Atomic Structure and Kinetics of NASICON NaxV2(PO4)(3) Cathode for Sodium-Ion Batteries
文献类型：期刊论文
| 作者 | Jian, ZL ; Yuan, CC ; Han, WZ ; Lu, X ; Gu, L ; Xi, XK ; Hu, YS ; Li, H ; Chen, W ; Chen, DF ; Ikuhara, Y ; Chen, LQ |
| 刊名 | ADVANCED FUNCTIONAL MATERIALS
 |
| 出版日期 | 2014 |
| 卷号 | 24期号:27页码:4265 |
| ISSN号 | 1616-301X |
| 通讯作者 | Jian, ZL (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | Na3V2(PO4)(3) is one of the most important cathode materials for sodiumion batteries, delivering about two Na extraction/insertion from/into the unit structure. To understand the mechanism of sodium storage, a detailed structure of rhombohedral Na3V2(PO4)(3) and its sodium extracted phase of NaV2(PO4)(3) are investigated at the atomic scale using a variety of advanced techniques. It is found that two different Na sites (6b, M1 and 18e, M2) with different coordination environments co-exist in Na3V2(PO4)(3), whereas only one Na site (6b, M1) exists in NaV2(PO4)(3). When Na is extracted from Na3V2(PO4)(3) to form NaV2(PO4)(3), Na+ occupying the M2 site (CN = 8) is extracted and the rest of the Na remains at M1 site (CN = 6). In addition, the Na atoms are not randomly distributed, possibly with an ordered arrangement in M2 sites locally for Na3V2(PO4)(3). Na+ ions at the M1 sites in Na3V2(PO4)(3) tend to remain immobilized, suggesting a direct M2- to -M2 conduction pathway. Only Na occupying the M2 sites can be extracted, suggesting about two Na atoms able to be extracted from the Na3V2(PO4)(3) structure. |
| 资助信息 | 973 Projects [2010CB833102, 2012CB932900]; NSFC [51222210, 51071171, 11234013, 11174334, 11205249]; 100 Talent Project of the Chinese Academy of Sciences |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/58825]  |
| 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 | Jian, ZL,Yuan, CC,Han, WZ,et al. Atomic Structure and Kinetics of NASICON NaxV2(PO4)(3) Cathode for Sodium-Ion Batteries[J]. ADVANCED FUNCTIONAL MATERIALS,2014,24(27):4265. |
| APA | Jian, ZL.,Yuan, CC.,Han, WZ.,Lu, X.,Gu, L.,...&Chen, LQ.(2014).Atomic Structure and Kinetics of NASICON NaxV2(PO4)(3) Cathode for Sodium-Ion Batteries.ADVANCED FUNCTIONAL MATERIALS,24(27),4265. |
| MLA | Jian, ZL,et al."Atomic Structure and Kinetics of NASICON NaxV2(PO4)(3) Cathode for Sodium-Ion Batteries".ADVANCED FUNCTIONAL MATERIALS 24.27(2014):4265. |
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来源：物理研究所
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