Abstract
In this paper, sPTFS/PTFE composite membranes for PEMFC were obtained by impregnating two kinds of sulfonated poly-α,β,β- trifluorostyrene resin with different EWs into the porous PTFE substrate membranes. Water uptake, proton conductivity, mechanical strength and fuel cell performance of these two composite membranes were measured. Water uptake and proton conductivity were greatly reduced and mechanical strength was increased by composition in comparison with homogeneous membranes. Under the operating condition: T_(Cell)=80 ℃, P_(H_2)=0.2 MPa,P_(O_2)=0.2 MPa, fuel cell performance of the two composite membranes were better than that of Nafion~115. The fuel cell performance of composite membrane with low EW was better than that with high EW, but the stability of former is worse than that of latter.
Keywords
Poly -α, β, β- trifluorostyrene, Composite membrane, Proton Exchange Membrane Fuel Cell(PEMFC), Cell performance
Publication Date
2004-02-28
Online Available Date
2004-02-28
Revised Date
2004-02-28
Received Date
2004-02-28
Recommended Citation
Yong-zhu FU, Dan-min XING, Bao-lian YI, Hua-min ZHANG.
Study of sPTFS/PTFE Composite Membranes with Different EWs[J]. Journal of Electrochemistry,
2004
,
10(1): 27-34.
DOI: 10.61558/2993-074X.1541
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol10/iss1/5
References
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