Patents by Inventor Lihn Tung Le

Lihn Tung Le has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Granules of graphene oxide by spray drying
    Patent number: 9399580
    Abstract: Granules of graphene oxide may be produced from a dispersion of nanoscale graphene oxide sheets by a spray drying method. Such granules have a three-dimensional corrugated morphology. The complexity of the corrugations, and the size distribution of the granules can be varied through selection of the spray-drying equipment used, and variation of the composition of the dispersion and the spray-drying parameters. Structural modifiers may be included in the graphene oxide dispersion to control the ultimate morphology of the granules. The granules of graphene oxide may be thermally reduced at a moderate temperature of 220° C. to increase the granules' electrical conductivity. The reduced granules may be used to fabricate electrodes for supercapacitors. The power and energy density of such an electrode material is comparable to those of conventional/commercial activated carbon-based electrodes.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: July 26, 2016
    Assignee: The Trustees of the Stevens Institute of Technology
    Inventors: Hongwei Qiu, Thomas A. Bechtold, Lihn Tung Le, Woo Young Lee
  • GRANULES OF GRAPHENE OXIDE BY SPRAY DRYING
    Publication number: 20140205841
    Abstract: Granules of graphene oxide may be produced from a dispersion of nanoscale graphene oxide sheets by a spray drying method. Such granules have a three-dimensional corrugated morphology. The complexity of the corrugations, and the size distribution of the granules can be varied through selection of the spray-drying equipment used, and variation of the composition of the dispersion and the spray-drying parameters. Structural modifiers may be included in the graphene oxide dispersion to control the ultimate morphology of the granules. The granules of graphene oxide may be thermally reduced at a moderate temperature of 220° C. to increase the granules' electrical conductivity. The reduced granules may be used to fabricate electrodes for supercapacitors. The power and energy density of such an electrode material is comparable to those of conventional/commercial activated carbon-based electrodes.
    Type: Application
    Filed: January 15, 2014
    Publication date: July 24, 2014
    Inventors: Hongwei Qiu, Thomas A. Bechtold, Lihn Tung Le, Woo Young Lee