Novel ionic liquid electrolyte for electrochemical double layer capacitors
Novel ionic liquid electrolyte for electrochemical double layer capacitors
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DOI：
10.1016/j.elecom.2009.01.013
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发表时间：
2009-03-01
影响因子：
5.4
通讯作者：
Haldar, Pradeep
中科院分区：
文献类型：
--
作者：
Devarajan, Thamarai;Higashiya, Seiichiro;Haldar, Pradeep
采用新工艺合成了一种新型含氧螺环铵盐恶唑烷-3-螺-1′-吡咯吡啶四氟硼酸盐（CPBF4），作为电化学双层电容器（EDLC）的电解质。OPBF4与市售的四氟硼酸四乙铵（TEABF(4)）相比，OPBF4化合物具有更高的电压窗和更高的电容。此外，OPBF4的摩尔浓度为3 M，而TEABF(4)在乙腈（AN）中的摩尔浓度最高为1.5 M。这对于制造能量密度更高的EDLC尤为重要。这是在EDLC器件中测试OPBF4化合物的第一份报告，它有资格作为高性能超级电容器TEABF(4)的合理替代品。(C) 2009 Elsevier B.V.版权所有
A novel oxygen containing spiro ammonium salt, oxazolidine-3-spiro-1'-pyrrolidinium tetrafluoroborate (CPBF4) Was synthesized using an innovative technique for use as electrolyte in electrochemical double layer capacitors (EDLC). Comparison of OPBF4 with commercially available, tetraethyl ammonium tetrafluoroborate (TEABF(4)) showed higher voltage window and higher capacitance for the OPBF4 compound. Moreover, molarity of 3 M was produced with OPBF4 as compared to a maximum of 1.5 M for TEABF(4) in acetonitrile (AN). This is especially important to enable the fabrication of higher energy density EDLC. This is the first report of testing OPBF4 Compound in an EDLC device, and it qualifies as a reasonable alternative to TEABF(4) for high performance ultracapacitors. (C) 2009 Elsevier B.V. All rights reserved.