The future of zinc is green. New zinc-air and zinc-ion batteries have caught the attention of green energy developers as a safer and cheaper alternative to lithium batteries. Unlike lithium, zinc is more abundant, easier to recycle and less flammable, making it an ideal choice for technologies seeking to improve both efficiency and sustainability. Zinc-based batteries are already being tested in large-scale energy storage for power grids, a crucial area for the expansion of renewable energy.