlling the supply of oxidant to reduce excess oxidant stream flow by operating the fuel cell system with an oxidant stoichiometry between about one and two. A controller is programmed to decrease oxidant stoichiometry until oxidant starvation is detected or until oxidant stoichiometry is about one. When oxidant starvation is detected, the oxidant stoichiometry is increased until oxidant starvation is no longer detected. The fuel cell system employs a sensor for detecting an operational characteristic such as voltage output, or oxygen or hydrogen concentration in the cathode exhaust stream. The controller uses the operational characteristic to calculate oxidant stoichiometry or to determine when there is oxidant starvation at the cathode.
PCT/CA2000/001426 1999-12-06 2000-12-04 Method and apparatus for operating a fuel cell WO2001043216A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP00984674A EP1245054B1 (en) 1999-12-06 2000-12-04 Method and apparatus for operating a fuel cell
CA002392555A CA2392555A1 (en) 1999-12-06 2000-12-04 Method and apparatus for operating a fuel cell
AU21323/01A AU2132301A (en) 1999-12-06 2000-12-04 Method and apparatus for operating a fuel cell
JP2001543800A JP2003516615A (en) 1999-12-06 2000-12-04 Method and system for operating a fuel cell
DE60030000T DE60030000T2 (en) 1999-12-06 2000-12-04 METHOD AND DEVICE FOR OPERATING A FUEL CELL

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/455,033 US6461751B1 (en) 1999-12-06 1999-12-06 Method and apparatus for operating a fuel cell
US09/455,033 1999-12-06

Publications (2)

Publication Number Publication Date
WO2001043216A2 WO2001043216A2 (en) 2001-06-14
WO2001043216A3 true WO2001043216A3 (en) 2001-12-06

Family

ID=23807099

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2000/001426 WO2001043216A2 (en) 1999-12-06 2000-12-04 Method and apparatus for operating a fuel cell

Country Status (8)

Country Link
US (1) US6461751B1 (en)
EP (1) EP1245054B1 (en)
JP (1) JP2003516615A (en)
AT (1) ATE336084T1 (en)
AU (1) AU2132301A (en)
CA (1) CA2392555A1 (en)
DE (1) DE60030000T2 (en)
WO (1) WO2001043216A2 (en)

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Also Published As

Publication number Publication date
AU2132301A (en) 2001-06-18
US6461751B1 (en) 2002-10-08
EP1245054A2 (en) 2002-10-02
EP1245054B1 (en) 2006-08-09
DE60030000D1 (en) 2006-09-21
JP2003516615A (en) 2003-05-13
DE60030000T2 (en) 2007-09-06
CA2392555A1 (en) 2001-06-14
WO2001043216A2 (en) 2001-06-14
ATE336084T1 (en) 2006-09-15

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