Properties of the reinforced composite membranes formed by melt soluble ion conducting polymer resins for PEMFCs

被引：29

作者：

Ahn, SY

Lee, YC

Ha, HY

Hong, SA

Oh, IH ^{[1
]}

机构：

[1] Korea Inst Sci & Technol, Fuel Cell Res Ctr, Seoul 136791, South Korea

[2] Sungkyunkwan Univ, Dept Chem Engn, Suwon 440746, South Korea

来源：

ELECTROCHIMICA ACTA | 2004年 / 50卷 / 2-3期

关键词：

PEMFC; ion exchange precursor resin; porous expanded PTFE; reinforced composite membrane; hot pressing;

D O I：

10.1016/j.electacta.2004.01.133

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We have developed a fabrication method of reinforced composite membranes having a thickness of ca. 30 mum for use in PEMFCs. The reinforced composite membrane (RCM) was prepared by placing a pair of films of perfluorosulfonyl fluoride resin (equivalent weight = 1000, -SO2F) on both side of microporous expanded PTFE (ePTFE) sheet followed by hot-pressing and its electrochemical, hydrolytic and mechanical properties were measured and compared with those of homogeneous resin membrane (EW = 1000) made of perfluorosulfonyl fluoride resin and Nafion 115((R)) (EW = 1100) membrane. While mechanical and hydrolytic properties of the RCM were higher than those of resin membrane, but still lower than those of Nafion 115((R)) membrane. Ionic conductance of the RCM, however, was about 2.5 times higher than that of Nalion 115((R)), due to a low thickness and EW of RCM. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：571 / 575

页数：5

共 7 条

[1]

Banerjee S., 2000, U.S. Patent, Patent No. [6,156,451, 6156451]

[2] THE MORPHOLOGY IN NAFION PERFLUORINATED MEMBRANE PRODUCTS, AS DETERMINED BY WIDE-ANGLE AND SMALL-ANGLE X-RAY STUDIES [J].