University of Kentucky Research Foundation

Aman Preet Kaur

Susan Anne Odom

Matthew D Casselman

Corrine F Elliott

N Harsha Attanayake

Giorgio Baggi

A combination of redox active compounds is useful in connection with a rechargeable battery and includes a first redox active compound having a first solubility, and a second redox active compound having a second solubility, wherein the combination has a third solubility that is greater than one or both of the first solubility and the second solubility.

Unique redox-active phenothiazine combinations with depressed melting points for increased solubility and method of use in energy storage and in redox flow batteries

Compounds for use as electrolyte in a non-aqueous redox battery are provided, including an N-substituted phenothiazine compound according to the formula: R' is alkyl and R is selected from alkyl, aryl, alkylaryl, alkoxyaryl, alkylcarboxyl, arylcarbonyl, haloalkyl, perfluoroalkyl, glycol, polyether, haloaryl, a negative electrolyte, a polymerizable unit, and a polymer.

Two-electron donating phenothiazines and use thereof

Compounds for use as photoredox catalysts and as redox shuttles in a rechargeable battery having a high-voltage cathode providing overcharge protection capabilities are provided, including a compound according to the formula: wherein R is selected from the group consisting of alkyl, aryl, alkylaryl, alkoxyaryl, alkylcarboxyl, aryl carbonyl, haloalkyl, perfluoroalkyl, glycols, haloaryl, a negative electrolyte, and a polymer.

Rechargeable batteries including high-voltage cathode and redox shuttle conferring overcharge protection

A non-aqueous redox flow battery includes a negative electrode immersed in a first non-aqueous liquid electrolyte solution, a positive electrode immersed in a second non-aqueous liquid electrolyte solution, and a semi-permeable separator interposed between the negative and positive electrodes, wherein the second the non-aqueous liquid electrolyte solution comprises a compound of the formula: 

Non-aqueous redox flow batteries including 3,7-perfluoroalkylated phenothiazine derivatives

Highly soluble, liquid phenothiazines containing methoxy-terminated ether and oligoether substituents are disclosed with high diffusion coefficients and robust performance in electrochemical measurements, which can be synthesized in one step from commercially-available starting materials, thereby circumventing previous synthetic limitations.

Growing community of inventors

Lexington, KY, United States of America

Aman Preet Kaur