摘要
总结了近几年来锂硫电池正极材料的研究进展,简要阐释了锂硫电池正极材料的研究现状、存在的问题及其面临的挑战.通过碳材料的引入,导电聚合物的复合,金属氧化物的添加均不同程度地提高了硫电极材料的电导率,有效抑制了多硫化物的溶解,为体积膨胀提供了空间,从而改善了锂硫电池的活性物质利用率和循环稳定性.简化工艺,降低成本,提高硫的负载量,这将是下一阶段锂硫电池研究的重点.
This work has tersely illustrated the existing defects, research status, and facing challenges of Li-S batteries. Moreover, the study progress in recently years have also been concluded. By the introduction of carbon materials, conductive polymers, and metal oxides, the electron conductivity of the sulfur electrode is all improved in different degrees. In addition, these methods can effectively suppress the shuttle loss of the polysulfides as well as relieve the volume change of the electrode during cycling, which largely increase the utilization of active materials and cycle stability of Li-S batteries. Moreover, to simplify the preparation process, low the cost, and increase the sulfur loading will be the research focuses of next phase Li-S batteries.
出处
《分子科学学报》
CAS
CSCD
北大核心
2016年第5期367-378,共12页
Journal of Molecular Science
基金
吉林省教育厅高端人才计划资助项目(20923006)
关键词
锂硫电池
正极材料
储能装置
Li-S batteries
cathode materials
energy storage devices
