Porous graphene film drying and forming device for super capacitor

By combining airflow circulation and vacuum pump systems with water circulation heating and quicklime adsorption, the problem of uneven temperature during the graphene film drying process was solved, achieving uniform drying of the graphene film and improving capacitor performance.

CN122000210APending Publication Date: 2026-05-08ANHUI GLANCO NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202410150794.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-02-02
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

In existing technologies, due to the low thermal conductivity of air, the temperature of graphene films used in supercapacitors is uneven during the drying process, resulting in temperature gradients. This causes internal stress in the graphene film, leading to bending and cracking, which affects the performance of the capacitor.

Method used

By employing an airflow circulation component and a vacuum pump system, the internal air pressure of the chamber is maintained through airflow circulation and vacuum pump extraction. Combined with water circulation heating and quicklime adsorption, uniform drying of the graphene film is achieved, preventing temperature gradients and film deformation.

Benefits of technology

Uniform drying of graphene films was achieved, preventing bending and cracking, and improving the performance and stability of capacitors.

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Abstract

The invention relates to the technical field of graphene film processing, in particular to a porous graphene film drying and forming device for a supercapacitor, which comprises a box body, two clamping plates for clamping a graphene film are arranged in the box body, and a vacuum pump for increasing the vacuum degree in the box body is fixed at the top of the box body; a cavity is formed in the box body, the cavity is filled with water, a water pump for driving water in the cavity to flow circularly is fixed to the top of the box body, a heater for heating the water is installed in the side wall of the box body, and airflow circularly flows in the box body. According to the graphene film drying device, heat exchange is conducted on air flowing in the air inlet pipe and the air outlet pipe through water in the cavity, so that the temperature of the flowing air is increased, uniform drying of the graphene film is facilitated, airflow flows through the two sides of the graphene film, and the airflow is further used for making full contact with the graphene film and taking away water and water vapor on the graphene film.
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