Knowledge Management System Of Institute of process engineering,CAS
| Supercritical fluid-assisted preparation of Si/CNTs@FG composites with hierarchical conductive networks as a high-performance anode material | |
| Wang, Xiaoyang1,2; Wen, Kaihua1; Chen, Tianhua3; Chen, Shimou1,4; Zhang, Suojiang1 | |
| 2020-08-30 | |
| Source Publication | APPLIED SURFACE SCIENCE
 |
| ISSN | 0169-4332 |
| Volume | 522Pages:8 |
| Abstract | Considering the high theoretical specific capacity (4200 mAh/g), silicon is perceived as one of the most promising anode materials for lithium-ion battery, but the large volume change during the process of de/lithiation affects its cycle performance and practical application. With the assist of supercritical CO2 fluid (scCO(2)), graphite is exfoliated to folded graphite (FG) flakes. Meanwhile, the composite of Si/CNTs@FG with a hierarchical conductive network structure was constructed, where the silicon nanoparticles and carbon nanotubes (CNTs) were homogenously attached to the interlayer of FG. The hierarchical conductive network composed of FG and CNTs not only promotes the electrons transfer process but also relieves volume expansion stress of silicon. The Si/CNTs@FG exhibits remarkable Li storage performance, delivering high specific reversible capacity (1204 mAh/g at the current density of 0.2A/g), high capacity retention (970 mAh/g after 100 cycles) and excellent rate performance (635.2 mAh/g at 2 A/g). This study provides a facile and scalable approach to prepare a silicon-based anode material with excellent electrochemical performance. |
| Keyword | Silicon anode Supercritical CO2 fluid Lithium-ion battery Anode |
| DOI | 10.1016/j.apsusc.2020.146507 |
| Language | 英语 |
| WOS Keyword | LITHIUM-ION BATTERY ; POROUS SILICON ; ELECTROCHEMICAL PERFORMANCE ; GRAPHITE-ELECTRODES ; SI NANOPARTICLES ; LAYER GRAPHENE ; FEW-LAYER ; SURFACE ; CO2 ; NANOCOMPOSITES |
| Funding Project | National Key Projects for Fundamental Research and Development of China[2017YFB0102200] ; National Natural Science Foundation of China[51922099] ; National Natural Science Foundation of China[91534109] ; National Natural Science Foundation of China[21503006] |
| WOS Research Area | Chemistry ; Materials Science ; Physics |
| WOS Subject | Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter |
| Funding Organization | National Key Projects for Fundamental Research and Development of China ; National Natural Science Foundation of China |
| WOS ID | WOS:000535690900002 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/40804 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Chen, Shimou; Zhang, Suojiang |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Adelaide, Sch Chem Engn & Adv Mat, Adelaide, SA 5005, Australia 4.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Xiaoyang,Wen, Kaihua,Chen, Tianhua,et al. Supercritical fluid-assisted preparation of Si/CNTs@FG composites with hierarchical conductive networks as a high-performance anode material[J]. APPLIED SURFACE SCIENCE,2020,522:8. |
| APA | Wang, Xiaoyang,Wen, Kaihua,Chen, Tianhua,Chen, Shimou,&Zhang, Suojiang.(2020).Supercritical fluid-assisted preparation of Si/CNTs@FG composites with hierarchical conductive networks as a high-performance anode material.APPLIED SURFACE SCIENCE,522,8. |
| MLA | Wang, Xiaoyang,et al."Supercritical fluid-assisted preparation of Si/CNTs@FG composites with hierarchical conductive networks as a high-performance anode material".APPLIED SURFACE SCIENCE 522(2020):8. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment