Battery

By using steel with a hardness of 100HV-500HV in the battery housing structure and pasting an insulating film on the outer surface of the battery housing structure away from the battery cell, the problem of degradation of insulation performance caused by expansion of the battery cell is solved, and the safe use of the battery is achieved Performance improvement.

CN222463365UActive Publication Date: 2025-02-11CHINA INNOVATION AVIATION MATERIALS TECH (SICHUAN) CO LTD +1
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Patent Information

Application Number
CN202421057652.4
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

The existing battery housing structure is prone to deform during the expansion of the battery cell, affecting the insulation performance, and thus affecting the safe use performance of the battery.

Method used

A battery housing structure including steel is adopted, with a hardness of 100HV-500HV, and an insulating film is attached to the outer surface of the battery housing structure facing away from the battery cell to ensure the firmness of the bonding between the insulating film and the battery housing structure.

Benefits of technology

By improving the hardness of the battery case structure and the firmness of the bonding of the insulating film, the risk of insulating film rupture caused by cell expansion is reduced, and the insulation performance of the battery case structure is ensured, thereby improving the safe use performance of the battery.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of batteries, and provides a battery, which comprises a battery shell structure, a battery shell structure and a battery shell structure, the battery shell structure comprises steel, and the hardness of the battery shell structure is 100HV-500HV; the battery cell is accommodated in the battery shell structure; the insulating film is adhered to the outer surface, deviating from the battery cell, of the battery shell structure, and the roughness Ra of the outer surface, deviating from the battery cell, of the battery shell structure is 0.02-5 microns, so that the risk of breakage of the insulating film caused by expansion of the battery cell can be reduced, and the adhesion firmness between the insulating film and the battery shell structure can be ensured; therefore, the insulation performance of the battery shell structure is ensured, and the safe use performance of the battery is effectively improved.
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