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凝胶型离子液体/聚合物电解质的电化学性能 被引量：6

Investigation of electrochemical properties of ionic liquid-polymer gel electrolyte from hydrophilic and hydrophobic ionic liquids
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摘要 以聚偏氟乙烯-六氟丙烯共聚物[P(VDF-HFP)]为基体,将3-乙基-1-甲基咪唑鎓四氟硼酸盐(EMIBF4)和3-丁基-1-甲基咪唑鎓六氟磷酸盐(BMIPF6)等室温离子液体作为离子源和增塑剂,制备了EMIBF4/P(VDF-HFP)和BMIPF6/P(VDF-HFP)凝胶型离子液体/聚合物电解质;通过核磁共振(1HNMR)谱和热失重方法(TG)分别对其结构和热稳定性进行了表征和热失重分析。由电化学性能测试考察了两类离子液体/P(VDF-HFP)聚合物电解质的分解电压、室温离子电导率及离子液体/P(VDF-HFP)的质量配比、温度等对电导率的影响。结果表明:所制备的离子液体/聚合物电解质在305℃时仍具有较好的热稳定性,其室温离子电导率均达10-3S/cm数量级以上,其中EMIBF4与P(VDF-HFP)的质量比为2∶1时室温电导率可达3.67mS/cm。 Two kinds of room temperature ionic liquids, hydrophilic EMIBF4 and hydro phobic BMIPF6 were prepared by two-steps synthesis. The gel ionic liquid-polymer electrolytes prepared by incorporating these ionic liquids had higher decomposition temperatures. The electrochemical stability of the resulting ionic liquid-polymer electrolytes was studied by linear sweep voltammetry , and the ionic conductivities of them were investigated by AC impedance measurement. The gel electrolytes prepared with ionic liquid EMIBF4 ： P（VDF-HFP） mass ratio of 2 ： 1 exhibited excellent ionic conductivity up to 3.67 mS/cm.
作者 蒋晶 苏光耀 王毅 李朝晖 高德淑 王承位
机构地区 湘潭大学化学学院
出处 《电源技术》 CAS CSCD 北大核心 2006年第3期219-223,共5页 Chinese Journal of Power Sources
关键词 离子液体 聚偏氟乙烯-六氟丙烯共聚物 聚合物电解质 离子电导率 ionic liquid poly（vinylidene fluoride co-hexafluoropropylene） polymer electrolyte ionic conductivity
分类号 TM911 [电气工程—电力电子与电力传动]
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参考文献21

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共引文献205

同被引文献112

引证文献6

二级引证文献36

电源技术
2006年 第3期

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