Patents by Inventor Erling LI

Erling LI 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).

  • Negative-electrode active material and preparation method thereof, secondary battery, and battery module, battery pack, and apparatus containing such secondary battery
    Patent number: 12218354
    Abstract: This application discloses a negative-electrode active material and a preparation method thereof, a secondary battery, and a battery module, a battery pack, and an apparatus that include such secondary battery. The negative-electrode active material includes a core and a coating layer covering at least part of a surface of the core, where the core includes artificial graphite, the coating layer includes amorphous carbon, a volume-based particle size distribution of the negative-electrode active material satisfies Dv99?24 ?m, a volume-based median particle size Dv50 of the negative-electrode active material satisfies 8 ?m?Dv?15 ?m, Dv99 is a particle size corresponding to a cumulative volume distribution percentage of the negative-electrode active material reaching 99%, and WO is a particle size corresponding to a cumulative volume distribution percentage of the negative-electrode active material reaching 50%.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: February 4, 2025
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
    Inventors: Yuqun Zeng, Baida Deng, Meng Kang, Erling Li, Libing He
  • NEGATIVE-ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREOF, SECONDARY BATTERY, AND BATTERY MODULE, BATTERY PACK, AND APPARATUS CONTAINING SUCH SECONDARY BATTERY
    Publication number: 20230369591
    Abstract: This application discloses a negative-electrode active material and a preparation method thereof, a secondary battery, and a battery module, a battery pack, and an apparatus that include such secondary battery. The negative-electrode active material includes a core and a coating layer covering at least part of a surface of the core, where the core includes artificial graphite, the coating layer includes amorphous carbon, a volume-based particle size distribution of the negative-electrode active material satisfies Dv99?24 ?m, a volume-based median particle size Dv50 of the negative-electrode active material satisfies 8 ?m?Dv50?15 ?m, Dv99 is a particle size corresponding to a cumulative volume distribution percentage of the negative-electrode active material reaching 99%, and Dv50 is a particle size corresponding to a cumulative volume distribution percentage of the negative-electrode active material reaching 50%.
    Type: Application
    Filed: July 10, 2023
    Publication date: November 16, 2023
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Yuqun ZENG, Baida DENG, Meng KANG, Erling LI, Libing HE
  • SECONDARY BATTERY, PREPARATION METHOD THEREOF, AND BATTERY MODULE, BATTERY PACK, AND APPARATUS CONTAINING SUCH SECONDARY BATTERY
    Publication number: 20230117662
    Abstract: A secondary battery, a preparation method thereof, and a battery module, a battery pack, and an apparatus containing such secondary battery are provided. In some embodiments, the secondary battery includes a negative-electrode plate, where the negative-electrode plate includes a negative-electrode current collector and a negative-electrode film layer, the negative-electrode film layer includes a first negative-electrode film layer and a second negative-electrode film layer, and the second negative-electrode film layer is located between the negative-electrode current collector and the first negative-electrode film layer; and the first negative-electrode film layer includes a first negative-electrode active material, the first negative-electrode active material includes a first graphite, the first graphite is artificial graphite, and a distribution of volume-based particle size Dv99 of the first negative-electrode active material is ?23 ?m.
    Type: Application
    Filed: November 29, 2022
    Publication date: April 20, 2023
    Inventors: Erling Li, Meng Kang, Baida Deng, Libing He
  • Secondary battery, preparation method thereof, and battery module, battery pack, and apparatus associated therewith
    Patent number: 11631852
    Abstract: A secondary battery, a preparation method thereof, and an apparatus including the secondary battery are described.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: April 18, 2023
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Erling Li, Meng Kang, Baida Deng, Libing He
  • NEGATIVE-ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREOF, SECONDARY BATTERY, AND BATTERY MODULE, BATTERY PACK, AND APPARATUS CONTAINING SUCH SECONDARY BATTERY
    Publication number: 20220416244
    Abstract: This application discloses a negative-electrode active material and a preparation method thereof, a secondary battery, and a battery module, a battery pack, and an apparatus that include such secondary battery. The negative-electrode active material includes a core and a coating layer covering at least part of a surface of the core, where the core includes artificial graphite, the coating layer includes amorphous carbon, a volume-based particle size distribution of the negative-electrode active material satisfies Dv99?24 ?m, a volume-based median particle size Dv50 of the negative-electrode active material satisfies 8 ?m?Dv?15 ?m, Dv99 is a particle size corresponding to a cumulative volume distribution percentage of the negative-electrode active material reaching 99%, and WO is a particle size corresponding to a cumulative volume distribution percentage of the negative-electrode active material reaching 50%.
    Type: Application
    Filed: August 25, 2022
    Publication date: December 29, 2022
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Yuqun ZENG, Baida DENG, Meng KANG, Erling LI, Libing HE
  • SECONDARY BATTERY, PREPARATION METHOD THEREOF, AND BATTERY MODULE, BATTERY PACK, AND APPARATUS ASSOCIATED THEREWITH
    Publication number: 20220328831
    Abstract: A secondary battery, a preparation method thereof, and an apparatus including the secondary battery are described.
    Type: Application
    Filed: June 29, 2022
    Publication date: October 13, 2022
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Erling LI, Meng KANG, Baida DENG, Libing HE