AN INVESTIGATION INTO THE DISCHARGE CAPACITY LOSS FOR COMPOSITE INSERTION ELECTRODES BASED ON LIXV6O13

被引：21

作者：

BARKER, J

SAIDI, ES

SAIDI, MY

机构：

[1] Valence Technology Inc., San Jose, CA 95119

来源：

ELECTROCHIMICA ACTA | 1995年 / 40卷 / 08期

关键词：

DISCHARGE CAPACITY; INSERTION; LITHIUM; VANADIUM OXIDE;

D O I：

10.1016/0013-4686(95)00012-4

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

XRD and electrochemical methods were performed on the Li/LixV6O13 system in order to assess the degree of reversibility of the lithium insertion reaction following an extended cycling regime. The effect of repeated Li+ insertion did not result in any significant change in the V6O13 diffraction pattern. Constant current cycling and Electrochemical Voltage Spectroscopy (EVS) measurements confirm the excellent reversibility of the oxide. A slight capacity loss was observed following around 180 deep discharge cycles mainly associated with the lower voltage plateau around 2.10V vs. Li/Li+. The implications are discussed in terms of the Li insertion process and the mechanical and electrical properties of the V6O13 composite electrode.

引用

页码：949 / 952

页数：4

共 11 条

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