Journal
JOURNAL OF POWER SOURCES
Volume 196, Issue 22, Pages 9800-9809Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2011.08.038
Keywords
Decal transfer; Polymer electrolyte membrane fuel cells (PEMFCs); Membrane electrode assembly (MEA); Nafion ionomer
Funding
- Fundamental R&D Program for Core Technology of Materials
- Ministry of Knowledge Economy
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Decal transfer is an effective membrane electrode assembly (MEA) fabrication method known for its low interfacial resistance and suitability for mass processing. Previously decal transfer for hydrocarbon membranes was performed at temperatures above 200 degrees C. Here a novel low temperature decal transfer (LTD) method for hydrocarbon membranes is introduced. The new method applies a small amount (2.2 mg cm(-2)) of liquid (1-pentanol) onto the membrane separator before decal transfer to lower the T(g) of the membrane and achieves complete decal transfer at 110 degrees C and 6 MPa. Nafion binder amount in the catalyst layer and catalyst layer annealing temperature is controlled to optimize the fuel cell performance. Compared to conventional decal transfer (CDT), the novel LTD method shows enhancement in energy efficiency, simplicity in the process scheme, and improvement in fuel cell performance. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
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