Influence of Artificial Ageing of Gas Diffusion Layers on the Water Management of PEM Fuel Cells

被引：3
作者：
Arlt, T. [1 ,2 ]
Klages, M. [3 ]
Manke, I. [2 ]
Messserschmidt, M. [3 ]
Riesemeier, H. [4 ]
Hilger, A. [2 ]
Scholta, J. [3 ]
Banhart, J. [1 ,2 ]
机构：
[1] Tech Univ Berlin, D-10623 Berlin, Germany
[2] Helmholtz Zentrum Berlin, D-14109 Berlin, Germany
[3] Zentrum Sonnenenergie & Wasserstoff Forsch Baden, D-89081 Ulm, Germany
[4] Bundesanstalt Mat Forsch & Prufung, D-12205 Berlin, Germany
来源：
ENERGY TECHNOLOGY/BATTERY (GENERAL) - 223RD ECS MEETING | 2013年 / 53卷 / 30期
关键词：
RAY TOMOGRAPHIC MICROSCOPY; LIQUID WATER; DEGRADATION; VISUALIZATION; RADIOGRAPHY; DURABILITY; MECHANISMS; TRANSPORT; MEMBRANES; PEFC;
D O I：
10.1149/05330.0021ecst
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The influence of artificial ageing of gas diffusion layers (GDL) on the water management within the GDL was investigated in-situ by synchrotron X-ray radiography. One GDL was subjected to an accelerated ageing procedure in 30 % H2O2 solution while another GDL was pristine. The GDLs were first assembled in test cells, after which the water distribution during operation was investigated. Radiographic measurements were combined with temporally resolved electrical analyses. Significant differences in cell voltage and water accumulation were observed in the GDL operated at steady-state conditions. In the cell containing the aged GDL, a higher water volume was found especially at the anode side while the cell voltage was lower.
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页码：21 / 28
页数：8
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