State-of-charge estimation for lithium-ion batteries via a coupled thermal-electrochemical model

Shuxia Tang, Yebin Wang, Zafer Sahinoglu, Toshihiro Wada, Satoshi Hara, Miroslav Krstic

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Scopus citations

Abstract

Accurate online state-of-charge (SoC) estimation is a basic need and also a fundamental challenge for battery applications. In order to achieve accurate SoC estimation for the lithium-ion batteries, we employ a coupled thermal-electrochemical model. This coupled system of an ordinary differential equation (ODE) and a partial differential equation (PDE) is simpler than the Doyle-Fuller-Newman (DFN) model, and is more accurate than the single particle model (SPM) alone. Thus, it could serve as a better fit of model for a full state observer design and accurate SoC estimation. PDE backstepping approach is utilized to develop a Luenberger observer for the electrode concentration, and estimation effectiveness of the proposed method is verified by simulation results.

Original languageEnglish
Title of host publicationACC 2015 - 2015 American Control Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages5871-5877
Number of pages7
ISBN (Electronic)9781479986842
DOIs
StatePublished - Jul 28 2015
Event2015 American Control Conference, ACC 2015 - Chicago, United States
Duration: Jul 1 2015Jul 3 2015

Publication series

NameProceedings of the American Control Conference
Volume2015-July
ISSN (Print)0743-1619

Conference

Conference2015 American Control Conference, ACC 2015
CountryUnited States
CityChicago
Period07/1/1507/3/15

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    Tang, S., Wang, Y., Sahinoglu, Z., Wada, T., Hara, S., & Krstic, M. (2015). State-of-charge estimation for lithium-ion batteries via a coupled thermal-electrochemical model. In ACC 2015 - 2015 American Control Conference (pp. 5871-5877). [7172260] (Proceedings of the American Control Conference; Vol. 2015-July). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ACC.2015.7172260