Non-aqueous lithium-ion batteries are currently widely used throughout society, but aqueous batteries could be more feasible for grid-scale applications or even electric cars when factors like cost and safety are taken into consideration. Rechargeable aqueous zinc-ion batteries are promising energy storage devices due to their high energy density, safety, environmental friendliness, and low cost. However, their development for commercial applications remains in the beginning stages because of the limited options among positive electrodes exhibi...
