New triboelectric method could revolutionize portable energy

13.03.2025/07/30 XNUMX:XNUMX    224

An international group of scientists has developed an innovative method of generating electricity using small plastic beads, which works on the principle of triboelectrification.

Schematic representation of the operation of the surfaces of a triboelectric nanogenerator. Photo: Ignaas Jimidar

Researchers have discovered that when plastic beads are placed close together and come into contact, electricity is generated. This generation process is much more efficient than traditional methodsAccording to Dr. Ignaas Jimidar: “Our research shows that small changes in material choice can lead to significant improvements in energy production efficiency”.

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Triboelectric nanogenerators (TENGs) work by using friction between different materials. When the surfaces come into contact with densely packed beads, a charge distribution occurs. Some beads become positively charged, while others become negatively charged. The efficient transfer of these charges directly affects the amount of electricity produced.

The study demonstrates the importance of bead size and material. Larger particles tend to acquire a negative charge. Smaller beads tend to acquire a positive charge. The best results are achieved with beads made of melamine formaldehyde (MF), a material with low elasticity.

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Electron microscopy image of the surface of a triboelectric nanogenerator (TENG) with tiny beads. Photo: Ignaas Jimidar

PRACTICAL APPLICATION AND PROSPECTS

Using beads represents a cost-effective alternative to expensive technologies. This approach is also environmentally sustainable, as it eliminates the need for solvents in production. Dry manufacturing of the particles reduces the negative impact on the environment.




The development of triboelectrification opens up new possibilities for harvesting energy without traditional sources. Potential applications include smart clothing that generates energy from movement. It is also possible to develop small devices that operate autonomously without recharging.

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Despite the encouraging results, the technology needs further improvement. Improving efficiency and reliability remains a key challenge for large-scale implementation. Ongoing materials research continues to expand the possibilities for sustainable energy production.

The study, published in the scientific journal Small, is the result of an international collaboration between four scientific institutions. This work demonstrates the potential of interdisciplinary research in solving global energy challenges.


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