Formulation of ionic liquid electrolyte to expand the voltage window of supercapacitors
Journal Article
·
· Angewandte Chemie (International Edition)
- Drexel Univ., Philadelphia, PA (United States)
We report an effective method to expand the operating potential window (OPW) of electrochemical capacitors based on formulating the ionic liquid (IL) electrolytes. Moreover, 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’s cation and anion toward the two electrodes limits the OPW of the cell and therefore its energy density. Additionally, a general solution to this problem is proposed by formulating the IL electrolyte mixtures to balance the capacitance of electrodes in a symmetric supercapacitor.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE; USDOE Office of Science (SC)
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1265356
- Alternate ID(s):
- OSTI ID: 1210402
OSTI ID: 1786063
OSTI ID: 1386357
- Journal Information:
- Angewandte Chemie (International Edition), Journal Name: Angewandte Chemie (International Edition) Journal Issue: 16 Vol. 54; ISSN 1433-7851
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Formulation of Ionic-Liquid Electrolyte To Expand the Voltage Window of Supercapacitors
Formulation of Ionic‐Liquid Electrolyte To Expand the Voltage Window of Supercapacitors
Journal Article
·
Wed Mar 18 00:00:00 EDT 2015
· Angewandte Chemie (International Edition)
·
OSTI ID:1386357
Formulation of Ionic‐Liquid Electrolyte To Expand the Voltage Window of Supercapacitors
Journal Article
·
Tue Mar 17 20:00:00 EDT 2015
· Angewandte Chemie
·
OSTI ID:1786021