From interlayer to lightweight capping layer: Rational design of mesoporous TiO2 threaded with CNTs for advanced Li-S batteries
文献类型：期刊论文
| 作者 | Li, Na1; Chen, Zhongxu1; Chen, Fei3; Hu, Guangjian2; Wang, Shaogang2; Sun, Zhenhua2; Sun, Xudong1; Li, Feng2 |
| 刊名 | CARBON
 |
| 出版日期 | 2019-03-01 |
| 卷号 | 143页码:523-530 |
| ISSN号 | 0008-6223 |
| DOI | 10.1016/j.carbon.2018.11.064 |
| 通讯作者 | Sun, Xudong(xdsun@mail.neu.edu.cn) ; Li, Feng(fli@imr.ac.cn) |
| 英文摘要 | Lithium-sulfur (Li-S) battery with high theoretical energy density has been considered a promising candidate of the next-generation energy storage systems. Its commercialization, however, is mainly hindered by the fast capacity decay induced by the polysulfide shuttle behavior between two electrodes. Herein, we report a scalable production of mesoporous TiO2-carbon nanotubes (MTO-CNTs) in which each mesoporous oval-shaped TiO2 particle is threaded with a CNT in the axis direction. As its one dimensional structure with a self-weaving feature, two different approaches enlisting the use of MTOCNTs as an interlayer between cathode and separator or a capping layer coated directly onto the sulfur cathode, both aiming to suppress the polysulfide shuttle. The threaded structure provides excellent interfacial contact between TiO2 and CNTs allowing CNTs to provide fast and continuous electron pathway toward the TiO2-polysulfide polar adsorption interface, thus dynamically accelerating the redox conversion of the trapped polysulfides. As a result of the synergetic effect, the cell with an ultra-lightweight MTO-CNTs capping layer (merely 0.06mg cm(-2)) exhibits a long-term cyclability with a low capacity decay of 0.07% per cycle within 500 cycles at 0.5 C. (C) 2018 Elsevier Ltd. All rights reserved. |
| 资助项目 | National Natural Science Foundation of China[51602044] ; National Natural Science Foundation of China[51525206] ; Ministry of Science and Techenology of the People's of China[2016YFA0200100] ; Ministry of Science and Techenology of the People's of China[2016YFB0100100] ; Research Funds for the Central Universities[N170205021] |
| WOS研究方向 | Chemistry ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000456710500059 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; Ministry of Science and Techenology of the People's of China ; Research Funds for the Central Universities |
| 源URL | [http://ir.imr.ac.cn/handle/321006/131268]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Sun, Xudong; Li, Feng |
| 作者单位 | 1.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Liaoning, Peoples R China 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 3.Dalian Univ, Sch Environm & Chem Engn, Dalian 116622, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Na,Chen, Zhongxu,Chen, Fei,et al. From interlayer to lightweight capping layer: Rational design of mesoporous TiO2 threaded with CNTs for advanced Li-S batteries[J]. CARBON,2019,143:523-530. |
| APA | Li, Na.,Chen, Zhongxu.,Chen, Fei.,Hu, Guangjian.,Wang, Shaogang.,...&Li, Feng.(2019).From interlayer to lightweight capping layer: Rational design of mesoporous TiO2 threaded with CNTs for advanced Li-S batteries.CARBON,143,523-530. |
| MLA | Li, Na,et al."From interlayer to lightweight capping layer: Rational design of mesoporous TiO2 threaded with CNTs for advanced Li-S batteries".CARBON 143(2019):523-530. |
入库方式： OAI收割
来源：金属研究所
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