Magnetic resonance imaging of the water distribution within a polymer electrolyte membrane in fuel cells

被引：167

作者：

Tsushima, S ^{[1
]}

Teranishi, K ^{[1
]}

Hirai, S ^{[1
]}

机构：

[1] Tokyo Inst Technol, Res Ctr Carbon Recycling & Energy, Meguro Ku, Tokyo 1528552, Japan

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2004年 / 7卷 / 09期

关键词：

D O I：

10.1149/1.1774971

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Magnetic resonance imaging (MRI) to measure the spatial distribution of the water content within a polymer electrolyte membrane (PEM) under fuel cell operation is described. By designing and building a fuel cell that can operate in an MRI system and making measurements during the cell operation, the water concentration gradient in the PEM and the overall water content decreased with an increase of the cell current. Furthermore, the water content in the anode side of the PEM decreased significantly within 200 s of the cell start-up, and this caused a similarly rapid decrease of the cell voltage. (C) 2004 The Electrochemical Society.

引用

页码：A269 / A272

页数：4

共 14 条

[1] Analysis of performance losses in polymer electrolyte fuel cells at high current densities by impedance spectroscopy [J].