Encapsulating sulfur into highly graphitized hollow carbon spheres as high performance cathode for lithium-sulfur batteries

被引：11

作者：

Liu, Shuangke ^{[1
]}

Hong, Xiaobin ^{[1
]}

Li, Yujie ^{[1
]}

Xu, Jing ^{[1
]}

Zheng, Chunman ^{[1
]}

Xie, Kai ^{[1
]}

机构：

[1] Natl Univ Def Technol, Coll Aerosp Sci & Engn, Changsha 410073, Hunan, Peoples R China

来源：

RSC ADVANCES | 2016年 / 6卷 / 100期

关键词：

LI-S BATTERY; MESOPOROUS CARBON; GRAPHENE OXIDE; ONE-STEP; COMPOSITE; NANOTUBES; CAPACITY; NANOSTRUCTURE; NANOSPHERES; STABILITY;

D O I：

10.1039/c6ra22652c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Encapsulating sulfur into a highly graphitized hollow carbon sphere (GHCS) is proposed as sulfur cathode for the first time. After annealing the amorphous hollow carbon sphere (HCS) at a high temperature of 2600 degrees C, the obtained GHCS shows polyhedral morphology and few layers graphene characteristic with extremely low oxygen content. When used as sulfur cathode, the S@GHCS composite delivers a high discharge capacity of similar to 800 mA h g(-1) at 4C rate and high capacity retention of 93.7% after 240 cycles at 1C rate, demonstrating much better rate capability and cycling performance compared to those of S@HCS composite.

引用

页码：98035 / 98041

页数：7

共 51 条

[1] Hydrothermal carbon-based nanostructured hollow spheres as electrode materials for high-power lithium-sulfur batteries [J].

Brun, Nicolas ;

Sakaushi, Ken ;

Yu, Linghui ;

Giebeler, Lars ;

Eckert, Juergen ;

Titirici, Magdalena M. .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2013, 15 (16) :6080-6087

[2] Multi-shelled hollow carbon nanospheres for lithium-sulfur batteries with superior performances [J].

Chen, Shuangqiang ;

Huang, Xiaodan ;

Sun, Bing ;

Zhang, Jinqiang ;

Liu, Hao ;

Wang, Guoxiu .

JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (38) :16199-16207

[3] Sulfur-Impregnated Activated Carbon Fiber Cloth as a Binder-Free Cathode for Rechargeable Li-S Batteries [J].

Elazari, Ran ;

Salitra, Gregory ;

Garsuch, Arnd ;

Panchenko, Alexander ;

Aurbach, Doron .

ADVANCED MATERIALS, 2011, 23 (47) :5641-+

[4] New Approaches for High Energy Density Lithium-Sulfur Battery Cathodes [J].

Evers, Scott ;

Nazar, Linda F. .

ACCOUNTS OF CHEMICAL RESEARCH, 2013, 46 (05) :1135-1143

[5] Graphene-enveloped sulfur in a one pot reaction: a cathode with good coulombic efficiency and high practical sulfur content [J].

Evers, Scott ;

Nazar, Linda F. .

CHEMICAL COMMUNICATIONS, 2012, 48 (09) :1233-1235

[6] One-step synthesis of silica@resorcinol-formaldehyde spheres and their application for the fabrication of polymer and carbon capsules [J].

Fuertes, Antonio B. ;

Valle-Vigon, Patricia ;

Sevilla, Marta .

CHEMICAL COMMUNICATIONS, 2012, 48 (49) :6124-6126

[7] Sulfur-Impregnated Disordered Carbon Nanotubes Cathode for Lithium-Sulfur Batteries [J].

Guo, Juchen ;

Xu, Yunhua ;

Wang, Chunsheng .

NANO LETTERS, 2011, 11 (10) :4288-4294

[8] Effect of multiwalled carbon nanotubes on electrochemical properties of lithium sulfur rechargeable batteries [J].

Han, SC ;

Song, MS ;

Lee, H ;

Kim, HS ;

Ahn, HJ ;

Lee, JY .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2003, 150 (07) :A889-A893

[9] Tailoring Porosity in Carbon Nanospheres for Lithium-Sulfur Battery Cathodes [J].

He, Guang ;

Evers, Scott ;

Liang, Xiao ;

Cuisinier, Marine ;

Garsuch, Arnd ;

Nazar, Linda F. .

ACS NANO, 2013, 7 (12) :10920-10930

[10] High "C" rate Li-S cathodes: sulfur imbibed bimodal porous carbons [J].

He, Guang ;

Ji, Xiulei ;

Nazar, Linda .

ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (08) :2878-2883

← 1 2 3 4 5 6 →