FR2429501A1 - COMPOSITE STRUCTURE FOR GRAPHITE-RESIN ELECTRODE AND PROCESS FOR PREPARING THE SAME - Google Patents

COMPOSITE STRUCTURE FOR GRAPHITE-RESIN ELECTRODE AND PROCESS FOR PREPARING THE SAME

Info

Publication number
FR2429501A1
FR2429501A1 FR7915698A FR7915698A FR2429501A1 FR 2429501 A1 FR2429501 A1 FR 2429501A1 FR 7915698 A FR7915698 A FR 7915698A FR 7915698 A FR7915698 A FR 7915698A FR 2429501 A1 FR2429501 A1 FR 2429501A1
Authority
FR
France
Prior art keywords
molding
electrode
during
graphite
pore
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
FR7915698A
Other languages
French (fr)
Other versions
FR2429501B1 (en
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.)
Centro Ricerche Fiat SCpA
Original Assignee
Centro Ricerche Fiat SCpA
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 Centro Ricerche Fiat SCpA filed Critical Centro Ricerche Fiat SCpA
Publication of FR2429501A1 publication Critical patent/FR2429501A1/en
Application granted granted Critical
Publication of FR2429501B1 publication Critical patent/FR2429501B1/fr
Granted 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
    • H01M4/88—Processes of manufacture
    • H01M4/8803—Supports for the deposition of the catalytic active composition
    • H01M4/8807—Gas diffusion layers
    • 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
    • H01M4/8817—Treatment of supports before application of the catalytic active composition
    • H01M4/8821—Wet proofing
    • 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
    • H01M8/0234—Carbonaceous 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
    • H01M8/023—Porous and characterised by the material
    • H01M8/0239—Organic resins; Organic polymers
    • 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
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Composite Materials (AREA)
  • Inert Electrodes (AREA)
  • Fuel Cell (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Selon l'invention on mélange intimement du graphite en poudre avec les monomères de la résine et on polymérise partiellement puis on broie le mélange avant de former une composition à mouler par addition d'un agent porogène que l'on peut éliminer par decomposition ou lixiviation pour former des pores de taille uniforme; on incorpore à l'électrode un catalyseur de la réaction d'électrode, avec l'agent porogène ou sous forme d'une couche mince pendant le moulage, et on incorpore également lors du moulage un élément de renforcement 5 conducteur de l'électricité qui se comporte comme un rhéophore; on peut former des couches 3, 4 ayant des pores de tailles différentes et appliquer une pellicule hydrophobe à une des faces de l'électrode. L'invention s'applique en particulier à des piles à combustible à électrolytes acides.According to the invention, powdered graphite is intimately mixed with the monomers of the resin and the mixture is partially polymerized and then the mixture is ground before forming a molding composition by adding a pore-forming agent which can be removed by decomposition or leaching. to form uniformly sized pores; a catalyst of the electrode reaction is incorporated into the electrode, together with the pore-forming agent or in the form of a thin film during the molding, and during the molding an electrically conductive reinforcing element is also incorporated during the molding, which behaves like a rheophore; it is possible to form layers 3, 4 having pores of different sizes and to apply a hydrophobic film to one of the faces of the electrode. The invention applies in particular to fuel cells with acid electrolytes.

FR7915698A 1978-06-20 1979-06-19 COMPOSITE STRUCTURE FOR GRAPHITE-RESIN ELECTRODE AND PROCESS FOR PREPARING THE SAME Granted FR2429501A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT68442/78A IT1111479B (en) 1978-06-20 1978-06-20 GRAPHITE Porous COMPOSITE STRUCTURE ELECTRODE RESIN FOR APPLICATION IN ELECTROCHEMICAL SYSTEMS

Publications (2)

Publication Number Publication Date
FR2429501A1 true FR2429501A1 (en) 1980-01-18
FR2429501B1 FR2429501B1 (en) 1984-04-06

Family

ID=11309429

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7915698A Granted FR2429501A1 (en) 1978-06-20 1979-06-19 COMPOSITE STRUCTURE FOR GRAPHITE-RESIN ELECTRODE AND PROCESS FOR PREPARING THE SAME

Country Status (5)

Country Link
JP (1) JPS553197A (en)
DE (1) DE2924669C2 (en)
FR (1) FR2429501A1 (en)
GB (1) GB2023916B (en)
IT (1) IT1111479B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5937662A (en) * 1982-08-24 1984-03-01 Kureha Chem Ind Co Ltd Electrode substrate for monopolar type fuel cell with two-layer structure
JPS5946763A (en) * 1982-09-10 1984-03-16 Kureha Chem Ind Co Ltd Two-layered electrode base plate for monopolar fuel cell
JPS60236461A (en) * 1984-04-04 1985-11-25 Kureha Chem Ind Co Ltd Electrode substrate for fuel cell and its manufacture
US4664988A (en) * 1984-04-06 1987-05-12 Kureha Kagaku Kogyo Kabushiki Kaisha Fuel cell electrode substrate incorporating separator as an intercooler and process for preparation thereof
JPS6123780A (en) * 1984-07-12 1986-02-01 Kureha Chem Ind Co Ltd Oxygen cathode for electrolyzing alkali chloride and its manufacture
DE3437472A1 (en) * 1984-10-12 1986-04-24 Varta Batterie Ag, 3000 Hannover Process for manufacturing gas diffusion electrode bodies
WO2003007407A1 (en) * 2001-07-09 2003-01-23 Honda Giken Kogyo Kabushiki Kaisha Method of manufacturing separator for fuel cell
HUP0501201A2 (en) * 2005-12-23 2007-07-30 Cella H Electrode for electrochemical cell working with high differential pressure difference, method for producing said electrode and electrochemical cell for using said electrode

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2124458A1 (en) * 1971-02-03 1972-09-22 Kureha Chemical Ind Co Ltd

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1250791B (en) * 1960-07-04 1967-09-28 Siemens Aktiengesellschaft, Berlin und München, Erlangen; VARTA AKTIENGESELLSCHAFT, Frankfurt/Main Two-layer oxygen diffusion electrode
NL126475C (en) * 1961-08-02
GB1285199A (en) * 1968-11-18 1972-08-09 Westinghouse Electric Corp Gas diffusion electrode
GB1378654A (en) * 1971-06-09 1974-12-27 Lucas Industries Ltd Air electrodes

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2124458A1 (en) * 1971-02-03 1972-09-22 Kureha Chemical Ind Co Ltd

Also Published As

Publication number Publication date
GB2023916A (en) 1980-01-03
DE2924669A1 (en) 1980-01-03
IT7868442A0 (en) 1978-06-20
JPS553197A (en) 1980-01-10
IT1111479B (en) 1986-01-13
DE2924669C2 (en) 1982-09-02
GB2023916B (en) 1983-02-02
FR2429501B1 (en) 1984-04-06

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Legal Events

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