Analytical impedance of two-layer oxygen transport media in a PEM fuel cell

被引：3

作者：

Kulikovsky, Andrei ^{[1
]}

机构：

[1] Forschungszentrum Juelich GmbH, Theory & Computat Energy Mat IEK 13, D-52425 Julich, Germany

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2022年 / 135卷

关键词：

PEM fuel cell; impedance; GDL; MPL; modeling; ELECTROCHEMICAL IMPEDANCE; LAYER;

D O I：

10.1016/j.elecom.2021.107187

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A model for impedance of oxygen transport in two porous layers A and B (GDL and MPL) positioned between the air channel and cathode catalyst layer in a PEM fuel cell is developed. Analytical solution shows that the system transport impedance cannot be split up into a sum of separate layer A and B impedances. The two-layer system works as a unified oxygen transport media. This result suggests that in general, impedance of all oxygen transport medias in a fuel cell are interdependent.

引用

页数：4

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