Crystal Structure Analysis and Electrochemical Properties of Chemically Delithiated Li0.13Mn0.54Ni0.13Co0.13O2-δ as Cathode Material for Rechargeable Mg Batteries

被引：13
|
作者：
Ishida, Naoya [1 ]
Nishigami, Ryuta [1 ]
Kitamura, Naoto [1 ]
Idemoto, Yasushi [1 ]
机构：
[1] Tokyo Univ Sci, 2641 Yamazaki, Noda, Chiba 2788510, Japan
来源：
CHEMISTRY LETTERS | 2017年 / 46卷 / 10期
基金：
日本科学技术振兴机构;
关键词：
Rechargeable Mg battery; Delithiated cathode material; XANES; MAGNESIUM;
D O I：
10.1246/cl.170615
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Chemically delithiated Li0.13Mn0.54Ni0.13Co0.13O2-delta was synthesized by the reaction of Li1.2Mn0.54Ni0.13Co0.13O2 with NO2BF4. Charge and discharge tests for the Li0.13Mn0.54Ni0.13Co0.13O2-delta/Mg alloy cell showed high discharge capacity of 273mAh g(-1). Since the XANES spectra showed a shift toward lower energy in the transition metals after discharge, the reduction of the main phase was confirmed accompanied with Mg intercalation. Rietveld analysis revealed that the mixed phases of layered rock-salt and Li2MnO3 types were generated by Mg insertion during the discharge process.
引用
收藏
页码：1508 / 1511
页数：4
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