アプリケーションギャラリ

Lithium-sulfur (Li-S) batteries are used in niche applications with high demands for specific energy densities, which may be as high as 500-600 Wh/kg.

The chemistry is fairly complex, since multiple polysulfide species participate in the various charge transfer reactions. The chemistry also involves chemical precipitation-dissolution of multiple solid species.

This example models discharge of a Li-S cell at two different discharge rates. The electrolyte charge and mass transport of a lithium salt and 6 polysulfides is included, as well as the precipitation-dissolution of solid octasulfur (S8) and lithium sulfide (Li2S) in the separator and positive electrode.