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http://dx.doi.org/10.9713/kcer.2016.54.3.305

Study on the Degradation of MEA Using Sulfonated Poly(ether ether ketone) Membrane in Proton Exchange Membrane Fuel Cells  

Lee, Hye-Ri (Department of Chemical Engineering, Sunchon National University)
Lee, Se-Hoon (Department of Chemical Engineering, Sunchon National University)
Hwang, Byung-Chan (Department of Chemical Engineering, Sunchon National University)
Na, Il-Chai (CNL Energy Co.)
Lee, Jung-Hun (CNL Energy Co.)
Oh, Sung-June (CNL Energy Co.)
Park, Kwon-Pil (Department of Chemical Engineering, Sunchon National University)
Publication Information
Korean Chemical Engineering Research / v.54, no.3, 2016 , pp. 305-309 More about this Journal
Abstract
Recently, there are many efforts focused on development of more economical non-fluorinated membranes for PEMFCs (Proton Exchange Membrane Fuel Cells). In this study, to test the durability of sPEEK MEA (Membrane and Electrode Assembly), ADT (Accelerated Degradation Test) of MEA degradation was done at the condition that membrane and electrode were degraded simultaneously. Before and after degradation, I-V polarization curve, hydrogen crossover, electrochemical surface area, membrane resistance and charge transfer resistance were measured. Although the permeability of hydrogen through sPEEK membrane was low, sPEEK membrane was weaker to radical evolved at low humidity and OCV condition than fluorinated membrane such as Nafion. Performance after MEA degradation for 144 hours and 271 hours were reduced by 15% and 65%, respectively. It was showed that the main cause of rapid decrease of performance after 144 hours was shorting due to Pt/C particles in the pinholes.
Keywords
PEMFC; sPEEK; MEA Degradation; Accelerated stress test; Durability;
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Times Cited By KSCI : 3  (Citation Analysis)
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