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Superior electrochemical performance of sulfur/graphene nanocomposite material for high-capacity lithium-sulfur batteries

Journal Article


Abstract


  • Sulfur/graphene nanocomposite material has been prepared by incorporating sulfur into the graphene frameworks through a melting process. Field-emission scanning electron microscope analysis shows a homogeneous distribution of sulfur in the graphene nanosheet matrix. The sulfur/graphene nanocomposite exhibits a super-high lithium-storage capacity of 1580 mAh g -1 and a satisfactory cycling performance in lithium-sulfur cells. The enhancement of the reversible capacity and cycle life could be attributed to the flexible graphene nanosheet matrix, which acts as a conducting medium and a physical buffer to cushion the volume change of sulfur during the lithiation and delithiation process. Graphene-based nanocomposites can significantly improve the electrochemical performance of lithium-sulfur batteries. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

UOW Authors


  •   Wang, Guoxiu (external author)

Publication Date


  • 2012

Citation


  • Wang, B., Li, K., Su, D., Ahn, H., & Wang, G. (2012). Superior electrochemical performance of sulfur/graphene nanocomposite material for high-capacity lithium-sulfur batteries. Chemistry - An Asian Journal, 7(7), 1637-1643. doi:10.1002/asia.201200004

Scopus Eid


  • 2-s2.0-84862510623

Start Page


  • 1637

End Page


  • 1643

Volume


  • 7

Issue


  • 7

Abstract


  • Sulfur/graphene nanocomposite material has been prepared by incorporating sulfur into the graphene frameworks through a melting process. Field-emission scanning electron microscope analysis shows a homogeneous distribution of sulfur in the graphene nanosheet matrix. The sulfur/graphene nanocomposite exhibits a super-high lithium-storage capacity of 1580 mAh g -1 and a satisfactory cycling performance in lithium-sulfur cells. The enhancement of the reversible capacity and cycle life could be attributed to the flexible graphene nanosheet matrix, which acts as a conducting medium and a physical buffer to cushion the volume change of sulfur during the lithiation and delithiation process. Graphene-based nanocomposites can significantly improve the electrochemical performance of lithium-sulfur batteries. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

UOW Authors


  •   Wang, Guoxiu (external author)

Publication Date


  • 2012

Citation


  • Wang, B., Li, K., Su, D., Ahn, H., & Wang, G. (2012). Superior electrochemical performance of sulfur/graphene nanocomposite material for high-capacity lithium-sulfur batteries. Chemistry - An Asian Journal, 7(7), 1637-1643. doi:10.1002/asia.201200004

Scopus Eid


  • 2-s2.0-84862510623

Start Page


  • 1637

End Page


  • 1643

Volume


  • 7

Issue


  • 7