Title:
POLYMER ELECTROLYTE, METHOD FOR PRODUCING SAME, POLYMER ELECTROLYTE MEMBRANE USING SAME, CATALYST LAYER, MEMBRANE/ELECTRODE ASSEMBLY AND FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2020/017113
Kind Code:
A1
Abstract:
The present invention relates to a polymer electrolyte which is composed of a hydrophobic segment that has a structure represented by general formula (1) and a hydrophilic segment that has a sulfonic acid group, while having the main chain mainly composed of aromatic rings, and which is configured such that the hydrophobic segment and the hydrophilic segment are joined to each other by means of direct bonds of the aromatic rings. (In general formula (1), each of Ra and Rb independently represents a fluorine atom or a perfluoroalkyl group; y represents an integer of 1-2,000; and a hydrogen atom on a benzene ring may be substituted by a fluorine atom, an alkyl group, a perfluoroalkyl group, an aryl group, an aralkyl group or a cyano group.) Consequently, the present invention provides: a polymer electrolyte which achieves high proton conductivity, while having high oxidation degradation resistance and gas barrier properties, and which is suitable for use as a polymer electrolyte membrane and is able to be easily produced, while exhibiting good solubility in solvents and excellent formability such as film forming properties; a method for producing this polymer electrolyte; a polymer electrolyte membrane; a catalyst layer; a membrane/electrode assembly; and a fuel cell.
Inventors:
MIYATAKE KENJI (JP)
UCHIDA MAKOTO (JP)
MIYAKE JUNPEI (JP)
AHN JINJU (JP)
KUSAKABE MASATO (JP)
UCHIDA MAKOTO (JP)
MIYAKE JUNPEI (JP)
AHN JINJU (JP)
KUSAKABE MASATO (JP)
Application Number:
PCT/JP2019/015658
Publication Date:
January 23, 2020
Filing Date:
April 10, 2019
Export Citation:
Assignee:
UNIV YAMANASHI (JP)
KANEKA CORP (JP)
KANEKA CORP (JP)
International Classes:
C08G61/02; H01B1/06; H01B13/00; H01M8/10; H01M8/1023; H01M8/1039; H01M8/1072
Foreign References:
| US20130108944A1 | 2013-05-02 | |||
| JP2017179345A | 2017-10-05 | |||
| JP2015214617A | 2015-12-03 | |||
| JP2007213937A | 2007-08-23 | |||
| JP2007213936A | 2007-08-23 | |||
| JP2006032182A | 2006-02-02 |
Other References:
ZHANG, YAOJIAN ET AL.: "Sulfonated Phenylene/Quinquephenylene/Perfluoroalkylene Terpolymers as Proton Exchange Membranes for Fuel Cells", ACS APPLIED ENERGY MATERIALS, vol. 1, no. 3, 16 February 2018 (2018-02-16), pages 1008 - 1015, XP055675725
AHN, JINJU ET AL.: "Sulfonated aromatic polymers containing hexafluoroisopropylidene groups: a simple but effective structure for fuel cell membranes", JOURNAL OF MATERIALS CHEMISTRY A, vol. 6, 15 November 2018 (2018-11-15), pages 24625 - 24632, XP055675722
AHN, JINJU ET AL.: "Sulfonated aromatic polymers containing hexafluoroisopropylidene groups: a simple but effective structure for fuel cell membranes", JOURNAL OF MATERIALS CHEMISTRY A, vol. 6, 15 November 2018 (2018-11-15), pages 24625 - 24632, XP055675722
Attorney, Agent or Firm:
IKEUCHI & PARTNERS (JP)
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