Preparation of Graphene Coated Carbon Nanotube-Sulfur Composite and Its Performance for Lithium-Sulfur Battery

被引：6
|
作者：
Zheng Jia-Fei [1 ]
Zheng Ming-Bo [2 ]
Li Nian-Wu [1 ]
Lu Hong-Ling [1 ]
Qiu Lan [1 ]
Cao Jie-Ming [1 ]
Ji Guang-Bin [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanomat Res Inst, Nanjing 210016, Jiangsu, Peoples R China
[2] Nanjing Univ, Sch Elect Sci & Engn, Nanjing Natl Lab Microstruct, Nanjing 210093, Jiangsu, Peoples R China
来源：
CHINESE JOURNAL OF INORGANIC CHEMISTRY | 2013年 / 29卷 / 07期
关键词：
graphene; lithium-sulfur battery; carbon nanotube; sulfur; HIGH-CAPACITY; CATHODE; OXIDE; IMPROVEMENT;
D O I：
10.3969/j.issn.1001-4861.2013.00.218
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
To solve the main problems encountered in the lithium-sulfur battery research and practical application, a simple and effective hydrothermal reduction of graphene oxide was employed to encapsulate commercial carbon nanotube-sulfur (CNT-S) nanocomposite in this study, then an effective type of graphene coated CNT-S nanostructure was formed. The polysulphide anions diffusion phenomenon was effectively restrained by the graphene coating structure. The nanocomposites were characterized by X-ray diffraction and scanning electron microscope. The results indicated that elemental sulfur was uniformly distributed across the CNT, and a layer of graphene coated on the surface of CNT-S nanocomposite. The electrochemical test results showed that the graphene coating nanostructure obviously improved the lithium-sulfur battery performance of the CNT-S nanocomposite.
引用
收藏
页码：1355 / 1360
页数：6
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