Mixtures of azepanium based ionic liquids and propylene carbonate as high voltage electrolytes for supercapacitors
Mixtures of azepanium based ionic liquids and propylene carbonate as high voltage electrolytes for supercapacitors
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DOI：
10.1016/j.electacta.2014.11.189
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发表时间：
2015-01
影响因子：
6.6
通讯作者：
S. Pohlmann;T. Olyschläger;P. Goodrich;J. Vicente;J. Jacquemin;A. Balducci
中科院分区：
文献类型：
--
作者：
S. Pohlmann;T. Olyschläger;P. Goodrich;J. Vicente;J. Jacquemin;A. Balducci
研究了氮杂环庚烷基离子液体（IL）N-甲基，N-丁基-氮杂环庚烷双[（三氟甲烷）磺酰基]酰亚胺（Azp 14 TFSI）和碳酸丙烯酯（PC）的混合物作为电化学双层电容器（EDLC）的电解质组分。然后将所考虑的混合物的性质与N-丁基，N-甲基吡咯烷鎓双[（三氟甲烷）磺酰基]酰亚胺（Pyr 14 TFSI）和PC的混合物在粘度、电导率和电化学行为方面的性质进行比较。发现混合物的操作电位彼此相当，导致高达3.5V的操作电压，同时保持基于PC的EDLC电解质的低粘度和高电导率。
This work provides a study of mixtures of the azepanium-based ionic liquid (IL) N-methyl, N-butyl-azepanium bis[(trifluoromethane) sulfonyl]imide (Azp14TFSI) and propylene carbonate (PC) as electrolyte components in electrochemical double layer capacitors (EDLCs). The considered mixtures’ properties were then compared to the properties of mixtures of N-butyl, N-methylpyrrolidinium bis[(trifluoromethane) sulfonyl]imide (Pyr14TFSI) and PC in terms of viscosity, conductivity and electrochemical behavior. The mixtures’ operative potentials were found to be comparable to each other, leading to operative voltages as high as 3.5 V, while retaining the low viscosities and high conductivities of PC based EDLC electrolytes.