MLPB-PEG_(400)/LiClO_4固体聚合物电解质的电化学性能研究  

Electrochemical performance of MLPB-PEG_(400)/LiClO_4 solid polymer electrolyte

作　　者：赵鸽[1] 王金伟[1] 刘建[1] 

机构地区：[1]北京科技大学新材料技术研究院,北京100083

出　　处：《电子元件与材料》2011年第9期36-39,共4页Electronic Components And Materials

基　　金：北京市重点实验室基金资助项目(No.SYS100080419)

摘　　要：采用溶液浇铸法,以聚乙二醇400(PEG400)接枝马来酸酐聚丁二烯(MLPB)为基体,高氯酸锂(LiClO4)为碱金属盐,制备了MLPB-PEG400/LiClO4固体聚合物电解质。研究了MLPB-PEG400/LiClO4电解质的电化学性能。结果表明,所制氧锂摩尔比为8的MLPB-PEG400/LiClO4固体聚合物电解质综合性能较好,其电导率变化在温度为25～90℃时符合Arrhenius方程,在温度大于100℃时趋于稳定,电化学稳定窗口达到4.5 V。MLPB-PEG400/LiClO4 solid polymer electrolytes were prepared by solvent casting, with the maleic anhydride polybutadiene （MLPB） grained polyethylene glycol 400 （PEG400） as matrix and LiClO4 as alkali metal salt. The electrochemical performance of the MLPB-PEG400/LiClO4 electrolytes was studied. The results show that： the MLPB-PEG400/LiClO4 electrolyte with the mole ratio of oxide to lithium equaling to 8 shows good performance; The changes in its conductivity versus temperature obey the Arrhenius equation in a range of 25 ℃ to 90 ℃, while become insignificant when the temperature is above 100 ℃; Moreover, its electrochemical stability window reaches 4.5 V.

关 键 词：固体聚合物电解质 聚丁二烯 电导率 电化学稳定窗口 

分 类 号：TM91[电气工程—电力电子与电力传动]