Ionic liquids in a poly ethylene oxide cross-linked gel polymer as an electrolyte for electrical double layer capacitor

In the present work, we developed a gel polymer electrolyte via the incorporation of a room temperature ionic liquid into a cross-linked polymer matrix. The cross-linked gel electrolyte was prepared using a free radical polymerization of methacrylate and dimethacrylate oligomers dissolved in 1-propy...

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Bibliographic Details
Published in:Journal of power sources 2017-02, Vol.342, p.872-878
Main Authors: Chaudoy, V., Tran Van, F., Deschamps, M., Ghamouss, F.
Format: Article
Language:English
Subjects:
Chemical Sciences
Cross-linked polymer electrolyte
EDLC
Gel polymer electrolyte
Material chemistry
P13FSI
Room temperature ionic liquid
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Summary:In the present work, we developed a gel polymer electrolyte via the incorporation of a room temperature ionic liquid into a cross-linked polymer matrix. The cross-linked gel electrolyte was prepared using a free radical polymerization of methacrylate and dimethacrylate oligomers dissolved in 1-propyl-1-methylpyrrolidinium bis(fluorosulfonyl)imide. Combining the advantages of the ionic liquids and of conventional polymers, the cross-linked gel polymer electrolyte was used both as a separator and as an electrolyte for a leakage-free and non-flammable EDLC supercapacitor. The quasi-all solid-state supercapacitors showed rather good capacitance, power and energy densities by comparison to a liquid electrolyte-based EDLC. [Display omitted] •Cross-linked PEO-RTIL gel electrolyte prepared by a one step in situ method.•The cross-linked gel is freestanding, ions conducting, and shows a dry aspect.•The gel was used as an electrolyte/separator in a quasi-solid EDLC.
ISSN:0378-7753
1873-2755
DOI:10.1016/j.jpowsour.2016.12.097