Reducing pollutant and CO2 emissions from transport is one of the major environmental challenges of the 21st century. As such, battery-powered vehicles (BEVs) and fuel cell vehicles (FCEVs) appear to be complementary in the world of electromobility. FCEVs are equipped with a proton exchange membrane battery (PEMFC) that converts hydrogen into electricity through electrochemical reactions. Whatever the targeted vehicles (VP, VUL, Bus Trucks...) the development of FCEVs remains today constrained by the relationship of lifespan – power – limited cost of PEMFC technologies. Finally, although the environmental challenge of FCEVs is linked to hydrogen production, the end-of-life recycling of PEMFC stacks already deserves the search for appropriate solutions. In this context, STACK NEXTGEN aims to develop improved PEMFC stacks in terms of lifetime, recyclability and cost. This 30-month project is led by the company SYMBIO in collaboration with the laboratories MATEIS (INSA Lyon) and LEPMI (Grenoble INP). “Stack NEXTGEN” directly contributes to regional and European objectives in terms of innovation and the environment, works for the strategic positioning of Rhône-Alpine industrial and academic actors on the international scene and contributes to the revitalisation of the territory by forming a local hydrogen ecosystem, creating value and jobs.