Effect of LiOH concentration change on simultaneous preparation of LiCoO2 film and powder by hydrothermal method

被引：35

作者：

Song, SW ^{[1
]}

Han, KS ^{[1
]}

Sasagawa, I ^{[1
]}

Watanabe, T ^{[1
]}

Yoshimura, M ^{[1
]}

机构：

[1] Tokyo Inst Technol, Ctr Mat Design, Mat & Struct Lab, Yokohama, Kanagawa 2268503, Japan

来源：

SOLID STATE IONICS | 2000年 / 135卷 / 1-4期

基金：

日本学术振兴会;

关键词：

LiCoO2; film; powder; lithium microbatteries; hydrothermal; homogeneous and heterogeneous nucleation;

D O I：

10.1016/S0167-2738(00)00446-X

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：

LiCoO2 film and powder applicable to rechargeable lithium microbatteries have been directly prepared at the same time by hydrothermal treatment of a cobalt metal plate in a concentrated LiOH solution. The effect of LiOH concentration (0.1-6 M) on the structural change in film and powder has been examined using the XRD, micro-Raman and SEM analyses. It is found that all the powders with a layered hexagonal structure an precipitated by homogeneous nucleation regardless of LiOH concentration, whereas the dependence of film structure on the concentration is revealed by a selection of phase such as cobalt hydroxide species, hexagonal or cubic spinel phases formed by heterogeneous nucleation. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：277 / 281

页数：5

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