多元醇对气相二氧化硅胶体电解液电化学性能的影响  

Effects of polyol on the electrochemical properties of the gel electrolyte with fumed silica

作　　者：陈妹琼[1] 张敏[1] 蔡志泉[1] 代相成[2] 程发良[1] 陈红雨[3] 

机构地区：[1]东莞理工学院城市学院,广东东莞523106 [2]安徽大学化学与化工学院,安徽合肥230001 [3]华南师范大学化学与环境学院,广东广州510006

出　　处：《蓄电池》2010年第2期58-62,共5页Chinese LABAT Man

基　　金：东莞市科技计划项目(2008108151074)

摘　　要：以乙二醇、季戊四醇和聚乙二醇为例,用循环伏安和电化学阻抗法研究了多元醇对气相二氧化硅胶体电解液电化学性能的影响。结果表明,添加适量的乙二醇和季戊四醇有利于提高纯铅电极在胶体电解液中的氧化还原电流,降低胶体电解液的电化学转移电阻。但是添加聚乙二醇-6000和添加过量的乙二醇和季戊四醇,不利于胶体电解液电化学性能的提高。添加聚乙二醇-6000不利于形成触变性凝胶。The effects of glycol, pentaerythritol and polyethylene glycol on the electrochemical properties of gel electrolytes have been investigated by means of cyclic voltammetry （CV） and electrochemical impedance spectroscopy （EIS）. The results show that proper content of glycol and pentaerythritol can help to increase the redox current of the lead electrode and decrease the charge-transfer resistance of the gel electrolyte. The added polyethylene glycol as well as excessive glycol and pentaerythritol cannot improve the electro- chemical properties of the gel electrolyte. Furthermore, the added polyethylene glycol could not make thixotropy gel.

关 键 词：胶体电解液 乙二醇 季戊四醇 聚乙二醇 铅酸蓄电池 

分 类 号：TM912.9[电气工程—电力电子与电力传动]