公开(公告)号：US20240030473A1

公开(公告)日：2024-01-25

申请号：US18374025

申请日：2023-09-28

Applicant: AGC INC.

Inventor： Satoshi MATSUSHITA ,  Takumi OKUYAMA ,  Susumu SAITO

IPC: H01M8/1039 ,  C08F214/26 ,  C08J5/22 ,  H01M8/1004

CPC classification number: H01M8/1039 ,  C08F214/262 ,  C08J5/2237 ,  H01M8/1004 ,  C08J2327/22 ,  C08F2810/50 ,  H01M2008/1095

Abstract: The present invention provides an electrolyte material which can form crack-resistant catalyst layers when used in membrane electrode assemblies and enables provision of fuel cells having good power generation characteristics, a membrane electrode assembly and a polymer electrolyte fuel cell. The electrolyte material of the present invention is made of a polymer having ion exchange groups comprising units based on tetrafluoroethylene, units having an ion exchange group and no cyclic ether structure, units having a cyclic ether structure and units based on a monomer having at least two polymerizable unsaturated bonds.