Batteries and other energy storage and energy transformation devices require a dedicated functionalisation of the subcomponents. From surface structuring to cutting and assembly of the different components, every single processing step should not influence the basic properties of the material and should even more increase the the characterics of the entire device. Ultrashort pulsed lasers provide technologies to optimize the electrical properties of the electrodes in batteries but also allow the modification of components in redox flow batteries and also in fuel cells. With micro and nano scaled structured electrodes based on ultra short ablation and modification the efficiency of batteries and electrolysers can be increased significantly. Especially in new types of batteries, like solid state batteries, short wavelengths in the UV provide the necessary power and physical properties to allow thin film modification an large scales. With ultra short pulsed lasers in the UV nano scaled modification of electrodes can be realized without influencing the electical properties of the electrodes without loosing active surface areas. With high power ultra short pulsed lasers and adapted beam guiding technologies large area surfaces can be processed. The presentation will show different approaches for the use of high power ultra short and UV lasers for the manufacturing of battery components.