Sulfur@metal cotton with superior cycling stability as cathode materials for rechargeable lithium-sulfur batteries

被引:29
作者
Zhang, J. X. [1 ,2 ]
Ma, Z. S. [1 ,2 ]
Cheng, J. J. [1 ,2 ]
Wang, Yan [3 ]
Wu, C. [1 ,2 ]
Pan, Y. [1 ,2 ]
Lu, C. [4 ]
机构
[1] Xiangtan Univ, Key Lab Low Dimens Mat & Applicat Technol, Minist Educ, Xiangtan 411105, Hunan, Peoples R China
[2] Xiangtan Univ, Sch Mat Sci & Engn, Xiangtan 411105, Hunan, Peoples R China
[3] Hunan Univ Sci & Technol, Sch Informat & Elect Engn, Xiangtan 411201, Hunan, Peoples R China
[4] Curtin Univ, Dept Mech Engn, Perth, WA 6845, Australia
基金
国家高技术研究发展计划(863计划); 中国国家自然科学基金;
关键词
Li-S battery; Metal cotton; Cathode; Electrochemistry; PERFORMANCE; COMPOSITE; ELECTRODE; OXIDE;
D O I
10.1016/j.jelechem.2014.12.003
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Lithium-sulfur (Li-S) batteries have great potential for some high energy applications such as electric vehicles and smart grids due to the high capacity, natural abundance, low cost and environmental friendliness of sulfur. In this work, we use the metal cotton to absorb sulfur firmly as cathode material for Li-S batteries. The as-designed sulfur@metal cotton (S@MC) composite shows a good cycling stability and rate capability. The capacity is retained at 480 mA h g(-1) at 0.1 C after 200 cycles. Furthermore, for higher rates, the S@MC cathode material also exhibits stable capacity during different periods. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:184 / 187
页数:4
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