Electrochemical characteristics of sulfur composite cathode materials in rechargeable lithium batteries

被引：63

作者：

Wang, J ^{[1
]}

Wang, YW ^{[1
]}

He, XM ^{[1
]}

Ren, JG ^{[1
]}

Jiang, CY ^{[1
]}

Wan, CR ^{[1
]}

机构：

[1] Tsinghua Univ, INET, Beijing 102201, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2004年 / 138卷 / 1-2期

关键词：

sulfur cathode; composite materials; rechargeable lithium batteries; cycle performance; material utilization efficiency;

D O I：

10.1016/j.jpowsour.2004.06.032

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：

The charge and discharge characteristics of lithium batteries with sulfur composite cathodes have been investigated. The sulfur composites showed novel electrochemical characteristics. Almost all sulfur in the composites was reduced to Li2S in the first discharge process and the capacity stabilized at ca. 700 mAh/g and utilization of sulfur corresponded to be above 90%, plus good cyclability. Charged and discharged at relatively high current density, the specific capacity remained above 600 mAh/g and the charge/discharge efficiencies were about 99%. (C) 2004 Elsevier B.V.. All rights reserved.

引用

页码：271 / 273

页数：3

共 17 条

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