Development of novel self-humidifying composite membranes for fuel cells

被引：138

作者：

Liu, FQ ^{[1
]}

Yi, BL ^{[1
]}

Xing, DM ^{[1
]}

Yu, JR ^{[1
]}

Hou, ZJ ^{[1
]}

Fu, YZ ^{[1
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell R&D Ctr, Dalian 116023, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2003年 / 124卷 / 01期

关键词：

PTFE; nation; proton exchange membrane; impedance; self-humidification;

D O I：

10.1016/S0378-7753(03)00616-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel preparation method for self-humidifying membranes of proton exchange membrane fuel cells (PEMFCs) was developed. Using solution-cast method, PTFE porous substrates in these composite membranes can increase their strength and distribute self-humidifying layers adjacent to the anode side. Compared with the cells fabricated with ordinary membranes, the performance of the cells with these self-humidifying proton exchange membranes (PEMs) are dramatically improved in both cell voltage and the current density under dry conditions, and the cell using the Pt/C-PEM shows the best and most stable performance. EIS technique revealed that these self-humidifying composite membranes could minimize membrane conductivity loss under dry conditions. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：81 / 89

页数：9

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