A Polysulfides-Confined All-in-One Porous Microcapsule Lithium-Sulfur Battery Cathode
文献类型：期刊论文
| 作者 | Liu, Jinyun1; Zhu, Mengfei1; Shen, Zihan2; Han, Tianli1; Si, Ting3; Hu, Chaoquan4; Zhang, Huigang2 |
| 刊名 | SMALL
 |
| 出版日期 | 2021-09-12 |
| 页码 | 10 |
| 关键词 | adsorption energies carbon nanotubes microcapsules quantum dots secondary batteries |
| ISSN号 | 1613-6810 |
| DOI | 10.1002/smll.202103051 |
| 英文摘要 | Developing emerging materials for high energy-density lithium-sulfur (Li-S) batteries is of great significance to suppress the shuttle effect of polysulfides and to accommodate the volumetric change of sulfur. Here, a novel porous microcapsule system containing a carbon nanotubes/tin dioxide quantum dots/S (CNTs/QDs/S) composite core and a porous shell prepared through a liquid-driven coaxial microfluidic method as Li-S battery cathode is developed. The encapsulated CNTs in the microcapsules provide pathways for electron transport; SnO2 QDs on CNTs immobilize the polysulfides by strong adsorption, which is verified by using density functional theory calculations on binding energies. The porous shell of the microcapsule is beneficial for ion diffusion and electrolyte penetration. The void inside the microcapsule accommodates the volumetric change of sulfur. The Li-S battery based on the porous CNTs/QDs/S microcapsules displays a high capacity of 1025 mAh g(-1) after 100 cycles at 0.1 C. When the sulfur loading is 2.03 mg cm(-2), the battery shows a stable cycling life of 700 cycles, a Coulombic efficiency exceeding 99.9%, a recoverable rate-performance during repeated tests, and a good temperature tolerance at both -5 and 45 degrees C, which indicates a potential for applications at different conditions. |
| WOS关键词 | RATIONAL DESIGN ; CARBON ; COMPOSITE ; KINETICS ; NITROGEN ; HYBRID ; HOST |
| 资助项目 | Science and Technology Major Project of Anhui Province[18030901093] ; Key Research and Development Program of Wuhu[2019YF07] ; National Natural Science Foundation of China[21776121] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000695037900001 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 资助机构 | Science and Technology Major Project of Anhui Province ; Key Research and Development Program of Wuhu ; National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/50156]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Liu, Jinyun; Hu, Chaoquan; Zhang, Huigang |
| 作者单位 | 1.Anhui Normal Univ, Anhui Prov Engn Lab New Energy Vehicle Battery En, Coll Chem & Mat Sci, Key Lab Funct Mol Solids,Minist Educ, Wuhu 241002, Anhui, Peoples R China 2.Nanjing Univ, Coll Engn & Appl Sci, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China 3.Univ Sci & Technol China, Dept Modern Mech, Hefei 230026, Anhui, Peoples R China 4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Jinyun,Zhu, Mengfei,Shen, Zihan,et al. A Polysulfides-Confined All-in-One Porous Microcapsule Lithium-Sulfur Battery Cathode[J]. SMALL,2021:10. |
| APA | Liu, Jinyun.,Zhu, Mengfei.,Shen, Zihan.,Han, Tianli.,Si, Ting.,...&Zhang, Huigang.(2021).A Polysulfides-Confined All-in-One Porous Microcapsule Lithium-Sulfur Battery Cathode.SMALL,10. |
| MLA | Liu, Jinyun,et al."A Polysulfides-Confined All-in-One Porous Microcapsule Lithium-Sulfur Battery Cathode".SMALL (2021):10. |
入库方式： OAI收割
来源：过程工程研究所
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