High Voltage Redox-Meditated Flow Batteries with Prussian Blue Solid Booster
This work presents Prussian blue solid boosters for use in high voltage redox-mediated flow batteries (RMFB) based on non-aqueous electrolytes. The system consisted of sodium iodide as a redox mediator in an acetonitrile catholyte containing solid Prussian blue powder. The combination enabled the so...
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| Main Authors: | , , |
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| Format: | article |
| Language: | EN |
| Published: |
MDPI AG
2021
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| Subjects: | |
| Online Access: | https://doaj.org/article/bca293a62ccf4c35ac4c69d531e61a5b |
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| Summary: | This work presents Prussian blue solid boosters for use in high voltage redox-mediated flow batteries (RMFB) based on non-aqueous electrolytes. The system consisted of sodium iodide as a redox mediator in an acetonitrile catholyte containing solid Prussian blue powder. The combination enabled the solid booster utilization in the proposed systems to reach as high as 66 mAh g<sup>−1</sup> for hydrated Prussian blue and 110 mAh g<sup>−1</sup> for anhydrous rhombohedral Prussian blue in cells with an average potential of about 3 V (vs. Na<sup>+</sup>/Na). Though the boosted system suffers from capacity fading, it opens up possibilities to develop non-aqueous RMFB with low-cost materials. |
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