Patents by Inventor Pingao WANG

Pingao WANG 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).

  • LITHIUM PRIMARY BUTTON CELL, PREPARATION METHOD THEREOF, AND ELECTRONIC DEVICE
    Publication number: 20260038801
    Abstract: Provided are a lithium primary button cell, a preparation method thereof, and an electronic device. The lithium primary button cell includes a cell housing (10) and a cell core assembly located within the cell housing (10). The cell core assembly includes a negative electrode (3), a negative electrode modification film (4), separators (5, 6), and a positive electrode (7) that are stacked sequentially. The surface of one side of the negative electrode (3) facing the negative electrode modification film (4) is formed with a concave groove (9) into which the negative electrode modification film (4) is tightly embedded. In the present application, the structure and materials of the lithium primary button cell are optimized so that the lithium primary button cell can have excellent discharging performance and good stability and reliability.
    Type: Application
    Filed: January 3, 2025
    Publication date: February 5, 2026
    Inventors: Huihui DENG, Dandan HAN, Peiling SUN, Pingao WANG, Lixing ZHANG, Yaning TAN, Lang CAO, Yuan ZHU
  • Extrusion head for molding pole piece and molding device comprising same, and molding method and preparation method therefor
    Patent number: 12412883
    Abstract: An extrusion head (1) for molding a pole piece and a molding device comprising same, and a molding method and a preparation method therefor. The extrusion head (1) comprises an extrusion head (1) housing, and a through extrusion channel (6) is provided inside the extrusion head (1) housing in an extrusion direction; and the extrusion channel (6) is divided into a transition cavity (61) and a molding cavity (62) that are in sequential butt joint and communication in the extrusion direction, and the diameter of the annular surface of the inner wall of the transition cavity (61) is gradually reduced in the extrusion direction.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: September 9, 2025
    Assignee: EVE ENERGY CO., LTD.
    Inventors: Huihui Deng, Lang Cao, Peiling Sun, Pingao Wang, Jun Zhang, Yuan Zhu, Jianhua Liu, Jincheng Liu
  • EXTRUSION HEAD FOR MOLDING POLE PIECE AND MOLDING DEVICE COMPRISING SAME, AND MOLDING METHOD AND PREPARATION METHOD THEREFOR
    Publication number: 20230268479
    Abstract: An extrusion head (1) for molding a pole piece and a molding device comprising same, and a molding method and a preparation method therefor. The extrusion head (1) comprises an extrusion head (1) housing, and a through extrusion channel (6) is provided inside the extrusion head (1) housing in an extrusion direction; and the extrusion channel (6) is divided into a transition cavity (61) and a molding cavity (62) that are in sequential butt joint and communication in the extrusion direction, and the diameter of the annular surface of the inner wall of the transition cavity (61) is gradually reduced in the extrusion direction.
    Type: Application
    Filed: October 16, 2020
    Publication date: August 24, 2023
    Inventors: Huihui DENG, Lang CAO, Peiling SUN, Pingao WANG, Jun ZHANG, Yuan ZHU, Jianhua LIU, Jincheng LIU