Interference Effect between Lithium Nitrate Additive and the Polysulfide Adsorber Magnesium Ferrite in Lithium-Sulfur Cells

Polysulfide adsorbers and the anti-shuttle electrolyte additive lithium nitrate have been identified as key strategies in enabling high-performance lithium-sulfur batteries. However, while these two additions studied isolation, little research has conducted on how they may interact. Herein, we demonstrate that polysulfide adsorber magnesium ferrite, MgFe2O4, interferes with beneficial effects of nitrate, vice versa. This interference is found to reduce performance cells incorporating MgFe2O4 an interlayer. It appears originate from balance interaction energies between each components.