Coordination compounds having redox non-innocent ligands and flow batteries containing the same
First Claim
1. A flow battery comprising:
- a first half-cell having a first electrolyte solution therein, the first electrolyte solution comprising a coordination compound having at least one redox non-innocent ligand coordinated to a metal center,wherein the at least one redox non-innocent ligand bears a quinone functional group,wherein the quinone functional group is part of an aromatic ring bearing a catechol group, fused to the aromatic ring bearing the catechol group, or tethered via a linker to the aromatic ring bearing the catechol group.
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Abstract
Electrolyte solutions for flow batteries and other electrochemical systems can contain an active material capable of transferring more than one electron per oxidation-reduction cycle. Such active materials can include coordination compounds containing a metal center and at least one redox non-innocent ligand. Accordingly, flow batteries can include a first half-cell having a first electrolyte solution therein, where the first electrolyte solution contains a coordination compound having at least one redox non-innocent ligand coordinated to a metal center. Particular redox non-innocent ligands can include those bearing a quinone functional group, such as substituted catecholates bearing a quinone functional group. Some active materials can include compositions containing a coordination compound having at least one redox non-innocent ligand coordinated to a metal center, where the at least one redox non-innocent ligand is a substituted catecholate or a salt thereof bearing a quinone functional group.
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Citations
15 Claims
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1. A flow battery comprising:
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a first half-cell having a first electrolyte solution therein, the first electrolyte solution comprising a coordination compound having at least one redox non-innocent ligand coordinated to a metal center, wherein the at least one redox non-innocent ligand bears a quinone functional group, wherein the quinone functional group is part of an aromatic ring bearing a catechol group, fused to the aromatic ring bearing the catechol group, or tethered via a linker to the aromatic ring bearing the catechol group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A composition comprising:
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a coordination compound having at least one redox non-innocent ligand coordinated to a metal center; wherein the at least one redox non-innocent ligand comprises a substituted catecholate or a salt thereof bearing a quinone functional group; wherein the quinone functional group is part of an aromatic ring bearing a catechol group, fused to the aromatic ring bearing the catechol group, or tethered via a linker to the aromatic ring bearing the catechol group. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification