Poster (Invited)

FZJ-2026-00554

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Eddy Current Mapping for In-line Quality Control of PEM Electrolyser Electrodes and MEAs

Bartoli, F. (Corresponding author)FZJ* ; Hilche, T.FZJ* ; Liu, J.FZJ* ; Karl, A.FZJ* ; Jodat, E.FZJ* ; Eichel, R.-A.FZJ*RWTH*

2025

Abstract: In polymer electrolyte membrane (PEM) water electrolysis the activematerial component is the membrane electrode assembly (MEA)consisting of a cathode and an anode catalyst layer (CL) coated on aproton conducting membrane.During large-scale MEA production critical process steps are thetemperature treatment (tempering) of CLs and the CL decal transfer onto the membrane as they have a great impact on electrodeconductivity, which is an important factor in MEA performance.To monitor the quality of these production steps a fast and reliablein-line analysis tool needs to be established. This becomes especiallyimportant as the production volume is increasing towards the GWscale. Here, we propose the eddy current technique for in-linequality control. It is an inductive, non-destructive method andprovides fast and accurate sheet resistance information.

Keyword(s): Chemistry (2nd)

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Contributing Institute(s):

1. Grundlagen der Elektrochemie (IET-1)

Research Program(s):

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

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