DEVELOPMENT OF FLUORINATED GEL ELECTROLYTES HAVING HIGH LITHIUM IONIC CONDUCTION AND ITS APPLICATION TO SECONDARY BATTERIES

本研究的结果总结如下：1）氟烷基封端低聚物（AMPS和GEMA）在非交联条件下，在水和有机极性溶剂中均能凝胶化; 2）这些氟烷基化的凝胶材料易于与锂盐一起制备锂离子凝胶电解质; 3）AMPS和GEMA凝胶电解质的离子电导率均随LiN中锂盐浓度的增加而增加（CF_3SO_2）_2的浓度大于5.3 mmol/g时，其电导率趋于饱和。4）在氟烷基化齐聚物分子链中引入乙烯基磷酸（VPA）等阳离子链段，可以提高齐聚物的电导率。5）用1-MPTF等离子溶液代替DMS作为溶剂，可以获得最大电导率2.1 × 10 ~（-5）S/cm<-2>。所制造的二次电池不仅开路电压低，而且电流密度也小。这些电池的特性与商业电池相比已经足够了。

The results of this research are summarized as follows.1) Fluoroalkyl end-capped oligomers (AMPS and GEMA) confirmed to be gelation both in water and in organic polar solvents under non-crosslinking conditions.2) These fluoroalkylated gel materials can be easily produced lithium ion gel electrolytes with lithium salts.3) Ionic conductivities of both AMPS and GEMA gel electrolytes increased with increasing the lithium salts concentration of LiN(CF_3SO_2)_2, and had a tendency to saturate at a concentration greater than 5.3 mmol/g.4)It was cleared to promote conductivity to introduce the cation segments such as vinyl phosphoric acid (VPA) into the molecular chain of fluoroalkylated oligomers.5) The maximum conductivity of 2.1x10^<-2> S/cm could be obtained by using ionic solution such as 1-MPTF instead of DMS for solvents.6) Open voltage of fabricated secondary battery was not only low but also the current density was small. The characteristics of these batteries were enough when compared with commercial batteries.