BATSS, “Safe efficient BATtery SyStem based on advanced cell technology”, HORIZON-CL5-2022- D2-01-05 Grant agreement ID: 101103821. Cell-to-pack design of battery pack according to safety-by-design rules with special emphasis on fire-related events, compact cooling and BMS system, which allows modularity and (dis)assembly for marine and construction applications in first life and stationary, in second life.