Synthesis and characterization of LiNiO2 compounds as cathodes for rechargeable lithium batteries

被引：81

作者：

Wang, GX ^{[1
]}

Zhong, S ^{[1
]}

Bradhurst, DH ^{[1
]}

Dou, SX ^{[1
]}

Liu, HK ^{[1
]}

机构：

[1] Univ Wollongong, Inst Superconducting & Elect Mat, Energy Storage Mat Program, Wollongong, NSW 2522, Australia

来源：

JOURNAL OF POWER SOURCES | 1998年 / 76卷 / 02期

关键词：

LiNiO2; compounds; lithium insertion/extraction; AC impedance spectroscopy;

D O I：

10.1016/S0378-7753(98)00153-0

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：

Layered LiNiO2, compounds are synthesized using a variety of conditions. Lithium hydroxide (LiOH . H2O) and nickel oxide (NiO) are used as precursors. Heat treatment at 750 degrees C in oxygen is found to be an optimum synthesis condition. Excess lithium (Li:Ni = 1 similar to 1.1 in molar ratio) is essential to produce LiNiO2 compounds with good electrochemical performance. According to DTA/TG analysis, the LiNiO2 can decompose to Li1-xNi1+xO2 which has a detrimental effect on the electrochemical reactivity of the LiNiO2, compound. The kinetic parameters of LiNiO2 electrodes are characterized by AC impedance spectroscopy. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：141 / 146

页数：6

共 17 条

[1] LIXNIO2, A PROMISING CATHODE FOR RECHARGEABLE LITHIUM BATTERIES [J].