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CA2146332A1 - Lightweight fuel cell membrane electrode assembly with integral reactant flow passages - Google Patents

Lightweight fuel cell membrane electrode assembly with integral reactant flow passages

Info

Publication number
CA2146332A1
CA2146332A1 CA2146332A CA2146332A CA2146332A1 CA 2146332 A1 CA2146332 A1 CA 2146332A1 CA 2146332 A CA2146332 A CA 2146332A CA 2146332 A CA2146332 A CA 2146332A CA 2146332 A1 CA2146332 A1 CA 2146332A1
Authority
CA
Canada
Prior art keywords
electrode
fuel cell
electrode assembly
layers
membrane electrode
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA2146332A
Other languages
French (fr)
Other versions
CA2146332C (en
Inventor
David Pentreath Wilkinson
Henry H. Voss
Keith B. Prater
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ballard Power Systems Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA002146332A priority Critical patent/CA2146332C/en
Publication of CA2146332A1 publication Critical patent/CA2146332A1/en
Application granted granted Critical
Publication of CA2146332C publication Critical patent/CA2146332C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/94—Non-porous diffusion electrodes, e.g. palladium membranes, ion exchange membranes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid 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
    • 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
    • Y02E60/10—Energy storage using batteries
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)

Abstract

An electrochemical fuel cell is provided for converting a fuel reactant stream and an oxidant reactant stream to a reaction product stream and electrical energy. The fuel cell includes a membrane electrode assembly (52) interposed between two separator layers (54, 56). The separator layers are formed of thin electrically conductive sheet material which is substantially impermeable to the fuel and oxidant reactant streams. The membrane electrode assembly comprises first and second electrode layers (64, 66) formed of porous electrically conductive sheet material.
The electrode layers have a catalyst associated therewith, and an ion exchange membrane is interposed between the first and second electrode layers. The electrode layers include passages, such as the interstitial spaces within the electrode material or grooves (64a, 66a) formed in the surface of the electrode material, for flowing a reactant stream between an inlet and outlet within the electrode layer.
CA002146332A 1992-10-20 1992-10-20 Lightweight fuel cell membrane electrode assembly with integral reactant flow passages Expired - Fee Related CA2146332C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002146332A CA2146332C (en) 1992-10-20 1992-10-20 Lightweight fuel cell membrane electrode assembly with integral reactant flow passages

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002146332A CA2146332C (en) 1992-10-20 1992-10-20 Lightweight fuel cell membrane electrode assembly with integral reactant flow passages

Publications (2)

Publication Number Publication Date
CA2146332A1 true CA2146332A1 (en) 1994-04-28
CA2146332C CA2146332C (en) 1998-04-21

Family

ID=4155583

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002146332A Expired - Fee Related CA2146332C (en) 1992-10-20 1992-10-20 Lightweight fuel cell membrane electrode assembly with integral reactant flow passages

Country Status (1)

Country Link
CA (1) CA2146332C (en)

Also Published As

Publication number Publication date
CA2146332C (en) 1998-04-21

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Legal Events

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