摘要
通过紫外固化的方法合成了一种新型的聚氧化乙烯(PEO)基凝胶型聚合物膜,该聚合物膜具有适当的交联密度、良好的空间结构稳定性以及吸附液体电解液的性能.利用所合成的凝胶型聚合物膜制备了凝胶型聚合物电解质.研究表明,该聚合物电解质膜具有较高的离子电导率,其室温离子电导率最高可达1 mS/cm左右;较宽的电化学稳定窗口和较好的热稳定性能,可达到锂离子二次电池的使用要求.
A novel type of gel polymer membrane with proper crosslinking density, structural stability and good absorbency property to liquid electrolyte was synthesized via ultraviolet initiated polymerization. A series of gel polymer electrolytes with high conductivity, better electrochemical stability and good thermal stability was prepared. The ionic conductivity was measured and the highest one is about 1 × 10^-3 S · cm^-1 at room temperature. Excellent electrochemical performances such as high ionic conductivity and broad electrochemical stability window and good thermal stability suggest that this novel type gel polymer elec- trolytes can be used as electrolyte materials for rechargeable lithium ion batteries.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2008年第5期711-715,共5页
Journal of Shanghai Jiaotong University
关键词
凝胶型
聚合物电解质
离子电导率
紫外固化
gel polymer
polymer electrolytes
ionic conductivity
ultraviolet initiated polymerization
