Journal Article

FZJ-2016-00876

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png A simple physics-based equation for low-current impedance of a PEM fuel cell cathode

Kulikovsky, A. (Corresponding author)FZJ*

2016
Elsevier New York, NY [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.electacta.2016.02.150

Abstract: A solvable physical model for impedance of the cathode catalyst layer (CCL) in a PEM fuel cell is developed. The model includes reaction activation and oxygen transport in the CCL; the proton transport is assumed to be fast. The expression for the CCL impedance Z is derived and represented as a sum of the charge–transfer Zct and oxygen transport Zox impedances. Availability of analytical expression for Zox enables to suggest a simple equation for the total CCL impedance, which includes oxygen and proton transport losses. This equation accurately reproduces a much more cumbersome exact solution obtained in Electrochim. Acta, 147 (2014) 773. An expression for the summit frequency of the oxygen transport arc is obtained

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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 2016

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Database coverage:
; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; No Authors Fulltext ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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