Synthesis and electrochemical properties of a new layered cathode material LiNi1/2Mn1/3V1/6O2

被引：2
|
作者：
Cui, Ping [1 ]
Liang, Ying [1 ]
机构：
[1] Hubei Univ Arts & Sci, Coll Chem Engn & Food Sci, Xiangyang 441053, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2012年 / 83卷
关键词：
Cathode material; Layered structure; Li-ion batteries; Electrochemistry; LITHIUM-ION BATTERIES; LI CONTENT; PERFORMANCE; LICO1/3NI1/3MN1/3O2; LINI1/3CO1/3MN1/3O2; LINI1/3MN1/3CO1/3O2; VO2;
D O I：
10.1016/j.electacta.2012.07.097
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A new layered type lithium nickel manganese vanadium oxide with the composition of LiNi1/2Mn1/13V1/6O2 was synthesized by rheological phase reaction method. The morphology, structural and electrochemical behavior were characterized by means of SEM, X-ray diffraction analysis and electrochemical charge-discharge tests. Phase-pure LiNi1/2Mn1/3V1/6O2 was obtained when the mixed precursors of Ni-Mn-V-O composite oxide and LiON were calcined at 800 degrees C for 30 h. X-ray photoelectron spectroscopy (XPS) was used to measure the oxidation states of Ni, Mn and V. It is found that the submicro-sized LiNi1/2Mn1/3V1/6O2 delivers an initial discharge capacity of 142 mA h/g in the cut-off voltage of 2.5-4.8 V. and exhibits good cycle performance. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：183 / 187
页数：5
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