 A new solution has been developed to prevent the formation of dendritic growth in aqueous zinc metal batteries. Polyacrylonitrile coatings were applied to the zinc anodes, which improved the hydrophilicity of the zinc anode and regulated ion transport, thereby reducing the formation of dendrites. This resulted in a longer cycle life and more efficient use of zinc in the battery. This article was authored by Peng Chen, Sheen Hai Yuan, Ing-Bin Xia, and others.