WO2014174301A3 - Operation of a fuel cell system - Google Patents

Operation of a fuel cell system Download PDF

Info

Publication number
WO2014174301A3
WO2014174301A3 PCT/GB2014/051281 GB2014051281W WO2014174301A3 WO 2014174301 A3 WO2014174301 A3 WO 2014174301A3 GB 2014051281 W GB2014051281 W GB 2014051281W WO 2014174301 A3 WO2014174301 A3 WO 2014174301A3
Authority
WO
WIPO (PCT)
Prior art keywords
fuel cell
cell system
cathode
during
liquid electrolyte
Prior art date
Application number
PCT/GB2014/051281
Other languages
French (fr)
Other versions
WO2014174301A2 (en
Inventor
Naveed AKHTAR
Original Assignee
Afc Energy Plc
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 Afc Energy Plc filed Critical Afc Energy Plc
Priority to GB1518278.5A priority Critical patent/GB2527259A/en
Publication of WO2014174301A2 publication Critical patent/WO2014174301A2/en
Publication of WO2014174301A3 publication Critical patent/WO2014174301A3/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
    • H01M8/08—Fuel cells with aqueous electrolytes
    • H01M8/083—Alkaline fuel cells
    • 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
    • H01M4/9041—Metals or alloys
    • 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
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H01M8/04753—Pressure; Flow of fuel cell reactants
    • 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
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04791—Concentration; Density
    • H01M8/0482—Concentration; Density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0002—Aqueous electrolytes
    • H01M2300/0014—Alkaline electrolytes
    • 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
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • 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
    • H01M8/04276—Arrangements for managing the electrolyte stream, e.g. heat exchange
    • H01M8/04283—Supply means of electrolyte to or in matrix-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
    • 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

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

Abstract

A liquid electrolyte fuel cell system comprises at least one fuel cell (80) comprising a liquid electrolyte chamber (82) between an anode (83) and an opposed cathode (84). During operation of the fuel cell system, ageing of the cathode is counteracted by (a) increasing the flow rate of gas to the cathode (84) during the course of operation; and/or (b) decreasing the concentration of electrolyte supplied to the liquid electrolyte chamber (82) during the course of operation. The optimum effect is achieved by performing both changes.
PCT/GB2014/051281 2013-04-24 2014-04-24 Operation of a fuel cell system WO2014174301A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1518278.5A GB2527259A (en) 2013-04-24 2014-04-24 Operation of a fuel cell system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1307416.6 2013-04-24
GBGB1307416.6A GB201307416D0 (en) 2013-04-24 2013-04-24 Operation of fuel cell system

Publications (2)

Publication Number Publication Date
WO2014174301A2 WO2014174301A2 (en) 2014-10-30
WO2014174301A3 true WO2014174301A3 (en) 2015-04-09

Family

ID=48579591

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2014/051281 WO2014174301A2 (en) 2013-04-24 2014-04-24 Operation of a fuel cell system

Country Status (2)

Country Link
GB (2) GB201307416D0 (en)
WO (1) WO2014174301A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20159752A1 (en) * 2015-12-30 2017-06-30 Electro Power Systems Mfg Srl PROCEDURE FOR ADJUSTING THE COMPOSITION OF AN ELECTROLYTE IN A SYSTEM INCLUDING A FUEL CELL
DE102020116891A1 (en) 2020-06-26 2021-12-30 Audi Aktiengesellschaft Power-modulated and superstoichiometrically operated fuel cell system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4934093B1 (en) * 1969-11-05 1974-09-11
JPS5040694B1 (en) * 1970-10-30 1975-12-26
US5149599A (en) * 1989-09-20 1992-09-22 Fuji Electric Co., Ltd. Method of stopping the operation of phosphoric acid type fuel cell
WO2006063471A2 (en) * 2004-12-17 2006-06-22 Astris Energi Inc. Alkaline fuel cell system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4934093A (en) * 1972-07-29 1974-03-29
JPS5040694A (en) * 1974-02-06 1975-04-14

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4934093B1 (en) * 1969-11-05 1974-09-11
JPS5040694B1 (en) * 1970-10-30 1975-12-26
US5149599A (en) * 1989-09-20 1992-09-22 Fuji Electric Co., Ltd. Method of stopping the operation of phosphoric acid type fuel cell
WO2006063471A2 (en) * 2004-12-17 2006-06-22 Astris Energi Inc. Alkaline fuel cell system

Also Published As

Publication number Publication date
GB201518278D0 (en) 2015-12-02
GB201307416D0 (en) 2013-06-05
GB2527259A (en) 2015-12-16
WO2014174301A2 (en) 2014-10-30

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