Sulfur-graphene composite for rechargeable lithium batteries

Sulfur-graphene (S-GNS) composites have been synthesized by heating a mixture of graphene nanosheets and elemental sulfur. According to field emission electron microscopy, scanning electron microscopy with energy dispersive X-ray mapping, Raman spectroscopy, and thermogravimetric analysis, sulfur particles were uniformly coated onto the surface of the graphene nanosheets. The electrochemical results show that the sulfur-graphene nanosheet composite significantly improved the electrical conductivity, the capacity, and the cycle stability in a lithium cell compared with the bare sulfur electrode.

[1]  Jun Chen,et al.  Sulfur–mesoporous carbon composites in conjunction with a novel ionic liquid electrolyte for lithium rechargeable batteries , 2008 .

[2]  W. Choi,et al.  Synthesis of Graphene and Its Applications: A Review , 2010 .

[3]  G. Graff,et al.  Ternary self-assembly of ordered metal oxide-graphene nanocomposites for electrochemical energy storage. , 2010, ACS nano.

[4]  C. Liang,et al.  Hierarchically Structured Sulfur/Carbon Nanocomposite Material for High-Energy Lithium Battery , 2009 .

[5]  John Aurie Dean,et al.  Lange's Handbook of Chemistry , 1978 .

[6]  R. Ruoff,et al.  Graphene-based ultracapacitors. , 2008, Nano letters.

[7]  P. Thordarson,et al.  Gram-scale production of graphene based on solvothermal synthesis and sonication. , 2009, Nature nanotechnology.

[8]  A. Ishitani,et al.  Raman spectra of diamondlike amorphous carbon films , 1988 .

[9]  Xinping Qiu,et al.  Improvement of cycle property of sulfur-coated multi-walled carbon nanotubes composite cathode for lithium/sulfur batteries , 2009 .

[10]  Emanuel Peled,et al.  The electrochemical behavior of polysulfides in tetrahydrofuran , 1985 .

[11]  Nansheng Xu,et al.  Sulfur-carbon nano-composite as cathode for rechargeable lithium battery based on gel electrolyte , 2002 .

[12]  Jun Chen,et al.  Sulphur-polypyrrole composite positive electrode materials for rechargeable lithium batteries , 2006 .

[13]  L. Nazar,et al.  A highly ordered nanostructured carbon-sulphur cathode for lithium-sulphur batteries. , 2009, Nature materials.

[14]  Harold H. Kung,et al.  Silicon nanoparticles-graphene paper composites for Li ion battery anodes. , 2010, Chemical communications.

[15]  Zhen Zhou,et al.  Synthesis and Electrochemical Performance of Sulfur/Highly Porous Carbon Composites , 2009 .

[16]  Shichao Zhang,et al.  Nano-wire networks of sulfur–polypyrrole composite cathode materials for rechargeable lithium batteries , 2008 .

[17]  Zaiping Guo,et al.  Investigation of discharge reaction mechanism of lithium|liquid electrolyte|sulfur battery , 2009 .

[18]  Jingying Xie,et al.  Lithium storage in conductive sulfur-containing polymers , 2004 .

[19]  Ji‐Guang Zhang,et al.  Self-assembled TiO2-graphene hybrid nanostructures for enhanced Li-ion insertion. , 2009, ACS nano.