▎ 摘 要
High performance of lithium-sulfur batteries have been dragged down by their shuttling behavior which is complicated multiphase transition-based 16-electron redox reactions of the S-8/Li2S. In this article, the triple-phase interfaces of graphene-like carbon clusters on antimony trisulfide (C-Sb2S3) nanowires are tailored to design a multifunctional polysulfide host which can inhibit migration of polysulfides and accelerate conversion kinetics of redox electrochemical reactions. Benefiting from the triple-interface design of polysulfides/Sb2S3/carbon clusters, the C-Sb2S3 electrode not only anchors polysulfide migration by the synergistic effect of Sb, S, and C atoms as interfacial active sites, but also the graphene-like carbon clusters shorten the diffusion paths to further favor redox electron/ion transport through the liquid (elec-trolyte/polysulfide) and solid (Li2S/S-8, carbon clusters, and Sb2S3)-based triple-phases. Therefore, these Li2S6-based C-Sb2S3 cells possess high sulfur loading, excellent cycling stability, impressive specific capacity, and great rate capability. This work of interfacial engineering reveals insight for powering reac-tion kinetics in the complicated multistep catalysis reaction with multiphase evolution-based charge-transfer/non-transfer processes. (C) 2020 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.