聚合物锂盐在锂离子电池电解质中的应用  

Application Progress of Polymer Lithium Salts in Li-Ion Battery Electrolytes

作　　者：梁波[1,2] 唐思绮 刘燕平[1] 欧阳陈志 

机构地区：[1]长沙理工大学汽车与机械工程学院,湖南长沙410114 [2]中南大学冶金科学与程学院,湖南长沙410083

出　　处：《高分子材料科学与工程》2014年第3期113-118,共6页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(50803008);中国博士后特别资助项目(201104508);湖南省教育厅优秀青年基金(11B001);湖南省科技厅项目(2011RS4067);可再生能源电力技术湖南省重点实验室开放基金(2011KFJJ006)

摘　　要：锂盐是获得安全性能良好的锂离子二次电池的重要因素。聚合物锂盐具有高电导率、宽电化学窗口、良好热稳定性和电化学稳定性,以及在全固态锂离子电池中的应用引起了国内外研究者的关注。文中分析了聚合物锂盐的结构与电池性能之间的关系,包括结构对材料的热稳定性、力学性能、锂离子迁移数、离子电导率和电化学窗口等的影响。总结了聚合物锂盐的合成方法,综述了均聚物型、共聚物型和离子液体型等具有代表性的聚合物锂盐在锂离子电池电解质中的应用研究进展,并对未来新型锂盐的研究方法及发展方向进行了展望。Lithium salts are key factors for good safety lithium ion secondary battery. Polymer lithium salts due to its good performance, such as high conductivity, wide electrochemical window, good thermal stability and electrochemical stability, and in all-solid-state lithium-ion battery have attracted much attention. The synthesis methods and the relationship between the structure and battery performance of the polymer lithium salts were reviewed, including the thermal stability, mechanical properties, lithium ion transference number, the ionic conductivity of polymer electrolyte and electrochemical window. The application progress of typical polymer lithium salts such as homopolymer, copolymer and ionic liquids acted as electrolyte in lithium ion battery was summarized. An application prospect of polymer lithium salts was also proposed.

关 键 词：聚合物锂盐 锂离子迁移数 电导率 聚合物电解质 

分 类 号：TQ317[化学工程—高聚物工业]