The electrochemical characteristics of sulfur composite cathode

被引：10

作者：

Wang, Li ^{[1
]}

He, Xiangming ^{[1
]}

Ren, Jianguo ^{[1
]}

Pu, Weihua ^{[1
]}

Li, Jianjun ^{[1
]}

Gao, Jian ^{[1
]}

机构：

[1] Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China

来源：

IONICS | 2010年 / 16卷 / 08期

关键词：

Sulfur composite cathode materials; Charge/discharge manner; Compaction strength; Electrochemical characteristics; Cathodes; Lithium batteries; CHARGE/DISCHARGE CHARACTERISTICS; LITHIUM STORAGE; ANODE MATERIAL; BATTERY; CELLS; ELECTRODE; CARBON;

D O I：

10.1007/s11581-010-0451-0

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：

The electrochemical characteristics of the sulfur composite cathode for reversible lithium storage were investigated based on different charge/discharge manner. The sulfur composites showed novel electrochemical characteristics as well as the high specific capacity and the good cycleability. The investigation showed that the deep discharge down to less than 1.0 V benefited the performance of the sulfur composite cathode, and the overcharge up to 4.0 V deteriorated its performance. The compaction of the sulfur composite electrode was also investigated. The electrochemical performance of the sulfur composite electrodes was tested at the compaction strength from 0 to 24 MPa, showing that the sulfur composites electrode presented the best electrochemical characteristics at the certain compaction strength of 8 MPa. Its performance seriously deteriorated at the compaction strength of 24 MPa. The study reveals that the appropriate compaction strength benefits the electrochemical performance of the sulfur composite electrode.

引用

页码：689 / 695

页数：7

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