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Article

A Multi-Particle Physics-Based Model of a Lithium-Ion Battery for Fast-Charging Control Application

by 1,2,*, 1, 1 and 1
1
College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
2
National Engineering Laboratory for Electric Vehicles, School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
*
Author to whom correspondence should be addressed.
Academic Editors: Joeri Van Mierlo, C. C. Chan, Yoichi Hori, James L. Kirtley, Myoungho Sunwoo and Xuhui Wen
World Electr. Veh. J. 2021, 12(4), 196; https://doi.org/10.3390/wevj12040196
Received: 2 September 2021 / Revised: 25 September 2021 / Accepted: 14 October 2021 / Published: 17 October 2021
The charging safety of electric vehicles is an area of focus in the electric automobile industry. For the purpose of ensuring safety, charging electric vehicles as soon as possible is a goal pursued by the public. In order to ensure the safety of electric vehicles during fast charging and to reduce the cycle life decay of the battery, a simplified multi-particle lithium-ion battery model is proposed, based on the pseudo two-dimensional (P2D) model. The model was developed by considering heterogeneous electrochemical reactions in the negative electrode area. The Butler–Volmer (BV) kinetic equation and the distribution of the pore wall flux in the negative electrode is approximated by the quasi-linear approximation method. Furthermore, this paper also analyzes the conditions of lithium precipitation from the negative electrode of a lithium-ion battery in the case of high charging rates, which has a certain reference significance for fast-charging control applications. The experimental and simulation results show that the model has a high simulation accuracy and can reflect the heterogeneity of electrochemical reactions in the negative electrode of the battery. The model can be adapted to fast-charging control applications. View Full-Text
Keywords: lithium-ion battery; physical model simplification; safe fast-charging; heterogeneous pore wall flux lithium-ion battery; physical model simplification; safe fast-charging; heterogeneous pore wall flux
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MDPI and ACS Style

Li, X.; Hua, W.; Tian, J.; Tian, Y. A Multi-Particle Physics-Based Model of a Lithium-Ion Battery for Fast-Charging Control Application. World Electr. Veh. J. 2021, 12, 196. https://doi.org/10.3390/wevj12040196

AMA Style

Li X, Hua W, Tian J, Tian Y. A Multi-Particle Physics-Based Model of a Lithium-Ion Battery for Fast-Charging Control Application. World Electric Vehicle Journal. 2021; 12(4):196. https://doi.org/10.3390/wevj12040196

Chicago/Turabian Style

Li, Xiaoyu, Wen Hua, Jindong Tian, and Yong Tian. 2021. "A Multi-Particle Physics-Based Model of a Lithium-Ion Battery for Fast-Charging Control Application" World Electric Vehicle Journal 12, no. 4: 196. https://doi.org/10.3390/wevj12040196

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