Generalized Characterization Methodology for Performance Modelling of Lithium-Ion Batteries

Daniel Loan Stroe, Maciej Jozef Swierczynski, Ana-Irina Stroe, Søren Knudsen Kær

Research output: Contribution to journalJournal articleResearchpeer-review

74 Citations (Scopus)
370 Downloads (Pure)

Abstract

Lithium-ion (Li-ion) batteries are complex energy storage devices with their performance behavior highly dependent on the operating conditions (i.e., temperature, load current, and state-of-charge (SOC)). Thus, in order to evaluate their techno-economic viability for a certain application, detailed information about Li-ion battery performance behavior becomes necessary.
This paper proposes a comprehensive seven-step methodology for laboratory characterization of Li-ion batteries, in which the battery’s performance parameters (i.e., capacity, open-circuit voltage (OCV), and impedance) are determined and their dependence on the operating conditions are obtained. Furthermore, this paper proposes a novel hybrid procedure for parameterizing the batteries’ equivalent electrical circuit (EEC), which is used to emulate the batteries’ dynamic behavior. Based on this novel parameterization procedure, the performance model of the studied Li-ion battery is developed and its accuracy is successfully verified (maximum error lower than 5% and a mean error below 8.5 mV) for various load profiles (including a real application profile), thus validating the proposed seven-step characterization methodology.
Original languageEnglish
Article number37
JournalBatteries
Volume2
Issue number4
Number of pages20
ISSN2313-0105
DOIs
Publication statusPublished - Dec 2016

Keywords

  • Lithium-ion battery
  • Characterization
  • Methodology
  • Performance Modeling
  • Electrochemical Impedance Spectroscopy
  • DC pulses
  • Validation

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