Journal Article

FZJ-2022-02946

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png A Model for the Concentration Admittance of a Polymer Electrolyte Fuel Cell

Eikerling, M.FZJ* ; Kulikovsky, A. (Corresponding author)FZJ* ; Kadyk, T.FZJ* ; Sun, Y. (Corresponding author)FZJ*

2022
Soc. Washington, DC

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Please use a persistent id in citations: http://hdl.handle.net/2128/32419  doi:10.1021/acs.jpcc.2c04131

Abstract: A dynamic model for the concentration admittance of a polymer electrolyte fuel cell is presented. The model takes into account oxygen transport in the cathode channel, the gas diffusion layer, and the cathode catalyst layer. An analytical solution for the concentration admittance is derived. We observe that the admittance at the air channel outlet is not affected by faradaic reactions, and it contains information on the oxygen transport coefficients in the cell. The admittance measured at the air channel outlet can be fitted using the formula obtained in this work to extract the oxygen transport coefficients. Practical methods for measuring the concentration admittance are proposed.

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Contributing Institute(s):

1. IEK-13 (IEK-13)
2. JARA-ENERGY (JARA-ENERGY)

Research Program(s):

1. 1222 - Components and Cells (POF4-122) (POF4-122)

Appears in the scientific report 2022

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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