1. Physical Organic Approach to Persistent, Cyclable, Low-Potential Electrolytes for Flow Battery Applications
- Author
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Matthew S. Sigman, David P. Hickey, Monique E. Cook, Shelley D. Minteer, Sophia G. Robinson, Shoshanna Barnett, Melanie S. Sanford, and Christo S. Sevov
- Subjects
Battery (electricity) ,Inorganic chemistry ,02 engineering and technology ,General Chemistry ,Electrolyte ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Electrochemistry ,01 natural sciences ,Biochemistry ,Flow battery ,Redox ,Catalysis ,Energy storage ,0104 chemical sciences ,chemistry.chemical_compound ,Colloid and Surface Chemistry ,chemistry ,Pyridinium ,0210 nano-technology ,Capacity loss - Abstract
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.
- Published
- 2017