Scientists at Northwestern University have developed a process to convert triphenylphosphine oxide (TPPO), an industrial waste, into a useful material for energy storage in batteries. This new method could potentially replace rare metals in certain applications, particularly for large-scale energy storage from renewable sources. While these redox flow batteries are not as efficient as lithium batteries and are too bulky for portable devices, they present a promising solution for electricity grids. The research highlights the importance of sustainable alternatives in battery technology. Teljes cikk (Euronews.com)