A Dynamic Coupled Electro-Thermal Equivalent Circuit Model with Reversible Entropy Heat for Lithium-Ion Batteries

  • Kerui Li
  • , Hui Wen Rebecca Liang
  • , Junming Zeng
  • , Shu Yuen Ron Hui

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Electrical, thermal, and chemical effects of batteries must be considered together for accurate modeling of the battery characteristics. Chemical effects of Lithium-ion batteries involve battery relaxation, recovery effect and reversible entropy heat. Previous hybrid kinetic circuit model can handle the first two chemical effects. This study incorporates the reversible entropy heat in a coupled electrothermal equivalent circuit to form a dynamic electro-thermal battery model. The new battery model offers accurate dynamic performance as evidenced by good agreements between model predictions and practical measurements in terms of battery voltage, current, temperature and state-of-charge. The error in battery surface temperature prediction is kept within 0.5%. It is suitable for both circuit simulation and practical real-time control.

Original languageEnglish
Title of host publicationIECON 2024 - 50th Annual Conference of the IEEE Industrial Electronics Society, Proceedings
PublisherIEEE Computer Society
Pages1-6
Number of pages6
ISBN (Electronic)9781665464543
DOIs
Publication statusPublished - Nov 2024
Event50th Annual Conference of the IEEE Industrial Electronics Society, IECON 2024 - Chicago, United States
Duration: 3 Nov 20246 Nov 2024

Publication series

NameIECON Proceedings (Industrial Electronics Conference)
ISSN (Print)2162-4704
ISSN (Electronic)2577-1647

Conference

Conference50th Annual Conference of the IEEE Industrial Electronics Society, IECON 2024
Country/TerritoryUnited States
CityChicago
Period3/11/246/11/24

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • dynamic modeling
  • electrochemical battery model
  • state of charge

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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