Electrochemical performance of Li[LixNi(1-3x)/2Mn(1+x)/2]O2 cathode materials synthesized by a sol-gel method

被引：80

作者：

Kim, JH ^{[1
]}

Sun, YK ^{[1
]}

机构：

[1] Hanyang Univ, Coll Engn, Dept Chem Engn, Seoungdong Gu, Seoul 133791, South Korea

来源：

JOURNAL OF POWER SOURCES | 2003年 / 119卷

关键词：

lithium secondary batteries; sol-gel method; layered manganese; cathode materials; Li2MnO3;

D O I：

10.1016/S0378-7753(03)00172-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Layered Li[LixNi(1 -3x)/2Mn(1 + x)/2]O-2 materials with x = 0.05, 0.1, 0.15, and 0.2 were synthesized using a sol-gel method. The layered Li[LixNi(1-3x)/2Mn(1+x)/2]O2 structure was stabilized by a solid solution between LiNiO2 and Li2MnO3. The discharge capacity of the Li[LixNi(1 -3x)/2Mn(1+ x)/2]O-2 electrodes increased with decreasing Ni content. Li[LixNi(1 -3x)/2Mn(1 + x)/2]O-2 electrode with x = 0.05,01,015, and 0.2 delivered high discharge capacities of 184, 193, 206, and 209 mAh g(-1) at 30 degreesC, respectively, with excellent cycleability. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：166 / 170

页数：5

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