Fatigue properties of catalyst coated membranes for fuel cells: Ex-situ measurements supported by numerical simulations
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- 作者：R.M.H. Khorasany ; Y. Singh ; A. Sadeghi Alavijeh ; E. Kjeang ; ekjeang@sfu.ca" class="auth_mail" title="E-mail the corresponding author ; G.G. Wang ; R.K.N.D. Rajapakse
- 关键词：Fuel cell ; Membrane ; Catalyst layer ; CCM ; Fatigue
- 刊名：International Journal of Hydrogen Energy
- 出版年：2016
- 出版时间：8 June 2016
- 年：2016
- 卷：41
- 期：21
- 页码：8992-9003
- 全文大小：1309 K
文摘
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Mechanical fatigue durability of catalyst coated membranes (CCMs) is measured.
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A finite element based fatigue model is developed for the CCM material.
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The maximum tolerable stress of CCM is found to be lower than that of pure membrane.
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Temperature cycling is found to be more severe than humidity cycling.
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Combined temperature and humidity cycling can significantly reduce fatigue lifetime.