In Situ Formation of Protective Coatings on Sulfur Cathodes in Lithium Batteries with LiFSI‐Based Organic Electrolytes | Semantic Scholar (2025)

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@article{Kim2015InSF, title={In Situ Formation of Protective Coatings on Sulfur Cathodes in Lithium Batteries with LiFSI‐Based Organic Electrolytes}, author={Hyea Kim and Feixiang Wu and Jung Tae Lee and Naoki Nitta and Huan Lin and Martin Oschatz and Won Il Cho and Stefan Kaskel and Oleg A Borodin and Gleb Yushin}, journal={Advanced Energy Materials}, year={2015}, volume={5}, url={https://api.semanticscholar.org/CorpusID:96904927}}
  • Hyea Kim, Feixiang Wu, G. Yushin
  • Published 1 March 2015
  • Materials Science, Chemistry, Engineering
  • Advanced Energy Materials

Development of sulfur cathodes with 100% coulombic efficiency (CE) and good cycle stability remains challenging due to the polysulfide dissolution in electrolytes. Here, it is demonstrated that electrochemical reduction of lithium bis(fluorosulfonyl)imide (LiFSI) based electrolytes at a potential close to the sulfur cathode operation forms in situ protective coating on both cathode and anode surfaces. Quantum chemistry studies suggest the coating formation is initiated by the FSI(‐F) anion…

205 Citations

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