A method for liquid injection pre-sealing and a battery prepared thereby

By controlling the temperature difference between the upper and lower end caps to 35℃~45℃ in the liquid injection pre-sealing equipment, the problem of uneven temperature distribution of the end caps was solved, achieving more efficient heat radiation control and improving battery production quality.

CN122158733APending Publication Date: 2026-06-05惠州赣锋锂电科技有限公司
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
惠州赣锋锂电科技有限公司
Filing Date
2026-03-06
Publication Date
2026-06-05

Smart Images

  • Figure SMS_1
    Figure SMS_1
  • Figure SMS_2
    Figure SMS_2
Patent Text Reader

Abstract

The application belongs to the technical field of battery manufacturing, and provides a liquid injection pre-sealing method and a battery prepared by the method. The liquid injection pre-sealing method uses a liquid injection pre-sealing device with an upper head and a lower head, controls the temperature of the lower head to be less than or equal to 145 DEG C, controls the temperature of the upper head to be greater than the temperature of the lower head and the temperature difference to be 35 DEG C to 45 DEG C, and pre-seals the battery after liquid injection. The battery is pre-sealed by controlling the upper and lower heads to be specific temperatures, which can not only ensure the pre-sealing strength, but also effectively reduce the heat radiation intensity and the heat influence range, thereby improving the liquid injection pre-sealing quality and the production efficiency.
Need to check novelty before this filing date? Find Prior Art