锂/硫电池正极材料的改性研究进展  

Research progress on modification of positive electrode materials of Li/S battery

作　　者：董宣 宋和伟 李雪[1] 纪群 王存国[1] DONG Xuan;SONG Hewei;LI Xue;JI Qun;WANG Cunguo(Key Laboratory of Rubber-plastics,Ministry of Education,Shandong Province Key Lab.of Rubber-plastics,Qingdao University of Science and Technology,Qingdao 266042,China;Key Laboratory of Nanodevices and Applications&Collaborative Innovation Center of Suzhou Nano Science and Technology,Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences(CAS),Suzhou 215123,China)

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室山东省橡塑材料与工程重点实验室,山东青岛266042 [2]中科院苏州纳米技术与纳米仿生研究所纳米器件及相关材料研究部,江苏苏州215123

出　　处：《化工科技》2021年第3期67-74,共8页Science & Technology in Chemical Industry

基　　金：国家高端外国专家项目(中组部办公厅字2017-21);山东省教育厅项目(SDYJG19089);山东省潍坊市高层次创新创业人才计划项目(潍办字2013-69)。

摘　　要：为了解决锂/硫电池中硫基电极材料导电性差且存在着穿梭效应、体积膨胀效应等缺点,人们进行了大量的改性研究。其中,用氮掺杂的多孔碳材料容易对电解液中溶解的多硫化物活性材料进行更好的吸附,从而抑制了锂/硫电池中多硫化物的溶解和迁移而引起的穿梭效应;另外,导电聚合物具有较好的电子导电性,作为硫/碳复合材料的载体,可以提高硫基电极材料的电导率,使锂/硫电池具有更好的循环稳定性。对锂/硫电池硫基复合电极材料的上述2种重要改性方法进行了详述,介绍了在锂/硫电池中的应用研究进展状况,并对上述材料在电化学储能中的应用进行了展望。In order to solve the problems of poor conductivity,shuttle effect and volume expansion effect of sulfur based electrode materials in lithium/sulfur batteries,a lot of modification studies have been carried out.Among them,the porous carbon materials doped with nitrogen can easily adsorb the polysulfide active materials dissolved in the electrolyte,so as to inhibit the shuttle effect caused by the dissolution and migration of polysulfide in lithium/sulfur battery.In addition,the conductive polymer as the carrier of sulfur/carbon composite materials,has good electronic conductivity,and can improve the conductivity of sulfur-based electrode materials and make it more stable and better cycle stability of lithium/sulfur battery.In this paper,the above two important modification methods of sulfur-based composite electrode materials for lithium/sulfur battery are described in detail.The research progress in lithium/sulfur battery is introduced and the application of these materials in electrochemical energy storage is prospected.

关 键 词：锂/硫电池 电极材料 金属有机框架材料 导电聚合物 穿梭效应 

分 类 号：O613.51[理学—无机化学] O646.5[理学—化学]