公开(公告)号：US20230117186A1

公开(公告)日：2023-04-20

申请号：US17939983

申请日：2022-09-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Dongyang SHI ,  Ning CHEN ,  Shuangshuang LIU ,  Sitong LIU

IPC: H01M4/48 ,  H01M4/04 ,  H01M4/583 ,  H01M10/0525

Abstract: Provided in the present application is a negative electrode plate comprising a current collector and a coating applied to at least one surface of the current collector, the coating comprising a negative electrode active material and a metal powder, wherein the electrode potential of the metal powder in the coating relative to lithium may be between 1.6 and 3.5 V, the negative electrode active material may be a silicon-based material, and relative to the total weight of the silicon-based material and the metal powder, the proportion by weight of the metal powder may be 5 to 20% and the proportion by weight of the silicon-based material may be 80 to 95%.

公开(公告)号：US20230246157A1

公开(公告)日：2023-08-03

申请号：US18296794

申请日：2023-04-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhi LIU ,  Hailin FAN ,  Sitong LIU ,  Dongyang SHI

IPC: H01M4/04 ,  H01M4/525 ,  H01M4/505 ,  H01M4/58 ,  H01M10/0525

CPC classification number: H01M4/0404 ,  H01M4/525 ,  H01M4/505 ,  H01M4/5825 ,  H01M10/0525 ,  H01M2004/027

Abstract: The present disclosure provides an anode plate of a lithium-ion battery and application thereof. The anode plate comprises a current collector, an anode active material layer, and a specially designed lithium-precipitation inhibiting layer. The anode plate of the present disclosure can effectively avoid the lithium precipitation on a surface of the anode plate in an economical and simple way, and meanwhile effectively reduce a capacity ratio of an anode to a cathode, and improve the initial coulombic efficiency, cycle life, energy density, and safety of the lithium-ion battery.

公开(公告)号：US20220221519A1

公开(公告)日：2022-07-14

申请号：US17705524

申请日：2022-03-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Dongyang SHI ,  Sitong LIU ,  Haizu JIN ,  Baiqing LI

IPC: G01R31/36 ,  G01R31/392 ,  H01M10/44 ,  G01R31/378

Abstract: Provided are a battery charging method and device, and a storage medium that are applicable to a lithium-ion battery with an N/P range of 0.5 to 1.1. The method includes: obtaining, by a power management system, a state of health (SOH) loss of the lithium-ion battery; and determining a charge cut-off voltage of a next charge process based on the SOH loss, an initial charge cut-off voltage of the lithium-ion battery, and a voltage correction factor, where the initial charge cut-off voltage is determined based on the N/P, and the charge cut-off voltage increases with increase of a count of charging. The N/P range is 0.5 to 1.1, thereby reducing the dosage of the negative electrode and reducing cost. In addition, the charge cut-off voltage of the next charge process is increased based on the SOH loss, thereby ensuring that the lithium-ion battery is free from lithium plating.

公开(公告)号：US20230034272A1

公开(公告)日：2023-02-02

申请号：US17831362

申请日：2022-06-02

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Sitong LIU ,  Dongyang SHI ,  Shichao LI ,  Baiqing LI

IPC: H02J7/00

Abstract: This application provides a charging method and apparatus, a vehicle, and a computer-readable storage medium. The method includes: obtaining a current voltage of a target battery; determining a current power of the target battery based on the current voltage; determining a chargeable power of the target battery based on the current power; and obtaining a real-time voltage of the target battery where the target battery is charged with the chargeable power, where the real-time voltage is used for determining a charge cut-off voltage of the target battery in a next charging.