Document Type
Article
Abstract
In this work, discrete element method (DEM) simulations were used to probe changes in electrode porosity, electrode strain, and the resultant pressure changes for composite electrodes comprised of active material and binder particles. Through the results acquired by these simulations, three cases that are representative of two limiting cases for electrode operation, and one case for realistic electrode face pressure during operation were captured and the implications on design and performance are discussed. Predicting changes in the porosity is a unique insight that is difficult if not impossible to capture experimentally but is important for predicting changes in electrochemical performance during cycling, and should be addressed early on in the design phase for automotive and grid storage battery design and performance.
Digital Object Identifier (DOI)
Publication Info
Published in Journal of the Electrochemical Society, Volume 171, Issue 8, 2024, pages 083507-.
Rights
© 2024 The Author(s). Published on behalf of The Electrochemical Society by IOP This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited.
APA Citation
Teel, H., Garrick, T. R., Srinivasan, S., Wang, F., Zeng, Y., & Shimpalee, S. (2024). Addressing Strain and Porosity Changes of Battery Electrodes Due to Reversible Expansion through DEM Simulations. Journal of the Electrochemical Society, 171(8), 083507. https://doi.org/10.1149/1945-7111/ad70d8