High energy density lithium ion batteries using Li2.6Co0.4-xCuxN (anode) and Cu0.04V2O5 (cathode) electrode materials

被引：10

作者：

Liu, Daliang ^{[1
]}

Zhan, Shiying ^{[1
]}

Chen, Gang ^{[1
]}

Pan, Wencheng ^{[1
]}

Wang, Chunzhong ^{[1
]}

Wei, Yingjin ^{[1
]}

机构：

[1] Jilin Univ, Coll Mat Sci & Engn, Dept Mat Sci, Changchun 130012, Peoples R China

来源：

MATERIALS LETTERS | 2008年 / 62卷 / 26期

基金：

中国国家自然科学基金;

关键词：

lithium ion battery; lithium cobalt nitride; vanadium oxide; electrical properties; electronic materials;

D O I：

10.1016/j.matlet.2008.06.036

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Li2.6Co0.4-xCuxN (x=0, 0.15) anode materials were prepared by conventional solid state reaction. Between both materials, Li2.6CO0.25CU0.15N exhibited better capacity retention than that of Li2.6CO0.4N. According to electrochemical impedance spectroscopy. the better cycling behavior of Li2.6CO0.25CU0.15N has been attributed to the improvement in interfacial compatibility between the electrode and electrolyte interface. A possible explanation to this was given. Li2.6Co0.4-xCuxN/Cu0.04V2O5 full-cells were assembled to investigate the reliability of Li2.6CO0.4-xCuxN anode materials in practical applications. The Li2.6CO0.25CU0.15N/Cu0.04V2O5 cell delivered a specific capacity of 260 mA h g(-1), and a specific energy of 505.7 mW h g(-1), which was much higher than that of C/LiCoO2 lithium ion batteries. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：4210 / 4212

页数：3

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