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Nitrogen--sulfur--carbon nanocomposites and their application as cathode materials in lithium--sulfur batteries

United States Patent

September 27, 2016
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
The invention is directed in a first aspect to electron-conducting porous compositions comprising an organic polymer matrix doped with nitrogen atoms and having elemental sulfur dispersed therein, particularly such compositions having an ordered framework structure. The invention is also directed to composites of such S/N-doped electron-conducting porous aromatic framework (PAF) compositions, or composites of an S/N-doped mesoporous carbon composition, which includes the S/N-doped composition in admixture with a binder, and optionally, conductive carbon. The invention is further directed to cathodes for a lithium-sulfur battery in which such composites are incorporated.
Dai; Sheng (Knoxville, TN), Sun; Xiao-Guang (Knoxville, TN), Guo; Bingkun (Knoxville, TN), Wang; Xiqing (Mason, OH), Mayes; Richard T. (Knoxville, TN), Ben; Teng (Changchun, CN), Qiu; Shilun (Changchun, CN)
13/ 683,520
November 21, 2012
This invention was made with government support under Prime Contract No. DE-AC05-00OR22725 awarded by the U.S. Department of Energy. The government has certain rights in the invention.