Lithium insertion and extraction kinetics of Li1+xV3O8

被引：64

作者：

Kawakita, J ^{[1
]}

Miura, T ^{[1
]}

Kishi, T ^{[1
]}

机构：

[1] Keio Univ, Fac Sci & Technol, Dept Appl Chem, Kouhoku Ku, Yokohama, Kanagawa 2238522, Japan

来源：

JOURNAL OF POWER SOURCES | 1999年 / 83卷 / 1-2期

关键词：

vanadate; lithium; insertion; extraction; kinetics;

D O I：

10.1016/S0378-7753(99)00270-0

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：

Lithium insertion and extraction kinetics of lithium trivanadate, Li1+xV3O8, was investigated by using the electrochemical measurements at various temperatures and current densities. The results showed that the reaction rates of both insertion and extraction were limited by the small diffusivity of Li+ ions in the Li4V3O8 phase formed for x > 1.5 upon lithiation. Extraction reaction was also dependent on the thermodynamic factor on the basis of the incomplete reversibility of transformation from the Li4V3O8 phase to the original LiV3O8 one. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：79 / 83

页数：5

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