biostudies-literatureChen PNational Basic Research Program of ChinaEducation Department of Jilin ProvinceNational Natural Science Foundation of China4538-4544https://www.ebi.ac.uk/biostudies/studies/S-EPMC9049200biostudies-literatureUnknown10(8)The shutting effect in lithium-sulfur (Li-S) batteries hinders their widespread application, which can be restrained effectively by a modified separator. In this work, a composite of reduced graphene oxide and beta-phase TiO₂ nanoparticles (RGO/TiO₂(B)) is designed as a separator modification material for improving the electrochemical behavior of Li-S batteries. The TiO₂(B) nanoparticles are <i>in situ</i> prepared and tightly adhere to the RGO layer. A series of examinations demonstrated that the RGO/TiO₂(B)-coated separator efficiently inhibits the polysulfide shuttling phenomenon by the cooperative effect of physical adsorption and chemical binding. Specifically, as modified separators, a comparison between TiO₂(B) and anatase TiO<sRSC advancesReduced graphene oxide/TiO₂(B) nanocomposite-modified separator as an efficient inhibitor of polysulfide shuttling in Li-S batteries.PMC9049200JJKH20181121KJ51803013JJKH20181118KJ518020262017YFE9128100Liu HDong WChen PMa ZSu ZWang ZZhang BZhao JLiu WfalseReduced graphene oxide/TiO₂(B) nanocomposite-modified separator as an efficient inhibitor of polysulfide shuttling in Li-S batteries.The shutting effect in lithium-sulfur (Li-S) batteries hinders their widespread application, which can be restrained effectively by a modified separator. In this work, a composite of reduced graphene oxide and beta-phase TiO₂ nanoparticles (RGO/TiO₂(B)) is designed as a separator modification material for improving the electrochemical behavior of Li-S batteries. The TiO₂(B) nanoparticles are <i>in situ</i> prepared and tightly adhere to the RGO layer. A series of examinations demonstrated that the RGO/TiO₂(B)-coated separator efficiently inhibits the polysulfide shuttling phenomenon by the cooperative effect of physical adsorption and chemical binding. Specifically, as modified separators, a comparison between TiO₂(B) and anatase TiO<s2020-01-01T00:00:00Z2020 Jan2025-04-26T15:14:11.401Z2025-04-06T14:51:54.785ZS-EPMC90492003549522510.1039/c9ra10185c