Title: Effect of tomography resolution on calculation of microstructural properties for lithium ion porous electrodes
Authors: Le Houx, James
Osenberg, Markus
Neumann, Matthias
Binder, Joachim R.
Schmidt, Volker
Manke, Ingo
Carraro, Thomas 
Kramer, Denis 
Language: eng
Issue Date: 2020
Publisher: Electrochemical Society
Document Type: Article
Journal / Series / Working Paper (HSU): ECS transactions : ECST
Volume: 97
Issue: 7
Page Start: 255
Page End: 266
Publisher Place: Pennington, NJ
This work uses an open-source, data-driven, image-based modelling framework; OpenImpala. Lithium Iron Phosphate (LFP) electrode samples were imaged using micro-CT. Two scans were performed using the Zeiss 160 kVp Versa 510 at the University of Southampton. The two scans were both carried out on the same sample and using the same focal point, this is so they could be used as a direct comparison to see how porosity and tortuosity changed with spatial resolution. It is found that the Bruggeman correlation significantly underestimates the tortuosity compared to the OpenImpala calculated results. It is also found that there is a larger statistical variability in the 801 nm results, whereas the 400 nm results have a much smaller standard deviation. These results were compared to computer-generated images based on FIB/SEM tomographic data of a single Nickel Manganese Cobalt Oxide (NMC) porous active particle and found to have the same trends.
Organization Units (connected with the publication): Computational Material Design 
ISSN: 1938-5862
Publisher DOI: 10.1149/09707.0255ecst
Appears in Collections:3 - Reported Publications

Show full item record

CORE Recommender


checked on Mar 22, 2023

Google ScholarTM




Items in openHSU are protected by copyright, with all rights reserved, unless otherwise indicated.