Chinese scientists create high-energy water battery, surpassing lithium cells

Chinese researchers from the Chinese Academy of Sciences developed a water-based battery with an energy density of 1200 Wh/L, surpassing traditional lithium batteries' 700 Wh/L. The battery is safer and could expand applications in electric vehicles. The battery ran for over 300 cycles with a cadmium anode and 1000 cycles with a vanadium anode, showing significant stability. The battery's energy density even exceeded that of some solid electrode materials.