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WO2003026036A3 - Coated metal object in the form of a plate and used as component of a fuel cell stack - Google Patents

Coated metal object in the form of a plate and used as component of a fuel cell stack Download PDF

Info

Publication number
WO2003026036A3
WO2003026036A3 PCT/EP2002/010481 EP0210481W WO03026036A3 WO 2003026036 A3 WO2003026036 A3 WO 2003026036A3 EP 0210481 W EP0210481 W EP 0210481W WO 03026036 A3 WO03026036 A3 WO 03026036A3
Authority
WO
WIPO (PCT)
Prior art keywords
metal
coat
cell stack
fuel cell
component
Prior art date
Application number
PCT/EP2002/010481
Other languages
German (de)
French (fr)
Other versions
WO2003026036A2 (en
Inventor
Petra Koschany
Original Assignee
Manhattan Scientifics Inc
Petra Koschany
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 Manhattan Scientifics Inc, Petra Koschany filed Critical Manhattan Scientifics Inc
Priority to AU2002362328A priority Critical patent/AU2002362328A1/en
Publication of WO2003026036A2 publication Critical patent/WO2003026036A2/en
Publication of WO2003026036A3 publication Critical patent/WO2003026036A3/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
    • H01M8/0223—Composites
    • H01M8/0228—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
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0206—Metals or alloys
    • H01M8/0208—Alloys
    • H01M8/021—Alloys based on iron
    • 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
    • H01M8/0232—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
    • H01M8/023—Porous and characterised by the material
    • H01M8/0241—Composites
    • H01M8/0245—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)
  • Composite Materials (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)
  • Fuel Cell (AREA)
  • Inert Electrodes (AREA)

Abstract

The invention concerns a coated metal object in the form of a plate designed to be used as component of a fuel cell stack. The coat of said object consists of an open thin layer, having a maximum thickness of 0.04 νm and containing a metal such as tin, indium, antimony or a metal of the platinum group (Ru, Rh, Os, Pa, Ir, Pt), which comprises, in variable amount, bonds with oxygen atoms in said layer. The coat metal has, as such or in all the variable oxidation states, a sufficiently good electroconductivity. Said coat enables economical use of metal components in fuel cells as bipolar plates, gas distribution layers, or refrigerating layers. It is possible to use inexpensive materials whereof the contact resistance levels remain low more or less continuously, even when the operating modes of the fuel cells changes and the oxidation levels of the coat, which are related to said different operating modes, vary.
PCT/EP2002/010481 2001-09-18 2002-09-18 Coated metal object in the form of a plate and used as component of a fuel cell stack WO2003026036A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002362328A AU2002362328A1 (en) 2001-09-18 2002-09-18 Coated metal object in the form of a plate and used as component of a fuel cell stack

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10145940.8 2001-09-18
DE10145940 2001-09-18

Publications (2)

Publication Number Publication Date
WO2003026036A2 WO2003026036A2 (en) 2003-03-27
WO2003026036A3 true WO2003026036A3 (en) 2003-10-09

Family

ID=7699415

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/010481 WO2003026036A2 (en) 2001-09-18 2002-09-18 Coated metal object in the form of a plate and used as component of a fuel cell stack

Country Status (2)

Country Link
AU (1) AU2002362328A1 (en)
WO (1) WO2003026036A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004034620A1 (en) * 2004-07-16 2006-02-02 Behr Gmbh & Co. Kg Fluid-throughflow device and operating method
DE102004059691A1 (en) * 2004-12-10 2006-07-20 Daimlerchrysler Ag Separator plate for proton exchange membrane (PEM) fuel cell has structure made up of slots for guiding reaction material fluid from inlet to outlet port whereby slots have incomplete coating of hydrophobic material at their surfaces
US7959987B2 (en) 2004-12-13 2011-06-14 Applied Materials, Inc. Fuel cell conditioning layer
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
US20070243452A1 (en) * 2006-04-14 2007-10-18 Applied Materials, Inc. Reliable fuel cell electrode design

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1285417A (en) * 1969-10-13 1972-08-16 Int Nickel Ltd Production of protective coatings on metals by anodic oxidation
EP0423448A1 (en) * 1989-09-20 1991-04-24 Asea Brown Boveri Ag Collection for the conduction of current between high temperature fuel cells arranged in a pile and method for producing the same
JPH07296827A (en) * 1994-04-27 1995-11-10 Tokyo Gas Co Ltd Internal manifold type solid electrolyte fuel cell having composite separator
EP0955686A1 (en) * 1998-05-07 1999-11-10 Toyota Jidosha Kabushiki Kaisha Separator for fuel cell, fuel cell incorporating the same, and method of production of the same
US20010021470A1 (en) * 1998-10-08 2001-09-13 Barret May Fuel cells and fuel cell plates

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1285417A (en) * 1969-10-13 1972-08-16 Int Nickel Ltd Production of protective coatings on metals by anodic oxidation
EP0423448A1 (en) * 1989-09-20 1991-04-24 Asea Brown Boveri Ag Collection for the conduction of current between high temperature fuel cells arranged in a pile and method for producing the same
JPH07296827A (en) * 1994-04-27 1995-11-10 Tokyo Gas Co Ltd Internal manifold type solid electrolyte fuel cell having composite separator
EP0955686A1 (en) * 1998-05-07 1999-11-10 Toyota Jidosha Kabushiki Kaisha Separator for fuel cell, fuel cell incorporating the same, and method of production of the same
US20010021470A1 (en) * 1998-10-08 2001-09-13 Barret May Fuel cells and fuel cell plates

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 03 29 March 1996 (1996-03-29) *

Also Published As

Publication number Publication date
WO2003026036A2 (en) 2003-03-27
AU2002362328A1 (en) 2003-04-01

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