Dalian Institute of Chemical PhysicsThey added a new kind of electrolyte additives, which include a large size cation, to complex and stabilize the polysulfide in the electrolyte. This new proposed electrolyte could achieve a high energy density Li-S battery with a longer cycle life. The related research has been published on .

Li-S batteries have been one of the hottest spots of international research in energy storage field, owing to their high energy density and low cost.

In order to suppress the disproportionation of polysulfide, this research group introduced a kind of large size cation into the Li-S battery. This could complex and stabilize the soluble of polysulfide, which is based on the hard and soft acids and bases (HSAB) theory.

This interesting finding is believed to shed a light on the further development of Li-S batteries.

2017.12.23