Reduced graphene oxide wrapped sulfur nanocomposite as cathode material for lithium sulfur battery

Mahesh Shastri, Manjunath Shetty, Navya Rani M, Murthy Muniyappa, Muralidhar Sindhu Sree, Vinay Gangaraju, Chethan Sabanhalli, S. V. Lokesh, Prasanna D. Shivaramu, Dinesh Rangappa

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Sulfur has been investigated as an active electrode material for secondary batteries due to theoretically specific capacity compared to the lithium-ion battery. In the present study, reduced graphene oxide (RGO) sheets wrapped Sulfur nanocomposite (S-RGO) synthesized by hydrothermal method and confirmed the wrapping of RGO sheets on Sulfur nanoparticles by various analytical techniques. The synthesized S-RGO nanocomposite demonstrated improved interaction of sulfur nanoparticles with RGO which is confirmed through XPS analysis. The synthesized S-RGO resulted in significantly improved reversible specific capacity and higher rate capability (823 mAh/g at 0.1C, 400 mAh/g at 1C) with 77 wt% of sulfur loading amount on the cathode of the Li–S battery. Therefore, the present study opens up new insights into sustainable development in the field of Li–S battery energy storage applications.

Original languageEnglish
Pages (from-to)14790-14797
Number of pages8
JournalCeramics International
Volume47
Issue number10
DOIs
Publication statusPublished - 15-05-2021

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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