Dependence of current distribution on water management in PEFC of technical size

被引：76

作者：

Büchi, FN

Geiger, AB

Neto, RP

机构：

[1] Paul Scherrer Inst, Electrochem Lab, CH-5232 Villigen, Switzerland

[2] Univ Tecn Lisboa, Inst Super Tecn, P-1049001 Lisbon, Portugal

来源：

JOURNAL OF POWER SOURCES | 2005年 / 145卷 / 01期

关键词：

polymer electrolyte fuel cells; local current measurements; water management; humidification;

D O I：

10.1016/j.jpowsour.2004.12.039

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：

Measuring local currents in PE-fuel cells is an important tool for diagnostics and development. A semi-segmented cell has been developed, which can serve as a key instrument to investigate different phenomena in cells and stacks of technical relevance. Data with respect to water management is presented. These results show, that the local current distribution is strongly influenced by the dew point of the process air, the stoichiometry of the process air and the mode of operation. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：62 / 67

页数：6

共 6 条

[1] A printed circuit board approach to measuring current distribution in a fuel cell [J].