XAS/XES study of Li-polysulfide species in organic and hybrid polymer electrolytes

Li-S batteries are a promising candidate for future replacement of Li-ion batteries. However, they suffer from the mobility of Li-polysulfide species in the electrolyte, which can degrade cell performance. To avoid this, the polysulfides can be immobilized in various ways, mainly by using electrolytes that don't support polysulfide transport. We measure various electrolyte samples with Li-polysulfides to determine the mobility of the polysulfides in them, to asses the most optimal electrolyte composition.