Oxygen starvation analysis during air feeding faults in PEMFC

被引：111

作者：

Gerard, Mathias ^{[1
,2
]}

Poirot-Crouvezier, Jean-Philippe ^{[1
]}

Hissel, Daniel ^{[2
]}

Pera, Marie-Cecile ^{[2
]}

机构：

[1] CEA, DRT LITEN, F-38000 Grenoble, France

[2] Univ Franche Comte, FEMTO ST ENISYS FCLAB Lab, F-90010 Belfort, France

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2010年 / 35卷 / 22期

关键词：

PEMFC; Oxygen starvation; Current density measurement; Modeling; Ageing tests; Voltage oscillations; CURRENT-DENSITY DISTRIBUTION; MEMBRANE FUEL-CELL; PART I; DEGRADATION; PERFORMANCE; MODEL; REVERSAL; FLOW; TEMPERATURE; DURABILITY;

D O I：

10.1016/j.ijhydene.2010.08.028

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：

A new analysis of performance degradation during oxygen starvation of PEMFC (Proton Exchange Membrane Fuel Cell) is proposed in this paper Oxygen starvation happens for several reasons like compressor delay fault during peak power demand or water management issues The consequences on fuel cell performance degradation are not stall well understood This paper proposes a complete study with experimental tests and modeling Impacts on performance were investigated under oxygen starvation and effects on the local conditions in the MEA (Membrane Electrode Assembly) were measured and modeled In particular current density measurements during oxygen starvation have been made with a specific bi cell stack Voltage oscillations were also found Durability test have been realized on a PEMFC stack Samples from the degraded MEA were analyzed by TEM (Transmission Electron Microscopy) Degradation mechanisms are proposed and the local conditions during oxygen starvation are identified (C) 2010 Professor T Nejat Veziroglu Published by Elsevier Ltd All rights reserved

引用

页码：12295 / 12307

页数：13

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