Growth of silicon/carbon microrods on graphite microspheres as improved anodes for lithium-ion batteries
文献类型：期刊论文
| 作者 | Zhu, Xiaoyi1,2; Chen, Han2; Wang, Yanhong2; Xia, Linhua1; Tan, Qiangqiang2; Li, Hong3; Zhong, Ziyi4; Su, Fabing2; Zhao, X. S.1,5 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2013 |
| 卷号 | 1期号:14页码:4483-4489 |
| 英文摘要 | 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. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Chemistry ; Energy & Fuels ; Materials Science |
| 关键词[WOS] | CHEMICAL-VAPOR-DEPOSITION ; DISORDERED CARBONS ; CATHODE MATERIALS ; COMPOSITE ANODE ; FLUIDIZED-BED ; NANO-SILICON ; SI ; INSERTION ; NANOPARTICLES ; NANOTUBES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000315968900012 |
| 公开日期 | 2015-05-27 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/13725]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：过程工程研究所
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