Study on PEFC Gas Diffusion Layer with Designed Wettability Pattern Tolerant to Flooding

被引：4

作者：

Sakaida, S. ^{[1
]}

Tabe, Y. ^{[2
]}

Chikahisa, T. ^{[2
]}

Tanaka, K. ^{[1
]}

Konno, M. ^{[1
]}

机构：

[1] Ibaraki Univ, Grad Sch Sci & Engn, Mech Syst Engn, 4-12-1 Nakanarusawa, Hitachi, Ibaraki 3168511, Japan

[2] Hokkaido Univ, Div Energy & Environm Syst, Kita Ku, N13 W8, Sapporo, Hokkaido 0608628, Japan

来源：

POLYMER ELECTROLYTE FUEL CELLS AND ELECTROLYZERS 18 (PEFC&E 18) | 2018年 / 86卷 / 13期

关键词：

ADVANCED WATER MANAGEMENT; FUEL-CELLS;

D O I：

10.1149/08613.0111ecst

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The optimal structure of the gas diffusion layers (GDL) with the linear wettability pattern perpendicular to the rib in a polymer electrolyte fuel cell (PEFC) was investigated to improve the water discharge characteristic from the GDL under rib. The wettability and the width of the pattern were focused on and the suitable design was investigated by the lattice Boltzmann method (LBM). The result showed that the water discharge is the most efficient when the hydrophobic pattern was applied with the super hydrophobic GDL. The water discharge characteristic of the GDL with the hydrophilic pattern was worse because the water was wicked into the pores in the pattern and the water was not discharged from the pattern. The simulation result also clarified that it is necessary to make the width larger than the pore diameter of the GDL to control the water transport in the GDL.

引用

页码：111 / 118

页数：8

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