The introduction of suitable catalytic hosts is considered as a suitable way to hinder the "shuttling effect" of lithium polysulfides (LPSs) in lithium−sulfur (Li−S) batteries. At present, most catalytic hosts can accelerate the conversion of LPSs, but there are few reports that catalytic hosts accelerate the conversion of solid-phase discharge products (Li 2 S 2 /Li 2 S) into liquid-phase LPSs. Herein, a heterostructure catalyst with flaky WS 2modified TiO 2 hollow spheres (WS 2 -TiO 2 ) is reported, which accelerates the conversion between liquid-phase LPSs and solidphase Li 2 S 2 /Li 2 S. A Li−S battery with S@WS 2 -TiO 2 cathode exhibits an initial discharge specific capacity of 1091.7 mAh g −1 at 0.3C, outstanding rate capability of 378.7mAh g −1 at 10C, and low capacity decay of 0.0753% per cycle over 800 cycles at 1C. Therefore, this work provides a suitable way to construct heterosturcture catalytic hosts to realize the commercial application of Li−S batteries.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.