Understanding flexural, mechanical and physico-chemical properties of gas diffusion layers for polymer membrane fuel cell and electrolyzer systems

Structural variations in the Gas Diffusion Layer (GDL) can affect material functionalities and performance of the polymer electrolyte and fuel cell power systems. The selection of GDLs depends on their structure, physico-chemical and mechanical properties. The flexural and mechanical properties of d...

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Bibliographic Details
Published in:International journal of hydrogen energy 2015-12, Vol.40 (46), p.16846-16859
Main Authors: Dhanushkodi, S.R., Capitanio, F., Biggs, T., Mérida, W.
Format: Article
Language:English
Subjects:
Fiber orientation
Flexural properties
GDLs
Mechanical strength
PEM (polymer electrolyte membrane) fuel cells
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Summary:Structural variations in the Gas Diffusion Layer (GDL) can affect material functionalities and performance of the polymer electrolyte and fuel cell power systems. The selection of GDLs depends on their structure, physico-chemical and mechanical properties. The flexural and mechanical properties of different fuel cell GDL materials are reviewed with a focus on synthesis constraints. Emphasis is placed on mechanical degradation and mechanical analysis methods of the GDL. The change of physico-chemical properties is discussed in relation with the fiber orientation, bending behaviour, Teflon dispersion and the compression force. Based on our review, we recommend roll-good GDLs for the fuel cell stack production.
ISSN:0360-3199
1879-3487
DOI:10.1016/j.ijhydene.2015.07.033