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Researchers at the University of Miskolc, in collaboration with researchers from Chung-Ang University in Seoul, have developed supercapacitor electrodes that are unique even on an international scale, environmentally friendly, and highly flexible. The project has resulted in a highly efficient energy storage technology that can be directly applied in industrial settings.
On February 1, 2023, the University of Miskolc and Premet Kft. launched a project aimed at developing and testing innovative capacitor materials, which has recently been successfully completed. The goal of the joint effort was to develop a highly efficient capacitor material production technology suitable for industrial use that provides an effective solution to energy storage challenges.
Supercapacitors can store significantly more charge than their traditional counterparts. They can be charged extremely quickly and are also capable of discharging the stored energy in a very short time. The newly developed electrodes are ideally suited for the efficient storage of energy generated by renewable sources, for supplementing batteries, and for providing a reliable power supply to sensors and detectors.
During the development of the supercapacitor material, researchers from the University of Miskolc and Chung-Ang University in South Korea conducted parallel laboratory work. The researchers used carbon-based nanomaterials—including carbon nanotubes, graphene, and carbon nanosheets—and incorporated a Ni-P coating and silver nanoparticles into the structure to maximize performance.
The technological innovation lay in the flexible substrate surfaces: the Seoul-based researchers used traditional Korean paper as a substrate, taking advantage of its eco-friendly and flexible properties, while the research team at the University of Miskolc examined and tested flexible metal meshes as well as unique structures produced via 3D printing by project partner Premet Kft.
At the end of the research and development process, the experts conducted a detailed analysis of the microstructure and electrochemical properties of the completed electrodes. As a result of the joint effort, not only was an international patent application filed, but a manufacturing “technology window” was also defined that industrial partners can directly apply in production.
The project benefits more than just economic actors: the experience gained and the results are also being integrated into university education, enriching the University of Miskolc with a valuable, new, international knowledge base.
