Natural Cellulose: A Green Alternative Binder for High Voltage Electrochemical Double Layer Capacitors Containing Ionic Liquid-Based Electrolytes

2014 ◽  
Vol 161 (3) ◽  
pp. A368-A375 ◽  
Author(s):  
Alberto Varzi ◽  
Andrea Balducci ◽  
Stefano Passerini
Keyword(s):  
Ionic Liquid ◽  
Double Layer ◽  
High Voltage ◽  
Electrochemical Double Layer Capacitors ◽  
Natural Cellulose ◽  
Electrochemical Double Layer ◽  
Double Layer Capacitors

scholarly journals High Performance Graphene-Based Electrochemical Double Layer Capacitors Using 1-Butyl-1-methylpyrrolidinium tris (pentafluoroethyl) trifluorophosphate Ionic Liquid as an Electrolyte

Electronics ◽  
2018 ◽  
Vol 7 (10) ◽  
pp. 229 ◽  
Author(s):  
Jacob D. Huffstutler ◽  
Milinda Wasala ◽  
Julianna Richie ◽  
John Barron ◽  
Andrew Winchester ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Energy Density ◽  
Double Layer ◽  
Specific Energy ◽  
High Energy ◽  
High Energy Density ◽  
Electrochemical Double Layer Capacitors ◽  
Electrochemical Double Layer ◽  
High Specific Energy ◽  
Double Layer Capacitors

There are several advantages to developing electrochemical double-layer capacitors (EDLC) or supercapacitors with high specific energy densities, for example, these can be used in applications related to quality power generation, voltage stabilization, and frequency regulation. In this regard, ionic liquids capable of providing a higher voltage window of operations compared to an aqueous and/or polymer electrolyte can significantly enhance the specific energy densities of EDLCs. Here we demonstrate that EDLCs fabricated using ionic liquid 1-butyl-1-methylpyrrolidinium tris (pentafluoroethyl) trifluorophosphate (BMP-FAP) as an electrolyte and few layer liquid-phase exfoliated graphene as electrodes show remarkable performance compared to EDLC devices fabricated with aqueous potassium hydroxide (6M) as well as widely used ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate (BMIM-PF6). We found that graphene EDLC’s with BMP-FAP as an electrolyte possess a high specific energy density of ≈25 Wh/kg along with specific capacitance values as high as 200 F/g and having an operating voltage windows of >5 volts with a rapid charge transfer response. These findings strongly indicate the suitability of BMP-FAP as a good choice of electrolyte for high energy density EDLC devices.

Cyano Ester as Solvent for High Voltage Electrochemical Double Layer Capacitors

2017 ◽  
Vol 224 ◽  
pp. 278-284 ◽  
Author(s):  
Christoph Schütter ◽  
Stefano Passerini ◽  
Martin Korth ◽  
Andrea Balducci
Keyword(s):  
Double Layer ◽  
High Voltage ◽  
Electrochemical Double Layer Capacitors ◽  
Electrochemical Double Layer ◽  
Double Layer Capacitors
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