Modeling polymer electrolyte fuel cells: an innovative approach

被引：95
|
作者：
Maggio, G [1 ]
Recupero, V [1 ]
Pino, L [1 ]
机构：
[1] CNR, TAE Inst, I-98126 Messina, Italy
来源：
JOURNAL OF POWER SOURCES | 2001年 / 101卷 / 02期
关键词：
electrode flooding; membrane dehydration; modeling; polymer electrolyte fuel cells; water transport;
D O I：
10.1016/S0378-7753(01)00758-3
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：
In this paper, a mathematical simulation model is proposed to describe the water transport in proton conductive membranes, used in polymer electrolyte fuel cells (PEFCs). The model, which includes the calculation of electrochemical parameters of a PEFC, represents a quite innovative approach. In fact, it is based on the use of original mathematical relationships taking into account diffusional and ohmic overpotentials for electrode flooding and membrane dehydration problems. The calculated performance of polymer fuel cells using a Nafion 117 membrane clearly demonstrates the model validation (+/-3% variation with respect to experimental data). Besides, analysis of model results allows a useful comparison of two different membranes (Nafion 117, Dow) in order to define the best membrane/electrode assembly. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：275 / 286
页数：12
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