State of charge modeling of lithium-ion batteries using dual exponential functions

Ting Jung Kuo, Kung Yen Lee, Chien Kang Huang, Jau Horng Chen, Wei Li Chiu, Chih Fang Huang, Shuen De Wu

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A mathematical model is developed by fitting the discharging curve of LiFePO4 batteries and used to investigate the relationship between the state of charge and the closed-circuit voltage. The proposed mathematical model consists of dual exponential terms and a constant term which can fit the characteristics of dual equivalent RC circuits closely, representing a LiFePO4 battery. One exponential term presents the stable discharging behavior and the other one presents the unstable discharging behavior and the constant term presents the cut-off voltage.

Original languageEnglish
Pages (from-to)331-338
Number of pages8
JournalJournal of Power Sources
Volume315
DOIs
Publication statusPublished - 2016 May 31

Fingerprint

Exponential functions
exponential functions
electric batteries
mathematical models
lithium
RC circuits
Mathematical models
Networks (circuits)
Electric potential
electric potential
equivalent circuits
ions
cut-off
curves
LiFePO4
Lithium-ion batteries

Keywords

  • Discharging behaviors
  • Exponential modeling
  • LiFePO batteries
  • State of charge

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

State of charge modeling of lithium-ion batteries using dual exponential functions. / Kuo, Ting Jung; Lee, Kung Yen; Huang, Chien Kang; Chen, Jau Horng; Chiu, Wei Li; Huang, Chih Fang; Wu, Shuen De.

In: Journal of Power Sources, Vol. 315, 31.05.2016, p. 331-338.

Research output: Contribution to journalArticle

Kuo, Ting Jung ; Lee, Kung Yen ; Huang, Chien Kang ; Chen, Jau Horng ; Chiu, Wei Li ; Huang, Chih Fang ; Wu, Shuen De. / State of charge modeling of lithium-ion batteries using dual exponential functions. In: Journal of Power Sources. 2016 ; Vol. 315. pp. 331-338.
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AU - Wu, Shuen De

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