Quadrangular prism type battery
By setting a liquid injection hole with a maximum diameter of ≤12mm on the battery case structure of the quadrilateral type battery, the problem of corrosion and fracture of the battery case structure during the electrolyte injection process is solved, and the effect of improving the battery safety performance is achieved.
CN222463112UActive Publication Date: 2025-02-11CHINA INNOVATION AVIATION MATERIALS TECH (SICHUAN) CO LTD +1
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Patent Information
- Application Number
- CN202421057524.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-15
AI Technical Summary
Technical Problem
During the electrolyte injection process of quadrilateral prism batteries, the battery shell structure is susceptible to chemical corrosion, resulting in weakening of structural strength and increasing risk of fracture.
Method used
By setting up a liquid injection hole on the battery case structure, its maximum diameter is limited to ≤12mm, so as to reduce the corrosion area and stress concentration during electrolyte injection, thereby improving the safety performance of the battery.
Benefits of technology
It effectively reduces the corrosion area and fracture risk of the battery case structure and improves the safe use performance of quadrilateral batteries.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN222463112U_ABST
Abstract
The utility model relates to the technical field of batteries, and provides a quadrangular prism type battery which comprises a battery cell, the battery terminal structure is electrically connected with the battery cell; the battery cell is arranged in the battery shell structure, the battery terminal structure is arranged on the battery shell structure, the battery shell structure is a steel shell, a liquid injection hole is formed in the battery shell structure, and the maximum diameter a of the liquid injection hole is less than or equal to 12mm, so that the corrosion area of the battery shell structure can be reduced when electrolyte is injected through the liquid injection hole; and the risk of breakage of the battery shell structure due to stress concentration of the battery shell structure is avoided, so that the safe use performance of the quadrangular-prism-shaped battery can be improved.
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