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

被引：7

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

页码：1355 / 1360

页数：6

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