rganic batteries have become an environmentally friendly alternative to conventional energy storage systems. Redox-active polymers replace scarce battery metals (e.g. lithium cobalt oxide) and boost the performance of supercapacitors and redox-flow-batteries as well. Functional materials can be printed in a targeted and material saving way on diverse surfaces by inkjet printing. Thus the door opens for potential applications, e.g. in biochip fabrication and organic electronics.