WO2004070864A3 - Flow field - Google Patents

Flow field Download PDF

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Publication number
WO2004070864A3
WO2004070864A3 PCT/US2003/040525 US0340525W WO2004070864A3 WO 2004070864 A3 WO2004070864 A3 WO 2004070864A3 US 0340525 W US0340525 W US 0340525W WO 2004070864 A3 WO2004070864 A3 WO 2004070864A3
Authority
WO
WIPO (PCT)
Prior art keywords
flow field
subsection
draft
channels
article bearing
Prior art date
Application number
PCT/US2003/040525
Other languages
French (fr)
Other versions
WO2004070864A2 (en
Inventor
Dennis E Ferguson
Original Assignee
3M Innovative Properties Co
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 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Priority to AU2003297372A priority Critical patent/AU2003297372A1/en
Priority to EP03815781A priority patent/EP1588446A2/en
Priority to CA002514630A priority patent/CA2514630A1/en
Priority to JP2004568039A priority patent/JP2006514406A/en
Publication of WO2004070864A2 publication Critical patent/WO2004070864A2/en
Publication of WO2004070864A3 publication Critical patent/WO2004070864A3/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
    • H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
    • H01M8/0265—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant the reactant or coolant channels having varying cross sections
    • 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
    • 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
    • H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
    • H01M8/026—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
    • 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
    • H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
    • H01M8/0263—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant having meandering or serpentine paths
    • 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
    • H01M8/0267—Collectors; Separators, e.g. bipolar separators; Interconnectors having heating or cooling means, e.g. heaters or coolant flow channels
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/2457—Parallel ribs and/or grooves

Abstract

An article bearing a flow field such as a distribution plate for use in a fuel cell is provided. The active portion of the article, i.e., the portion of the article bearing the flow field, comprises at least two subsections; a first central subsection and a second peripheral subsection; wherein channels within the first subsection have a cross-sectional profile that differs from that of channels within the second subsection. Typically, channels of the first subsection have lesser depth, greater draft or greater ratio of draft to depth. In addition, an article bearing a flow field is provided where the flow field comprises at least two channel segments which differ in draft. In addition, an article bearing a flow field is provided where the flow field comprises at least one channel segment comprising first and second channel walls which differ in draft.
PCT/US2003/040525 2003-01-31 2003-12-19 Flow field WO2004070864A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2003297372A AU2003297372A1 (en) 2003-01-31 2003-12-19 Flow field
EP03815781A EP1588446A2 (en) 2003-01-31 2003-12-19 Flow field
CA002514630A CA2514630A1 (en) 2003-01-31 2003-12-19 Flow field
JP2004568039A JP2006514406A (en) 2003-01-31 2003-12-19 Flow field

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/356,045 US7482088B2 (en) 2003-01-31 2003-01-31 Flow field
US10/356,045 2003-01-31

Publications (2)

Publication Number Publication Date
WO2004070864A2 WO2004070864A2 (en) 2004-08-19
WO2004070864A3 true WO2004070864A3 (en) 2005-03-31

Family

ID=32770697

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/040525 WO2004070864A2 (en) 2003-01-31 2003-12-19 Flow field

Country Status (8)

Country Link
US (2) US7482088B2 (en)
EP (1) EP1588446A2 (en)
JP (1) JP2006514406A (en)
KR (1) KR20050095911A (en)
CN (1) CN100541884C (en)
AU (1) AU2003297372A1 (en)
CA (1) CA2514630A1 (en)
WO (1) WO2004070864A2 (en)

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US20040265675A1 (en) * 2003-06-24 2004-12-30 General Electric Company Fuel Cell Flow Field Design
FR2861896B1 (en) * 2003-10-31 2006-02-03 Snecma Moteurs STRUCTURE FOR FUEL CELL
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JP5137460B2 (en) * 2007-05-14 2013-02-06 本田技研工業株式会社 Fuel cell
US20090208803A1 (en) * 2008-02-19 2009-08-20 Simon Farrington Flow field for fuel cell and fuel cell stack
US9028989B2 (en) * 2011-06-03 2015-05-12 GM Global Technology Operations LLC Fuel cell system having a fluid flow distribution feature
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Publication number Priority date Publication date Assignee Title
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DE10054444A1 (en) * 1999-11-03 2001-05-10 Vaillant Joh Gmbh & Co Fuel cell has cross-section of meandering channel supplying fuel cell membrane increasing in flow direction according to linear, exponential or step function
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GB2372626A (en) * 2001-05-03 2002-08-28 Morgan Crucible Co Flow field plate geometries

Also Published As

Publication number Publication date
WO2004070864A2 (en) 2004-08-19
US20040151970A1 (en) 2004-08-05
CN100541884C (en) 2009-09-16
AU2003297372A1 (en) 2004-08-30
US8192856B2 (en) 2012-06-05
US7482088B2 (en) 2009-01-27
CN1745491A (en) 2006-03-08
JP2006514406A (en) 2006-04-27
EP1588446A2 (en) 2005-10-26
CA2514630A1 (en) 2004-08-19
KR20050095911A (en) 2005-10-04
US20090104506A1 (en) 2009-04-23

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