Full cells prototype (Hassoun, Pellegrini, BeDimensional).
The target is TRL5 by exploiting S-graphene composite cathode with high S loading and either Li metal or lithiated Si as anode. Target performances are capacity >700 mAh/gS @ 1C for >200 cycles in cells with a S loading >5mg/cm2. Different electrolyte formulations will be addressed to control the polysulfide solubility, address safety, obtain tailored SEI etc. To screen for novel SEI- and CEI-forming electrolyte additives and determine solubilities of elemental S and PSs in the electrolytes modeling and operando spectroscopy and imaging will be applied. Coating on the Li metal will be investigated to further protect Li anode surface to improve cell performance and stability. Collaboration with WP3 and WP16