Flower-like Bi2S3/rGO modified separator for lithium-sulfur batteries

A shuttle effect of polysulfide is one of the crucial barriers for Lithium-sulfur batteries (LSBs). Herein, a flower-like Bi2S3/reduced graphene oxide (rGO) modified separator was fabricated by simple solvothermal and filtration processes. Benefiting from the strong chemical capturing ability of flower-like Bi2S3 and conductive pathway derived from rGO, the modified separator obviously alleviated the polysulfide shuttling. The cell with the flower-like Bi2S3/rGO modified separator exhibits a reversible capacity of 600 mAh g(-1) at 0.5C after 300 cycles and a rate capacity of 500 mAh g-1 at 2C. (c) 2022 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan.

Automated summary

In this study, a flower-like Bi2S3/rGO modified separator was fabricated to alleviate the shuttle effect of polysulfide in Lithium-sulfur batteries (LSBs), resulting in improved reversible capacity and rate capacity.