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Novel Organosilicon Ionic Liquid Based Electrolytes for Supercapacitors
Zhong Hao-Xiang; Zhao Chun-Bao; Luo Hao; Zhang Ling-Zhi
2012-11-01
发表期刊ACTA PHYSICO-CHIMICA SINICA
卷号28期号:11页码:2641-2647
摘要

A novel room temperature organosilicon ionic liquid (SiN1IL) was synthesized and its chemical structure and electrochemical window were characterized. The ionic conductivity of SiN1IL/propylene carbonate (PC)/acetonitrile (AN) solution was 19.6 mS.cm(-1), comparable with the commercial electrolytes currently used in supercapacitors. The electrochemical performance of the cells using activated carbon as electrodes and SiN1IL-based formula with PC/AN as electrolytes was systematically evaluated. SiN1IL/PC electrolyte exhibited superior rate capability and lower impedance compared to a conventional electrolyte (tetraethylammonium tetrafluoroborate (Et4NBF4)/PC). Upon applying a working voltage of 2.7 V, the SiN1IL/PC cell had a specific capacitance of 108 F.g(-1) at a current density of 1000 mA.g(-1).

文章类型Article
其他摘要
设计合成了一种新型有机硅室温离子液体(SiN1IL), 并对其化学结构和电化学窗口进行表征, 通过与具 有高介电常数的丙烯碳酸酯(PC)/低粘度的乙腈(AN)匹配组成电解液, 其离子电导率达到商业实际应用的要求 (19.6 mS·cm-1). 对以活性炭(AC)为对称电极的超级电容器的电化学性能测试表明, SiN1IL基电解液与活性炭 有很好的界面相容性, 其高倍率充放电、阻抗性能优于商用四乙基四氟硼酸铵(Et4NBF4)/PC电解液, 在电流密 度为1000 mA·g-1的条件下, 工作电压为2.7 V, 其比电容为108 F·g-1.
关键词Organosilicon Ionic Liquid Supercapacitor Electrolyte Activated Carbon
WOS标题词Science & Technology ; Physical Sciences
DOI10.3866/PKU.WHXB201207181
研究领域[WOS]Chemistry
关键词[WOS]DOUBLE-LAYER CAPACITORS ; BATTERIES ; CARBONATE
收录类别SCI
语种中文
WOS类目Chemistry, Physical
WOS记录号WOS:000311597200017
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10540
专题中国科学院广州能源研究所
作者单位Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
推荐引用方式
GB/T 7714
Zhong Hao-Xiang,Zhao Chun-Bao,Luo Hao,et al. Novel Organosilicon Ionic Liquid Based Electrolytes for Supercapacitors[J]. ACTA PHYSICO-CHIMICA SINICA,2012,28(11):2641-2647.
APA Zhong Hao-Xiang,Zhao Chun-Bao,Luo Hao,&Zhang Ling-Zhi.(2012).Novel Organosilicon Ionic Liquid Based Electrolytes for Supercapacitors.ACTA PHYSICO-CHIMICA SINICA,28(11),2641-2647.
MLA Zhong Hao-Xiang,et al."Novel Organosilicon Ionic Liquid Based Electrolytes for Supercapacitors".ACTA PHYSICO-CHIMICA SINICA 28.11(2012):2641-2647.
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