Flexible package super capacitor structure

By using two identical aluminum-plastic composite films in the soft-package supercapacitor stack package, the bottom seal and side seal are not cross-connected, which solves the problems of cracking and wear and corrosion at the bottom corner of the battery cell and achieves higher packaging reliability and safety.

CN223378031UActive Publication Date: 2025-09-23XIAN UNIV OF SCI & TECH
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Patent Information

Application Number
CN202422549681.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-22
Publication Date
2025-09-23
Estimated Expiration
2034-10-22

AI Technical Summary

Technical Problem

During the manufacturing process of traditional soft-package supercapacitors, the aluminum-plastic composite film near the bottom corners of the battery cell is easily broken due to repeated deformation, posing leakage and safety hazards, and the protrusions at the bottom corners are prone to wear or corrosion.

Method used

The battery cell is encapsulated by stacking two pieces of aluminum-plastic composite film of the same size. The bottom seal and the side seals are not cross-connected and only undergo one folding operation to avoid cracking and wear of the bottom corners. The bottom seal area is used to protect the bottom of the battery cell.

Benefits of technology

The packaging reliability and production yield of soft-package supercapacitors are improved, the service life is extended, and the safety performance is enhanced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a flexible package super capacitor structure, which comprises a battery cell and aluminum plastic composite films, the battery cell is clamped between two aluminum plastic composite films with the same size, and the sizes of the aluminum plastic composite films respectively exceed the battery cell in the upper, lower, left and right directions. A top sealing area, a bottom sealing area, a left side sealing area and a right side sealing area are respectively formed on the parts exceeding in the four directions, the top sealing area, the bottom sealing area, the left side sealing area and the right side sealing area are used for sealing a battery cell, and the bottom sealing area is not connected with the left side sealing area and the right side sealing area in a crossed manner. According to the utility model, the reliability of device packaging is well guaranteed, the service life of the flexible package super capacitor is prolonged, and the safety performance is improved.
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