M1: The specifications and requirements for the battery thermal management system (BTMS) have been finalised.
WP1: Requirements & Specifications
The requirements and specifications at vehicle level have been identified in terms of vehicle performances (max power, max speed, etc.) and driving range, considering the target to remain inside an interval of 60min – 90min more with respect to the driving time of an equivalent vehicle with internal combustion engine for long duration trips of 700-1000 km. Starting from such vehicle requirements, detailed specifications for the battery system have been defined in terms of volume, weight, energy, charging rate, charging power and lifetime of the pack. The battery cells have been selected after an accurate comparison of different parameters of available cells. The battery pack configuration will be composed of 12 modules, each with 15P3S cells, for a total of 540 cells. The battery cooling system must be designed and incorporate advanced thermal technologies to allow a fast charging at 4C continuous at 35 °C ambient without degrading the cells lifetime.
Finally, a concept and validation plan has been identified, with all the necessary virtual simulations and tests to be performed for components, systems and vehicle.