Disulfide-Assisted Organic Polysulfide Cathode Design Enables Improved Kinetics in Lithium-Sulfur Batteries.

ABSTRACT: Lithium-sulfur batteries (LSBs) is fundamentally limited by the "shuttle effect" and poor kinetics. To address these challenges, this study proposes an approach through developing a novel organic polysulfide composite cathode with high sulfur loading. By implementing a radical reaction between elemental sulfur and a disulfide of tetramethylthiuram disulfide (TMTD), linear organic polysulfides (TMTD-S) containing over 70 wt% sulfur are successfully synthesized. This kind of material features a covalently bonded R-Sn-R (R=C₂H₆N(S)) backbone. Further compounding with the conductive carbon (ECP600JD) and integrating into a paper-based electrode help to improve the electrode's conductivity and optimized ion transport pathways. The obtained TMTD-24S@ECP600JD cathode demonst

SUBMITTER: Li R 

PROVIDER: S-EPMC12798778 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature