WO2004045005A3 - Gas diffusion electrodes - Google Patents

Gas diffusion electrodes Download PDF

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Publication number
WO2004045005A3
WO2004045005A3 PCT/US2003/033892 US0333892W WO2004045005A3 WO 2004045005 A3 WO2004045005 A3 WO 2004045005A3 US 0333892 W US0333892 W US 0333892W WO 2004045005 A3 WO2004045005 A3 WO 2004045005A3
Authority
WO
WIPO (PCT)
Prior art keywords
electrodes
polymer
electrical conductor
surfactant
shear
Prior art date
Application number
PCT/US2003/033892
Other languages
French (fr)
Other versions
WO2004045005A2 (en
Inventor
Beth C Munoz
Gilbert J Kepner
Mark A Preveti
Xiaomei Xi
Original Assignee
Metallic Power Inc
Beth C Munoz
Gilbert J Kepner
Mark A Preveti
Xiaomei Xi
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 Metallic Power Inc, Beth C Munoz, Gilbert J Kepner, Mark A Preveti, Xiaomei Xi filed Critical Metallic Power Inc
Priority to AU2003284939A priority Critical patent/AU2003284939A1/en
Publication of WO2004045005A2 publication Critical patent/WO2004045005A2/en
Publication of WO2004045005A3 publication Critical patent/WO2004045005A3/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
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/8605—Porous electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M12/00—Hybrid cells; Manufacture thereof
    • H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
    • H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
    • 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
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/043—Processes of manufacture in general involving compressing or compaction
    • H01M4/0433—Molding
    • 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
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/043—Processes of manufacture in general involving compressing or compaction
    • H01M4/0435—Rolling or calendering
    • 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
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/06—Electrodes for primary 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
    • H01M4/8875—Methods for shaping the electrode into free-standing bodies, like sheets, films or grids, e.g. moulding, hot-pressing, casting without support, extrusion without support
    • 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
    • H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
    • H01M4/8896—Pressing, rolling, calendering
    • 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
    • H01M4/90—Selection of catalytic material
    • H01M4/92—Metals of platinum group
    • H01M4/925—Metals of platinum group supported on carriers, e.g. powder carriers
    • H01M4/926—Metals of platinum group supported on carriers, e.g. powder carriers on carbon or graphite

Abstract

Electrode compositions can be formed comprising a fibrillatable polymer, a particulate electrical conductor a surfactant and a liquid. Corresponding methods apply shear to fibrillate the polymer, in which the surfactant facilitates the processing such that the resulting electrodes have desirable properties. The shear can be applied in an extrusion process and/or calendering process. These improved processing approaches can be used to form large commercial electrodes with a high degree of thickness uniformity. In some embodiments, the electrode compositions comprise a fibrillatable polymer, a particulate electrical conductor and a non-carbon friction reducing agent within a gas permeable structure. Molding processes can be used for forming the electrodes.
PCT/US2003/033892 2002-11-05 2003-10-24 Gas diffusion electrodes WO2004045005A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003284939A AU2003284939A1 (en) 2002-11-05 2003-10-24 Gas diffusion electrodes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/288,392 2002-11-05
US10/288,392 US20040086774A1 (en) 2002-11-05 2002-11-05 Gas diffusion electrodes

Publications (2)

Publication Number Publication Date
WO2004045005A2 WO2004045005A2 (en) 2004-05-27
WO2004045005A3 true WO2004045005A3 (en) 2004-09-16

Family

ID=32175906

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/033892 WO2004045005A2 (en) 2002-11-05 2003-10-24 Gas diffusion electrodes

Country Status (3)

Country Link
US (1) US20040086774A1 (en)
AU (1) AU2003284939A1 (en)
WO (1) WO2004045005A2 (en)

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US20110236798A1 (en) * 2010-02-12 2011-09-29 Revolt Technology Ltd. Manufacturing methods for air electrode
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JP6029990B2 (en) * 2012-02-08 2016-11-24 日東電工株式会社 Thermally conductive sheet
WO2014007397A1 (en) * 2012-07-06 2014-01-09 ダイキン工業株式会社 Sheet, electrode and fuel cell
KR102342275B1 (en) 2014-04-18 2021-12-22 맥스웰 테크놀러지스 인코포레이티드 Dry energy storage device electrode and methods of making the same
US10596526B2 (en) 2015-04-24 2020-03-24 United Technologies Corporation Ion-exchange membrane with molecular barrier
KR101936339B1 (en) * 2015-08-31 2019-04-03 주식회사 엘지화학 Device for Manufacturing Electrode for Secondary Battery Comprising Mold for Providing Electrode Mix Layer
EP3383532A1 (en) * 2015-12-01 2018-10-10 Tubitak Method for fast shaping carbon supported metal catalyst powders into flexible plates via subsequent cold and hot compression moulding
US10847780B2 (en) * 2016-09-16 2020-11-24 Pacesetter, Inc. Battery electrode and methods of making
KR102261501B1 (en) * 2017-09-29 2021-06-07 주식회사 엘지에너지솔루션 Method for Electrode Mixture and Electrode Mixture
CN108645895B (en) * 2018-06-01 2020-12-29 中国石油大学(华东) Preparation method of porphyrin modified perovskite nano particles and gas sensor thereof
CN108963272B (en) * 2018-06-15 2021-04-06 湖南科技大学 Rapid additive forming manufacturing device for direct methanol fuel cell metal polar plate
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Also Published As

Publication number Publication date
AU2003284939A1 (en) 2004-06-03
AU2003284939A8 (en) 2004-06-03
US20040086774A1 (en) 2004-05-06
WO2004045005A2 (en) 2004-05-27

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