Ionogel-based solid-state supercapacitor operating over a wide range of temperature

An inorganic gel polymer electrolyte based on the confinement of an ionic liquid mixture (1:1 by weight or molar ratio) of N-methyl-N-propylpiperidinium bis(fluorosulfonyl)imide (PIP13FSI) and N-butyl-N-methylpyrrolidinium bis(fluorosulfonyl)imide (PYR14FSI) into a SiO2 matrix prepared from a sol-ge...

Full description

Saved in:
Bibliographic Details
Published in:Electrochimica acta 2016-07, Vol.206, p.490-495
Main Authors: Negre, L., Daffos, B., Turq, V., Taberna, P.L., Simon, P.
Format: Article
Language:English
Subjects:
Chemical Sciences
Confinement
Devices
Electric potential
Electrodes
Electrolytes
Engineering Sciences
Ionic conductivity
Material chemistry
Materials
Supercapacitors
Voltage
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An inorganic gel polymer electrolyte based on the confinement of an ionic liquid mixture (1:1 by weight or molar ratio) of N-methyl-N-propylpiperidinium bis(fluorosulfonyl)imide (PIP13FSI) and N-butyl-N-methylpyrrolidinium bis(fluorosulfonyl)imide (PYR14FSI) into a SiO2 matrix prepared from a sol-gel method was prepared and further used as electrolyte in an all solid-state supercapacitor. The synthetized ionogel exhibits a high ionic conductivity over a wide temperature range (from 0.2mScm−1 at −40°C up to 10mScm−1 at 60°C). The ionogel-based supercapacitor using two activated carbon electrodes can be operated over 3V cell voltage window. Moreover this all solid-supercapacitor shows a capacitance up to 90Fg−1at room temperature. These encouraging results show the interest of developing such devices, including non-toxic and safer electrolytes, packaging issues and flexible devices development.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2016.02.013