Membrane-electrode assembly for solid polymer electrolyte fuel cell
申请人:Honda Motor Co., Ltd.
公开号:US08273499B2
公开(公告)日:2012-09-25
A membrane-electrode assembly for a solid polymer electrolyte fuel cell is provided that uses a proton conductive membrane having high proton conductivity and also superior heat resistance and chemical durability. A membrane-electrode assembly for a solid polymer electrolyte fuel cell is provided with an anode on one side of a proton conductive membrane and a cathode on another side thereof, and the proton conductive membrane is a sulfonated polyarylene containing a structure expressed by the general formula (1) below:
—Rs—Z—Rh (1)
In the formula (1), Z represents at least one structure selected from the group consisting of —CO—, —SO2—, and —SO—; Rs represents a direct bond or any divalent organic group; and Rh represents a nitrogen-containing heterocyclic group.
POLYARYLENE BLOCK COPOLYMER HAVING SULFONIC ACID GROUP AND USE THEREOF
申请人:YAMAKAWA Yoshitaka
公开号:US20120052412A1
公开(公告)日:2012-03-01
A polyarylene copolymer having a sulfonic acid group which has high proton conductivity and reduced swelling in hot water and reduced shrinkage in drying; a solid polymer electrolyte and a proton conductive membrane comprising the copolymer; and a membrane-electrode assembly using these.
The polyarylene block copolymer comprises a polymer segment (A) having a sulfonic acid group, and a polymer segment (B) having substantially no sulfonic acid group, the polymer segment (B) having substantially no sulfonic acid group comprising a structural unit represented by the following formula (1).