Synthesis and characterization of high-voltage cathode material LiNi0.5Mn1.5O4 by one-step solid-state reaction

被引：6

作者：

Wang, ZX ^{[1
]}

Fang, HS ^{[1
]}

Yin, ZL ^{[1
]}

Li, XH ^{[1
]}

Guo, HJ ^{[1
]}

Peng, WJ ^{[1
]}

机构：

[1] Cent S Univ, Sch Met Sci & Engn, Changsha 410083, Peoples R China

来源：

JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY | 2005年 / 12卷 / Suppl 1期

关键词：

lithium ion batteries; cathode material; LiNi0.5Mn1.5O4; solid-state reaction;

D O I：

10.1007/s11771-005-0371-8

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

LiNi0.5Mn1.5O4 was prepared under various conditions by one-step solid-state reaction in air and its properties were investigated by X-ray diffractormetry (XRD), scanning electron microscopy (SEM) and electrochemical measurement. XRD patterns show that LiNi0.5Mn1.5O4 synthesized under various conditions has cubic spinel structure. SEM images exhibit that the particle size increases with increasing calcination temperature and time. Electrochemical test shows that the LiNi0.5Mn1.5O4 calcined at 700 degrees C for 24 h delivers up to 143 mA center dot h/g, and the capacity retains 132 mA center dot h/g after 30 cycles.

引用

页码：54 / 58

页数：5

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