Flexible zinc air battery and fabrication method thereof

A method for preparing a flexible zinc air battery, and a flexible zinc air battery prepared by the method are provided to reduce the weight of a battery, thereby improving energy density remarkably and to allow it to be bent smoothly. A method for preparing a flexible zinc air battery comprises the steps of compressing a film(6) comprising an aluminum thin film and a polymer with a jig to form a lower case so as to allow an electrolyte gel to be put; placing a copper thin film on bottom and putting an electrolyte gel comprising a zinc powder(5), a gelled polymer and a KOH aqueous solution; covering a polypropylene polymer film(4) as a separator on the electrolyte gel and layering a positive electrode(1) and nonwoven(3) in turn; punching a hole(9) to an upper film made of the polymer identical to the polymer film used in the lower case so as to allow air to penetrate and adhering its upper part with a sealing tape(7) to block the penetration air, thereby preparing an upper case; and heat compressing the upper case and the lower case at 150 deg.C or more to adhere them.