A Simplified Electrochemical Model of Lithium-ion Battery Considering Liquid Overpotential

Xinhua Gao, Xiaojie Li*, Facheng Wang, Yuquan Wen, Huina Mu, Xiaojian Yi

*此作品的通讯作者

科研成果: 书/报告/会议事项章节会议稿件同行评审

2 引用 (Scopus)

摘要

This paper proposes a simplified electrochemical model for lithium-ion batteries considering liquid phase overpotential (LOP2D). It has great significance for the analysis and prediction of dynamic battery characteristics, battery status evaluation, battery management etc. Based on the porous electrode theory and concentrated solution theory, the diffusion and migration of lithium ions are considered. Moreover, the finite difference method is used to solve the process of solid-phase lithium-ion diffusion. Finally, this paper compares terminal voltage change with time between the simplified electrochemical model and P2D model under different current density. The results show that the LOP2D model provides a more straightforward mathematical expression with fewer computational terms and higher computational accuracy, which is of great value in practical applications such as battery SOC estimation, ageing analysis, overcharge and over-discharge control, and thermal analysis.

源语言英语
主期刊名Proceedings of 2021 IEEE International Conference on Sensing, Diagnostics, Prognostics, and Control, SDPC 2021
编辑Xuyun Fu, Shengcai Deng, Diego Cabrera, Yongjian Zhang, Zhiqiang Pu
出版商Institute of Electrical and Electronics Engineers Inc.
275-281
页数7
ISBN(电子版)9781665449762
DOI
出版状态已出版 - 2021
活动2021 IEEE International Conference on Sensing, Diagnostics, Prognostics, and Control, SDPC 2021 - Weihai, 中国
期限: 13 8月 202115 8月 2021

出版系列

姓名Proceedings of 2021 IEEE International Conference on Sensing, Diagnostics, Prognostics, and Control, SDPC 2021

会议

会议2021 IEEE International Conference on Sensing, Diagnostics, Prognostics, and Control, SDPC 2021
国家/地区中国
Weihai
时期13/08/2115/08/21

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