共 32 条
Preparation of Reduced Graphene Oxide Aerogel and its Application in Lithium Sulfur Battery
被引:2
作者:

Xiao, Jianrong
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Guilin Univ Technol, Coll Sci, Guilin 541004, Guangxi Provinc, Peoples R China Guilin Univ Technol, Coll Sci, Guilin 541004, Guangxi Provinc, Peoples R China

Yang, Zhiyun
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Guilin Univ Technol, Coll Sci, Guilin 541004, Guangxi Provinc, Peoples R China Guilin Univ Technol, Coll Sci, Guilin 541004, Guangxi Provinc, Peoples R China

Wang, Hongzhe
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h-index: 0
机构:
Southeast Univ, Sch Mat Sci & Engn, Sci & Engn, Nanjing 211189, Jiangsu, Peoples R China Guilin Univ Technol, Coll Sci, Guilin 541004, Guangxi Provinc, Peoples R China

Guo, Yafang
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机构:
Guilin Univ Technol, Coll Sci, Guilin 541004, Guangxi Provinc, Peoples R China Guilin Univ Technol, Coll Sci, Guilin 541004, Guangxi Provinc, Peoples R China

Tao, Zengren
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h-index: 0
机构:
Guilin Univ Technol, Coll Sci, Guilin 541004, Guangxi Provinc, Peoples R China Guilin Univ Technol, Coll Sci, Guilin 541004, Guangxi Provinc, Peoples R China
机构:
[1] Guilin Univ Technol, Coll Sci, Guilin 541004, Guangxi Provinc, Peoples R China
[2] Southeast Univ, Sch Mat Sci & Engn, Sci & Engn, Nanjing 211189, Jiangsu, Peoples R China
来源:
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
|
2017年
/
12卷
/
12期
关键词:
RGO-gel;
coating layer;
Li-S battery;
electrochemical performance;
ELECTROCHEMICAL PERFORMANCE;
POLYMER ELECTROLYTE;
CARBON NANOTUBES;
CATHODE;
ION;
DEGRADATION;
NITROPHENOL;
REDUCTION;
COMPOSITE;
HYDROXIDE;
D O I:
10.20964/2017.12.450
中图分类号:
O646 [电化学、电解、磁化学];
学科分类号:
081704 ;
摘要:
A facile method was used to prepare novel nitrogen-doped sulfur-based compound material coated with reduced-graphene-oxide aerogel NCNT/S(RGO-gel) composite. As coating layer, the material was systematically studied through X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy, and electrochemical test. NCNT/S(RGO-gel) electrode showed first discharge specific capacity of 1403.7 mAh.g(-1) under 500 mA/g density. The material also exhibited outstanding rate capability and long-term cycle stability. Results showed that RGO-gel coated composite electrode retained its discharge specific capacity of 912.4 mAh/g after 175 cycles under 500 mA/g current density. The composite electrode presented capacity retention rate of 80%. Improved electrochemical performance was mainly ascribed to RGO-gel, which not only reduced dissolution of sulfur polymer (S-n(2-)) but also significantly improved conductivity. NCNT also served as bridge between RGO-gel layers, significantly shortening the path for lithium-ion transport. Thus, novel NCNT/S(RGO-gel) composite can act as potential positive electrode for high performance Li-S batteries.
引用
收藏
页码:11108 / 11121
页数:14
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