摘要
实验使用一种增塑性试剂—双（三氟甲基磺酰）亚胺锂改性PEO-PVDF基聚合物电解质设计并制备了一系列不同浓度双（三氟甲基磺酰）亚胺锂[LiN（SO2CF3）2,LiTFSI]改性的PEO基聚合物电解质。在聚合物电解质中LiTFSI起着增塑剂的作用,经其改性后,聚合物电解质的玻璃化转变温度降低,有利于高分子链段运动和离子传输,进而提高离子的电导率。最终对经增塑盐改性的电解质的特性及其所组装的染料敏化纳米晶太阳电池的光电转换性能进行了研究。
Using a type of Plasticity reagent-Lithium bis（trifluoromethane sulfonimide） modified PEO-PVDF radical polymer electrolyte to design and prepare a kinds of different Lithium bis（trifluoromethane sulfonimide） [LiN（SO2CF3）2, LiTFSI] modified PEO radical polymer electrolyte. LiTFSI played the role of plasticizer in polymer electrolyte. After the modification, the temperature of glassing of polymer electrolyte went lower, which was conducive to polymer chains movement and ion transport, hence, increasing the the conductivity of polymer electrolyte. At last studied on the photo-to-current conversion efficiencies of the DSSC with the polymer electrolytes modified by LiTFSI.
