Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 139, Issue 8, Pages 2924-2927Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.7b00147
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Funding
- Joint Center for Energy Storage Research (JCESR)
- Department of Energy
- Energy Innovation Hub
- NSF [CHE-0840456]
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The deployment of nonaqueous redox flow batteries for grid-scale energy storage has been impeded by a lack of electrolytes that undergo redox events at as low (anolyte) or high (catholyte) potentials as possible while exhibiting the stability and cycling lifetimes necessary for a battery device. Herein, we report a new approach to electrolyte design that uses physical organic tools for the predictive targeting of electrolytes that possess this combination of properties. We apply this approach to the identification of a new pyridinium-based anolyte that undergoes 1e(-) electrochemical charge discharge cycling at low potential (-1.21 V vs Fc/Fc(+)) to a 95% state-of-charge without detectable capacity loss after 200 cycles.
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