Battery cover plate assembly and battery

By designing insulating components and hot-melt connections in the battery cover assembly, the problem of isolation between the tabs and the terminals is solved, ensuring stable isolation at the welded joints, reducing the risk of battery short circuits, and improving the safety and reliability of the battery.

CN224554470UActive Publication Date: 2026-07-24SVOLT ENERGY TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SVOLT ENERGY TECHNOLOGY CO LTD
Filing Date
2025-08-22
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In the existing technology, the welding quality of the electrode tab and the terminal post is unstable, which can easily lead to the diaphragm being punctured or the welding slag falling off, causing battery short circuits and thermal runaway, posing a safety hazard.

Method used

Design a battery cover assembly, including a cover body and an insulating component. The insulating component consists of a cover gasket and a protective gasket. The protective gasket and the cover gasket are fixed together by a hot-melt connection to form a stable isolation, preventing welding slag from entering the electrode assembly. A slag receiving groove and a protrusion are provided in the electrode protection section to hold the electrode tabs and ensure the insulation isolation of the welding parts.

Benefits of technology

This achieves reliable isolation between the tab and the terminal post welding area, preventing welding slag from entering the electrode assembly, reducing the risk of battery short circuit, and improving battery safety and reliability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224554470U_ABST
    Figure CN224554470U_ABST
Patent Text Reader

Abstract

The utility model relates to new energy battery technical field, concretely provides a battery cover plate assembly and battery, the battery cover plate assembly of the utility model includes the cover plate body, and is located at the insulating piece of the cover plate body one side to pole group, wherein, the insulating piece includes the cover plate gasket and the protective pad of integrative connection, the cover plate gasket is attached to the cover plate body, the protective pad is reversibly connected in the one side of cover plate gasket width direction, and has the buckling state of buckling in the side of cover plate gasket opposite to the cover plate body, the hot melt connecting portion is equipped on the protective pad, and the hot melt portion is correspondingly provided on the cover plate gasket, under the buckling state, the hot melt connecting portion can hot melt solid connection on the hot melt portion, and make the protective pad form the isolation between the welding part of pole post and pole group, the battery cover plate assembly of the utility model guarantees the buckling connection reliability of protective pad on the cover plate gasket, thereby can form the firm and reliable isolation protection to the welding part of the pole lug and pole post of battery.
Need to check novelty before this filing date? Find Prior Art