In situ X-ray absorption and diffraction studies of carbon coated LiFe1/4Mn1/4Co1/4Ni1/4PO4 cathode during first charge
文献类型：期刊论文
| 作者 | Nam, KW ; Wang, XJ ; Yoon, WS ; Li, H ; Huang, XJ ; Haas, O ; Bai, JM ; Yang, XQ |
| 刊名 | ELECTROCHEMISTRY COMMUNICATIONS
 |
| 出版日期 | 2009 |
| 卷号 | 11期号:4页码:913 |
| 关键词 | LITHIUM BATTERIES LIFEPO4 EXTRACTION LIMNPO4 LICOPO4 |
| ISSN号 | 1388-2481 |
| 通讯作者 | Yang, XQ: Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. |
| 中文摘要 | Synchrotron based in situ X-ray absorption spectroscopy (XAS) and X-ray diffraction (XRD) techniques are used to study electronic and crystal structure changes of the carbon coated LiFe1/4Mn1/4Co1/4Ni1/4PO4 (LiFe1/4Mn1/4Co1/4Ni1/4PO4/C) cathode material for Li-ion batteries during the first charge. In situ Fe, Mn, Co and Ni K-edge XAS results revealed that the three voltage plateaus at similar to 3.6, 4.2 and 4.7 V vs. Li/Li+ are attributed to the redox reactions of Fe2+/Fe3+, Mn2+/Mn3+ and Co2+/Co3+, respectively, while the apparent capacities above 4.9 V is not originated from the Ni2+/Ni3+ redox, but very likely from the electrolyte decomposition. Interesting phase transition behaviors of LiFe1/4Mn1/4Co1/4Ni1/4PO4/C were observed with the formation of an intermediate phase and the solid solution regions. Combined in situ XAS and XRD techniques indicate fast electronic structural changes and slow bulk crystal structural changes. (C) 2009 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 资助信息 | US Department of Energy [DEAC02-98CH10886]; Nature Scientific Foundation of China [50730005, 60621061]; 863 Project [2006AA03Z228]; 973 Project [2007CB936501] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/39725]  |
| 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 | Nam, KW,Wang, XJ,Yoon, WS,et al. In situ X-ray absorption and diffraction studies of carbon coated LiFe1/4Mn1/4Co1/4Ni1/4PO4 cathode during first charge[J]. ELECTROCHEMISTRY COMMUNICATIONS,2009,11(4):913. |
| APA | Nam, KW.,Wang, XJ.,Yoon, WS.,Li, H.,Huang, XJ.,...&Yang, XQ.(2009).In situ X-ray absorption and diffraction studies of carbon coated LiFe1/4Mn1/4Co1/4Ni1/4PO4 cathode during first charge.ELECTROCHEMISTRY COMMUNICATIONS,11(4),913. |
| MLA | Nam, KW,et al."In situ X-ray absorption and diffraction studies of carbon coated LiFe1/4Mn1/4Co1/4Ni1/4PO4 cathode during first charge".ELECTROCHEMISTRY COMMUNICATIONS 11.4(2009):913. |
入库方式： OAI收割
来源：物理研究所
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