The electrical resistance of flexible graphite as flowfield plate in proton exchange membrane fuel cells

被引：28

作者：

Fu, Yu ^{[1
,2
]}

Hou, Ming ^{[1
]}

Liang, Dong ^{[1
,2
]}

Yan, Xiqiang ^{[3
]}

Fu, Yunfeng ^{[3
]}

Shao, Zhigang ^{[1
]}

Hou, Zhonjun ^{[3
]}

Ming, Pingwen ^{[3
]}

Yi, Baolian ^{[1
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Syst & Engn Lab, Dalian 116023, Peoples R China

[2] Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Sunrise Power Co Ltd, Dalian 116025, Peoples R China

来源：

CARBON | 2008年 / 46卷 / 01期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.carbon.2007.10.020

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：

Flexible graphite can be stamped into gas channels for proton exchange membrane fuel cells attributing to its good conductivity, corrosion resistance and flexibility. However, the electrical resistance of the bipolar plate consisting of a coated metal foil and the stamped flexible graphite flowfield plate should be investigated, for the internal resistance would affect the output power of the fuel cell greatly The influences of various parameters, such as compacting pressure, temperature, effective area of the coating and the water content of the flexible graphite on the electrical resistance were studied. The electrical resistance decreases with the increment of compacting pressure exponentially The temperature and the effective area of metal foil coating both have linear relations with the electrical resistance. And the water content of the flexible graphite has a very complex relation with the electrical resistance; it is the most important influencing factor. At last, an empirical equation for the electrical resistance, giving a good fit to the test data, was determined. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：19 / 23

页数：5

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