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Open AccessArticle

Scale-Up of Physics-Based Models for Predicting Degradation of Large Lithium Ion Batteries

by 1,† and 2,*
1
Department of Mechanical & Aerospace Engineering, Seoul National University, Seoul 151-744, Korea
2
Department of Mechanical Engineering, Myongji University, Yongin 448-728, Korea
*
Author to whom correspondence should be addressed.
Current address: Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL 60439, USA.
Sustainability 2020, 12(20), 8544; https://doi.org/10.3390/su12208544
Received: 17 September 2020 / Revised: 12 October 2020 / Accepted: 13 October 2020 / Published: 15 October 2020
(This article belongs to the Special Issue Sustainability and Transportation Systems)
Large lithium-ion batteries (LIBs) demonstrate different performance and lifetime compared to small LIB cells, owing to the size effects generated by the electrical configuration and property imbalance. However, the calculation time for performing life predictions with three-dimensional (3D) cell models is undesirably long. In this paper, a lumped cell model with equivalent resistances (LER cell model) is proposed as a reduced order model of the 3D cell model, which enables accurate and fast life predictions of large LIBs. The developed LER cell model is validated via the comparisons with results of the 3D cell models by simulating a 20-Ah commercial pouch cell (NCM/graphite) and the experimental values. In addition, the LER cell models are applied to different cell types and sizes, such as a 20-Ah cylindrical cell and a 60-Ah pouch cell. View Full-Text
Keywords: large sized lithium-ion battery; physics-based model; life prediction; scale-up model; reduced order cell model large sized lithium-ion battery; physics-based model; life prediction; scale-up model; reduced order cell model
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MDPI and ACS Style

Kim, H.-K.; Lee, K.-J. Scale-Up of Physics-Based Models for Predicting Degradation of Large Lithium Ion Batteries. Sustainability 2020, 12, 8544. https://doi.org/10.3390/su12208544

AMA Style

Kim H-K, Lee K-J. Scale-Up of Physics-Based Models for Predicting Degradation of Large Lithium Ion Batteries. Sustainability. 2020; 12(20):8544. https://doi.org/10.3390/su12208544

Chicago/Turabian Style

Kim, Hong-Keun; Lee, Kyu-Jin. 2020. "Scale-Up of Physics-Based Models for Predicting Degradation of Large Lithium Ion Batteries" Sustainability 12, no. 20: 8544. https://doi.org/10.3390/su12208544

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