Journal Article

FZJ-2018-01959

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png A Model for Extraction of Spatially Resolved Data from Impedance Spectrum of a PEM Fuel Cell

Reshetenko, T. ; Kulikovsky, A. (Corresponding author)FZJ*

2018
Electrochemical Soc. Pennington, NJ

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Please use a persistent id in citations: http://hdl.handle.net/2128/17926  doi:10.1149/2.0511805jes

Abstract: We report a novel approach to processing of impedance spectra of a PEM fuel cell. We split the cell into N virtual segments andlet each segment to have its own set of transport and kinetic parameters. The impedance of a single segment is calculated using ourrecent physics–based impedance model; the segments are “linked” by equation for the oxygen mass balance in the cathode channeltransporting the local phase and amplitude information from one segment to another. Thanks to this transport, the total cell impedancecontains information on the local transport and kinetic properties of the cell. We show that fitting the model cell impedance to theexperimental spectra yields the parameters of individual segments, i.e., the shape of the cell physical parameters along the cathodechannel.

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Contributing Institute(s):

1. Elektrochemische Verfahrenstechnik (IEK-3)

Research Program(s):

1. 135 - Fuel Cells (POF3-135) (POF3-135)

Appears in the scientific report 2018

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Database coverage:
; ; ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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