The spoke “Electric traction and batteries” will create a network of research centers and laboratories, largescale demonstration environments, full-scale prototypal applications to achieve the following goals: (i) Development of equipment for Smart Electric Mobility Systems and Development of power-dense and highly efficient Power Converters and Electrical Machines. (ii) Development of materials for electrochemical energy storage and conversion. (iii) Development/production of electrochemical and hybrid cells and battery packs, supercapacitors, and fuel cells: integrated control and diagnostics for improved performance and lifetime (iv) Development of devices and systems for fast and ultra-fast innovative charging infrastructures and Models for control strategies and system architectures to interface different mobility infrastructures with Renewable Energy Sources (RESs), Battery Electric Storage Systems (BESSs) and grid.