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Issue 11, 2016
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Tin/vanadium redox electrolyte for battery-like energy storage capacity combined with supercapacitor-like power handling

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Abstract

We introduce a high performance hybrid electrochemical energy storage system based on an aqueous electrolyte containing tin sulfate (SnSO4) and vanadyl sulfate (VOSO4) with nanoporous activated carbon. The energy storage mechanism of this system benefits from the unique synergy of concurrent electric double-layer formation, reversible tin redox reactions, and three-step redox reactions of vanadium. The hybrid system showed excellent electrochemical properties such as a promising energy capacity (ca. 75 W h kg−1, 30 W h L−1) and a maximum power of up to 1.5 kW kg−1 (600 W L−1, 250 W m−2), exhibiting capacitor-like galvanostatic cycling stability and a low level of self-discharging rate.

Graphical abstract: Tin/vanadium redox electrolyte for battery-like energy storage capacity combined with supercapacitor-like power handling

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Publication details

The article was received on 08 Mar 2016, accepted on 09 Jun 2016 and first published on 09 Jun 2016


Article type: Communication
DOI: 10.1039/C6EE00712K
Citation: Energy Environ. Sci., 2016,9, 3392-3398
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    Tin/vanadium redox electrolyte for battery-like energy storage capacity combined with supercapacitor-like power handling

    J. Lee, B. Krüner, A. Tolosa, S. Sathyamoorthi, D. Kim, S. Choudhury, K. Seo and V. Presser, Energy Environ. Sci., 2016, 9, 3392
    DOI: 10.1039/C6EE00712K

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