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.

引用

页码：A1 / A5

页数：5

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