CA2391501A1 - Structures de cathode ameliorees pour cellules electrochimiques a alimentation liquide directe - Google Patents

Structures de cathode ameliorees pour cellules electrochimiques a alimentation liquide directe Download PDF

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Publication number
CA2391501A1
CA2391501A1 CA002391501A CA2391501A CA2391501A1 CA 2391501 A1 CA2391501 A1 CA 2391501A1 CA 002391501 A CA002391501 A CA 002391501A CA 2391501 A CA2391501 A CA 2391501A CA 2391501 A1 CA2391501 A1 CA 2391501A1
Authority
CA
Canada
Prior art keywords
cathode
substrate
liquid feed
solid polymer
hydrophobic additive
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.)
Abandoned
Application number
CA002391501A
Other languages
English (en)
Inventor
Regina Wezel
Susanne Will
Jens Muller
Peter Urban
Kevin M. Colbow
Linda Reynard
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
Publication of CA2391501A1 publication Critical patent/CA2391501A1/fr
Abandoned legal-status Critical Current

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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
    • H01M4/90—Selection of catalytic material
    • H01M4/92—Metals of platinum group
    • H01M4/928—Unsupported catalytic particles; loose particulate catalytic materials, e.g. in fluidised state
    • 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
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/8663—Selection of inactive substances as ingredients for catalytic active masses, e.g. binders, fillers
    • H01M4/8668—Binders
    • 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
    • H01M4/8825—Methods for deposition of the catalytic active composition
    • H01M4/886—Powder spraying, e.g. wet or dry powder spraying, plasma spraying
    • 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
    • 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
    • H01M4/96—Carbon-based electrodes
    • 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
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
    • 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
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04186—Arrangements for control of reactant parameters, e.g. pressure or concentration of liquid-charged or electrolyte-charged reactants
    • 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
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
    • 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
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1009—Fuel cells with solid electrolytes with one of the reactants being liquid, solid or liquid-charged
    • 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
    • H01M2004/8678—Inert electrodes with catalytic activity, e.g. for fuel cells characterised by the polarity
    • H01M2004/8689—Positive electrodes
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Materials Engineering (AREA)
  • Inert Electrodes (AREA)
  • Fuel Cell (AREA)

Abstract

L'invention concerne des cellules électrochimiques à polymère solide, à alimentation liquide directe par un flux de combustible liquide comprenant généralement un mélange de combustible et de quantité substantielle d'eau (par exemple, cellules électrochimiques à alimentation directe en méthanol liquide). Néanmoins, le flux oxydant fourni à la cellule électrochimique est généralement gazeux (par exemple, air) comme c'est habituellement le cas pour les cellules électrochimiques à polymère solide à alimentation gazeuse. S'agissant des cellules à alimentation liquide, une plus grande quantité d'eau se diffuse généralement depuis côté anode vers le côté cathode, ce qui affecte la gestion de l'eau à la cathode. On utilise de préférence une structure de cathode différente à quantité inférieure d'additif hydrophobe dans le substrat de cathode pour les cellules électrochimiques à alimentation liquide. De plus, il est possible d'utiliser une cathode plus mince sans nuire aux performances de la cellule électrochimique, en combinant un support carboné plus mince dans le substrat de cathode et une sous-couche à base de carbone entre le substrat de cathode et la couche électrocatalytique.
CA002391501A 1999-11-23 2000-11-07 Structures de cathode ameliorees pour cellules electrochimiques a alimentation liquide directe Abandoned CA2391501A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US44807499A 1999-11-23 1999-11-23
US09/448,074 1999-11-23
PCT/CA2000/001309 WO2001039300A2 (fr) 1999-11-23 2000-11-07 Structures de cathode ameliorees pour cellules electrochimiques a alimentation liquide directe

Publications (1)

Publication Number Publication Date
CA2391501A1 true CA2391501A1 (fr) 2001-05-31

Family

ID=23778908

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002391501A Abandoned CA2391501A1 (fr) 1999-11-23 2000-11-07 Structures de cathode ameliorees pour cellules electrochimiques a alimentation liquide directe

Country Status (4)

Country Link
AU (1) AU1261301A (fr)
CA (1) CA2391501A1 (fr)
DE (1) DE10085221T1 (fr)
WO (1) WO2001039300A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6994932B2 (en) 2001-06-28 2006-02-07 Foamex L.P. Liquid fuel reservoir for fuel cells
WO2004027243A2 (fr) 2002-09-18 2004-04-01 Foamex L.P. Reservoir de combustible liquide a orientation independante
CN103623864A (zh) * 2013-11-25 2014-03-12 天津大学 直接液流甲醇燃料电池Pt基阳极催化剂的制备方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4229490A (en) * 1978-09-01 1980-10-21 Texas Instruments Incorporated Novel method for catalyst application to a substrate for fuel cell electrodes
US5084144A (en) * 1990-07-31 1992-01-28 Physical Sciences Inc. High utilization supported catalytic metal-containing gas-diffusion electrode, process for making it, and cells utilizing it
US5773162A (en) * 1993-10-12 1998-06-30 California Institute Of Technology Direct methanol feed fuel cell and system
US5523177A (en) * 1994-10-12 1996-06-04 Giner, Inc. Membrane-electrode assembly for a direct methanol fuel cell
US5945231A (en) * 1996-03-26 1999-08-31 California Institute Of Technology Direct liquid-feed fuel cell with membrane electrolyte and manufacturing thereof

Also Published As

Publication number Publication date
AU1261301A (en) 2001-06-04
DE10085221T1 (de) 2002-11-07
WO2001039300A2 (fr) 2001-05-31
WO2001039300A3 (fr) 2003-02-20

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Legal Events

Date Code Title Description
FZDE Discontinued