FR2198275A1 - Single layer fuel cell gas electrode - with graduated composition variation from gas to electrolyte sides - Google Patents

Single layer fuel cell gas electrode - with graduated composition variation from gas to electrolyte sides

Info

Publication number
FR2198275A1
FR2198275A1 FR7331448A FR7331448A FR2198275A1 FR 2198275 A1 FR2198275 A1 FR 2198275A1 FR 7331448 A FR7331448 A FR 7331448A FR 7331448 A FR7331448 A FR 7331448A FR 2198275 A1 FR2198275 A1 FR 2198275A1
Authority
FR
France
Prior art keywords
electrode
gas
separator
fuel cell
single layer
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.)
Withdrawn
Application number
FR7331448A
Other languages
French (fr)
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of FR2198275A1 publication Critical patent/FR2198275A1/en
Withdrawn legal-status Critical Current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
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
    • C25B11/073—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
    • C25B11/091—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of at least one catalytic element and at least one catalytic compound; consisting of two or more catalytic elements or catalytic compounds
    • C25B11/095—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of at least one catalytic element and at least one catalytic compound; consisting of two or more catalytic elements or catalytic compounds at least one of the compounds being organic
    • 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)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inert Electrodes (AREA)

Abstract

A uniform mixture of hydrophilic active catalyst material and hydrophobic polymer is hot pressed between thin layers of separator material into a thin plate electrode. The separator on the electrolyte side of the electrode is stripped off mechanically and the whole electrode is then dipped into a bath of etching soln. This not only removes the separator from the gas side of the electrode but also surface etches hydrophobe material from the electrolyte side to increase the relative proportion of catalyst and define a mesh structure. The graduation improves the effective three phase boundary distribution and hence efficiency of both oxidizing and reducing plates.
FR7331448A 1972-09-01 1973-08-30 Single layer fuel cell gas electrode - with graduated composition variation from gas to electrolyte sides Withdrawn FR2198275A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2243152 1972-09-01

Publications (1)

Publication Number Publication Date
FR2198275A1 true FR2198275A1 (en) 1974-03-29

Family

ID=5855288

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7331448A Withdrawn FR2198275A1 (en) 1972-09-01 1973-08-30 Single layer fuel cell gas electrode - with graduated composition variation from gas to electrolyte sides

Country Status (3)

Country Link
BE (1) BE804211A (en)
FR (1) FR2198275A1 (en)
NL (1) NL7312021A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2417554A1 (en) * 1978-02-17 1979-09-14 Ppg Industries Inc CATHODE CONTAINING A COMPOUND OF INTERCALATION OF CARBON AND FLUORINE, USED IN PARTICULAR FOR THE ELECTROLYSIS OF BRINE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2417554A1 (en) * 1978-02-17 1979-09-14 Ppg Industries Inc CATHODE CONTAINING A COMPOUND OF INTERCALATION OF CARBON AND FLUORINE, USED IN PARTICULAR FOR THE ELECTROLYSIS OF BRINE

Also Published As

Publication number Publication date
BE804211A (en) 1973-12-17
NL7312021A (en) 1974-03-05

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Legal Events

Date Code Title Description
ST Notification of lapse