4.8 Article

Graphene/Sulfur Hybrid Nanosheets from a Space-Confined Sauna Reaction for High-Performance Lithium-Sulfur Batteries

Journal

ADVANCED MATERIALS
Volume 27, Issue 39, Pages 5936-5942

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201502668

Keywords

composite; graphene; interfacial engineering; lithium-sulfur battery; sulfur cathode

Funding

  1. Innovation and Technology Fund [ITS/029/14]
  2. Hong Kong Polytechnic University [G-UC71]
  3. 863 Project of China [2013AA031903]
  4. Chutian Scholarship of Hubei Province of China
  5. National Natural Science Foundation of China [51302219]
  6. Specialized Research Fund for the Doctoral Program of Higher Education of China [20136102120024]

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A space-confined sauna reaction system is introduced for the simultaneous reduction and functionalization of graphene oxide to unique graphene-sulfur hybrid nanosheets, in which thin layers of amorphous sulfur are tightly anchored on the graphene sheet via strong chemical bonding. Upon being used as the cathode material in lithium-sulfur batteries, the as-synthesized composite shows an excellent electrochemical performance.

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