Feasibility of Using Li2MoO3 in Constructing Li-Rich High Energy Density Cathode Materials
文献类型：期刊论文
| 作者 | Ma, J ; Zhou, YN ; Gao, YR ; Yu, XQ ; Kong, QY ; Gu, L ; Wang, ZX ; Yang, XQ ; Chen, LQ |
| 刊名 | CHEMISTRY OF MATERIALS
 |
| 出版日期 | 2014 |
| 卷号 | 26期号:10页码:3256 |
| ISSN号 | 0897-4756 |
| 通讯作者 | Kong, QY (reprint author), Argonne Natl Lab, Xray Sci Div, 9700 S Cass Ave, Argonne, IL 60439 USA. |
| 中文摘要 | Layer-structured xLi(2)MnO(3)center dot(1 - x)LiMO2 are promising cathode materials for high energy-density Li-ion batteries because they deliver high capacities due to the stabilizing effect of Li2MnO3. However, the inherent disadvantages of Li2MnO3 make these materials suffer from drawbacks such as fast energy-density decay, poor rate performance and safety hazard. In this paper, we propose to replace Li2MnO3 with Li2MoO3 for constructing novel Li-rich cathode materials and evaluate its feasibility. Comprehensive studies by X-ray diffraction, X-ray absorption spectroscopy, and spherical-aberration-corrected scanning transmission electron microscopy clarify its lithium extraction/insertion mechanism and shows that the Mo4+/Mo6+ redox couple in Li2MoO3 can accomplish the task of charge compensation upon Li removal. Other properties of Li2MoO3 such as the nearly reversible Mo-ion migration to/from the Li vacancies, absence of oxygen evolution, and reversible phase transition during initial (de)lithiation indicate that Li2MoO3 meets the requirements to an ideal replacement of Li2MnO3 in constructing Li2MoO3-based Li-rich cathode materials with superior performances. |
| 资助信息 | National Natural Science Foundation of China (NSFC) [51372268]; National 973 Program of China [2009CB220100]; U.S. Department of Energy; Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies [DEAC02-98CH10886] |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/58957]  |
| 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 | Ma, J,Zhou, YN,Gao, YR,et al. Feasibility of Using Li2MoO3 in Constructing Li-Rich High Energy Density Cathode Materials[J]. CHEMISTRY OF MATERIALS,2014,26(10):3256. |
| APA | Ma, J.,Zhou, YN.,Gao, YR.,Yu, XQ.,Kong, QY.,...&Chen, LQ.(2014).Feasibility of Using Li2MoO3 in Constructing Li-Rich High Energy Density Cathode Materials.CHEMISTRY OF MATERIALS,26(10),3256. |
| MLA | Ma, J,et al."Feasibility of Using Li2MoO3 in Constructing Li-Rich High Energy Density Cathode Materials".CHEMISTRY OF MATERIALS 26.10(2014):3256. |
入库方式： OAI收割
来源：物理研究所
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