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

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-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. © 2024 IEEE.
Original languageEnglish
Title of host publicationIECON 2024 - 50th Annual Conference of the IEEE Industrial Electronics Society - Proceedings
PublisherIEEE
ISBN (Electronic)978-1-6654-6454-3
DOIs
Publication statusPublished - Nov 2024
Externally publishedYes
Event50th Annual Conference of the IEEE Industrial Electronics Society, IECON 2024 - Chicago, United States
Duration: 3 Nov 2024 → 6 Nov 2024
https://ieeexplore.ieee.org/xpl/conhome/10904979/proceeding

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
PlaceUnited States
CityChicago
Period3/11/24 → 6/11/24
Internet address

Funding

The authors would like to thank the supports from the Hong Kong RGC Theme-based Research Project T23-708/24-N and he General Research Fund 15204624.

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

Research Keywords

  • dynamic modeling
  • electrochemical battery model
  • state of charge

RGC Funding Information

  • RGC-funded

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