Patents by Inventor Rhet C. de Guzman

Rhet C. de Guzman 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).

  • Composite anode for lithium ion batteries
    Patent number: 9911974
    Abstract: A composite anode for a lithium-ion battery is manufactured from silicon nanoparticles having diameters mostly under 10 nm; providing an oxide layer on the silicon nanoparticles; dispersing the silicon nanoparticles in a polar liquid; providing a graphene oxide suspension; mixing the polar liquid containing the dispersed silicone nanoparticles with the graphene oxide suspension to obtain a composite mixture; probe-sonicating the mixture for a predetermined time; filtering the composite mixture to obtain a solid composite; drying the composite; and reducing the composite to obtain graphene and silicon.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: March 6, 2018
    Assignee: Wayne State University
    Inventors: Rhet C. de Guzman, K. Y. Simon Ng, Steven O. Salley
  • COMPOSITE ANODE FOR LITHIUM ION BATTERIES
    Publication number: 20140329150
    Abstract: A composite anode for a lithium-ion battery is manufactured from silicon nanoparticles having diameters mostly under 10 nm; providing an oxide layer on the silicon nanoparticles; dispersing the silicon nanoparticles in a polar liquid; providing a graphene oxide suspension; mixing the polar liquid containing the dispersed silicone nanoparticles with the graphene oxide suspension to obtain a composite mixture; probe-sonicating the mixture for a predetermined time; filtering the composite mixture to obtain a solid composite; drying the composite; and reducing the composite to obtain graphene and silicon.
    Type: Application
    Filed: October 12, 2012
    Publication date: November 6, 2014
    Inventors: Rhet C. de Guzman, K.Y. Simon Ng, Steven O. Salley