University of Kentucky Research Foundation

Matthew D Casselman

Susan Anne Odom

Aman Preet Kaur

Corrine F Elliott

N Harsha Attanayake

Chad Risko

Subrahmanyam Modekrutti

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 in a rechargeable battery are provided, including a compound according to the formula: wherein Rand Rare independently selected from the group consisting of H, alkyl, aryl, perfluoroaryl, perfluoroalkyl, alkylaryl, alkoxyaryl, alkylcarboxyl, aryl carbonyl, haloalkyl, perfluoroalkyl, glycols, haloaryl, a negative electrolyte, and a polymer, so long as when Ris H, Ris not H; and Ris selected from the group consisting of methyl, alkyl, aryl, alkylaryl, alkoxyaryl, alkylcarboxyl, aryl carbonyl, haloalkyl, perfluoroalkyl, perfluoroaryl, glycols, haloaryl, an oligomer, and a polymer.

1,9,10-substituted phenothiazine derivatives with strained radical cations and use thereof

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

Matthew D Casselman