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Publication Detail
Investigation of the Effect of Temperature on Lithium‐Sulfur Cell Cycle Life Performance Using System Identification and X‐Ray Tomography
  • Publication Type:
    Journal article
  • Authors:
    Shateri N, Auger DJ, Fotouhi A, Brighton J, Du W, Owen RE, Brett DJL, Shearing PR
  • Publisher:
  • Publication date:
  • Journal:
    Batteries & Supercaps
  • Article number:
  • Status:
  • Language:
  • Keywords:
    Egradation modelling, electrochemistry, energy Conversion, lithium-sulfur battery, temperature, 3D gas thickness, X-ray tomography
  • Notes:
    © 2022 The Authors. Batteries & Supercaps published by Wiley-VCH GmbH This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
In this study, cycle life performance of a prototype lithium-sulfur (Li−S) pouch cell is investigated using system identification and X-ray tomography methods. Li−S cells are subjected to characterization and ageing tests while kept inside a controlled-temperature chamber. After completing the experimental tests, two analytical approaches are used: i) The parameter variations of an equivalent-circuit model due to ageing are determined using a system identification technique. ii) Physical changes of the aged Li−S cells are analyzed using X-ray tomography. The results demonstrate that Li−S cell's degradation is significantly affected by temperature. Comparing to 10 °C, Li−S cell capacity fade happens 1.4 times faster at 20 °C whereas this number increases to 3.3 at 30 °C. In addition, X-ray results show a significant swelling when temperature rises from 10 to 20 °C, correspondingly the gas volume increases from 13 to 62 mm3.
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