A structural energy storage composite material flat battery and its application

By using carbon fiber composite materials to prepare structural energy storage composite flat batteries in drone battery packs, the problems of large size, heavy weight and safety hazards of the battery pack are solved, and more efficient energy density and safety are achieved.

CN119764311APending Publication Date: 2025-04-04HUANGHE S & T COLLEGE
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Patent Information

Application Number
CN202411923190.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-04-04

AI Technical Summary

Technical Problem

The existing drone battery packs are large in size and heavy in weight, which affect the range and energy utilization rate. They also have safety hazards, such as extrusion deformation and thermal runaway.

Method used

The structural energy storage composite flat battery is prepared using carbon fiber composite materials. By setting up ultra-thin carbon fiber prepreg on the outside of the electrode sheet and combining the curing molding process, the energy storage battery cell and carbon fiber composite materials are integrated.

Benefits of technology

It significantly reduces the weight of the energy storage system, improves energy density and space utilization, enhances the mechanical performance and safety of the battery, extends the flight time of the drone and reduces production costs.

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Abstract

The present invention discloses a structural energy storage composite material flat-plate battery, which relates to the technical field of energy storage materials, including an insulating diaphragm, wherein the upper and lower sides of the insulating diaphragm are respectively provided with electrode sheets, and the outer side of the electrode sheet is provided with ultra-thin carbon fiber prepreg; the electrode sheet is made by the following preparation method: the active material, conductive carbon black, and binder are mixed evenly according to a proportion; added to an organic solvent, and vacuum stirred; the prepared electrode slurry is coated on an aluminum foil current collector by a scraper coater; the coated electrode sheet is rolled; vacuum dried, sealed, and stored. The carbon fiber composite material structural battery prepared by the present invention can be integrated on the wings of a drone, which is an effective way to design a multifunctional lightweight structure of a drone, and the weight is significantly reduced compared with lithium batteries and integrated solar cells.
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