Novel ionic liquid based electrolyte for double layer capacitors with enhanced high potential stability

2016 ◽  
Vol 59 (5) ◽  
pp. 547-550 ◽  
Author(s):  
Lan Zhang ◽  
Kun Dong ◽  
Shimou Chen ◽  
Suojiang Zhang
Keyword(s):  
Ionic Liquid ◽  
Double Layer ◽  
High Potential ◽  
High Potential Stability ◽  
Double Layer Capacitors ◽  
Potential Stability

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.

Solvent-free synthesis of an ionic liquid integrated ether-abundant polymer as a solid electrolyte for flexible electric double-layer capacitors

2017 ◽  
Vol 5 (37) ◽  
pp. 19703-19713 ◽  
Author(s):  
Ruiqi Na ◽  
Ching-Wen Su ◽  
Yi-Han Su ◽  
Yu-Chun Chen ◽  
Yen-Ming Chen ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Solid Electrolyte ◽  
Double Layer ◽  
Electric Double Layer ◽  
Solid Electrolytes ◽  
High Energy ◽  
Solvent Free ◽  
Double Layer Capacitors ◽  
Solvent Free Synthesis ◽  
Electric Double Layer Capacitors

Capitalizing on ether groups, solvent-free synthesis produces ionic liquid integrated solid electrolytes for flexible capacitors delivering high energy and power.

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