Crack Detection in Fuel Cell Electrodes Using a Spatial Filtering Technique for Overcoming Noisy Backgrounds

Research output: Contribution to journalArticlepeer-review

1 Scopus Citations

Abstract

Image processing is a powerful tool that allows for rapid and automated data parsing in settings that occupy large variable spaces and require large data sets. Feature detection on difficultly discerned backgrounds is a subset of image processing that facilitates the extraction of quantitative metrics from otherwise subjective data. Crack detection and quantification is an important capability in polymer electrolyte membrane fuel cell quality control, failure analysis, and optimization. This work presents a technique to perform crack detection and quantification which overcomes challenges faced by commonly used image segmentation techniques. We demonstrate the use of a geometrically filtered noise-level detection technique to select a binary threshold value from which we then quantify how cracked a sample is. We demonstrate the accuracy of our technique using programmatically generated test images of known crack amounts and their performance on real-world fuel cell catalyst layer samples.

Original languageAmerican English
Pages (from-to)353-362
Number of pages10
JournalFuel Cells
Volume23
Issue number5
DOIs
StatePublished - 2023

Bibliographical note

Publisher Copyright:
© 2023 Wiley-VCH GmbH.

NREL Publication Number

  • NREL/JA-5900-81986

Keywords

  • catalyst coating
  • crack detection
  • cracking
  • image processing
  • quality control

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