| 一种二元醇对胶体电解液性能的影响 |
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| 引用本文： | 陈妹琼,郭文显,张敏,程发良,陈红雨. 一种二元醇对胶体电解液性能的影响[J]. 蓄电池, 2014, 0(4): 159-163 |
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| 作者姓名： | 陈妹琼 郭文显 张敏 程发良 陈红雨 |
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| 作者单位： | 东莞理工学院城市学院东莞市绿色能源重点实验室;东莞理工学院生物传感器研究中心;华南师范大学化学与环境学院; |
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| 基金项目： | 国家自然科学基金项目(No.21375016);广东省自然科学基金项目(No.S2013010014324);东莞市科技计划项目(No.2011108101016) |
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| 摘 要： | 运用循环伏安、交流阻抗、线性扫描等方法研究了添加一种二元醇—乙二醇对纳米气相二氧化硅胶体电解液性能的影响。结果表明,1%乙二醇的添加有利于气相二氧化硅的分散,使得其最佳分散时间缩短56%。同时,乙二醇的加入还能较好提高电解液的容量,降低内阻,抑制析氢和析氧反应。扫描电子显微镜结果表明,乙二醇的添加使得凝胶结构更多孔疏松。
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| 关 键 词： | 胶体电解液 乙二醇 气相二氧化硅 铅酸蓄电池 |
Effects of a diol on the properties of gel electrolyte |
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| Affiliation: | CHEN Mei-qiong, GUO Wen-xian, ZHANG Min, CHENG Fa-liang, CHEN Hong-yu (1. Dongguan Key Laboratory of Green Energy, City College of Dongguan University of Technology, Dongguan Guangdong 523419; 2. Biosensor Research Centre, Dongguan University of Technology, Dongguan Guangdong 523106; 3. School of Chemistry and Environment, South China Normal University, Guangzhou Guangdong 510006, China) |
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| Abstract: | The effects of glycol on the properties of gel electrolytes have been investigated by means of cyclic voltammetry（CV）, electrochemical impedance spectroscopy（EIS）, linear sweep voltammetry（LSV）, and scanning electron microscopy（SEM）. The results show that adding 1 % glycol helps to improve the dispersion properties of fumed silica by a decrease in 56 % optimum dispersion time. Moreover, the resistance of the gel decreases and the capacity increases greatly with adding of glycol. Finally, adding of glycol helps to restrain the evolution of both oxygen and hydrogen. The morphology study shows that the dried gel with glycol is more uniform and porous than that of no additive. |
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| Keywords: | gel electrolyte glycol fumed silica lead-acid battery |
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