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

本文的研究结果总结如下：1)氟烷基端盖低聚物（AMPS和GEMA）在非交联条件下在水和有机极性溶剂中均可凝胶化。2)这些氟烷基化凝胶材料可以很容易地用锂盐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(CF_3SO_2)_2锂盐浓度的增加而增加，且在LiN(CF_3SO_2)_2锂盐浓度大于5.3 mmol/g时趋于饱和。4)在氟烷基化低聚物分子链中引入乙烯基磷酸（VPA）等阳离子片段可以促进导电。5)用1-MPTF等离子溶液代替溶剂DMS可获得2.1x10^<-2> S/cm的最大电导率。6)制备的二次电池开路电压低，电流密度小。与商用电池相比，这些电池的特性已经足够了。

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.