Electric circuit modeling of lithium-sulfur batteries during discharging state

Daniel-Ioan Stroe, Vaclav Knap, Maciej Jozef Swierczynski, Erik Schaltz

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

4 Citations (Scopus)
334 Downloads (Pure)

Abstract

Lithium-ion batteries are characterized by having very good performance in terms of efficiency, lifetime, and selfdischarge, which allowed them to become the major player in the electric vehicle applications. However, they were not able to totally overcome the EV range anxiety. Thus, research is carried out nowadays to develop batteries with even higher gravimetric energy density, which should allow a substantial range increase. One of the technologies, which should be able to meet the range requirements is the Lithium-Sulfur (Li-S) battery. Thanks to the extensive research and development efforts, these cells are close to enter the market, being evaluate in various projects. In this paper, we have proposed an electrical circuit model for a Li-S pouch cell, which was parameterized based on extensive electrochemical impedance spectroscopy measurements. The developed model was verified using static and pulse discharge profiles, showing a good accuracy in predicting the voltage of the tested Li-S battery cell.
Original languageEnglish
Title of host publicationProceedings of 2017 IEEE Energy Conversion Congress and Exposition (ECCE)
Number of pages6
PublisherIEEE
Publication dateOct 2017
Pages1024-1029
ISBN (Electronic)978-1-5090-2998-3
DOIs
Publication statusPublished - Oct 2017
EventIEEE Energy Conversion Congress & Exposition, ECCE 2017 - Cincinnati, Ohio, United States
Duration: 1 Oct 20175 Oct 2017
http://www.ieee-ecce.org/2017/

Conference

ConferenceIEEE Energy Conversion Congress & Exposition, ECCE 2017
Country/TerritoryUnited States
CityCincinnati, Ohio
Period01/10/201705/10/2017
Internet address
SeriesIEEE Energy Conversion Congress and Exposition
ISSN2329-3721

Keywords

  • Lithium-Sulfur battery
  • Modeling
  • Electric circuit
  • Electrochemical impedance spectroscopy
  • Discharging

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