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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
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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