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Fabricating method of gas diffusion electrode for fuel cell. Nenryo denchiyo gas kakusan denkyoku no seizo hoho

Abstract

Cation exchange film is pressure bonded by hot-pressing on an aluminium foil for the solid high polymer electrolyte fuel cell which uses the cation exchange film as the electrolyte (PEMFC), but the conditions for the hot-pressing are severe because the softening temperature of polytetrafluoroethylene used as the binder for the bonding is higher than that of the cation exchange film. This invention is concerned with a method of improving adhesion and binding between the cation exchange film surface and the electrode catalyst layer, wherein K or Na type perfluorosulfonic acid system copolymer of the same material as that used for the cation exchange film is used as the binder in preparing the electrode catalyst layer of PEMFC, and the softening temperature of the cation exchange film itself is increased to enable high temperature hot-pressing. It is desirable to use the cation exchange film with the dry film thickness from 50 to 150[mu] and ion exchange capacity from 0.83 to 1.43 milli-equivalent/g (dry resin). 1 fig.
Authors:
Harada, H [1] 
  1. Yokohama (Japan)
Publication Date:
Jan 28, 1994
Product Type:
Patent
Report Number:
JP 6-20709
Reference Number:
NEDO-94-960134; EDB-94-100836
Resource Relation:
Patent File Date: 5 Jun 1992; Patent Priority Date: 1 May 1992
Subject:
30 DIRECT ENERGY CONVERSION; BINDERS; COPOLYMERS; FLUORATES; SULFONIC ACIDS; ELECTRODES; CATALYSIS; LAYERS; SOLID ELECTROLYTE FUEL CELLS; DIFFUSION; FILMS; HOT PRESSING; ION EXCHANGE; DIRECT ENERGY CONVERTERS; ELECTROCHEMICAL CELLS; FABRICATION; FLUORINE COMPOUNDS; FUEL CELLS; HALOGEN COMPOUNDS; MATERIALS WORKING; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; ORGANIC SULFUR COMPOUNDS; OXYGEN COMPOUNDS; POLYMERS; PRESSING; 300503* - Fuel Cells- Materials, Components, & Auxiliaries
OSTI ID:
7200117
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Other: PPN: JP 4-112879
Availability:
Available from Japan Patent Information Organization of International Patent Documentation Center
Submitting Site:
NEDO
Size:
Pages: (7 p)
Announcement Date:
May 13, 2001

Citation Formats

Harada, H. Fabricating method of gas diffusion electrode for fuel cell. Nenryo denchiyo gas kakusan denkyoku no seizo hoho. Japan: N. p., 1994. Web.
Harada, H. Fabricating method of gas diffusion electrode for fuel cell. Nenryo denchiyo gas kakusan denkyoku no seizo hoho. Japan.
Harada, H. 1994. "Fabricating method of gas diffusion electrode for fuel cell. Nenryo denchiyo gas kakusan denkyoku no seizo hoho." Japan.
@misc{etde_7200117,
title = {Fabricating method of gas diffusion electrode for fuel cell. Nenryo denchiyo gas kakusan denkyoku no seizo hoho}
author = {Harada, H}
abstractNote = {Cation exchange film is pressure bonded by hot-pressing on an aluminium foil for the solid high polymer electrolyte fuel cell which uses the cation exchange film as the electrolyte (PEMFC), but the conditions for the hot-pressing are severe because the softening temperature of polytetrafluoroethylene used as the binder for the bonding is higher than that of the cation exchange film. This invention is concerned with a method of improving adhesion and binding between the cation exchange film surface and the electrode catalyst layer, wherein K or Na type perfluorosulfonic acid system copolymer of the same material as that used for the cation exchange film is used as the binder in preparing the electrode catalyst layer of PEMFC, and the softening temperature of the cation exchange film itself is increased to enable high temperature hot-pressing. It is desirable to use the cation exchange film with the dry film thickness from 50 to 150[mu] and ion exchange capacity from 0.83 to 1.43 milli-equivalent/g (dry resin). 1 fig.}
place = {Japan}
year = {1994}
month = {Jan}
}