To overcome existing technological hurdles of this cell chemistry, the Fraunhofer Institute for Material and Beam Technology IWS and its partners are investigating a new cell architecture that reduces electrolyte content and adapts solid-state chemistry.
Their goal is to develop practical cell concepts that combine high energy density with improved cycle life and enhanced safety.
The project aims to develop a solid-state lithium-sulfur cell that provides comparable energy while weighing significantly less than current batteries.
Conventional lithium-sulfur cells exhibit limited cycle life because their liquid electrolytes promote the formation of soluble polysulfides.
These byproducts result in material losses and accelerated cycle stability degradation.
Author's summary: Developing solid-state lithium-sulfur cells for better energy density.