Effects of preparation methods of LiNi0.8Co0.2O2 cathode materials on their morphology and electrochemical performance

被引：74

作者：

Gong, ZL

Liu, HS

Guo, XJ

Zhang, ZR

Yang, Y ^{[1
]}

机构：

[1] Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

[2] Xiamen Univ, Dept Chem, Xiamen 361005, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2004年 / 136卷 / 01期

关键词：

Li-ion battery; sol-gel; solid-state reaction process; LiNi0.8Co0.2O2;

D O I：

10.1016/j.jpowsour.2004.05.022

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：

LiNi0.8Co0.2O2 as the cathode material for a lithium ion battery was prepared by two different methods, sol-gel method and the solid-state reaction process. The samples were characterized and tested by means of XRD, SEM, particle size analysis, BET, and electrochemical methods. The results of XRD show that both the LiNi0.8Co0.2O2 samples prepared by two different methods are isostructural with alpha-NaFeO2 with a space group R-3m. The results of electrochemical studies show that the sample prepared by the solid-state reaction process is superior to that by the sol-gel method in electrochemical performance. (C) 2004 Elsevier B.V. All rights reserved.

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页码：139 / 144

页数：6

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