Patents by Inventor Jingyu LEI

Jingyu LEI 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).

  • SULFUR-CONTAINING POSITIVE ELECTRODE MATERIAL FOR SECONDARY BATTERY, PREPARATION METHOD THEREOF, AND SECONDARY BATTERY
    Publication number: 20240178393
    Abstract: The present invention relates to a sulfur-containing positive electrode material for a secondary battery, a preparation method thereof, and a secondary battery. The sulfur-containing positive electrode material is obtained by uniformly mixing microporous polyacrylonitrile (with a pore diameter of 0.2-2 nm) as a precursor with elemental sulfur and then performing heating treatment. The microporous polyacrylonitrile is obtained through free radical polymerization of an acrylonitrile monomer and a crosslinking agent.
    Type: Application
    Filed: March 2, 2022
    Publication date: May 30, 2024
    Applicant: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Jiulin WANG, Jingyu LEI, Jun YANG
  • HIGH-CONDUCTIVITY SULFUR-BASED POSITIVE ELECTRODE MATERIAL FOR SECONDARY BATTERY AND SECONDARY BATTERY
    Publication number: 20240170668
    Abstract: A high-conductivity sulfur-based positive electrode material for a secondary battery and a secondary battery are provided. The sulfur-based positive electrode material is formed by evenly mixing highly isotactic polyacrylonitrile as a precursor with elemental sulfur and then heating to undergo a chemical reaction. The highly isotactic polyacrylonitrile is synthesized from an acrylonitrile monomer by means of a free radical polymerization or inclusion polymerization reaction under the action of a template agent.
    Type: Application
    Filed: March 2, 2022
    Publication date: May 23, 2024
    Applicant: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Jiulin WANG, Jingyu LEI, Huichao LU, Jun YANG