The operation characteristics of MEAs with pinholes for polymer electrolyte membrane fuel cells

被引：14

作者：

Cho, Yong-Hun ^{[1
,2
]}

Park, Hyun-Seo ^{[1
,2
]}

Kim, Jinho ^{[1
,2
]}

Cho, Yoon-Hwan ^{[1
,2
]}

Cha, Suk Won ^{[3
]}

Sung, Yung-Eun ^{[1
,2
]}

机构：

[1] Seoul Natl Univ, Sch Chem & Biol Engn, Seoul 151744, South Korea

[2] Seoul Natl Univ, Res Ctr Energy Convers & Storage, Seoul 151744, South Korea

[3] Seoul Natl Univ, Sch Mech & Aerosp Engn, Seoul 151744, South Korea

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2008年 / 11卷 / 08期

关键词：

D O I：

10.1149/1.2937450

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 [应用化学];

摘要：

We conducted performance tests on a polymer electrolyte membrane fuel cell containing a catalyst-coated membrane in which artificial pinholes were introduced. The membrane electrode assembly (MEA) with the punctured membrane showed similar performance behavior to an unblemished MEA in the lower current density region. However, the performance of the pinhole MEA with the punctured membrane in the higher current density region was inferior and unstable. The structures of the defective membrane and the MEA were analyzed by field-emission scanning electron microscopy, and their electrochemical characteristics were investigated by electrochemical impedance spectroscopy and single-cell testing.

引用

页码：B153 / B155

页数：3

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