Cu-doped V2O5 as a high-energy density cathode material for rechargeable lithium batteries

被引：29

作者：

Wei, Yingjin ^{[1
,2
]}

Ryu, Chang-Wan ^{[2
]}

Kim, Kwang-Bum ^{[2
]}

机构：

[1] Jilin Univ, Coll Mat Sci & Engn, Changchun 130023, Peoples R China

[2] Yonsei Univ, Div Engn & Mat Sci, Seoul 120749, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 459卷 / 1-2期

关键词：

energy storage materials; precipitation; electrochemical reaction;

D O I：

10.1016/j.jallcom.2007.04.275

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：

A uniform and high crystalline Cu0.04V2O5 Powder was prepared by precipitation method. The effects of Cu doping on the electrochemical properties of crystalline V2O5 were investigated by means of galvanostatic charge-discharge cycling, cyclic voltammetry and electrochemical impedance spectroscopy. The results showed that slight Cu doping significantly improved the electrochemical properties Of V2O5. Cu-doped Cu0.04V2O5 exhibited promising electrochemical performance, with a reversible energy density of 450 Wh/kg and a power density of 275 W/kg. (C) 2007 Elsevier B.V All rights reserved.

引用

页码：L13 / L17

页数：5

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