MX9706504A - Electrodos de difusion de gas a base de mezclas de fluoruro de poli(vinilideno) de carbono. - Google Patents

Electrodos de difusion de gas a base de mezclas de fluoruro de poli(vinilideno) de carbono.

Info

Publication number
MX9706504A
MX9706504A MX9706504A MX9706504A MX9706504A MX 9706504 A MX9706504 A MX 9706504A MX 9706504 A MX9706504 A MX 9706504A MX 9706504 A MX9706504 A MX 9706504A MX 9706504 A MX9706504 A MX 9706504A
Authority
MX
Mexico
Prior art keywords
gas diffusion
gas
poly
diffusion layer
layer
Prior art date
Application number
MX9706504A
Other languages
English (en)
Other versions
MXPA97006504A (es
Inventor
Israel Cabasso
Youxin Yuan
Xiao Xu
Original Assignee
Univ New York
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 Univ New York filed Critical Univ New York
Publication of MX9706504A publication Critical patent/MX9706504A/es
Publication of MXPA97006504A publication Critical patent/MXPA97006504A/es

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
    • H01M4/8825—Methods for deposition of the catalytic active composition
    • H01M4/8828—Coating with slurry or ink
    • 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
    • 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
    • H01M8/10—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
    • H01M2300/00—Electrolytes
    • H01M2300/0017—Non-aqueous electrolytes
    • H01M2300/0065—Solid electrolytes
    • H01M2300/0082—Organic polymers
    • 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

Abstract

Se describen electrodos de difusion de gas electrocatalítico para células energética y un procedimiento para su preparacion. El electrodo comprende una capa de difusion de gas anisotropica y una capa catalítica. La capa de difusion de gas se hace de una matriz de carbono porosa a través de la cual se distribuyen partículas de carbono y fluoruro de poli(vinilideno), de manera que la matriz es homogéneamente porosa en una direccion lateral al flujo de gas y asimétricamente porosa a los gases en la direccion del flujo de gas. La porosidad de la capa de difusion de gas se reduce en la direccion del flujo de gas. La capa catalítica se hace de una suspension de tinta coagulada que contiene partículas de carbono catalítico y un polímero termoplástico seleccionado de polietérsulfona, fluoruro de poli(vinilideno) y polisulfona sulfonada de gas. La capa de difusion de gas tiene un espesor de entre 50 æm y 300 æm. La capa catalítica tiene un espesor de entre 7 æm y 50 æm y una carga de catalizador de entre 0.2 mg/cm² y 0.5 mg/cm².
MXPA/A/1997/006504A 1996-08-27 1997-08-26 Electrodos de difusion de gas a base de mezclas de fluoruro de poli(vinilideno) de carbono MXPA97006504A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/697,582 US5783325A (en) 1996-08-27 1996-08-27 Gas diffusion electrodes based on poly(vinylidene fluoride) carbon blends
US08697582 1996-08-27

Publications (2)

Publication Number Publication Date
MX9706504A true MX9706504A (es) 1998-05-31
MXPA97006504A MXPA97006504A (es) 1998-10-23

Family

ID=

Also Published As

Publication number Publication date
TW398097B (en) 2000-07-11
CA2213964A1 (en) 1998-02-27
GB2316801B (en) 1999-07-14
ID18125A (id) 1998-03-05
BR9704488A (pt) 1998-12-29
JPH1092440A (ja) 1998-04-10
ITTO970758A1 (it) 1999-02-26
FR2755541A1 (fr) 1998-05-07
GB9718152D0 (en) 1997-10-29
US5783325A (en) 1998-07-21
IT1293985B1 (it) 1999-03-15
DE19737390A1 (de) 1998-03-12
GB2316801A (en) 1998-03-04

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Legal Events

Date Code Title Description
FA Abandonment or withdrawal