WO2003092139A3 - Durable bipolar plates for fuel cells - Google Patents

Durable bipolar plates for fuel cells Download PDF

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Publication number
WO2003092139A3
WO2003092139A3 PCT/US2003/012594 US0312594W WO03092139A3 WO 2003092139 A3 WO2003092139 A3 WO 2003092139A3 US 0312594 W US0312594 W US 0312594W WO 03092139 A3 WO03092139 A3 WO 03092139A3
Authority
WO
WIPO (PCT)
Prior art keywords
fuel cells
bipolar plates
layer
sulfuric acid
acid solution
Prior art date
Application number
PCT/US2003/012594
Other languages
French (fr)
Other versions
WO2003092139A2 (en
Inventor
Roy G Gordon
Original Assignee
Harvard College
Roy G Gordon
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 Harvard College, Roy G Gordon filed Critical Harvard College
Priority to AU2003228663A priority Critical patent/AU2003228663A1/en
Publication of WO2003092139A2 publication Critical patent/WO2003092139A2/en
Publication of WO2003092139A3 publication Critical patent/WO2003092139A3/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
    • H01M8/0204—Non-porous and characterised by the 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
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0206—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
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0206—Metals or alloys
    • H01M8/0208—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
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0223—Composites
    • H01M8/0228—Composites in the form of layered or coated products
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Inert Electrodes (AREA)
  • Fuel Cell (AREA)

Abstract

Fuel cells of the proton exchange membrane type use a sulfuric acid solution as their electrolyte. Electrically conductive bipolar plates separate adjacent fuel cells in a stack of fuel cells that are connected in series to provide higher voltage. Bipolar plates made from most metals (except for the very expensive noble metals such as platinum or gold) become etched by the sulfuric acid solution and/or develop an insulating oxide layer that reduces the electrical output of the cells. A double layer coating has been found that protects bipolar plates from the acid electrolyte. The plates are protected by a layer of corrosion-resistant metal, such as tantalum or a nickel alloy, followed by a layer of tin oxide. Fluorine and/or antinomy doping of tin oxide provides the low electrical resistance necessary for efficient operation of the fuel cells. Chemical vapor deposition is the preferred method for depositing these two protective layers on the complicated contours of bipolar plates.
PCT/US2003/012594 2002-04-26 2003-04-24 Durable bipolar plates for fuel cells WO2003092139A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003228663A AU2003228663A1 (en) 2002-04-26 2003-04-24 Durable bipolar plates for fuel cells

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37577802P 2002-04-26 2002-04-26
US60/375,778 2002-04-26

Publications (2)

Publication Number Publication Date
WO2003092139A2 WO2003092139A2 (en) 2003-11-06
WO2003092139A3 true WO2003092139A3 (en) 2005-03-24

Family

ID=29270697

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/012594 WO2003092139A2 (en) 2002-04-26 2003-04-24 Durable bipolar plates for fuel cells

Country Status (2)

Country Link
AU (1) AU2003228663A1 (en)
WO (1) WO2003092139A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8377607B2 (en) * 2005-06-30 2013-02-19 GM Global Technology Operations LLC Fuel cell contact element including a TiO2 layer and a conductive layer
CN102593479A (en) * 2012-02-20 2012-07-18 上海电力学院 304 stainless-steel bipolar plate with Sb-doped SnO2 thin film coating, and preparation method and application thereof
JP6777011B2 (en) 2017-05-19 2020-10-28 トヨタ自動車株式会社 Fuel cell separator
JP6870470B2 (en) 2017-05-19 2021-05-12 トヨタ自動車株式会社 Fuel cell separator
JP6947009B2 (en) * 2017-12-22 2021-10-13 トヨタ自動車株式会社 Separator for fuel cell and fuel cell
JP6947047B2 (en) * 2018-01-16 2021-10-13 トヨタ自動車株式会社 Fuel cell separator and its manufacturing method
JP7020268B2 (en) * 2018-04-23 2022-02-16 トヨタ自動車株式会社 Fuel cell separator
CN109755592B (en) * 2018-12-26 2023-10-27 浙江锋源氢能科技有限公司 Metal bipolar plate, preparation method thereof and fuel cell
DE102019108660A1 (en) 2019-04-03 2020-10-08 Friedrich-Alexander-Universität Erlangen-Nürnberg Layer system, bipolar plate with such a layer system and fuel cell formed with it

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08185870A (en) * 1994-12-27 1996-07-16 Tonen Corp Separator for solid electrolyte fuel cell
JP2000021420A (en) * 1998-06-30 2000-01-21 Matsushita Electric Ind Co Ltd Solid high polymer fuel cell
DE10017058A1 (en) * 2000-04-05 2001-10-11 Schicke Rolf Bipolar plate used for a PEM fuel cell stack is made from a first metal with a metallic coating of a second metal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08185870A (en) * 1994-12-27 1996-07-16 Tonen Corp Separator for solid electrolyte fuel cell
JP2000021420A (en) * 1998-06-30 2000-01-21 Matsushita Electric Ind Co Ltd Solid high polymer fuel cell
DE10017058A1 (en) * 2000-04-05 2001-10-11 Schicke Rolf Bipolar plate used for a PEM fuel cell stack is made from a first metal with a metallic coating of a second metal

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 11 29 November 1996 (1996-11-29) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 04 31 August 2000 (2000-08-31) *

Also Published As

Publication number Publication date
WO2003092139A2 (en) 2003-11-06
AU2003228663A1 (en) 2003-11-10
AU2003228663A8 (en) 2003-11-10

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