Patents by Inventor Mingwei YAN

Mingwei YAN 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).

  • Direct current resistance detection method for batteries, system, device, and storage medium
    Patent number: 12742829
    Abstract: Provided are a direct current resistance (DCR) detection method for batteries, a system, a device, and a storage medium. Multiple discharging current pulses are applied during the constant current charging process of a battery to form a negative pulse charging mode. The discharging current can be added during the charging process to quickly remove the polarization effect of a battery cell generated during the charging process, thereby improving the charging acceptance capacity of the battery cell, shortening the charging time and increasing the charging efficiency. At the same time, a first battery voltage is obtained during the discharging current pulse time period, and a second battery voltage is obtained during the constant current charging time period after the discharging current pulse, thereby obtaining a DCR value of the battery during actual charging and use. The DCR of the battery cell can be detected simultaneously in the negative pulse charging mode.
    Type: Grant
    Filed: July 5, 2024
    Date of Patent: September 22, 2026
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
    Inventors: Ming Ni, Haili Li, Mingwei Yan
  • DIRECT CURRENT RESISTANCE DETECTION METHOD FOR BATTERIES, SYSTEM, DEVICE, AND STORAGE MEDIUM
    Publication number: 20240361396
    Abstract: Provided are a direct current resistance (DCR) detection method for batteries, a system, a device, and a storage medium. Multiple discharging current pulses are applied during the constant current charging process of a battery to form a negative pulse charging mode. The discharging current can be added during the charging process to quickly remove the polarization effect of a battery cell generated during the charging process, thereby improving the charging acceptance capacity of the battery cell, shortening the charging time and increasing the charging efficiency. At the same time, a first battery voltage is obtained during the discharging current pulse time period, and a second battery voltage is obtained during the constant current charging time period after the discharging current pulse, thereby obtaining a DCR value of the battery during actual charging and use. The DCR of the battery cell can be detected simultaneously in the negative pulse charging mode.
    Type: Application
    Filed: July 5, 2024
    Publication date: October 31, 2024
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Ming NI, Haili LI, Mingwei YAN