Lithium storage in carbon-coated SnO2 by conversion reaction
文献类型：期刊论文
| 作者 | Guo, XW ; Fang, XP ; Sun, Y ; Shen, LY ; Wang, ZX ; Chen, LQ |
| 刊名 | JOURNAL OF POWER SOURCES
 |
| 出版日期 | 2013 |
| 卷号 | 226页码:75 |
| 关键词 | Hollow microspheres Carbon coated tin oxide Lithium ion battery Raman characterization Electrochemical conversion reaction |
| ISSN号 | 0378-7753 |
| 通讯作者 | Wang, ZX (reprint author), Chinese Acad Sci, Key Lab Renewable Energy, Key Lab New Energy Mat & Devices, Beijing Natl Lab Condense Matter Phys,Inst Phys, POB 603, Beijing 100190, Peoples R China. |
| 中文摘要 | SnO2 attracts considerable interest as a promising high-capacity anode material for lithium ion batteries. It is believed that SnO2 stores lithium by the alloying and de-alloying reactions after the initial irreversible reduction from SnO2 to Li2O and metallic Sn. Here we report that a reversible conversion reaction, similar to that often observed in transition metal oxides, can occur in the cycling of the carbon-coated SnO2 hollow microspheres (SnO2/C), as is evidenced by Raman spectroscopy, high-resolution transmission electron microscopy (HRTEM) and theoretical calculations. However, only alloying and de-alloying reactions can reversibly take place in carbon-free SnO2 hollow microspheres. The reversible capacity of the SnO2/C is even higher than the theoretical capacity of the free SnO2. These findings provide guidance to designing anode materials with higher reversible capacities. (C) 2012 Elsevier B.V. All rights reserved. |
| 资助信息 | National 973 Program of China [2009CB220100]; WCU (World Class University) program through the Korea Science and Engineering Foundation; Ministry of Education, Science and Technology of Korea [R32-2009-000-20074-0] |
| 语种 | 英语 |
| 公开日期 | 2014-01-16 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57163]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Guo, XW,Fang, XP,Sun, Y,et al. Lithium storage in carbon-coated SnO2 by conversion reaction[J]. JOURNAL OF POWER SOURCES,2013,226:75. |
| APA | Guo, XW,Fang, XP,Sun, Y,Shen, LY,Wang, ZX,&Chen, LQ.(2013).Lithium storage in carbon-coated SnO2 by conversion reaction.JOURNAL OF POWER SOURCES,226,75. |
| MLA | Guo, XW,et al."Lithium storage in carbon-coated SnO2 by conversion reaction".JOURNAL OF POWER SOURCES 226(2013):75. |
入库方式： OAI收割
来源：物理研究所
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