Low temperature water based electrolytes for MnO2/carbon supercapacitors

Alexander J. Roberts, Angela F.Danil De Namor, Robert C.T. Slade

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Birnessite nanotubes and activated carbon electrodes have been used in supercapacitor cells to assess the performance of new aqueous based electrolyte systems at temperatures as low as -30 °C. The addition of ethylene glycol to aqueous sodium, lithium, potassium and ammonium sulfates has resulted in electrolytes that are still in liquid phase at such low temperatures. Extensive electrochemical testing showed that in such systems, operation of these aqueous based supercapacitors is possible at -30 °C with a specific capacitance of over 30 F g(-1) and good cycleability.
Original languageEnglish
Pages (from-to)3518-3526
Number of pages9
JournalPhysical Chemistry Chemical Physics
Volume15
Issue number10
Early online date28 Jan 2013
DOIs
Publication statusPublished - 14 Mar 2013

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electrochemical capacitors
Electrolytes
Carbon
electrolytes
lithium sulfates
ammonium sulfates
Ethylene Glycol
Water
carbon
Ammonium Sulfate
activated carbon
sodium sulfates
Activated carbon
Nanotubes
water
glycols
sulfates
potassium
liquid phases
ethylene

Cite this

Low temperature water based electrolytes for MnO2/carbon supercapacitors. / Roberts, Alexander J.; De Namor, Angela F.Danil; Slade, Robert C.T.

In: Physical Chemistry Chemical Physics, Vol. 15, No. 10, 14.03.2013, p. 3518-3526.

Research output: Contribution to journalArticle

Roberts, Alexander J. ; De Namor, Angela F.Danil ; Slade, Robert C.T. / Low temperature water based electrolytes for MnO2/carbon supercapacitors. In: Physical Chemistry Chemical Physics. 2013 ; Vol. 15, No. 10. pp. 3518-3526.
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