Journal Article

FZJ-2022-04002

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Effect of proton conductivity transients on PEM fuel cell impedance: Formation of a low–frequency inductive loop

Kulikovsky, A. (Corresponding author)FZJ*

2022
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: http://hdl.handle.net/2128/32233  doi:10.1016/j.elecom.2022.107340

Abstract: A model for PEMFC cathode impedance is developed. The model includes transient response of catalyst layer proton conductivity to cell current density variation. Analytical solution shows that transient conductivity leads to formation of a low–frequency inductive loop in the Nyquist spectrum. This loop has been observed in numerous experiments and its nature has long been discussed in literature. The results of this work provide a new mechanism of loop formation

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Contributing Institute(s):

1. IEK-13 (IEK-13)

Research Program(s):

1. 1231 - Electrochemistry for Hydrogen (POF4-123) (POF4-123)

Appears in the scientific report 2022

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