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

页码：76 / 80

页数：5

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