Synthesis by a soft chemistry route and characterization of LiNixCo1-xO2 (0<=x<=1) cathode materials

被引：162

作者：

Caurant, D ^{[1
]}

Baffier, N ^{[1
]}

Garcia, B ^{[1
]}

PereiraRamos, JP ^{[1
]}

机构：

[1] CNRS,LAB ELECTROCHIM CATALYSE & SYNTHESE ORGAN,UMR 28,F-94320 THIAIS,FRANCE

来源：

SOLID STATE IONICS | 1996年 / 91卷 / 1-2期

关键词：

lithium battery; lithium-nickel-cobalt oxide; soft chemistry synthesis;

D O I：

10.1016/S0167-2738(96)00418-3

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：

LiNixCo1-xO2 cathode materials have been prepared using a soft chemistry route for 0 less than or equal to x less than or equal to 1. Co-precipitation of hydroxides is followed by drying and heating at temperatures between 700 and 800 degrees C for a short time (2 to 5 h) under oxygen flow. Due to the high reactivity of the co-precipitates, preparation time is shorter than with powders mixing methods generally used, A DTA-TGA study has been performed for each co-precipitate. LiNixCo1-xO2 compounds show good crystallinity, but lithium deficiency appears for nickel-rich samples. LiNi0.8Co0.2O2 shows the best electrochemical charge-discharge behavior among all the nickel-cobalt compounds studied. This has been attributed to a low Lithium deficiency and to a high nickel content.

引用

页码：45 / 54

页数：10

共 38 条

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