Patents by Inventor PAUL DAVID ASIMOW

PAUL DAVID ASIMOW 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).

  • Anodes for sodium-ion batteries
    Patent number: 11223039
    Abstract: A method for forming an anode of a sodium ion battery includes a step of heat treating the red phosphorus precursor and reduced graphene oxide powder at a first temperature that vaporizes the red phosphorus precursor such that red phosphorus structures grow on the reduced graphene oxide powder. Another method for forming an anode of a sodium ion battery includes steps of placing a red phosphorus precursor and a graphene oxide precursor in a reaction chamber; establishing a reducing environment in the reaction chamber; and heating the red phosphorus precursor and a graphene oxide precursor to a first temperature that is sufficient temperature to form a composite of red phosphorus and reduced graphene oxide. Characteristically, red phosphorus deposition and graphene oxide reduction are completed simultaneously in a single-step heat treatment. A method for making a black phosphorus-composite for sodium-ion batter anodes is also provided.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: January 11, 2022
    Assignees: University of Southern California, California Institute of Technology
    Inventors: Chongwu Zhou, Xuan Cao, Qingzhou Liu, Yihang Liu, Yuqiang Ma, Chenfei Shen, Liang Chen, Anyi Zhang, Paul David Asimow
  • ANODES FOR SODIUM-ION BATTERIES
    Publication number: 20190355976
    Abstract: A method for forming an anode of a sodium ion battery includes a step of heat treating the red phosphorus precursor and reduced graphene oxide powder at a first temperature that vaporizes the red phosphorus precursor such that red phosphorus structures grow on the reduced graphene oxide powder. Another method for forming an anode of a sodium ion battery includes steps of placing a red phosphorus precursor and a graphene oxide precursor in a reaction chamber; establishing a reducing environment in the reaction chamber; and heating the red phosphorus precursor and a graphene oxide precursor to a first temperature that is sufficient temperature to form a composite of red phosphorus and reduced graphene oxide. Characteristically, red phosphorus deposition and graphene oxide reduction are completed simultaneously in a single-step heat treatment. A method for making a black phosphorus-composite for sodium-ion batter anodes is also provided.
    Type: Application
    Filed: May 21, 2019
    Publication date: November 21, 2019
    Inventors: CHONGWU ZHOU, XUAN CAO, QINGZHOU LIU, YIHANG LIU, YUQIANG MA, CHENFEI SHEN, LIANG CHEN, ANYI ZHANG, PAUL DAVID ASIMOW