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HIGH VOLTAGE REDOX SHUTTLES, METHOD FOR MAKING HIGH VOLTAGE REDOX SHUTTLES

United States Patent Application

20150221982
A1
View the Complete Application at the US Patent & Trademark Office
The invention provides a method for producing a molecule capable of undergoing reduction-oxidation when subjected to a voltage potential, the method comprising phosphorylating hydroquinone to create a first intermediate; rearranging the first intermediate to an aryl-bis- (phosphonate) thereby creating a second intermediate comprising phosphorous alkoxy groups; alkylating (e.g., methylating) the second intermediate; converting the alkoxy groups to halides; and substituting the halides to alkyl or aryl groups. Also provided is a system for preventing overcharge in a Lithium-ion battery, the method comprising a mixture of a redox shuttle with electrolyte in the battery such that the shuttle comprises between about 10 and about 20 weight percent of the mixture.
Krumdick, Gregory K. (Homer Glen, IL), Dzwiniel, Trevor L. (Carol Stream, IL), Pupek, Krzysztof (Plainfield, IL)
UCHICAGO ARGONNE, LLC (Chicago IL)
14/ 171,556
February 3, 2014
[0001] The U.S. Government has rights in this invention pursuant to Contract No. DE-AC02-06CH11357 between the U.S. Department of Energy and the University of Chicago representing Argonne National Laboratory.