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Title:
LIQUID COMPOSITION, SOLID POLYMER ELECTROLYTE MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY, AND SOLID POLYMER FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2020/116648
Kind Code:
A1
Abstract:
Provided are: a liquid composition that can be used to form a membrane having excellent durability against hydrogen peroxide or peroxide radicals, and excellent hydrogen gas barrier properties; a solid polymer electrolyte membrane; a membrane electrode assembly; and a solid polymer fuel cell. This liquid composition contains a liquid medium, an acid-type sulfonate group-containing fluorocarbon polymer having a hydrogen gas permeability coefficient of 2.5 × 10-9 cm3·cm/(s·cm2·cmHg) or less under conditions where the temperature is 80°C and the relative humidity is 10%, and cerium atoms. This solid polymer electrolyte membrane 15 contains the acid-type sulfonate group-containing fluorocarbon polymer, and cerium atoms. This membrane electrode assembly 10 is provided with an anode 13 having a catalyst layer, a cathode 14 having a catalyst layer, and the solid polymer electrolyte membrane 15 disposed between the anode 13 and the cathode 14.

Inventors:
OKUYAMA TAKUMI (JP)
HIRAI TAKESHI (JP)
SAITO SUSUMU (JP)
TAMITSUJI CHIKAYA (JP)
JOMUTA DAISUKE (JP)
Application Number:
PCT/JP2019/047938
Publication Date:
June 11, 2020
Filing Date:
December 06, 2019
Export Citation:
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Assignee:
AGC INC (JP)
International Classes:
C08F16/14; C08J5/18; C08J5/22; C08J7/14; C08K3/08; C08L27/12; H01B1/06; H01B1/12; H01M8/10; H01M8/1039; H01M8/1051; H01M8/1067
Domestic Patent References:
WO2018207325A12018-11-15
WO2015002073A12015-01-08
WO2007013533A12007-02-01
WO2019045064A12019-03-07
WO2011013578A12011-02-03
WO2017221840A12017-12-28
WO2018012374A12018-01-18
Foreign References:
JP2016105416A2016-06-09
JP2017025242A2017-02-02
JP3915846B22007-05-16
JP4810868B22011-11-09
JP5915658B22016-05-11
JP2018230215A2018-12-07
Attorney, Agent or Firm:
T.S. PARTNERS et al. (JP)
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