高氯酸锂-乙酰胺/乙烯脲体系的二元熔盐电解质  

Binary Molten Salt Electrolytes Based on LiClO_4 with Acetamide or Ethyleneurea

作　　者：陈人杰[1] 吴锋[1] 梁宏莹[2] 毛立彩[1] 

机构地区：[1]北京理工大学化工与环境学院,北京100081 [2]国家高技术绿色材料发展中心,北京100081

出　　处：《物理化学学报》2004年第3期323-326,共4页Acta Physico-Chimica Sinica

基　　金：国家重点基础研究发展计划(2002CB211800);国家基础研究重大项目前期研究专项(2001CCA05000)基金~~

摘　　要：制备了高氯酸锂与乙酰胺和乙烯脲形成的二元低温熔盐电解质,采用差示扫描量热法、交流阻抗法和循环伏安法分别对其热学、电化学性质进行了研究.测试结果表明,高氯酸锂-乙酰胺体系具有较好的热稳定性和高的电导性,配比n(LiClO4):n(Acetamide)=1.0:5.5的样品室温(25℃)电导率为1.25×10-3S·cm-1,80℃电导率为1.15×10-2S·cm-1;其电化学稳定电位窗近3V左右.Thermal and electrochemical properties of new low-temperature molten salt electrolytes based on LiClO4 with acetamide or ethyleneurea have been studied by differential scanning calorimetry, ac impedance spectroscopy and cyclic voltammertry, respectively. These electrolytes appear as liquid at room temperature through they are composed of two solids. DSC analysis shows that the LiClO4-acetamide electrolyte has the preferable thermal stability. The conductivity of LiClO4-acetamide electrolyte with a molar ratio of 1.0: 5.5 is 1.25 x 10(-3) S . cm(-1) at 25 degreesC and 1.15 x 10(-2) S . cm(-1) at 80 degreesC, and the electrochemical window of it is about 3 V.

关 键 词：高氯酸锂 乙酰胺 乙烯脲 二元低温熔盐电解质 热学性质 电化学性质 

分 类 号：O646[理学—物理化学]