The study, led by the researchers of Chiba University in Japan and published in Nature Communications Chemistry, found that adding tiny amounts of caffeine to a specific part of a fuel cell can dramatically boost their efficiency, potentially bringing us one step closer to a sustainable energy future. Researchers say that enhancing the activity of the oxygen reduction reaction, something known as the ORR, the ore is crucial for fuel cells and development. In simple terms, the ore is a chemical process that generates electricity inside of fuel cells