Title:
液状組成物、固体高分子電解質膜、膜電極接合体、固体高分子形燃料電池
Document Type and Number:
Japanese Patent JP7322896
Kind Code:
B2
Abstract:
To provide a liquid composition capable of forming a polymer electrolyte membrane which is excellent in the initial power generation characteristics when made into a membrane electrode assembly, and which is excellent in durability and has few defects. This liquid composition comprises a liquid medium, a sulfonic acid group-containing fluorocarbon polymer and a hardly soluble cerium compound, wherein the ion exchange capacity of the sulfonic acid group-containing fluorocarbon polymer is from 1.36 to 2.50 meq/g dry resin, the average particle size of the hardly soluble cerium compound is from 1 nm to 3,000 nm, and the ratio of the total number of moles of cerium atoms in the hardly soluble cerium compound to the total number of moles of sulfonic acid groups in the sulfonic acid group-containing fluorocarbon polymer is from 0.001 to 0.3.
Inventors:
Mitsugu Saito
Takumi Okuyama
Hiroyuki Watanabe
Takumi Okuyama
Hiroyuki Watanabe
Application Number:
JP2020560075A
Publication Date:
August 08, 2023
Filing Date:
December 06, 2019
Export Citation:
Assignee:
AGC Inc.
International Classes:
C08L27/00; C08F14/18; C08K3/22; H01M8/10; H01M8/1018; H01M8/1023; H01M8/1039; H01M8/1046
Domestic Patent References:
| JP2006260811A | ||||
| JP2006107914A |
Foreign References:
| WO2013031479A1 | ||||
| WO2012046870A1 |
Attorney, Agent or Firm:
Patent Attorney Shiga International Patent Office