期刊
CURRENT APPLIED PHYSICS
卷 19, 期 8, 页码 902-909出版社
ELSEVIER
DOI: 10.1016/j.cap.2019.05.001
关键词
Lithium-sulfur; MWCNT; CNF; Energy storage; prGO sheet
资金
- Department of Science and Technology (DST) New Delhi, Govt. of India
- Ministry of Human Resource Development RUSA- Phase 2.0 grant, Dept. of Education, Govt. of India [F-24-51/2014 U]
Carbon matrices have attracted the attention enthusiastically as the improver materials of sulfur for rechargeable lithium-sulfur battery. In this work, various morphologies (sphere, fiber, tube and layer) based carbon materials have been used for preparing the sulfur-carbon binary composites via melt diffusion method for lithium-sulfur battery application. The prepared binary composites have been characterized for its structural and morphological information using X-ray diffraction, Fourier transform infrared spectroscopy, Raman spectroscopy, and, Scanning and Transmission electron microscopy. The electrochemical studies are characterized by cyclic voltammetry, charge-discharge and cycle life after being assembled as lithium-sulfur cell. The S-prGO composite exhibits the initial discharge capacity of 893 mAh g(-1) and it sustains over 50 cycles (598 mAh g(-1)) at 0.1C, with low capacity fading rate when compared to the other composites studied. A remarkable electrochemical performance indicates that the sheet like morphology can accommodate the volume expansion of sulfur and the oxygen groups containing GO minimize the dissolution of lithium polysulfides.
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