A mixture of LiNi1/3Co1/3Mn1/3O2 and LiCoO2 as positive active material of LIB for power application

被引：32

作者：

Liu, Xingjiang ^{[1
]}

Zhu, Guangyan ^{[1
]}

Yang, Kai ^{[1
]}

Wang, Jiqiang ^{[1
]}

机构：

[1] Tianjin Inst Power Sources, Tianjin 300381, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2007年 / 174卷 / 02期

关键词：

high-power; LiNi1/3CO1/3Mn1/3O2; positive active material; mixture; lithium-ion secondary cells;

D O I：

10.1016/j.jpowsour.2007.06.184

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 LiNi1/3CO1/3Mn1/3O2 has been synthesized by heating its precursor of Ni1/3CO1/3Mn1/3(OH)(2) and LiCO3 at the temperature around of 900 degrees C in air, and applied in high-power lithium-ion secondary cells by mixed with LiCoO2 in mass ratios of 1:1 and 1:2. The lithium-ion secondary cells with mixture of LiNi1/3CO1/3Mn1/3O2 and LiCoO2 showed a potential change similar to that of cell with pure LiCoO2 under low-rate discharge condition. The ICR 18650 LIB with the mixed positive electrode is capable of discharge at 15 C current rate with a better electrochemical performance compared to that of pure LiNi1/3CO1/3Mn1/3O2. Especially, the ICR 18650 LIB with the mixed positive electrode exhibits improved safety performance during overcharge period compared to LiCoO2. Therefore, the mixture of LiNi1/3Co1/3Mn1/3O2 and LiCoO2 is a promising alternative material to LiCoO2 for high-power LIB. (c) 2007 Published by Elsevier B.V.

引用

页码：1126 / 1130

页数：5

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