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Swift Prediction of Battery Performance : Applying Machine Learning Models on Microstructural Electrode Images for Lithium-Ion Batteries

  • In this study, we investigate the use of artificial neural networks as a potentially efficient method to determine the rate capability of electrodes for lithium-ion batteries with different porosities. The performance of a lithium-ion battery is, to a large extent, determined by the microstructure (i.e., layer thickness and porosity) of its electrodes. Tailoring the microstructure to a specific application is a crucial process in battery development. However, unravelling the complex correlations between microstructure and rate performance using either experiments or simulations is time-consuming and costly. Our approach provides a swift method for predicting the rate capability of battery electrodes by using machine learning on microstructural images of electrode cross-sections. We train multiple models in order to predict the specific capacity based on the batteries’ microstructure and investigate the decisive parts of the microstructure through the use of explainable artificial intelligence (XAI) methods. Our study shows that even comparably small neural network architectures are capable of providing state-of-the-art prediction results. In addition to this, our XAI studies demonstrate that the models are using understandable human features while ignoring present artefacts.

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Metadaten
Author:Patrick DeegORCiD, Christian WeisenbergerORCiD, Jonas OehmORCiD, Denny Schmidt, Orsolya CsiszarORCiD, Volker Knoblauch
URN:urn:nbn:de:bsz:944-opus4-32651
DOI:https://doi.org/10.3390/batteries10030099
Source Title (English):Batteries
Document Type:Article
Language:English
Year of Completion:2024
Publishing Institution:Hochschule Aalen
Release Date:2024/03/19
Volume:10
Issue:3
Article Number:99
Number of Pages:16
Faculty:Maschinenbau und Werkstofftechnik
Open Access:Open Access
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International