biostudies-literatureGeng MNational Natural Science Foundation of Chinae2204561https://www.ebi.ac.uk/biostudies/studies/S-EPMC9762292biostudies-literatureUnknown9(35)The shuttle effect of lithium polysulfides in lithium-sulfur batteries (LSBs) has a detrimental impact on their electrochemical performance. To effectively mitigate the shuttle effect, in this study, the coral-like CuS is introduced to modify the carbon nanotube (CNTs), which is coated on commercial separator and served as the S cathode interlayer (PE@CuS/CNTs). The CuS/CNTs interlayer possesses efficient physical impediment and chemisorption to polysulfide anions. When achieving maximum adsorption to polysulfide anions, a "polysulfide-phobic" surface would be formed as a shield to restrain the polysulfide anions in the cathode region. Simultaneously, the CuS/CNTs interlayer can improve the lithium ion diffusion and guarantee desirable electrochemical reaction kinetics. Consequently, the LAdvanced science (Weinheim, Baden-Wurttemberg, Germany)The Multi-Functional Effects of CuS as Modifier to Fabricate Efficient Interlayer for Li-S Batteries.PMC976229252102296Yang HGeng MShang CfalseThe Multi-Functional Effects of CuS as Modifier to Fabricate Efficient Interlayer for Li-S Batteries.The shuttle effect of lithium polysulfides in lithium-sulfur batteries (LSBs) has a detrimental impact on their electrochemical performance. To effectively mitigate the shuttle effect, in this study, the coral-like CuS is introduced to modify the carbon nanotube (CNTs), which is coated on commercial separator and served as the S cathode interlayer (PE@CuS/CNTs). The CuS/CNTs interlayer possesses efficient physical impediment and chemisorption to polysulfide anions. When achieving maximum adsorption to polysulfide anions, a "polysulfide-phobic" surface would be formed as a shield to restrain the polysulfide anions in the cathode region. Simultaneously, the CuS/CNTs interlayer can improve the lithium ion diffusion and guarantee desirable electrochemical reaction kinetics. Consequently, the L2022-01-01T00:00:00Z2022 Dec2025-04-26T09:51:42.839Z2025-04-06T13:09:11.669ZS-EPMC97622923628568310.1002/advs.202204561