Estimation of Membrane Hydration Status for Standby Proton Exchange Membrane Fuel Cell Systems by Impedance Measurement: First Results on Variable Temperature Stack Characterization

Benoit Bidoggia, Søren Knudsen Kær

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

2 Citations (Scopus)

Abstract

Fuel cells are getting growing interest in both backup systems and electric vehicles. Although these systems are characterized by periods of standby, they must be able to start at any instant in the shortest possible time. However, the membranes of which proton exchange membrane fuel cells are made, tend to gradually dry out when the fuel cell is not operating, increasing the time required to start up the system. A precise estimation of the hydration status of the membrane during standby is thus important for the design of a fuel cell system capable of a fast and safe start up. In previous works, the measurement of the complex impedance of a fuel cell stack during standby is used as an index of its membrane hydration status. In this article, the complex impedance of a fuel cell stack has been measured and characterized as a function of relative humidity and temperature. A non-conventional electrochemical impedance spectroscopy (EIS) technique has been used, allowing the performance of a fuel cell diagnostic when the fuel cell stack does not contain any hydrogen, which would otherwise not be possible. The results appeared to confirm that measuring the impedance of an entire fuel cell stack could be a viable way for estimating the hydration status and the temperature of its membrane before the system is started up. A summarizing table with the complete characterization of the fuel cell stack is included in this article.
Original languageEnglish
Title of host publicationProceedings of the 2013 8th International Conference and Exhibition on Ecological Vehicles and Renewable Energies (EVER) : EVER
Number of pages10
PublisherIEEE Press
Publication date2013
Pages1-10
ISBN (Print)978-1-4673-5269-7
ISBN (Electronic)978-146735270-3
DOIs
Publication statusPublished - 2013
EventInternational Conference and Exhibition on Ecological Vehicles and Renewable Energies EVER 2013 - Monte Carlo, Monaco
Duration: 27 Mar 201330 Mar 2013

Conference

ConferenceInternational Conference and Exhibition on Ecological Vehicles and Renewable Energies EVER 2013
CountryMonaco
CityMonte Carlo
Period27/03/201330/03/2013

Fingerprint

Proton exchange membrane fuel cells (PEMFC)
Hydration
Fuel cells
Membranes
Temperature
Electric vehicles
Electrochemical impedance spectroscopy
Atmospheric humidity
Hydrogen

Cite this

Bidoggia, B., & Kær, S. K. (2013). Estimation of Membrane Hydration Status for Standby Proton Exchange Membrane Fuel Cell Systems by Impedance Measurement: First Results on Variable Temperature Stack Characterization. In Proceedings of the 2013 8th International Conference and Exhibition on Ecological Vehicles and Renewable Energies (EVER): EVER (pp. 1-10). IEEE Press. https://doi.org/10.1109/EVER.2013.6521593
Bidoggia, Benoit ; Kær, Søren Knudsen. / Estimation of Membrane Hydration Status for Standby Proton Exchange Membrane Fuel Cell Systems by Impedance Measurement: First Results on Variable Temperature Stack Characterization. Proceedings of the 2013 8th International Conference and Exhibition on Ecological Vehicles and Renewable Energies (EVER): EVER. IEEE Press, 2013. pp. 1-10
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abstract = "Fuel cells are getting growing interest in both backup systems and electric vehicles. Although these systems are characterized by periods of standby, they must be able to start at any instant in the shortest possible time. However, the membranes of which proton exchange membrane fuel cells are made, tend to gradually dry out when the fuel cell is not operating, increasing the time required to start up the system. A precise estimation of the hydration status of the membrane during standby is thus important for the design of a fuel cell system capable of a fast and safe start up. In previous works, the measurement of the complex impedance of a fuel cell stack during standby is used as an index of its membrane hydration status. In this article, the complex impedance of a fuel cell stack has been measured and characterized as a function of relative humidity and temperature. A non-conventional electrochemical impedance spectroscopy (EIS) technique has been used, allowing the performance of a fuel cell diagnostic when the fuel cell stack does not contain any hydrogen, which would otherwise not be possible. The results appeared to confirm that measuring the impedance of an entire fuel cell stack could be a viable way for estimating the hydration status and the temperature of its membrane before the system is started up. A summarizing table with the complete characterization of the fuel cell stack is included in this article.",
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Bidoggia, B & Kær, SK 2013, Estimation of Membrane Hydration Status for Standby Proton Exchange Membrane Fuel Cell Systems by Impedance Measurement: First Results on Variable Temperature Stack Characterization. in Proceedings of the 2013 8th International Conference and Exhibition on Ecological Vehicles and Renewable Energies (EVER): EVER. IEEE Press, pp. 1-10, International Conference and Exhibition on Ecological Vehicles and Renewable Energies EVER 2013, Monte Carlo, Monaco, 27/03/2013. https://doi.org/10.1109/EVER.2013.6521593

Estimation of Membrane Hydration Status for Standby Proton Exchange Membrane Fuel Cell Systems by Impedance Measurement: First Results on Variable Temperature Stack Characterization. / Bidoggia, Benoit; Kær, Søren Knudsen.

Proceedings of the 2013 8th International Conference and Exhibition on Ecological Vehicles and Renewable Energies (EVER): EVER. IEEE Press, 2013. p. 1-10.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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AB - Fuel cells are getting growing interest in both backup systems and electric vehicles. Although these systems are characterized by periods of standby, they must be able to start at any instant in the shortest possible time. However, the membranes of which proton exchange membrane fuel cells are made, tend to gradually dry out when the fuel cell is not operating, increasing the time required to start up the system. A precise estimation of the hydration status of the membrane during standby is thus important for the design of a fuel cell system capable of a fast and safe start up. In previous works, the measurement of the complex impedance of a fuel cell stack during standby is used as an index of its membrane hydration status. In this article, the complex impedance of a fuel cell stack has been measured and characterized as a function of relative humidity and temperature. A non-conventional electrochemical impedance spectroscopy (EIS) technique has been used, allowing the performance of a fuel cell diagnostic when the fuel cell stack does not contain any hydrogen, which would otherwise not be possible. The results appeared to confirm that measuring the impedance of an entire fuel cell stack could be a viable way for estimating the hydration status and the temperature of its membrane before the system is started up. A summarizing table with the complete characterization of the fuel cell stack is included in this article.

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Bidoggia B, Kær SK. Estimation of Membrane Hydration Status for Standby Proton Exchange Membrane Fuel Cell Systems by Impedance Measurement: First Results on Variable Temperature Stack Characterization. In Proceedings of the 2013 8th International Conference and Exhibition on Ecological Vehicles and Renewable Energies (EVER): EVER. IEEE Press. 2013. p. 1-10 https://doi.org/10.1109/EVER.2013.6521593