Rational construction of a CNTs@VO2 nanosheets modified separator for enhancing the performance of lithium-sulfur batteries
文献类型：期刊论文
| 作者 | Gao, Yi-Bo1,2; Liu, Guo-Qiang1; Zheng, Shu-Min2; Su, Chang1; Yue, Wen-Ce2; Dong, Shao-Wen2; Li, Bao3; Wang, Bao2 |
| 刊名 | Dalton Transactions
 |
| 出版日期 | 2022-03-18 |
| 卷号 | 51期号:15页码:6103-6111 |
| ISSN号 | 14779226 |
| 关键词 | Vanadium dioxide - Lithium compounds - Electrolytes - Metals - Nanosheets - Lithium-ion batteries - Lithium sulfur batteries |
| DOI | 10.1039/d2dt00421f |
| 英文摘要 | Although lithium-sulfur (Li-S) batteries possess great potential to become the next generation of energy storage technology due to their fivefold higher energy density than commercial lithium-ion batteries, their practical application is still hindered by their poor cycling stability, especially resulting from the disturbing shuttle effect of soluble intermediates. In this study, vanadium dioxide (VO2) nanosheets were successfully grown onto CNTs to form CNTs@VO2 through hydrothermal and calcining processes. The hollow structure of the high conductive CNTs offers internal space and mesopores to accommodate the electrolyte combined with the polar metal oxide VO2 nanosheets providing the chemical anchoring. The hollow binary core-shell host acting as the nanoreactor that serves as the modifier of the separator results in the intensive physical and chemical dual adsorption of lithium polysulfide species (LiPSs), promoting the conversion of long-chain LiPSs to alleviate the shuttle effect significantly and boosting the performance. In addition, the CNTs enhance the electronic conductivity and the electrolyte infiltration of the separator. Notably, the modified separator demonstrates a high initial discharge capacity of 1397 mA h g鈭? at 0.2C and retains a stable cycling ability with a reversible capacity of 965 mA h g鈭? over 200 cycles at 1C. Even for the high sulfur loading of 7.4 mg cm鈭?, it can deliver a high areal capacity of 5.4 mA h cm鈭? at 0.5C. 漏 2022 The Royal Society of Chemistry |
| 学科主题 | Separators |
| 出版者 | Royal Society of Chemistry |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/61291]  |
| 作者单位 | 1.Key Laboratory for Ecological Metallurgy of Multimetallic Mineral (Ministry of Education), Northeastern University, School of Metallurgy, Shenyang; 110819, China 2.State Key Laboratory of Biochemical Engineering Institute of Process Engineering, Chinese Academy of Sciences, No. 1 Beierjie, Zhongguancun, Beijing; 100190, China 3.Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Normal University, School of Chemistry and Chemical Engineering, Ministry of Education, Key Laboratory of Green Chemical Media and Reactions, Xinxiang; 453007, China |
| 推荐引用方式 GB/T 7714 | Gao, Yi-Bo,Liu, Guo-Qiang,Zheng, Shu-Min,et al. Rational construction of a CNTs@VO2 nanosheets modified separator for enhancing the performance of lithium-sulfur batteries[J]. Dalton Transactions,2022,51(15):6103-6111. |
| APA | Gao, Yi-Bo.,Liu, Guo-Qiang.,Zheng, Shu-Min.,Su, Chang.,Yue, Wen-Ce.,...&Wang, Bao.(2022).Rational construction of a CNTs@VO2 nanosheets modified separator for enhancing the performance of lithium-sulfur batteries.Dalton Transactions,51(15),6103-6111. |
| MLA | Gao, Yi-Bo,et al."Rational construction of a CNTs@VO2 nanosheets modified separator for enhancing the performance of lithium-sulfur batteries".Dalton Transactions 51.15(2022):6103-6111. |
入库方式： OAI收割
来源：过程工程研究所
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。