摘要
以正硅酸乙酯(TEOS)为前驱体,LiClO4为添加盐原位复合制得了PEO基聚合物电解质,并在原位复合的同时加入硅烷偶联剂KH560对生成的纳米SiO2表面改性,制得改性聚合物电解质。交流阻抗测试结果表明,原位复合SiO2的聚合物电解质,导电性能明显改善,而原位复合偶联剂改性SiO2的聚合物电解质,导电性能的改善更加明显。扫描电子显微镜(SEM)和X射线衍射分析(XRD)测试结果从不同的方面解释了导电性能改善原因。
Composite polymer electrolytes based on poly （ethylene oxide） （PEO） were prepared in-situ by using tetraethyl orthosilicate （TEOS） as processor and LiCIO4 as doping salt. Silicon coupling agent KH560 was added contemporarily to modify the surface of SiO2 particles. The ionic conductivity was investigated by A.C. impedance. The results show that in presence of the filler, there is an enhancement of ionic conductivity, especially that of the KH560-modifled. The phenomenon was explained by scanning electron microscope （SEM） and X-ray diffraction （XRD）.
出处
《电源技术》
CAS
CSCD
北大核心
2007年第2期154-156,共3页
Chinese Journal of Power Sources
关键词
聚合物电解质
原位改性
离子电导率
composite polymer electrolytes
in-situ modification
ionic conductivity
