Patents by Inventor Xiaofu XU

Xiaofu XU 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).

  • Publication number: 20230048691
    Abstract: The present application relates to a battery module, which includes a first type of battery cells and a second type of battery cells electrically connected in series. The first type of battery cells and the second type of battery cells are battery cells with different chemical systems. The first type of battery cells includes N first battery cells, and the second type of battery cells includes M second battery cells, where N and M are greater than or equal one. The present application also relates to a battery pack and an electric apparatus including the battery module, and method and device for manufacturing the battery module.
    Type: Application
    Filed: October 11, 2022
    Publication date: February 16, 2023
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Xiaofu XU, Xia HU, Yonghuang YE, Guangyu XU, Haizu JIN, Chengdu LIANG, Quanguo LI
  • Publication number: 20220416330
    Abstract: The application relates to a battery module, a manufacturing method and a manufacturing device thereof, a battery pack and a power consumption apparatus. The battery module includes a first-type battery cell and a second-type battery cell having different chemical systems and being electrically connected at least in series, where under the conditions of 25° C. and 100% state of charge (SOC), specific power density P2 of the second-type battery cell is higher than specific power density P1 of the first-type battery cell. Satisfying: 0.04?(r1/m)/(r2/n)?14, where, r1 and r2 are resistances per unit area of a positive electrode plate of the first-type battery cell and a positive electrode plate of the second-type battery cell respectively, and m and n are numbers of laminations of the positive electrode plate of the first-type battery cell and the positive electrode plate of the second-type battery cell.
    Type: Application
    Filed: August 22, 2022
    Publication date: December 29, 2022
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Quanguo LI, Yonghuang YE, Chengdu LIANG, Haizu JIN, Qian LIU, Xiaofu Xu
  • Publication number: 20220393291
    Abstract: The present application relates to a battery module, including a first-type battery cell and a second-type battery cell electrically connected at least in series, the first-type battery cell and the second-type battery cell are battery cells of different chemical systems, the first-type battery cell includes N first battery cell(s), the second-type battery cell includes M second battery cell(s); the first battery cell includes a first negative electrode plate, the second battery cell includes a second negative electrode plate, a ratio of a conductivity of an electrolyte solution (25° C.) of the first battery cell to a coating mass per unit area of the first negative electrode plate is denoted as Ml, and a ratio of a conductivity of an electrolyte solution (25° C.) of the second battery cell to a coating mass per unit area of the second negative electrode plate is denoted as M2, M1>M2, and 0.08?M1?11, 0.03?M2?4.62.
    Type: Application
    Filed: August 15, 2022
    Publication date: December 8, 2022
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Xiaofu XU, Yonghuang YE, Qian LIU, Haizu JIN, Chengdu LIANG
  • Publication number: 20220393292
    Abstract: The present application relates to a battery module, comprising a first type of battery cells and a second type of battery cells electrically connected at least in series, wherein the first and second type of battery cells are battery cells of different chemical systems, the first type of battery cells comprises N first battery cells, the second type of battery cells comprises M second battery cells, and N and M are positive integers; a positive electrode plate of the second battery cell contains two or more positive electrode active materials, and when a dynamic SOC of the second battery cell is in a range from 90% to 98%, a change rate ?OCV/?SOC in an OCV relative to the SOC of the second battery cell satisfies 3??OCV/?SOC?9, in mV/% SOC, where SOC represents a charge state and OCV represents an open circuit voltage.
    Type: Application
    Filed: August 17, 2022
    Publication date: December 8, 2022
    Applicant: Contemporary Amperex Technology Co., Limited
    Inventors: Qian LIU, Chengdu Liang, Xiaofu Xu, Quanguo Li, Yonghuang Ye, Haizu Jin
  • Publication number: 20220359874
    Abstract: This application provides a mixed positive electrode material, a positive electrode plate and a preparation method thereof, a battery, and an apparatus. The mixed positive electrode material includes a mixed component consisting of a material of lithium iron phosphate chemical system and a material of ternary chemical system, where the material of lithium iron phosphate chemical system is secondary particles with an average specific surface area within 10 m2/g. In the mixed positive electrode material of this application, the introduction of lithium iron phosphate secondary particles having a low specific surface area improves ease of processing of the mixed positive electrode material, making a slurry less prone to agglomeration and the two materials highly miscible. When the positive electrode plate is prepared by using the mixed positive electrode material of this application, uniform distribution of the positive electrode material on the positive electrode plate can be effectively improved.
    Type: Application
    Filed: July 12, 2022
    Publication date: November 10, 2022
    Inventors: Changfeng BIE, Xia HU, Qian LIU, Na LIU, Xiaofu XU, Huan NI