Structural and electrochemical performances of li4ti5-xzrxo12 as anode material for lithium-ion batteries
文献类型：期刊论文
| 作者 | Li, Xing1,2; Qu, Meizhen1; Yu, Zuolong1 |
| 刊名 | Journal of alloys and compounds
 |
| 出版日期 | 2009-11-13 |
| 卷号 | 487期号:1-2页码:L12-l17 |
| 关键词 | Lithium-ion battery Spinel lithium titanate Nano-particle Doping Rate capability |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2009.07.176 |
| 通讯作者 | Yu, zuolong(yzuolong@163.com) |
| 英文摘要 | Zr-doped li4ti5o12 in the form of li4ti5-xzrxo12 (x=0, 0.05, 0.1 and 0.2) was prepared by solid-state reaction in an air atmosphere. the dopant zr partly entered the lattice structure of li4ti5o12, and the excessive part existed as the impurity of zro2. zr-doping did not change the electrochemical reaction process of li4ti5o12, but greatly affected its morphology and particle size. the particle size of the zr-doped li4ti5o12 sample was less than 100 nm and had less agglomeration. zr-doping obviously improved the rate capability of li4ti5o12 via the generation of small particle size and less agglomeration, however, a high amount of zr-doping was adverse to the electrochemical performance probably due to much zro2 impurity contained in the li4ti5o12. li4ti4.9zr0.1o12 exhibited a relatively good rate capability and cycling stability. at the charge-discharge rate of 5c, 10c and 20c, its discharge capacities were 143 mah/g, 132 mah/g and 118 mah/g, respectively. after 100 cycles at 5c, it remained at 141 mah/g. (c) 2009 elsevier b.v. all rights reserved. |
| WOS关键词 | ELECTRICAL-CONDUCTIVITY ; LI4TI5O12 ; ELECTRODE ; SPINEL ; COMPOSITE ; BEHAVIOR |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS类目 | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000272521900004 |
| 出版者 | ELSEVIER SCIENCE SA |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2396061 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Yu, Zuolong |
| 作者单位 | 1.Chinese Acad Sci, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xing,Qu, Meizhen,Yu, Zuolong. Structural and electrochemical performances of li4ti5-xzrxo12 as anode material for lithium-ion batteries[J]. Journal of alloys and compounds,2009,487(1-2):L12-l17. |
| APA | Li, Xing,Qu, Meizhen,&Yu, Zuolong.(2009).Structural and electrochemical performances of li4ti5-xzrxo12 as anode material for lithium-ion batteries.Journal of alloys and compounds,487(1-2),L12-l17. |
| MLA | Li, Xing,et al."Structural and electrochemical performances of li4ti5-xzrxo12 as anode material for lithium-ion batteries".Journal of alloys and compounds 487.1-2(2009):L12-l17. |
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来源：中国科学院大学
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