The primary function of theme Energy Storage is to deepen the understanding of energy storage units, electrochemical cells, materials, and performance limiting processes, to exploit this knowledge for better performing electric vehicles. The focus lies on optimizing key factors behind ageing and health of the energy storage devices, focusing on present and next-generation lithium-ion battery technologies but also encompassing fuel cell systems. The objective is to maximize the driving range, facilitate fast and flexible charging, improve storage diagnostics and minimize cost and environmental impact.