Scientists develop water-based zinc-ion battery that delivers 900-cycle lifespan

Florida State University researchers developed a rechargeable zinc-ion battery.

It uses low-cost materials and a water-based assembly process.

The prototype survived 900 rapid charge cycles with almost no performance loss.

Its manganese dioxide electrode grows directly inside the cell during production.

A Kevlar-reinforced hydrogel stabilizes the electrolyte and helps prevent short circuits.