Patents by Inventor Meinan LIU

Meinan LIU 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).

  • Nitrogen-doped graphene coated nano sulfur positive electrode composite material, preparation method, and application thereof
    Patent number: 10439213
    Abstract: The invention provides a nitrogen-doped graphene coated nano sulfur positive electrode composite material, a preparation method, and an application thereof. The composite material includes: an effective three-dimensional conductive network formed by overlapping of nitrogen-doped graphenes, and nano sulfur particles coated by nitrogen doped graphene layers evenly. The preparation method includes: dispersing nitrogen-doped graphenes in a liquid-phase reaction system including at least sulfur source and acid, and depositing nano sulfur particles by an in-situ chemical reaction of the sulfur source and the acid, thereby preparing the positive electrode composite material. The positive electrode composite material of the invention has a high conductivity, a high sulfur utilization rate, and a high rate, thereby restraining the dissolution and shuttle effect in the lithium sulfur batteries, and enhancing the cyclic performance of the batteries.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: October 8, 2019
    Assignee: SUZHOU INSTITUTE OF NANO-TECH AND NANO-BIONICS, CHINESE ACADEMY OF SCIENCE
    Inventors: Yuegang Zhang, Yongcai Qiu, Wanfei Li, Guizhu Li, Yuan Hou, Meinan Liu, Lisha Zhou, Fangmin Ye, Hongfei Li
  • NITROGEN-DOPED GRAPHENE COATED NANO SULFUR POSITIVE ELECTRODE COMPOSITE MATERIAL, PREPARATION METHOD, AND APPLICATION THEREOF
    Publication number: 20170125800
    Abstract: The invention provides a nitrogen-doped graphene coated nano sulfur positive electrode composite material, a preparation method, and an application thereof. The composite material includes: an effective three-dimensional conductive network formed by overlapping of nitrogen-doped graphenes, and nano sulfur particles coated by nitrogen doped graphene layers evenly. The preparation method includes: dispersing nitrogen-doped graphenes in a liquid-phase reaction system including at least sulfur source and acid, and depositing nano sulfur particles by an in-situ chemical reaction of the sulfur source and the acid, thereby preparing the positive electrode composite material. The positive electrode composite material of the invention has a high conductivity, a high sulfur utilization rate, and a high rate, thereby restraining the dissolution and shuttle effect in the lithium sulfur batteries, and enhancing the cyclic performance of the batteries.
    Type: Application
    Filed: June 5, 2015
    Publication date: May 4, 2017
    Inventors: Yuegang ZHANG, Yongcai QIU, Wanfei LI, Guizhu LI, Yuan HOU, Meinan LIU, Lisha ZHOU, Fangmin YE, Hongfei LI