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Abstract
Dynamic Electrochemical Impedance Spectroscopy (DEIS) was presented as novel method for diagnostic and monitoring of PEMFC stack and single cells operation. Impedance characteristics were obtained simultaneously with current - voltage characteristics for stack and each individual cell. Impedance measurements were performed in galvanodynamic mode. It allowed to compare performance of each cell and identification of faulty cell operation for activation, ohmic and mass transfer losses regions. The biggest difference in impedance value between healthy and faulty cell was registered for mass transfer losses region. The authors discussed the statistical selection of an equivalent circuit based on the course of χ2 value in the function of current.
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Authors (7)
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Jens Mitzel dr
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Jurgen Hunger -
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
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ELECTROCHIMICA ACTA
no. 292,
pages 383 - 389,
ISSN: 0013-4686 - Language:
- English
- Publication year:
- 2018
- Bibliographic description:
- Darowicki K., Janicka E., Mielniczek M., Zieliński A., Gaweł Ł., Mitzel J., Hunger J.: Implementation of DEIS for reliable fault monitoring and detection in PEMFC single cells and stacks// ELECTROCHIMICA ACTA. -Vol. 292, (2018), s.383-389
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.electacta.2018.09.105
- Sources of funding:
- Verified by:
- Gdańsk University of Technology
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