An overview of cracks and interfacial voids in membrane electrode assemblies in polymer electrolyte fuel cells

被引：17

作者：

Tsushima, Shohji ^{[1
]}

Hirai, Shuichiro ^{[2
]}

机构：

[1] Osaka Univ, Dept Mech Engn, Suita, Osaka 5650871, Japan

[2] Tokyo Inst Technol, Dept Mech & Control Engn, Meguro Ku, Tokyo 1528552, Japan

来源：

JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY | 2015年 / 10卷 / 01期

关键词：

Fuel cell; Polymer electrolyte membrane; Mass transport; Crack; Interfacial void; Characterization; X-ray visualization; Fabrication; Degradation; Numerical simulation; MICRO-POROUS LAYER; LIQUID WATER TRANSPORT; GAS-DIFFUSION MEDIA; MICROPOROUS LAYER; CATALYST LAYER; DEGRADATION; MODEL; MICROSTRUCTURE; IMPROVEMENT; DURABILITY;

D O I：

10.1299/jtst.2015jtst0002

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this review, an overview of cracks and interfacial voids formed in membrane electrode assemblies in polymer electrolyte fuel cells is presented. State-of-the-art of findings on formation processes of the cracks and the voids are described together with recent advances on development of characterization and diagnostic tools. The drawbacks and potentials of the cracks and the interfacial voids in the MEAs are also discussed. The cracks and the voids possibly deteriorate cell performance due to less electrical contact in the MEAs. On the other hand, the cracks can enhance the liquid and the gas transport in the MEAs that is better for PEFCs. Finally, future perspecitves and remaining challenges concerned with the cracks and the interfacial voids are addressed.

引用

页数：12

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