| LiODFB-LiPF6基电解液与活性炭电极的相容性研究 |
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| 引用本文： | 刘萍,李凡群,李劼,卢海,张治安,赖延清.LiODFB-LiPF6基电解液与活性炭电极的相容性研究[J].中南大学学报(自然科学版),2011,42(4). |
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| 作者姓名： | 刘萍 李凡群 李劼 卢海 张治安 赖延清 |
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| 作者单位： | 中南大学冶金科学与工程学院,湖南长沙,410083 |
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| 基金项目： | 国家科技支撑计划项目，国家自然科学基金 |
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| 摘 要： | 在活性炭超级电容器体系中,研究LiODFB与LiPF6组成的复合盐电解液与活性炭电极的相容性规律.研究结果表明:在LiODFB基电解液中加入LiPF6电解质盐能显著提高电解液的电导率;LiODFB-LiPF6复合盐电解液与活性炭电极材料有较好的相容性,但LiPF6浓度过大不利于双电层电容特性的发挥;在电解液中加入少量的LiPF6可有效增加双电层电容量;当LiPF6浓度为0.2 mol/L时,电容器容量达到最大;不添加LiPF6的纯LiODFB盐电解液的容最大,且l 500次循环的容量保持率超过96%.
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| 关 键 词： | LiODFB LiPF6 复合盐 电解液 超级电容器 |
Compatibility between LiODFB/LiPF6-based electrolyte and activated carbon electrode |
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| LIU Ping,LI Fan-qun,LI Jie,LU Hai,ZHANG Zhi-an,LAI Yan-qing.Compatibility between LiODFB/LiPF6-based electrolyte and activated carbon electrode[J].Journal of Central South University:Science and Technology,2011,42(4). |
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| Authors: | LIU Ping LI Fan-qun LI Jie LU Hai ZHANG Zhi-an LAI Yan-qing |
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| Institution: | LIU Ping,LI Fan-qun,LI Jie,LU Hai,ZHANG Zhi-an,LAI Yan-qing (School of Metallurgical Science and Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | The compatibilities between LiODFB/LiPF6-based electrolyte and activated carbon(AC) electrode material in supercapacitor system were investigated.The results show that addition of LiPF6 obviously enhances conductance of electrolyte.The favorable compatibility between LiODFB/LiPF6-based electrolyte and AC electrode is exhibited.However,high concentration of LiPF6 restrains the performance of double-layer capacitance.Addition of a small quantity of LiPF6 can increase capacities effectively.When additional con... |
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| Keywords: | LiODFB LiPF6 blend salt electrolyte supercapacitor |
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