CA2146331C - Appareil et methode lies a un joint d'etancheite pour pile a combustible - Google Patents

Appareil et methode lies a un joint d'etancheite pour pile a combustible

Info

Publication number
CA2146331C
CA2146331C CA002146331A CA2146331A CA2146331C CA 2146331 C CA2146331 C CA 2146331C CA 002146331 A CA002146331 A CA 002146331A CA 2146331 A CA2146331 A CA 2146331A CA 2146331 C CA2146331 C CA 2146331C
Authority
CA
Canada
Prior art keywords
membrane
sheet material
layers
seal assembly
assembly
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.)
Expired - Fee Related
Application number
CA002146331A
Other languages
English (en)
Other versions
CA2146331A1 (fr
Inventor
Clarence Y. Chow
David S. Watkins
Kirk B. Washington
Shiraz Ramji
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
Ballard Power Systems Inc
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 Ballard Power Systems Inc filed Critical Ballard Power Systems Inc
Priority to CA002146331A priority Critical patent/CA2146331C/fr
Publication of CA2146331A1 publication Critical patent/CA2146331A1/fr
Application granted granted Critical
Publication of CA2146331C publication Critical patent/CA2146331C/fr
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
    • 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
    • H01M4/88—Processes of manufacture
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
    • 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)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Fuel Cell (AREA)

Abstract

Cette invention concerne un ensemble électrode à membrane-étanchéité (40) pour piles à combustible (10) qui comprend une première et une seconde couches de matériau conducteur mince et poreux tel que du papier en fibres de carbone (44, 50). Ces deux couches comportent entre elles une membrane échangeuse d'ions en polymère non poreux. Lesdites couches, qui couvrent et soutiennent la membrane (43) sur sensiblement toute sa surface, sont revêtues d'un catalyseur (54) d'activation électrochimique et collées à la membrane pour former un ensemble unitaire. Des ouvertures (51, 52, 111, 112, 113, 114) sont formées dans lesdites couches et la membrane pour laisser filtrer des fluides. Des gorges (60, 61) formées dans l'ensemble multicouche entourent les ouvertures sur tout leur pourtour ainsi que la zone électrochimiquement active et reçoivent des joints d'étanchéité pleins préformés (62, 63). Cette technique d'étanchéisation peut aussi être appliquée aux ensembles membrane-étanchéité (40) de la section humidification (30) des piles à combustible (10).
CA002146331A 1992-10-20 1992-10-20 Appareil et methode lies a un joint d'etancheite pour pile a combustible Expired - Fee Related CA2146331C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002146331A CA2146331C (fr) 1992-10-20 1992-10-20 Appareil et methode lies a un joint d'etancheite pour pile a combustible

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002146331A CA2146331C (fr) 1992-10-20 1992-10-20 Appareil et methode lies a un joint d'etancheite pour pile a combustible

Publications (2)

Publication Number Publication Date
CA2146331A1 CA2146331A1 (fr) 1994-04-28
CA2146331C true CA2146331C (fr) 1998-04-21

Family

ID=4155582

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002146331A Expired - Fee Related CA2146331C (fr) 1992-10-20 1992-10-20 Appareil et methode lies a un joint d'etancheite pour pile a combustible

Country Status (1)

Country Link
CA (1) CA2146331C (fr)

Also Published As

Publication number Publication date
CA2146331A1 (fr) 1994-04-28

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed