Cover assembly and battery
By forming a groove on the side wall of the cover plate as a gas emission channel, and combining interference fit and insulation layer design, the problem of welding explosion points during the welding process between the cover plate and the shell is solved, thereby improving the stability and safety of the battery.
CN224481043UActive Publication Date: 2026-07-10SVOLT ENERGY TECHNOLOGY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SVOLT ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-07-10
AI Technical Summary
Technical Problem
In existing technologies, welding spatters are easily generated during the laser welding process between the cover plate and the shell, affecting the stability of the connection.
Method used
A groove is formed on the side wall of the cover plate body to serve as a gas emission channel. Combined with the interference fit between the cover plate and the shell and the insulation layer design, it ensures that the gas can be discharged in time, prevents the formation of welding explosions, and improves the structural stability and sealing of the battery.
Benefits of technology
It effectively prevents welding explosions, improves welding quality, maintains stable internal battery pressure, extends battery life, and enhances battery safety and reliability.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224481043U_ABST
Abstract
This utility model relates to the field of batteries, providing a cover plate assembly and a battery. The cover plate assembly includes a cover plate body, with a groove formed on the side wall of the cover plate body facing the housing, the groove being recessed towards the cover plate body. The groove in this cover plate assembly provides a discharge channel for gases generated during laser welding or use of the battery. When gas is generated inside the battery, it can be discharged through the groove, preventing gas accumulation inside the battery; preventing welding explosions caused by gas accumulation, improving welding quality and battery production yield. During normal battery use, it can also promptly discharge any small amounts of gas that may be generated, maintaining stable internal battery pressure and ensuring battery safety. The recessed groove towards the cover plate body ensures gas discharge while reducing the impact on the structural strength of the cover plate body.
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