Zinc air battery with acid electrolyte

A secondary battery comprising an anode, a cathode, and a static acid electrolyte fluid, wherein oxygen and a dendrite-forming metal form a redox pair to provide current of the battery, wherein the electrolyte further comprises a compound at a concentration effective to provide acidity to the electrolyte and to reduce dendrite formation of the metal during charging, wherein the cathode comprises a material that allows formation of oxygen during charging, and wherein the material is at least one of a Magnelli phase titanium suboxide and glassy carbon.