POLYPHENYLSULFONE-BASED PROTON CONDUCTING POLYMER ELECTROLYTE, PROTON CONDUCTING SOLID POLYMER ELECTROLYTE MEMBRANE, ELECTRODE CATALYST LAYER FOR SOLID POLYMER FUEL CELLS, METHOD FOR PRODUCING ELECTRODE CATALYST LAYER FOR SOLID POLYMER FUEL CELLS, AND FUEL CELL

Title:

Document Type and Number:

WIPO Patent Application WO/2017/029967

Kind Code:

A1

Abstract:

The present invention addresses the problem of providing a crosslinked film and a hydrocarbon-based proton conducting solid electrolyte having a proton conductivity equal to that of a perfluorosulfonate ion exchange polymer. Disclosed as a means for solving this problem is a proton conducting polymer electrolyte which is composed of a sulfonated polyphenyl compound having a plurality of repeating units, and wherein two or more (for example, four or six) sulfonic groups are introduced into one repeating unit on average. The sulfonated polyphenyl compound may be a polymer or copolymer having a skeleton structure selected from among a polyaryl sulfide, a polyaryl ether, a polyarylsulfone, a polyarylketone and a polyaryl hexafluoroisopropylidene. A proton conducting solid polymer electrolyte membrane is able to be produced by shaping this proton conducting polymer electrolyte into a film form and crosslinking this proton conducting polymer electrolyte via sulfonic groups.

Inventors:

KIM JEDEOK (JP)
ZHANG YAOJIAN (JP)

Application Number:

PCT/JP2016/072350

Publication Date:

February 23, 2017

Filing Date:

July 29, 2016

Export Citation:

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Assignee:

NAT INST FOR MATERIALS SCIENCE (JP)

International Classes:

H01M8/02; C08G65/38; C08G75/23; H01B1/06; H01B13/00; H01M4/86; H01M4/88; H01M8/10

Domestic Patent References:

WO2010116867A1

2010-10-14

Foreign References:

JP2003147074A	2003-05-21
JP2008037896A	2008-02-21
JP2003031232A	2003-01-31
JP2007084786A	2007-04-05
JP2004509224A	2004-03-25
JP2004158260A	2004-06-03
JP2004238424A	2004-08-26
JPH1167224A	1999-03-09

Other References: