Synthesis of electroactive ionic liquids for flow battery applications
| DWPI Title: Metal ionic liquid used for redox flow battery, comprises cation containing transition metal and ligand containing amine functional group and hydroxyl functional group, and anion, and is nonaqueous liquid |
| Abstract: The present disclosure is directed to synthesizing metal ionic liquids with transition metal coordination cations, where such metal ionic liquids can be used in a flow battery. A cation of a metal ionic liquid includes a transition metal and a ligand coordinated to the transition metal. |
| Use: Metal ionic liquid used for flow battery applications e.g. redox flow battery (Claimed). |
| Advantage: The metal ionic liquid has negligible vapor pressure, and can support higher energy densities. The metal ionic liquid in a flow battery provides wider voltage windows, higher charge cycle efficiency, decreased temperature sensitivity, and increased cycle life. |
| Novelty: A metal ionic liquid comprises a cation, a ligand and an anion. The cation comprises a transition metal chosen from iron, copper, manganese, and/or zinc. The ligand is coordinated to the transition metal and comprises an amine functional group and a hydroxyl functional group. The anion is chosen from 2-ethylhexanoate, hexafluorophosphate, triflate, triflimide, and/or tetrafluoroborate. The metal ionic liquid is a nonaqueous liquid. |
| Filed: 8/2/2012 |
| Application Number: US13565619A |
| Tech ID: SD 11523.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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