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Article

A Comparative Study of Equivalent Circuit Models for Electro-Chemical Impedance Spectroscopy Analysis of Proton Exchange Membrane Fuel Cells

1
School of Automotive Studies, Tongji University, Shanghai 201804, China
2
Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, China
3
Shanghai Motor Vehicle Inspection Certification & Tech Innovation Center Co., Ltd., Shanghai 201804, China
4
Nantong Bing Energy Co., Ltd., Nantong 226500, China
*
Author to whom correspondence should be addressed.
Academic Editor: Li Chen
Energies 2022, 15(1), 386; https://doi.org/10.3390/en15010386
Received: 2 December 2021 / Revised: 16 December 2021 / Accepted: 1 January 2022 / Published: 5 January 2022
(This article belongs to the Collection Batteries, Fuel Cells and Supercapacitors Technologies)
Electrochemical impedance spectroscopy is one of the important tools for the performance analysis and diagnosis of proton exchange membrane fuel cells. The equivalent circuit model is an effective method for electrochemical impedance spectroscopy resolution. In this paper, four typical equivalent circuit models are selected to comprehensively compare and analyze the difference in the fitting results of the models for the electrochemical impedance spectroscopy under different working conditions (inlet pressure, stoichiometry, and humidity) from the perspective of the fitting accuracy, change trend of the model parameters, and the goodness of fit. The results show that the fitting accuracy of the model with the Warburg element is the best for all under each working condition. When considering the goodness of fit, the model with constant phase components is the best choice for fitting electrochemical impedance spectroscopy under different inlet pressure and air stoichiometry. However, under different air humidity, the model with the Warburg element is best. This work can help to promote the development of internal state analysis, estimation, and diagnosis of the fuel cell based on the equivalent circuit modeling of electrochemical impedance spectroscopy. View Full-Text
Keywords: proton exchange membrane fuel cell; electrochemical impedance spectroscopy; equivalent circuit model; comparative study proton exchange membrane fuel cell; electrochemical impedance spectroscopy; equivalent circuit model; comparative study
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MDPI and ACS Style

Zhao, L.; Dai, H.; Pei, F.; Ming, P.; Wei, X.; Zhou, J. A Comparative Study of Equivalent Circuit Models for Electro-Chemical Impedance Spectroscopy Analysis of Proton Exchange Membrane Fuel Cells. Energies 2022, 15, 386. https://doi.org/10.3390/en15010386

AMA Style

Zhao L, Dai H, Pei F, Ming P, Wei X, Zhou J. A Comparative Study of Equivalent Circuit Models for Electro-Chemical Impedance Spectroscopy Analysis of Proton Exchange Membrane Fuel Cells. Energies. 2022; 15(1):386. https://doi.org/10.3390/en15010386

Chicago/Turabian Style

Zhao, Lei, Haifeng Dai, Fenglai Pei, Pingwen Ming, Xuezhe Wei, and Jiangdong Zhou. 2022. "A Comparative Study of Equivalent Circuit Models for Electro-Chemical Impedance Spectroscopy Analysis of Proton Exchange Membrane Fuel Cells" Energies 15, no. 1: 386. https://doi.org/10.3390/en15010386

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