US Patent Fletcher et al.pdf (320.42 kB)

High temperature supercapacitator

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posted on 08.06.2016, 12:28 by Stephen Fletcher, Victoria J. Black
A supercapacitor device having a housing and at least one supercapacitor cell disposed in the housing, where the supercapacitor cell may include: two working electrode layers separated by an electrode separator wherein each working electrode layer is electrically connected to a current collector supported upon an inert substrate layer; an electrolyte-impervious layer disposed between each working electrode layer and each conducting layer to protect the conducting layer; and an ionic liquid electrolyte disposed within the area occupied by the working electrode layers and the electrode separator, wherein the ionic liquid electrolyte has at least one cationic component comprising a central cation with an asymmetric arrangement of substituents bonded thereto. The ionic liquid electrolyte may be gelled by a silica gellant to inhibit electrolyte flow. The operating range of the supercapacitor device is at least 20-220.degree. C.

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  • Science

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  • Chemistry

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This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2016

Notes

United States Patent 9,318,271 (April 19, 2016)

Other identifier

US 9,318, 271

Language

en

Location

US

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