Effect of through-plane polytetrafluoroethylene distribution in gas diffusion layers on performance of proton exchange membrane fuel cells

被引：44

作者：

Ito, Hiroshi ^{[1
]}

Iwamura, Takuya ^{[1
]}

Someya, Satoshi ^{[1
]}

Munakata, Tetsuo ^{[1
]}

Nakano, Akihiro ^{[1
]}

Heo, Yun ^{[2
]}

Ishida, Masayoshi ^{[2
]}

Nakajima, Hironori ^{[3
]}

Kitahara, Tatsumi ^{[3
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Res Inst Energy Conservat, 1-2-1 Namiki, Tsukuba, Ibaraki 3058564, Japan

[2] Univ Tsukuba, Dept Engn Mech & Energy, 1-1-1 Tennoudai, Tsukuba, Ibaraki 3058573, Japan

[3] Kyushu Univ, Dept Mech Engn, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan

来源：

JOURNAL OF POWER SOURCES | 2016年 / 306卷

基金：

日本科学技术振兴机构;

关键词：

Proton exchange membrane fuel cell; Gas diffusion layer; PTFE distribution; Water breakthrough pressure; Contact angle; MICRO-POROUS LAYER; HYDROPHOBIC POLYMER CONTENT; COMPOSITE CARBON-BLACK; MICROPOROUS LAYER; WATER DISTRIBUTION; PEMFC; TRANSPORT; BREAKTHROUGH; MANAGEMENT; THICKNESS;

D O I：

10.1016/j.jpowsour.2015.12.020

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：

This experimental study identifies the effect of through-plane polytetrafluoroethylene (PTFE) distribution in gas diffusion backing (GDB) on the performance of proton exchange membrane fuel cells (PEMFC). PTFE-drying under vacuum pressure created a relatively uniform PTFE distribution in GDB compared to drying under atmospheric pressure. Carbon paper samples with different PTFE distributions due to the difference in drying conditions were prepared and used for the cathode gas diffusion layer (GDL) of PEMFCs. Also investigated is the effect of MPL application on the performance for those samples. The current density (i) - voltage (V) characteristics of these PEMFCs measured under high relative humidity conditions clearly showed that, with or without MPL, the cell using the GDL with PTFE dried under vacuum condition showed better performance than that dried under atmospheric condition. It is suggested that this improved performance is caused by the efficient transport of liquid water through the GDB due to the uniform distribution of PTFE. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：289 / 299

页数：11

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