PVDF-PEO交联复合型聚合物电解质膜研究  

Study on cross-linked composite polymer electrolyte of PVDF-PEO

作　　者：陈益奎[1] 史鹏飞[1] 张世杰[2] 张遥[2] 赵晖[2] 段艳丽[2] 

机构地区：[1]哈尔滨工业大学应用化学系,黑龙江哈尔滨150001 [2]天津电源研究所,天津300381

出　　处：《电源技术》2003年第6期509-511,共3页Chinese Journal of Power Sources

摘　　要：对使用聚偏氟乙烯(PVDF)、聚氧化乙烯(PEO)共混并添加气相SiO2组成的聚合物电解质膜中的聚偏氟乙烯进行交联处理,得到交联复合型聚合物电解质膜。交联后的聚偏氟乙烯使聚合物膜具有良好的强度,聚合物膜中未交联的聚氧化乙烯能在电解液中溶涨,使聚合物膜具有良好的电导率并与电极具有良好的复合能力。比较了聚偏氟乙烯与聚氧化乙烯投料比例对交联比例、电导率的影响,在聚合物电池中进行了电性能初步试验。结果表明,所制备的聚合物电解质膜具有良好的高低温性能,与锂具有良好的相容性,组成的聚合物锂离子蓄电池具有良好的循环性能。Cross-linked composite polymer electrolyte was prepared by making PVDF in composite polymer electrolyte of PVDF-PEO with fumed silicon cross-linked. It has good mechanical strength and ionic conductivity, and it is easy to integrate with electrodes. Because cross-linked PVDF is insoluble in electrolyte, PEO not cross-linked can be swelled in electrolyte. The effect of PVDF-PEO ration on cross-linked rate and conductivity was researched. Polymer lithium ion battery with this electrolyte film was tested. The experimental results show that the cross-linked composite polymer electrolyte has good temperature performance; compatibility with lithium, the polymer lithium ion battery with it has good cycling performance.

关 键 词：聚合物锂离子蓄电池 PVDF-PEO 交联复合型聚合物电解质膜 电解液 

分 类 号：TM912.2[电气工程—电力电子与电力传动]