期刊
JOURNAL OF POWER SOURCES
卷 204, 期 -, 页码 213-219出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2011.12.025
关键词
Supercapacitor; Adiponitrile; High voltage; Acetonitrile
资金
- University of Munster
- Ministry of Innovation, Science and Research of North Rhine-Westphalia (MIWF)
- Federal Ministry of Education and Research (BMBF) [035F0390]
In this paper we report on the use of 0.7 M Et4NBF4 in ADN as electrolyte in EDLCs. 0.7 M Et4NBF4 in ADN displays a wide electrochemical stability window and promising values of conductivity and viscosity. Using this electrolyte it is possible to realize EDLCs with an operative voltage as high as 3.75 V. At RT, these high voltage EDLCs display high coulombic efficiencies, low ESRs and high specific capacitances stable for several thousands of cycles. The wide electrochemical stability of ADN contributes to preserve the integrity of the electrolyte at potentials in which other conventional organic electrolytes (e.g. ACN) are normally subject to deterioration and/or decomposition processes. Thanks to this intrinsic stability, EDLCs containing 0.7 M Et4NBF4 ADN as electrolyte display high capacitance retention over 35,000 cycles carried out with cell voltage as high as 3.5 V. (C) 2011 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据