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Journal article
Formulation of ionic-liquid electrolyte to expand the voltage window of supercapacitors
Angewandte Chemie (International ed.), v 54(16), pp 4806-4809
13 Apr 2015
PMID: 25788418
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
An effective method to expand the operating potential window (OPW) of electrochemical capacitors based on formulating the ionic-liquid (IL) electrolytes is reported. Using model electrochemical cells based on two identical onion-like carbon (OLC) electrodes and two different IL electrolytes and their mixtures, it was shown that the asymmetric behavior of the electrolyte cation and anion toward the two electrodes limits the OPW of the cell and therefore its energy density. Also, a general solution to this problem is proposed by formulating the IL electrolyte mixtures to balance the capacitance of electrodes in a symmetric supercapacitor.
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Details
- Title
- Formulation of ionic-liquid electrolyte to expand the voltage window of supercapacitors
- Creators
- Katherine L Van Aken - A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA 19104 (USA)Majid BeidaghiYury Gogotsi
- Publication Details
- Angewandte Chemie (International ed.), v 54(16), pp 4806-4809
- Publisher
- Wiley; Germany
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000352622400019
- Scopus ID
- 2-s2.0-84926436193
- Other Identifier
- 991014877775604721
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- Web of Science research areas
- Chemistry, Multidisciplinary