TY  - JOUR
AU  - Reshetenko, Tatyana
AU  - Kulikovsky, Andrei
TI  - A Model for Extraction of Spatially Resolved Data from Impedance Spectrum of a PEM Fuel Cell
JO  - Journal of the Electrochemical Society
VL  - 165
IS  - 5
SN  - 0013-4651
CY  - Pennington, NJ
PB  - Electrochemical Soc.
M1  - FZJ-2018-01959
SP  - F291 - F296
PY  - 2018
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000431803900105
DO  - DOI:10.1149/2.0511805jes
UR  - https://juser.fz-juelich.de/record/844552
ER  -