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dc.contributor.authorFortin, Patrick
dc.contributor.authorGerhardt, Michael Robert
dc.contributor.authorUlleberg, Øystein
dc.contributor.authorZenith, Federico
dc.contributor.authorHolm, Thomas
dc.date.accessioned2022-09-19T14:35:40Z
dc.date.available2022-09-19T14:35:40Z
dc.date.created2022-05-26T11:26:07Z
dc.date.issued2022
dc.identifier.citationFrontiers in Energy Research. 2022, 10, 855985.en_US
dc.identifier.issn2296-598X
dc.identifier.urihttps://hdl.handle.net/11250/3018991
dc.description.abstractElectrochemical impedance spectroscopy (EIS) is a powerful technique that can be used to detect small changes in electrochemical systems and subsequently identify the source of the change. While promising, analysis is often non-intuitive and time-consuming, where collection times of a single EIS spectrum can reach several minutes. To circumvent the long collection times associated with traditional EIS measurements, a multi-sine EIS technique was proposed in which the simultaneous application of many frequencies can reduce the acquisition time to less than a minute. This shortened acquisition time opens the possibility to use multi-sine EIS as a real-time diagnostic tool for monitoring the state-of-health of commercial fuel cell systems. In this work, a single-cell proton exchange membrane fuel cell (PEMFC) was characterised using multi-sine EIS, by establishing steady-state impedance response under baseline conditions before systematically changing operating conditions and monitoring the dynamic changes of the impedance response. Our initial results demonstrate that full multi-sine EIS spectra, encompassing a frequency range from 50 kHz to 0.5 Hz, can be collected and analysed using simple equivalent circuit models in 50 s. It is shown that this timeframe is sufficiently short to capture the dynamic response of the fuel cell in response to changing operating conditions, thereby validating the use of multi-sine EIS as a diagnostic technique for in-situ monitoring and fault detection during fuel cell operation.en_US
dc.language.isoengen_US
dc.publisherFrontiersen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.subjectPEMFCen_US
dc.subjectHydrogenen_US
dc.subjectFuel cellsen_US
dc.subjectElectrochemical impedance spectroscopy (EIS)en_US
dc.subjectDiagnosticsen_US
dc.titleMulti-Sine EIS for Early Detection of PEMFC Failure Modesen_US
dc.title.alternativeMulti-Sine EIS for Early Detection of PEMFC Failure Modesen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.rights.holder© 2022 Fortin, Gerhardt, Ulleberg, Zenith and Holm.en_US
dc.source.volume10en_US
dc.source.journalFrontiers in Energy Researchen_US
dc.identifier.doi10.3389/fenrg.2022.855985
dc.identifier.cristin2027552
dc.relation.projectNorges forskningsråd: 257653en_US
dc.relation.projectNorges forskningsråd: 245678en_US
dc.source.articlenumber855985en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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