Housing assembly and battery cell
By designing boss supports and limit explosion-proof valves in the housing assembly, the problems of large housing wall thickness, high cost and low energy density are solved, realizing a lightweight and high energy density cell design, and ensuring the reliability and safety of the explosion-proof valve.
CN122436657APending Publication Date: 2026-07-21SVOLT ENERGY TECHNOLOGY CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SVOLT ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2026-04-21
- Publication Date
- 2026-07-21
AI Technical Summary
Technical Problem
In existing technologies, when explosion-proof valves are installed in the housing, there are problems such as large housing wall thickness, high cost, and low energy density.
Method used
Design a housing assembly that uses bosses to support and limit the explosion-proof valve. The wall thickness of each side of the housing remains the same. The explosion-proof valve is connected by the bosses and the connecting ring to form a buffer energy-absorbing structure, which increases the contact area and connection reliability.
Benefits of technology
Reduce housing weight, lower production costs, increase energy density, optimize the breathing fatigue performance and reliability of explosion-proof valves, and prevent electrolyte leakage and the ingress of external impurities.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122436657A_ABST
Abstract
The present application relates to the technical field of battery cell, and discloses a shell assembly and a battery cell, which comprise a shell provided with a containing cavity, wherein the shell has a side wall in the Z direction, the side wall protrudes into the containing cavity to form a boss, the side wall forms a groove on the side of the boss away from the containing cavity, a mounting hole is formed on the boss, and the mounting hole penetrates through the boss in the Z direction; an explosion-proof valve comprises an explosion-proof part and a connecting ring part, the explosion-proof part has a first section and a second section, the first section and the second section are arranged in the Z direction, the first section is located in the groove, the second section is inserted into the mounting hole, the connecting ring part is connected with the first section and connected with the side of the boss away from the containing cavity, and the explosion-proof part covers the mounting hole. The shell assembly in the embodiment of the present application can not only install the explosion-proof valve by using the shell, but also has a small wall thickness of the shell, so that the cost can be reduced and the energy density can be improved.
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