期刊
JOURNAL OF POWER SOURCES
卷 285, 期 -, 页码 478-484出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2015.03.138
关键词
Carbon black nanoparticles; Cycling stability; Lithium-sulfur batteries
资金
- Link Project of the National Natural Science Foundation of China and Guangdong Province [U1301244]
- Guangdong Province Science & Technology Foundation [20118050300008]
- Natural Science Foundation of Guangdong Province [2014A030313159]
- Chinese Universities Basic Research Founding
- Sino-Greek Science and Technology Cooperation Project [2013DFG2590]
Sulfur is a promising cathode material with a high theoretical capacity of 1672 mAh g(-1), but the challenges of the low electrical conductivity of sulfur and the high solubility of polysulfide intermediates still hinder its practical application. In this work, we design and synthesize a special carbon black nanoparticle-sulfur composite cathode material (NCB-S@NCB) with a novel structure and a high sulfur content of 84 wt% for lithium-sulfur battery application. The NCB-S@NCB composite cathode delivers a high initial discharge capacity of 1258 mAh g(-1) and still maintains a reversible capacity of 865 mAh g(-1) after 100 cycles with a relatively constant Coulombic efficiency around 98.0%. (C) 2015 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据