锂硫电池新型硫/碳复合正极材料的研究  

Research progress on novel sulfur/carbon composites as cathode for lithium-sulfur batteries

作　　者：陈漾[1] 张霞[1] 李亚娟[1] 刘又年[1] 

机构地区：[1]中南大学化学化工学院,湖南长沙410083

出　　处：《电源技术》2013年第12期2243-2246,共4页Chinese Journal of Power Sources

基　　金：国家自然科学基金项目(51104184)

摘　　要：锂硫电池以高能量密度受到了广泛的关注,可能成为新一代的高性能储能体系。硫基正极材料是提高锂硫电池性能的关键。综述了锂硫电池中几类主要的新型硫/碳复合正极材料。为了进一步提高硫/碳复合材料的倍率性能和循环寿命,分析了硫/碳复合材料两种常见的改性方法:聚合物包覆和纳米氧化物掺杂。对未来硫/碳复合材料的主要研究方向进行了展望。Lithium-sulfur batteries with high energy density have attracted much attention in recent years, and may become the next-generation energy storage system. The sulfur cathode material is the key to improve the performance of the lithium-sulfur batteries. Novel sulfur/carbon composites as cathode for lithium-sulfur batteries were reviewed, such as sulfur/porous carbon, sulfur/carbon nanotube or fiber, sulfur/carbon sphere, sulfur/graphite derivatives. In addition, two modification methods were presented, that is, polymer coatings and nano metal oxides additives, for further improving the rate performance and cycle life of the lithium-sulfur batteries based on the sulfur/carbon composites cathode. The main prospective research directions were proposed finally.

关 键 词：锂硫电池 正极 硫 碳复合材料 改性 

分 类 号：TM912[电气工程—电力电子与电力传动]