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Redox-Active Supramolecular Polymer Binders Derived from Perylene Bisimide Nanowires Enable High-Rate Lithium-Sulfur Batteries

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
To address the need for multi-functional binders specifically tailored for sulfur cathodes .pi.-stacked perylene bisimide (PBI) molecules are repurposed as redox-active supramolecular binders in sulfur cathodes for Li--S cells. In operando lithiation of PBI binders permanently reduces Li--S cell impedance enabling high-rate cycling, a critical step toward unlocking the full potential of Li--S batteries.
Helms, Brett A. (San Francisco, CA), Frischmann, Peter D. (Berkeley, CA), Hwa, Yoon (Emeryville, CA), Cairns, Elton J. (Walnut Creek, CA)
The Regents of the University of California (Oakland CA)
15/ 467,099
March 23, 2017
STATEMENT OF GOVERNMENTAL SUPPORT [0002] The invention described and claimed herein was made in part utilizing funds supplied by the U.S. Department of Energy under Contract No. DE-AC02-05CH11231 between the U.S. Department of Energy and the Regents of the University of California for the management and operation of the Lawrence Berkeley National Laboratory. The government has certain rights in this invention.