Printed batteries are a cost-effective alternative to conventional batteries and button cells. They are extremely flexible and can be adapted to specific applications in terms of size, geometric shape and capacity.
There are several technical variants of printed batteries: Solid state batteries, based on lithium, lithium-polymer batteries, both using thin film technology, and printed silver oxide-zinc batteries.
Like other devices designed in printed electronics, printed batteries are produced in multiple printing layers. In the case of alkaline-manganese batteries, the different layers are polyester( PET), a tin anode, the electrolyte, the cathode of manganese dioxide (MnO2) and another polyester film. Such primary cells can be less than 1 mm thin and can be manufactured for nominal voltages of 1.5 V, 3 V, 4.5 V, and 6 V. Their energy density is several milliwatt hours per square centimeter (mWh/cm2).