Electrochemical Characteristics of LiMnO2 for Lithium Secondary Battery

被引：4
作者：
Jin, Bo [1 ]
Jun, Dae-Kyoo [2 ]
Gua, Hal-Bon [2 ]
机构：
[1] Jilin Univ, Coll Mat Sci & Engn, Changchun 130024, Jilin, Peoples R China
[2] Chonnam Natl Univ, Dept Elect Engn, Gwangju 500757, South Korea
来源：
TRANSACTIONS ON ELECTRICAL AND ELECTRONIC MATERIALS | 2006年 / 7卷 / 02期
关键词：
Orthorhombic; LiMnO2; Quenching; Cathode material;
D O I：
10.4313/TEEM.2006.7.2.076
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Well-defined orthorhombic LiMnO2 and LiCo0.1Mn0.9O2 were synthesized by a solid-state reaction and quenching process. X-ray diffraction (XRD) results revealed that the as synthesized powders showed an orthorhombic phase of a space group with Pmnm. The Li/LiMnO2 and Li/LiCo0.1Mn0.9O2 cells were constituted and cycled galvanostatically in the voltage range of 2.0-4.3 V vs. Li/Li+ at a current density of 0.5 mA cm(-2) at room temperature and 50 degrees C, respectively. The results demonstrated that the highest specific capacity of Li/LiMnO2 cells at room temperature and 50 t was 95 and 155 mAh g(-1), respectively. As for Li/LiCo0.1Mn0.9O2 cells, the highest specific capacity at room temperature and 50 t was 160 and 250 mAh g(-1), respectively. It could be seen that the performance of Li/LiCo0.1Mn0.9O2 cells was better than that of Li/LiMnO2 cells.
引用
收藏
页码：76 / 80
页数：5
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