Enhanced Cycling Stability of Lithium Sulfur Batteries Using Sulfur鈥揚olyaniline鈥揋raphene Nanoribbon Composite Cathodes

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• 作者：Lei Li ; Gedeng Ruan ; Zhiwei Peng ; Yang Yang ; Huilong Fei ; Abdul-Rahman O. Raji ; Errol L. G. Samuel ; James M. Tour
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2014
• 出版时间：September 10, 2014
• 年：2014
• 卷：6
• 期：17
• 页码：15033-15039
• 全文大小：428K
• ISSN：1944-8252

文摘

A hierarchical nanocomposite material of graphene nanoribbons combined with polyaniline and sulfur using an inexpensive, simple method has been developed. The resulting composite, characterized by scanning electron microscopy, transmission electron microscopy, X-ray photoelectron microscopy, and X-ray diffraction analysis, has a good rate performance and excellent cycling stability. The synergistic combination of electrically conductive graphene nanoribbons, polyaniline, and sulfur produces a composite with high performance. The method developed here is practical for the large-scale development of cathode materials for lithium sulfur batteries.

Keywords:

lithium sulfur battery; polyaniline; graphene nanoribbons; sulfur; energy storage