Zinc air battery, a kind of primary battery that uses activated carbon to adsorb oxygen or pure oxygen in the air as a positive electrode active material, uses zinc as a negative electrode, and uses ammonium chloride or a caustic alkali solution as an electrolyte. Also known as zinc-oxygen battery. Zinc-air batteries, which are divided into neutral and alkaline systems, are denoted by the letters A and P, respectively, followed by numbers to indicate the type of battery.
Applied in hearing-aid, bluetooth earbuds（low power）etc.
May be applied in electronic desk calendars, calculators because of its higher capacity than that of silver oxide batteries