Insights into the Phase Formation Mechanism of [0.5Li2MnO3 • 0.5LiNi0.5Mn0.5O2] Battery Materials

被引：24
|
作者：
Wang, Dapeng [1 ]
Belharouak, Ilias [1 ]
Zhang, Xiaofeng [1 ]
Ren, Yang [2 ]
Meng, Gu [3 ]
Wang, Chongmin [3 ]
机构：
[1] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA
[2] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA
[3] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA
来源：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2014年 / 161卷 / 01期
关键词：
NICKEL MANGANESE OXIDES; X-RAY-ABSORPTION; LOCAL-STRUCTURE; CATHODE MATERIALS; LITHIUM; PERFORMANCE; O3;
D O I：
10.1149/2.011401jes
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The cathode material Li1.5Ni0.25Mn0.75O2 5 was synthesized through a solid-state reaction. In-situ high energy X-ray diffraction, STEM and electrochemical characterizations confirmed the composite nature of the material. We mainly found that the layered components belonging to the R (3) over barm and C2/m like-phases formed stepwise following the thermal decomposition and reaction of Li2CO3. Solid diffusion at high-temperature with extended calcination times cannot change the composite nature. (C) 2013 The Electrochemical Society. All rights reserved.
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页码：A1 / A5
页数：5
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