Single-wall carbon nanotube network enabled ultrahigh sulfur-content electrodes for high-performance lithium-sulfur batteries
文献类型：期刊论文
| 作者 | Fang, Ruopian; Li, Guoxian; Zhao, Shiyong; Yin, Lichang; Du, Kui; Hou, Pengxiang; Wang, Shaogang; Cheng, Hui-Ming; Liu, Chang; Li, Feng |
| 刊名 | ELSEVIER SCIENCE BV
 |
| 出版日期 | 2017-12-01 |
| 卷号 | 42页码:205-214 |
| ISSN号 | 2211-2855 |
| 关键词 | Single-wall Carbon Nanotube Lithium Sulfur Batteries High Energy |
| 英文摘要 | Lithium-sulfur (Li-S) batteries are among the most promising candidates for the next-generation energy storage systems. However, challenges regarding the limited sulfur content and areal sulfur loading in the cathode lead to a low areal capacity that cannot even outperform state-of-the-art lithium-ion batteries, which greatly offsets the high-energy advantage of Li-S batteries and further hinders their practical use. Here, we theoretically indicated that the electronic conduction efficiency of the sulfur host nanomaterial plays a crucial role in determining the sulfur content, and a highly efficient single-wall carbon nanotube (SWCNT) conductive network was constructed for our proof-of-concept studies, resulting in an unprecedentedly high sulfur content up to 95 wt%. The interwoven SWCNTs not only provide abundant paths for electron and lithium ion transport, but also facilitate polysulfides trapping during sulfur conversion reactions. As a result, a high areal capacity of 8.63 mA h cm(-2) was obtained with a high areal sulfur loading of 7.2 mg cm(-2), much higher than that of lithium-ion batteries (4 mA h cm(-2)). Our approach demonstrates a new design concept for the electrode materials of high-energy-density lithium-sulfur batteries and could possibly be extended to other electrochemical energy storage systems.; Lithium-sulfur (Li-S) batteries are among the most promising candidates for the next-generation energy storage systems. However, challenges regarding the limited sulfur content and areal sulfur loading in the cathode lead to a low areal capacity that cannot even outperform state-of-the-art lithium-ion batteries, which greatly offsets the high-energy advantage of Li-S batteries and further hinders their practical use. Here, we theoretically indicated that the electronic conduction efficiency of the sulfur host nanomaterial plays a crucial role in determining the sulfur content, and a highly efficient single-wall carbon nanotube (SWCNT) conductive network was constructed for our proof-of-concept studies, resulting in an unprecedentedly high sulfur content up to 95 wt%. The interwoven SWCNTs not only provide abundant paths for electron and lithium ion transport, but also facilitate polysulfides trapping during sulfur conversion reactions. As a result, a high areal capacity of 8.63 mA h cm(-2) was obtained with a high areal sulfur loading of 7.2 mg cm(-2), much higher than that of lithium-ion batteries (4 mA h cm(-2)). Our approach demonstrates a new design concept for the electrode materials of high-energy-density lithium-sulfur batteries and could possibly be extended to other electrochemical energy storage systems. |
| 学科主题 | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| 语种 | 英语 |
| 资助机构 | MOST [2016YFA0200100, 2016YFB0100100, 2014CB932402]; National Science Foundation of China [51525206, 51521091, 51372253, U1401243]; Chinese Academy of Sciences [XDA09010104, KGZD-EWT06] |
| 公开日期 | 2018-01-10 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/78945]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, C; Li, F (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Fang, Ruopian,Li, Guoxian,Zhao, Shiyong,et al. Single-wall carbon nanotube network enabled ultrahigh sulfur-content electrodes for high-performance lithium-sulfur batteries[J]. ELSEVIER SCIENCE BV,2017,42:205-214. |
| APA | Fang, Ruopian.,Li, Guoxian.,Zhao, Shiyong.,Yin, Lichang.,Du, Kui.,...&Li, F .(2017).Single-wall carbon nanotube network enabled ultrahigh sulfur-content electrodes for high-performance lithium-sulfur batteries.ELSEVIER SCIENCE BV,42,205-214. |
| MLA | Fang, Ruopian,et al."Single-wall carbon nanotube network enabled ultrahigh sulfur-content electrodes for high-performance lithium-sulfur batteries".ELSEVIER SCIENCE BV 42(2017):205-214. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。