Synthesis and Electrochemical Properties of Li[Li0.2Mn0.54Ni0.13Co0.13]O2 as Cathode Material for Li-ion Batteries

被引：0

作者：

Du Ke ^{[1
]}

Zhou Weiying ^{[1
]}

Hu Guorong ^{[1
]}

Peng Zhongdong ^{[1
]}

Jiang Qinglai ^{[1
]}

机构：

[1] Cent South Univ, Dept Met Sci & Engn, Changsha 410083, Peoples R China

来源：

ACTA CHIMICA SINICA | 2010年 / 68卷 / 14期

关键词：

Li[Li0.2Mn0.54Ni0.13Co0.13]O-2; lithium-ion battery; cathode material; mechanical activation; HIGH-CAPACITY; LITHIUM; LI(NI1/3CO1/3MN1/3)O-2; PERFORMANCE; ELECTRODES; CHEMISTRY; MN; NI; CO;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Li[Li0.2Mn0.54Ni0.13Co0.13]O-2 was synthesized from LiOH center dot H2O, Ni2O3, Co3O4 and MnO2 by improved solid state method. The raw materials were mixed with mechanical activation process, and then calcined at high temperature in air. The products were analyzed by X-ray diffractometry (XRD), scaning electron microscopy (SEM) and electrochemical tests. The results showed that the sandwich Li[Li0.2Mn0.54Ni0.13Co0.13]O-2 material obtained at 900 degrees C for 10 h exhibited uniform and fine particle sizes. The initial discharge capacity of prepared Li[Li0.2Mn0.54Ni0.13Co0.13]O-2 is 248.2 mAh/g at room temperature, and manitains 239.4 mAh/g after 50 cycles at a constant discharge current of 60 mA/g, indicating high electrochemical capacity and good cycling stability. Its cycle ability was also investigated at 55 and 0 degrees C.

引用

页码：1391 / 1398

页数：8

共 28 条

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