The effects of compression and gas diffusion layers on the performance of a PEM fuel cell

被引：331

作者：

Lee, WK

Ho, CH

Van Zee, JW ^{[1
]}

Murthy, M

机构：

[1] Univ S Carolina, Dept Chem Engn, Columbia, SC 29208 USA

[2] WL Gore & Associates, Elkton, MD 21922 USA

来源：

JOURNAL OF POWER SOURCES | 1999年 / 84卷 / 01期

基金：

美国国家科学基金会;

关键词：

PEM fuel cell; clamp pressure; gas diffusion layers;

D O I：

10.1016/S0378-7753(99)00298-0

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：

Changes in the performance of a PEM fuel cell are presented as a function of the compression pressure resulting from torque on the bolts that clamp the fuel cell. Three types of gas diffusion layers were studied at 202 kPa and 353 degrees K. An optimum bolt torque was observed when ELAT(R) or a combination of CARBEL(R) and TORAY(TM) gas diffusion media were used as diffusion layers. The optimum is related to the gasket thickness and the measured compression pressure on the diffusion layer. The performance changes may also be related to changes in the porosity, the electrical contact resistance, and the excluded water at the membrane. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：45 / 51

页数：7

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