Knowledge Management System Of Institute of process engineering,CAS
| Growth of silicon/carbon microrods on graphite microspheres as improved anodes for lithium-ion batteries | |
| Zhu, Xiaoyi1,2; Chen, Han2; Wang, Yanhong2; Xia, Linhua1; Tan, Qiangqiang2; Li, Hong3; Zhong, Ziyi4; Su, Fabing2; Zhao, X. S.1,5 | |
| 2013 | |
| Source Publication | JOURNAL OF MATERIALS CHEMISTRY A
 |
| Volume | 1Issue:14Pages:4483-4489 |
| Abstract | We report a facile chemical vapor deposition (CVD) method to grow silicon/carbon (Si/C) microrods on the surface of commercial graphite microspheres (GMs) to prepare Si/C/GM composite materials as Li-ion battery anodes. Dimethyldichlorosilane and toluene were used as Si and C precursors, respectively. The CVD temperature and time, as well as the mechanism of materials growth were investigated. The samples were characterized by using X-ray diffraction, thermogravimetric analysis, X-ray photoelectron spectroscopy, Raman spectroscopy, scanning electron microscopy, and transmission electron microscopy. It was found that the obtained Si/C/GM composites with an urchin-like morphology are composed of Si particles, amorphous carbon, and graphite. The CVD conditions have a significant impact on the morphology and electrochemical performance of the composite materials. The composite prepared under the optimum CVD conditions, namely at 900 degrees C for 5 h, displayed the best anode properties with a specific capacity of 562.0 mA h g(-1) at a current density of 50 mA g(-1), much higher than that of GMs (361.0 mA h g(-1)), and a good cycling performance (i. e., a reversible capacity of 590.5 mA h g(-1) after 50 cycles). The improved electrochemical performance is attributed to the incorporation of Si, together with the formation of a Si/C microrod network, which connects the GMs and buffers the volume change of Si during lithium ion insertion/extraction. The work provides a simple and low-cost route to enhance the performance of commercial graphite anode materials for Li-ion batteries. |
| Subtype | Article |
| WOS Headings | Science & Technology ; Physical Sciences ; Technology |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | CHEMICAL-VAPOR-DEPOSITION ; DISORDERED CARBONS ; CATHODE MATERIALS ; COMPOSITE ANODE ; FLUIDIZED-BED ; NANO-SILICON ; SI ; INSERTION ; NANOPARTICLES ; NANOTUBES |
| WOS Research Area | Chemistry ; Energy & Fuels ; Materials Science |
| WOS Subject | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000315968900012 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/13725 |
| Collection | 研究所（批量导入） |
| Affiliation | 1.Qingdao Univ, Coll Chem & Environm Engn, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China 4.ASTAR, Inst Chem Engn & Sci, Singapore 627833, Singapore 5.Univ Queensland, Sch Chem Engn, St Lucia, Qld 4072, Australia |
| Recommended Citation GB/T 7714 | Zhu, Xiaoyi,Chen, Han,Wang, Yanhong,et al. Growth of silicon/carbon microrods on graphite microspheres as improved anodes for lithium-ion batteries[J]. JOURNAL OF MATERIALS CHEMISTRY A,2013,1(14):4483-4489. |
| APA | Zhu, Xiaoyi.,Chen, Han.,Wang, Yanhong.,Xia, Linhua.,Tan, Qiangqiang.,...&Zhao, X. S..(2013).Growth of silicon/carbon microrods on graphite microspheres as improved anodes for lithium-ion batteries.JOURNAL OF MATERIALS CHEMISTRY A,1(14),4483-4489. |
| MLA | Zhu, Xiaoyi,et al."Growth of silicon/carbon microrods on graphite microspheres as improved anodes for lithium-ion batteries".JOURNAL OF MATERIALS CHEMISTRY A 1.14(2013):4483-4489. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Growth of silicon_ca（502KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment