Insight into the failure mechanism of large-scale cylindrical lithium-sulphur cells
Surasak Kaenket1, Salatan Duangdangchote1, Kan Homlamai1
1Centre of Excellence for Energy Storage Technology (CEST), Department of Chemical and Biomolecular Engineering, School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand. montree.s@vistec.ac.th.
Chemical Communications (Cambridge, England)
|August 3, 2023
Abstract:
Li-S batteries with a sulphur loading content of 5 mg cm-2 were produced as large-scale 18 650 cylindrical cells. We have found that a key failure mode of cylindrical Li-S battery cells is the severe capacity fading during the galvanostatic charge-discharge process due to the corrosion of the electrodes, the electrolyte decomposition, and the severe polysulphide shuttling effect.
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