Spherulite-packed polymer electrolytes with high ion-selectivity for stable lithium–sulfur battery performance

Abstract

We reported a spherulite-packed polymer electrolytes via modulating the phase separation kinetics with TEGDME and the in situ polymerization of AMPSLi. This structure established a synergistic physical-electrostatic barrier against polysulfides. Consequently, lithium–sulfur batteries retain a capacity of 705 mAh g-1 after 300 cycles at 1C, demonstrating enhanced long-term stability.