Title:
PERFLUOROPOLYMER, LIQUID COMPOSITION, SOLID POLYMER ELECTROLYTE MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY, AND SOLID POLYMER WATER ELECTROLYSIS DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/116651
Kind Code:
A1
Abstract:
This perfluoropolymer enables manufacturing an electrolyte membrane with excellent mechanical strength in high temperature environments; this liquid composition, solid polymer electrolyte membrane, membrane electrode assembly, and solid polymer water electrolysis device are obtained using said perfluoropolymer. The perfluoropolymer contains perfluoro monomer units, contains substantially no units having a halogen atom other than fluorine atoms, contains substantially no units having a ring structure, and has an acid-type sulfonic acid group. The perfluoro monomer units include at least one type of unit A selected from the group consisting of perfluorovinyl ether units and perfluoroallyl ether units, and the perfluoropolymer is a dry resin with a 0.9-1.4 milliequivalent/gram ion exchange capacity and has a 100 MPa or higher storage modulus at 120°C.
Inventors:
HIRAI TAKESHI (JP)
JOMUTA DAISUKE (JP)
TAMITSUJI CHIKAYA (JP)
JOMUTA DAISUKE (JP)
TAMITSUJI CHIKAYA (JP)
Application Number:
PCT/JP2019/047943
Publication Date:
June 11, 2020
Filing Date:
December 06, 2019
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
C08F8/12; C08F16/30; H01B1/06; H01B1/12; H01M8/10; H01M8/1039; H01M8/1067
Domestic Patent References:
| WO2007013533A1 | 2007-02-01 | |||
| WO2018012374A1 | 2018-01-18 | |||
| WO2017221840A1 | 2017-12-28 | |||
| WO2019045064A1 | 2019-03-07 |
Foreign References:
| JP2005082749A | 2005-03-31 | |||
| JPH01021687A | ||||
| JP4997968B2 | 2012-08-15 | |||
| JP5454592B2 | 2014-03-26 | |||
| JP2001176524A | 2001-06-29 | |||
| JP2018230213A | 2018-12-07 | |||
| JP2019036638A | 2019-03-07 |
Other References:
See also references of EP 3892644A4
Attorney, Agent or Firm:
T.S. PARTNERS et al. (JP)
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