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WO2009078302A1 - Fuel cell - Google Patents

Fuel cell Download PDF

Info

Publication number
WO2009078302A1
WO2009078302A1 PCT/JP2008/072275 JP2008072275W WO2009078302A1 WO 2009078302 A1 WO2009078302 A1 WO 2009078302A1 JP 2008072275 W JP2008072275 W JP 2008072275W WO 2009078302 A1 WO2009078302 A1 WO 2009078302A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrodes
fuel
moisture retention
air
electrode assembly
Prior art date
Application number
PCT/JP2008/072275
Other languages
French (fr)
Japanese (ja)
Inventor
Akira Yajima
Asako Satoh
Hirofumi Kan
Risa Aoki
Yuichi Yoshida
Original Assignee
Kabushiki Kaisha Toshiba
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
Priority claimed from JP2008263061A external-priority patent/JP2009170406A/en
Application filed by Kabushiki Kaisha Toshiba filed Critical Kabushiki Kaisha Toshiba
Publication of WO2009078302A1 publication Critical patent/WO2009078302A1/en
Priority to US12/816,515 priority Critical patent/US20100255389A1/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
    • 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
    • H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
    • H01M8/04171—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal using adsorbents, wicks or hydrophilic 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
    • H01M8/1009—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)

Abstract

Disclosed is a fuel cell comprising a membrane electrode assembly (10) which is composed of fuel electrodes (11, 12), air electrodes (13, 14) and an electrolyte membrane (15) sandwiched between the fuel electrodes (11, 12) and the air electrodes (13, 14), a fuel supply mechanism (14) which is arranged on the fuel electrodes (11, 12) side of the membrane electrode assembly (10) and supplies a fuel to the fuel electrodes (11, 12), and a moisture retention layer (20) which is arranged on the air electrodes (13, 14) side of the membrane electrode assembly (10) and impregnated with water generated at the air electrodes (13, 14). The moisture retention layer (20) has a first moisture retention portion (22), which faces regions of the air electrodes (13, 14) wherein the temperature is high when power is generated, and a second moisture retention portion (21), which faces regions of the air electrodes (13, 14) wherein the temperature is low when power is generated. The second moisture retention portion (21) is so formed that water vapor from the membrane electrode assembly (10) is more easily discharged therethrough to the outside air than the first moisture retention portion (22).
PCT/JP2008/072275 2007-12-17 2008-12-08 Fuel cell WO2009078302A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/816,515 US20100255389A1 (en) 2007-12-17 2010-06-16 Fuel cell

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007325139 2007-12-17
JP2007-325139 2007-12-17
JP2008-263061 2008-10-09
JP2008263061A JP2009170406A (en) 2007-12-17 2008-10-09 Fuel cell

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/816,515 Continuation US20100255389A1 (en) 2007-12-17 2010-06-16 Fuel cell

Publications (1)

Publication Number Publication Date
WO2009078302A1 true WO2009078302A1 (en) 2009-06-25

Family

ID=40795418

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/072275 WO2009078302A1 (en) 2007-12-17 2008-12-08 Fuel cell

Country Status (1)

Country Link
WO (1) WO2009078302A1 (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001236976A (en) * 2000-02-22 2001-08-31 Sanyo Electric Co Ltd Fuel cell
JP2002124270A (en) * 2000-08-11 2002-04-26 Sanyo Electric Co Ltd Fuel cell
JP2002298859A (en) * 2001-04-02 2002-10-11 Nippon Soken Inc Fuel cell
JP2006079938A (en) * 2004-09-09 2006-03-23 Nissan Motor Co Ltd Gas diffusion layer and fuel cell using it
JP2007087648A (en) * 2005-09-20 2007-04-05 Nissan Motor Co Ltd Gas diffusion layer of solid polymer fuel cell
JP2007095432A (en) * 2005-09-28 2007-04-12 Toshiba Corp Fuel cell and fuel cell system
JP2007095558A (en) * 2005-09-29 2007-04-12 Toshiba Corp Fuel cell
JP2007299712A (en) * 2006-05-08 2007-11-15 Sony Corp Fuel cell
JP2009004135A (en) * 2007-06-19 2009-01-08 Fujitsu Ltd Fuel cell

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001236976A (en) * 2000-02-22 2001-08-31 Sanyo Electric Co Ltd Fuel cell
JP2002124270A (en) * 2000-08-11 2002-04-26 Sanyo Electric Co Ltd Fuel cell
JP2002298859A (en) * 2001-04-02 2002-10-11 Nippon Soken Inc Fuel cell
JP2006079938A (en) * 2004-09-09 2006-03-23 Nissan Motor Co Ltd Gas diffusion layer and fuel cell using it
JP2007087648A (en) * 2005-09-20 2007-04-05 Nissan Motor Co Ltd Gas diffusion layer of solid polymer fuel cell
JP2007095432A (en) * 2005-09-28 2007-04-12 Toshiba Corp Fuel cell and fuel cell system
JP2007095558A (en) * 2005-09-29 2007-04-12 Toshiba Corp Fuel cell
JP2007299712A (en) * 2006-05-08 2007-11-15 Sony Corp Fuel cell
JP2009004135A (en) * 2007-06-19 2009-01-08 Fujitsu Ltd Fuel cell

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