丙二醇对胶体电解质电化学性能的影响  

Effects of propylene glycol on electrochemical performance of gel electrolyte

作　　者：陈妹琼[1] 郭文显[1] 张敏 程发良[1,2] 

机构地区：[1]东莞理工学院城市学院,东莞市绿色能源重点实验室,广东东莞523419 [2]东莞理工学院生物传感器研究中心,广东东莞523808

出　　处：《电池》2015年第1期31-33,共3页Battery Bimonthly

基　　金：国家自然科学基金(21375016);广东省自然科学基金(S2013010014324);东莞市科技计划项目(2011108101016)

摘　　要：用循环伏安法和SEM研究丙二醇对纳米气相二氧化硅胶体电解质性能的影响。添加丙二醇有利于提高电解质的充放电性能,但添加量应不高于0.05%。当丙二醇的添加量为0.05%时,可使气相二氧化硅的最佳分散时间缩短77.7%,胶体电解质具有更好的循环性能,以10 m V/s的速度在-1.3^-0.7 V循环100次后,峰电流为未添加时的2.77倍。SEM测试结果显示:添加丙二醇的胶体凝胶结构比未添加的更多孔、疏松。Effects of propylene glycol on the performance of nano fumed silica gel electrolytes were investigated by means of cyclic voltammetry and SEM. When the adding amount of propylene glycol was 0. 05%,the optimum dispersion time of fumed silica was reduced by 77. 7%,the cycle performance of gel electrolyte was better. After 100 cycles with the speed of 10 m V / s in- 1. 3 ^- 0. 7 V,the peak current was 2. 77 times of the blank. SEM test results showed that the gel structure of gel added propylene glycol was more uniform and porous than that of the blank.

关 键 词：胶体电解质 丙二醇 气相二氧化硅 铅酸电池 

分 类 号：O623.413[理学—有机化学] O646[理学—化学]