Patents by Inventor Wei-Jing FENG

Wei-Jing FENG 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).

  • Method and device for preparing ultrathin metal lithium foil
    Patent number: 12195824
    Abstract: The present invention relates to a method and device for preparing an ultrathin metal lithium foil. With regard to the problems of lithium preparation processes in the prior art having a high lithium preparation reaction temperature, a low lithium recovery rate, low purity in collected lithium foils, a complicated process operation, etc., the present invention provides a method for preparing an ultrathin metal lithium foil, wherein firstly, a complex lithium salt is prepared, the complex lithium salt and a reducing agent are then subjected to a vacuum thermal reduction reaction so as to generate a metal vapor, the metal vapor is then subjected to vacuum distillation, and finally, vacuum evaporation is used to prepare the ultrathin metal lithium foil of the present invention.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: January 14, 2025
    Assignee: SHENZHEN YANYI NEW MATERIALS CO., LTD.
    Inventors: Kai Yang, Shi-Qi Zhang, Wei-Jing Feng, Xiao-Fei Zhang, Chao Qian, Min Yue, Bo Liu
  • METHOD AND DEVICE FOR PREPARING ULTRATHIN METAL LITHIUM FOIL
    Publication number: 20240011124
    Abstract: The present invention relates to a method and device for preparing an ultrathin metal lithium foil. With regard to the problems of lithium preparation processes in the prior art having a high lithium preparation reaction temperature, a low lithium recovery rate, low purity in collected lithium foils, a complicated process operation, etc., the present invention provides a method for preparing an ultrathin metal lithium foil, wherein firstly, a complex lithium salt is prepared, the complex lithium salt and a reducing agent are then subjected to a vacuum thermal reduction reaction so as to generate a metal vapor, the metal vapor is then subjected to vacuum distillation, and finally, vacuum evaporation is used to prepare the ultrathin metal lithium foil of the present invention.
    Type: Application
    Filed: November 1, 2021
    Publication date: January 11, 2024
    Applicant: SHENZHEN YANYI NEW MATERIALS CO., LTD.
    Inventors: Kai YANG, Shi-Qi ZHANG, Wei-Jing FENG, Xiao-Fei ZHANG, Chao QIAN, Min YUE, Bo LIU