The characteristics of voltage degradation of a proton exchange membrane fuel cell under a road operating environment |
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Authors: | Xinfeng Zhang Yang Rui Zhang Tong Xu Sichuan Shen Yong Ni Huaisheng |
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Affiliation: | 1. Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, China;2. Fuel Cell Power Train Co. Ltd., Shanghai 201804, China |
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Abstract: | A real-life testing experiment of a proton exchange membrane fuel cell (PEMFC) and the basic characteristics of its voltage degradation are presented. A general package radio system (GPRS)-based remote monitoring system was used as the data acquisition method, and the non-linear regression method was used to estimate PEMFC's polarization curve within specific iso-interval periods. The voltage degradation rate was calculated using the differential method, and its average level was also analyzed. The experimental results indicated that the voltage degradation rate at a specific current density featured a bathtub-like curve, exhibiting 1) infant degradation, 2) steady degradation, 3) and accelerated degradation. |
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Keywords: | Proton exchange membrane fuel cell Real life testing Voltage degradation rate Voltage degradation feature Bathtub-like curve |
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