Electrical contact resistance between stainless steel bipolar plate and carbon felt in PEFC: A comprehensive study

被引：70

作者：

Andre, Johan ^{[1
]}

Antoni, Laurent ^{[1
]}

Petit, Jean-Pierre ^{[2
]}

De Vito, Eric ^{[1
]}

Montani, Alexandre ^{[1
]}

机构：

[1] CEA LITEN DTH Grenoble, F-38054 Grenoble 9, France

[2] UJF, INPG, UMR CNRS, ENSEEG,LEPMI, F-38402 St Martin Dheres, France

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2009年 / 34卷 / 07期

关键词：

Bipolar plate; Contact resistance; Stainless steel; PEFC; XPS; Ageing; MEMBRANE FUEL-CELL; PASSIVE FILMS; CORROSION-RESISTANCE; PEMFC; DESIGN; ALLOY; ENVIRONMENT; ELECTRODE;

D O I：

10.1016/j.ijhydene.2009.01.089

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：

Bipolar plate represents a key component of Proton Exchange Membrane Fuel Cell (PEFC) with several essential functions, among them the electric connection of elementary cells. Usually made of graphite, this component is studied worldwide in order to develop a commercially viable alternative: different ways have been being investigated, and to date, despite corrosion issues, stainless steel (SS) appears as a good candidate material, but its Electrical Contact Resistance (ECR) can reach unacceptable values when exposed to PEFC environment. This paper offers a comprehensive study of the parameters acting on ECR when using uncoated SS in PEFC: roughness, which influences the surface contact area with carbon baking, bulk composition of the alloy, which influences only partly the nature of passive films, and the composition and structure of passive films, strongly modified by surface treatments and ageing conditions. (C) 2009 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：3125 / 3133

页数：9

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