Analysis of Fuel Cell Stack Performance Attenuation and Individual Cell Voltage Uniformity Based on the Durability Cycle Condition
1
School of Automotive Studies, Tongji University, Shanghai 201804, China
2
Shanghai Ranrui New Energy Vehicle Technology Co., Ltd, Shanghai 201804, China
3
Yangtze Delta Region Institute of Tsinghua University, Jiaxing 314006, China
*
Author to whom correspondence should be addressed.
Academic Editor: Mrinmay Mandal
Polymers 2021, 13(8), 1199; https://doi.org/10.3390/polym13081199
Received: 3 February 2021 / Revised: 1 April 2021 / Accepted: 2 April 2021 / Published: 8 April 2021
(This article belongs to the Special Issue Polymer Electrolyte Membranes for Fuel Cells, Water Electrolysis, Redox Flow Batteries, Electrodialysis, and CO2 Electroreduction)
Based on the dynamic cycle condition test of a 4.5 kW fuel cell stack, the performance attenuation and individual cell voltage uniformity of the proton exchange membrane fuel cell (PEMFC) stack was evaluated synthetically. The performance decay period of the fuel cell stack was 180–600 h, the decrease of voltage and power was evaluated by rate and amplitude. The results show that the performance of the fuel cell stack decreased with the increase of test time and current density. When the test was carried out to 600 h, under rated operating conditions, the voltage attenuation rate was 130 μV/h, and the voltage reduced by 71 mV, with a decrease of 10.41%. The power attenuation rate was 0.8 W/h, with a decrease of 10.42%. The statistical parameter variation coefficient was used to characterize the voltage consistency of individual cells. It was found that the voltage uniformity is worse at the high current density point and with a long-running process. The variation coefficient was 3.1% in the worst performance.
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MDPI and ACS Style
Shen, C.; Xu, S.; Gao, Y. Analysis of Fuel Cell Stack Performance Attenuation and Individual Cell Voltage Uniformity Based on the Durability Cycle Condition. Polymers 2021, 13, 1199. https://doi.org/10.3390/polym13081199
AMA Style
Shen C, Xu S, Gao Y. Analysis of Fuel Cell Stack Performance Attenuation and Individual Cell Voltage Uniformity Based on the Durability Cycle Condition. Polymers. 2021; 13(8):1199. https://doi.org/10.3390/polym13081199
Chicago/Turabian StyleShen, Chunjuan; Xu, Sichuan; Gao, Yuan. 2021. "Analysis of Fuel Cell Stack Performance Attenuation and Individual Cell Voltage Uniformity Based on the Durability Cycle Condition" Polymers 13, no. 8: 1199. https://doi.org/10.3390/polym13081199
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