Ferroelectric-Enhanced Polysulfide Trapping for Lithium–Sulfur Battery Improvement

Graphical A brand new polysulfide entrapping strategy based on the ferroelectric effect has been demonstrated for the first time. By simply adding the nano-ferroelectrics (BaTiO 3 nanoparticles) into the cathode, the heteropolar polysulfides can be anchored within the cathode due to the internal electric field originated from the spontaneous polarization BaTiO 3 nanoparticles, and thus significantly improving the cycle stability of Li–S batteries.