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Sulfur containing nanoporous materials, nanoparticles, methods and applications

United States Patent

9,882,199
January 30, 2018
View the Complete Patent at the US Patent & Trademark Office
Sulfur containing nanoparticles that may be used within cathode electrodes within lithium ion batteries include in a first instance porous carbon shape materials (i.e., either nanoparticle shapes or "bulk" shapes that are subsequently ground to nanoparticle shapes) that are infused with a sulfur material. A synthetic route to these carbon and sulfur containing nanoparticles may use a template nanoparticle to form a hollow carbon shape shell, and subsequent dissolution of the template nanoparticle prior to infusion of the hollow carbon shape shell with a sulfur material. Sulfur infusion into other porous carbon shapes that are not hollow is also contemplated. A second type of sulfur containing nanoparticle includes a metal oxide material core upon which is located a shell layer that includes a vulcanized polymultiene polymer material and ion conducting polymer material. The foregoing sulfur containing nanoparticle materials provide the electrodes and lithium ion batteries with enhanced performance.
Archer; Lynden A. (Ithaca, NY), Navaneedhakrishnan; Jayaprakash (Lexington, KY)
Cornell University (Ithaca, NY)
13/ 884,314
November 8, 2011
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH This invention was made with government support under contract no. DE-SC0001086awarded by the Department of Energy. The government has certain rights in the invention.