Multiple-ion-doped lithium nickel oxides as cathode materials for lithium-ion batteries

被引：23
|
作者：
Wang, GX [1 ]
Bewlay, S [1 ]
Yao, J [1 ]
Chen, Y [1 ]
Guo, ZP [1 ]
Liu, HK [1 ]
Dou, SX [1 ]
机构：
[1] Univ Wollongong, Battery Technol Res Program, Inst Supercond & Elect Mat, Wollongong, NSW 2522, Australia
来源：
JOURNAL OF POWER SOURCES | 2003年 / 119卷
关键词：
lithium-ion battery; cathode; ion-doping; ac impedance;
D O I：
10.1016/S0378-7753(03)00177-0
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：
Several multiple-ion-doped lithium nickel oxides with formula of LiMnxCoyNi1-x-yO2 were synthesized via solid-state reactions at high temperature. These phase-pure LiMnxCoyNi1-x-yO2 compounds have a layered hexagonal structure, and their electrochemical properties were systematically investigated. Typical cathodes can deliver a capacity in the range of 140-180 mAh/g with fairly stable cyclability. The kinetics of lithium insertion in these cathodes were characterized via ac impedance measurements. These newly developed compounds show great promises as cathode materials for future lithium-ion batteries with low cost and less toxicity. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：189 / 194
页数：6
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