WO2005018015A3 - Spatially varying diffusion media and devices incorporating the same - Google Patents

Spatially varying diffusion media and devices incorporating the same Download PDF

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Publication number
WO2005018015A3
WO2005018015A3 PCT/US2004/017841 US2004017841W WO2005018015A3 WO 2005018015 A3 WO2005018015 A3 WO 2005018015A3 US 2004017841 W US2004017841 W US 2004017841W WO 2005018015 A3 WO2005018015 A3 WO 2005018015A3
Authority
WO
WIPO (PCT)
Prior art keywords
diffusion media
spatially varying
mesoporous layer
same
devices incorporating
Prior art date
Application number
PCT/US2004/017841
Other languages
French (fr)
Other versions
WO2005018015A2 (en
Inventor
Jeanette E O'hara
Thomas A Trabold
Michael R Schoeneweiss
Joerg Roth
Original Assignee
Gen Motors Corp
Jeanette E O'hara
Thomas A Trabold
Michael R Schoeneweiss
Joerg Roth
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 Gen Motors Corp, Jeanette E O'hara, Thomas A Trabold, Michael R Schoeneweiss, Joerg Roth filed Critical Gen Motors Corp
Priority to DE112004001393T priority Critical patent/DE112004001393B4/en
Priority to JP2006521821A priority patent/JP4695079B2/en
Publication of WO2005018015A2 publication Critical patent/WO2005018015A2/en
Publication of WO2005018015A3 publication Critical patent/WO2005018015A3/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
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/023—Porous and characterised by the material
    • H01M8/0241—Composites
    • H01M8/0245—Composites in the form of layered or coated products
    • 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
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/023—Porous and characterised by the material
    • H01M8/0234—Carbonaceous 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
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/023—Porous and characterised by the material
    • H01M8/0239—Organic resins; Organic polymers
    • 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
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/023—Porous and characterised by the material
    • H01M8/0241—Composites
    • 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
    • H01M8/04291—Arrangements for managing water in solid electrolyte fuel cell systems
    • 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

A diffusion media and a scheme for spatially varying the parameters of the diffusion media to address issues related to water management in electrochemical cells and other devices employing the diffusion media are provided. A device is configured to convert a hydrogenous fuel source to electrical energy and comprises an electrochemical conversion assembly, first and second reactant inputs, first and second product outputs, and first and second diffusion media. The device is configured such that a mesoporous layer is carried along at least a portion of a major face of one of the first and second diffusion media substrates. The mesoporous layer comprises a hydrophilic carbonaceous component and a hydrophobic component. The mesoporous layer occupies a substantially greater portion of one of the high or low H2O regions of the device, relative to the other of the high or low H2O region of the device.
PCT/US2004/017841 2003-07-28 2004-06-07 Spatially varying diffusion media and devices incorporating the same WO2005018015A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112004001393T DE112004001393B4 (en) 2003-07-28 2004-06-07 Fuel cell containing a spatially varying diffusion medium and use of such a fuel cell in a vehicle
JP2006521821A JP4695079B2 (en) 2003-07-28 2004-06-07 Diffusion medium whose characteristics change spatially and apparatus incorporating the medium

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/628,318 US7332240B2 (en) 2003-07-28 2003-07-28 Spatially varying diffusion media and devices incorporating the same
US10/628,318 2003-07-28

Publications (2)

Publication Number Publication Date
WO2005018015A2 WO2005018015A2 (en) 2005-02-24
WO2005018015A3 true WO2005018015A3 (en) 2005-05-06

Family

ID=34103361

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/017841 WO2005018015A2 (en) 2003-07-28 2004-06-07 Spatially varying diffusion media and devices incorporating the same

Country Status (5)

Country Link
US (1) US7332240B2 (en)
JP (1) JP4695079B2 (en)
CN (1) CN100585926C (en)
DE (1) DE112004001393B4 (en)
WO (1) WO2005018015A2 (en)

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US8603614B2 (en) * 2004-07-26 2013-12-10 Borgwarner Inc. Porous friction material with nanoparticles of friction modifying material
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US8394452B2 (en) * 2005-11-02 2013-03-12 Borgwarner Inc. Carbon friction materials
US8007943B2 (en) * 2005-11-03 2011-08-30 GM Global Technology Operations LLC Cascaded stack with gas flow recycle in the first stage
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US7955750B2 (en) * 2006-02-21 2011-06-07 GM Global Technology Operations LLC Controlled electrode overlap architecture for improved MEA durability
US8343452B2 (en) * 2006-03-20 2013-01-01 GM Global Technology Operations LLC Acrylic fiber bonded carbon fiber paper as gas diffusion media for fuel cell
EP2011143B1 (en) * 2006-03-29 2016-03-16 BorgWarner, Inc. Friction materials made with resins containing polar functional groups
US7687185B2 (en) * 2006-07-24 2010-03-30 Gm Global Technology Operations, Inc. Using sacrificial material to mitigate catalyst support corrosion in fuel cell electrode
US7569299B2 (en) 2006-07-25 2009-08-04 Gm Global Technology Operations, Inc. Multi-component fuel cell gasket for low temperature sealing and minimal membrane contamination
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US7883810B2 (en) 2006-11-09 2011-02-08 GM Global Technology Operations LLC Slow purge for improved water removal, freeze durability, purge energy efficiency and voltage degradation due to shutdown/startup cycling
US7829230B2 (en) 2007-07-17 2010-11-09 Gm Global Technology Operations, Inc. Method for optimizing diffusion media with spatially varying mass transport resistance
EP2028221A1 (en) * 2007-08-03 2009-02-25 Borgwarner, Inc. Friction material with silicon
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US8168340B2 (en) * 2007-11-07 2012-05-01 GM Global Technology Operations LLC Water removal features for PEMfc stack manifolds
US8409769B2 (en) * 2007-12-07 2013-04-02 GM Global Technology Operations LLC Gas diffusion layer for fuel cell
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DE102009030506A1 (en) * 2008-06-30 2009-12-31 Borgwarner Inc., Auburn Hills friction materials
US20100028750A1 (en) * 2008-08-04 2010-02-04 Gm Global Technology Operations, Inc. Gas diffusion layer with lower gas diffusivity
US20100028744A1 (en) * 2008-08-04 2010-02-04 Gm Global Technology Operations, Inc. Gas diffusion layer with lower gas diffusivity
US8177884B2 (en) * 2009-05-20 2012-05-15 United Technologies Corporation Fuel deoxygenator with porous support plate
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Also Published As

Publication number Publication date
US7332240B2 (en) 2008-02-19
CN1830111A (en) 2006-09-06
WO2005018015A2 (en) 2005-02-24
US20050026018A1 (en) 2005-02-03
DE112004001393T5 (en) 2006-06-29
DE112004001393B4 (en) 2013-08-22
CN100585926C (en) 2010-01-27
JP2007500423A (en) 2007-01-11
JP4695079B2 (en) 2011-06-08

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