Multifunctional modification of li[ni0.5co0.2mn0.3]o-2 with nh4vo3 as a high performance cathode material for lithium ion batteries
文献类型：期刊论文
| 作者 | Ge, Wu-Jie1,2; Li, Xiang1,2; Wang, Hao1,2; Li, Wen3; Wei, Ai-Jia3; Peng, Gong-Chang2; Qu, Mei-Zhen2 |
| 刊名 | Journal of alloys and compounds
 |
| 出版日期 | 2016-11-05 |
| 卷号 | 684页码:594-603 |
| 关键词 | Lithium ion batteries Li[ni0.5co0.2mn0.3]o-2 cathode material Residual lithium impurities Li3vo4 coating layer Lithium ion diffusion coefficient |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2016.05.249 |
| 通讯作者 | Qu, mei-zhen(mzhqu@cioc.ac.cn) |
| 英文摘要 | Li[ni0.5co0.2mn0.3]o-2 material was treated with nh4vo3 at 400 degrees c for 3 h li3vo4 coating layer was formed during the calcination by using lithium residues on the material surface as raw materials. xrd results showed the nh4vo3 modified material had less li+/ni2+ cation mixing degree and confirmed some vanadium doped into the crystal lattice. electrochemical studies indicated the modified material exhibited excellent lithium ion diffusion coefficient, superior cycle performance and improved rate capability compared with those of the bare material. the nh4vo3 modified sample maintains 156.7 ma h g(-1) with 87.8% capacity retention after 100 high-voltage cycles (with 4.6 v charge cut-off) at 1 c. while, for the bare sample, the value is only 131.3 ma h g(-1) with 75.5% capacity retention. the enhanced electrochemical performance can be ascribed to the removal of lithium residues, the doping of vanadium ion and the lithium ion conductive li3vo4 coating layer. on the basis of these results, li3vo4 coated li[ni0.5co0.2mn0.3]o-2, prepared by the direct reaction with nh4vo3, can be used as a promising cathode material for li-ion batteries. (c) 2016 elsevier b.v. all rights reserved. |
| WOS关键词 | ENHANCED ELECTROCHEMICAL PERFORMANCE ; HIGH-RATE CAPABILITY ; LINI0.5CO0.2MN0.3O2 CATHODE ; RECHARGEABLE CELLS ; THERMAL-STABILITY ; CYCLING STABILITY ; ANODE MATERIAL ; NI-RICH ; VOLTAGE ; IMPROVEMENT |
| 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:000379792800083 |
| 出版者 | ELSEVIER SCIENCE SA |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2374572 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Qu, Mei-Zhen |
| 作者单位 | 1.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China 2.Chinese Acad Sci, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R China 3.Hebei Acad Sci, Inst Energy Resources, Shijiazhuang 050081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ge, Wu-Jie,Li, Xiang,Wang, Hao,et al. Multifunctional modification of li[ni0.5co0.2mn0.3]o-2 with nh4vo3 as a high performance cathode material for lithium ion batteries[J]. Journal of alloys and compounds,2016,684:594-603. |
| APA | Ge, Wu-Jie.,Li, Xiang.,Wang, Hao.,Li, Wen.,Wei, Ai-Jia.,...&Qu, Mei-Zhen.(2016).Multifunctional modification of li[ni0.5co0.2mn0.3]o-2 with nh4vo3 as a high performance cathode material for lithium ion batteries.Journal of alloys and compounds,684,594-603. |
| MLA | Ge, Wu-Jie,et al."Multifunctional modification of li[ni0.5co0.2mn0.3]o-2 with nh4vo3 as a high performance cathode material for lithium ion batteries".Journal of alloys and compounds 684(2016):594-603. |
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来源：中国科学院大学
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