Researchers from the Barcelona Institute of Materials Science, the Catalan Institute of Nanoscience and Nanotechnology, and the National University of La Plata have developed a method to boost battery power density by up to 80%. The team achieved this by introducing small metal elements into the electrolyte, which act as wireless electrodes to facilitate faster charge transfer.
During experiments with zinc-air batteries, scientists incorporated small fragments of platinum and zinc. These elements polarize under an electric field, functioning as secondary electrodes without direct wire connections to the main circuit. This configuration reduces internal resistance by up to 64% and increases peak current density by over 50%.
The technology primarily enhances power delivery and reduces energy loss rather than increasing total storage capacity. While the researchers noted that zinc-air batteries are safe and use accessible materials, they currently suffer from low power output and slow reaction speeds. This new principle aims to address these specific limitations.
The development is currently in the experimental stage rather than ready for commercial application. Future research will focus on evaluating the long-term durability, safety, and scalability of this design. Potential applications include energy storage systems for renewable sources like wind and solar power.
