SiO2@C hollow sphere anodes for lithium-ion batteries
文献类型：期刊论文
| 作者 | Liu, Xuelian ; Chen, Yuxi ; Liu, Hongbo ; Liu, Zhi-Quan |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2017-03-01 |
| 卷号 | 33期号:3页码:239-245 |
| 关键词 | Silica Hollow spheres Carbon coating Anode Lithium-ion batteries |
| ISSN号 | 1005-0302 |
| 通讯作者 | Chen, YX (reprint author), Hunan Univ, Hunan Prov Key Lab Spray Deposit Technol & Applic, Coll Mat Sci & Engn, Changsha 410082, Hunan, Peoples R China. |
| 中文摘要 | As anode materials for lithium-ion batteries, SiO2 is of great interest because of its high capacity, low cost and environmental affinity. A facile approach has been developed to fabricate SiO2@C hollow spheres by hydrolysis of tetraethyl orthosilicate (TEOS) to form SiO2 shells on organic sphere templates followed by calcinations in air to remove the templates, and then the SiO2 shells are covered by carbon layers. Electron microscopy investigations confirm hollow structure of the SiO2@C. The SiO2@C hollow spheres with different SiO2 contents display gradual increase in specific capacity with discharge/charge cycling, among which the SiO2@C with SiO2 content of 67 wt% exhibits discharge/charge capacities of 653.4/ 649.6 mA h g(-1) over 160 cycles at current density of 0.11 mA cm(-2). The impedance fitting of the electrochemical impedance spectroscopy shows that the SiO2@C with SiO2 content of 67 wt% has the lowest charge transfer resistance, which indicates that the SiO2@C hollow spheres is promising anode candidate for lithium-ion batteries. Copyright (C) 2017, The editorial office of Journal of Materials Science & Technology. Published by Elsevier Limited. |
| 学科主题 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [51472083] |
| 语种 | 英语 |
| 公开日期 | 2017-08-17 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/78259]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Liu, Xuelian,Chen, Yuxi,Liu, Hongbo,et al. SiO2@C hollow sphere anodes for lithium-ion batteries[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2017,33(3):239-245. |
| APA | Liu, Xuelian,Chen, Yuxi,Liu, Hongbo,&Liu, Zhi-Quan.(2017).SiO2@C hollow sphere anodes for lithium-ion batteries.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,33(3),239-245. |
| MLA | Liu, Xuelian,et al."SiO2@C hollow sphere anodes for lithium-ion batteries".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 33.3(2017):239-245. |
入库方式： OAI收割
来源：金属研究所
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