CNT-intercalated rGO/sulfur laminated structure for high-rate and long-life lithium-sulfur batteries

被引：15

作者：

Yuan, Jingjing ^{[1
,2
]}

Zheng, Xiaoke ^{[2
]}

Jiang, Ling ^{[2
]}

Yao, Dachuan ^{[2
]}

He, Guangyu ^{[2
]}

Chen, Haiqun ^{[2
]}

Che, Jianfei ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Jiangsu, Peoples R China

[2] Changzhou Univ, Key Lab Adv Catalyt Mat & Technol, Changzhou 213164, Jiangsu, Peoples R China

来源：

MATERIALS LETTERS | 2018年 / 219卷

基金：

中国国家自然科学基金;

关键词：

Nanocomposites; Carbon materials; Laminated structure; Li-S batteries; Electrical properties; GRAPHENE; FABRICATION;

D O I：

10.1016/j.matlet.2018.02.054

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Lithium-sulfur (Li-S) batteries represent one of the next-generation Li-ion batteries. However, the poor conductivity and large volumetric expansion of sulfur result in low rate performance and unfavorable cycle stability. Herein, a laminated structure of sulfur/reduced graphene oxide intercalated by carbon nanotube (CNT-rGO/S) composites was designed and fabricated for the first time to address the issue. The composites prepared via hydrothermal coprecipitation was endowed a perfect crystal and highly integrated structure, which retained a good electrical conductivity and accommodated the sulfur volume expansion due to the sufficient free space between the CNT-intercalated graphene layers. The CNT-rGO/S cathode exhibits a good capacity of 783.3 mAh g(-1) at 0.5 C and a desirable cycling stability with 77.2% of the capacity remaining after 1000 cycles even at a rate as high as 5 C, which offers great potential for practical applications in Li-S batteries. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：68 / 71

页数：4

共 16 条

[11] Mass production of graphene oxide from expanded graphite [J].

Sun, Ling ;

Fugetsu, Bunshi .

MATERIALS LETTERS, 2013, 109 :207-210

[12]

Wang Q., 2012, SMALL, V8, P1130

[13] Hydrothermal synthesis of crystallized nano-particles of rare earth-doped zirconia and hafnia [J].

Yoshimura, M ;

Somiya, S .

MATERIALS CHEMISTRY AND PHYSICS, 1999, 61 (01) :1-8

[14] Efficient Fabrication of Hierarchically Porous Graphene-Derived Aerogel and Its Application in Lithium Sulfur Battery [J].

Zhang, Kai ;

Qin, Furong ;

Lai, Yanqing ;

Li, Jie ;

Lei, Xiaoke ;

Wang, Mengran ;

Lu, Hai ;

Fang, Jing .

ACS APPLIED MATERIALS & INTERFACES, 2016, 8 (09) :6072-6081

[15] Encapsulating sulfur into a hybrid porous carbon/CNT substrate as a cathode for lithium-sulfur batteries [J].

Zhang, Ze ;

Jing, Hang-Kun ;

Liu, Sheng ;

Li, Guo-Ran ;

Gao, Xue-Ping .

JOURNAL OF MATERIALS CHEMISTRY A, 2015, 3 (13) :6827-6834

[16] Interconnected carbon nanotube/graphene nanosphere scaffolds as free-standing paper electrode for high-rate and ultra-stable lithium-sulfur batteries [J].

Zhu, Lin ;

Peng, Hong-Jie ;

Liang, Jiyuan ;

Huang, Jia-Qi ;

Chen, Cheng-Meng ;

Guo, Xuefeng ;

Zhu, Wancheng ;

Li, Peng ;

Zhang, Qiang .

NANO ENERGY, 2015, 11 :746-755

← 1 2 →