Patent ID: 9673473
Date: 2017-06-06
CPC Classifications: H01M,Y02E

Claim:
1. A redox flow battery comprising: a positive electrode cell comprising a negative electrode cell comprising an ion-exchange membrane disposed between the positive electrode cell and the negative electrode cell, wherein the catholyte solution and the anolyte solution each comprises wherein the metal-ligand coordination compound has a metal and a ligand, wherein the metal-ligand coordination compound comprises a nitrogen-containing heteroaromatic ligand, a nitrogen-containing heteroaliphatic ligand, or a combination thereof, wherein the metal-ligand coordination compound in at least one of the catholyte solution and the anolyte solution further comprises at least one electron donating group, wherein when the metal-ligand coordination compound comprises the nitrogen-containing heteroaromatic ligand, the at least one electron donating group is selected from a hydroxyl group, a thiol group, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an alkenyl group, an alkynyl group, an amide group, an ester group, and an amine group (—NR wherein when the metal-ligand coordination compound comprises the nitrogen-containing heteroaliphatic ligand, the at least one electron donating group is selected from a hydroxyl group, a thiol group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an alkenyl group, an alkynyl group, an amide group, an ester group, and an amine group (—NR