摘要
选取5种常见锂盐LiClO_4、LiBO_2、LiAc、LiNO_3和LiBr,熔融复合后形成共熔盐。通过两次正交实验优化锂盐配比,制备了一种新型低温共熔盐。采用X射线衍射(XRD)和差热分析(DTA)对共熔盐的结构和热性能进行了表征。研究结果表明:当熔盐组成为LiClO_4∶LiNO_3∶LiBr=3∶4∶2(摩尔比)时,其室温电导率最高(3.1110^(-4)S·cm^(-1)),熔点最低(128℃)。熔盐的组成对其电导率和熔点有很大影响。制备低温共熔盐应尽量选择晶格能低、熔点低的锂盐。
Two orthogonal experiments on five kinds of ordinary lithium salt were done to optimize the proportion of lithium salts.Thereby, a new type of low-melting-point eutectic salt was prepared. Its structure and thermal behavior were characterized by X-ray diffraction and differential thermal analysis respectively.The results show that the eutectic salt obtains the maximal room temperature conductivity（3.11×10^-4S·cm^-1） and the lowest molten point（128℃） when its cemposite mole ratio is [LiClO4]：[LiNO3]：[LiBr]=3：4：2.The composition of eutectic salt has crucial effect on conductivity and molten point, therefore,the lithium salts with low lattice energy and molten point are appropriate choise for low-melting-point eutectic salt preparation,
出处
《电源技术》
CAS
CSCD
北大核心
2006年第1期34-37,共4页
Chinese Journal of Power Sources
关键词
低温共熔盐
固态聚合物电解质
离子电导率
正交实验
low-melting-point eutectic salt
solid polymer electrolyte
ionic conductivity
orthogonal experiment
