Although various inorganic particles have been confirmed as effective trappers to restrict the shuttle effect of lithium polysulfides (LiPSs) in lithium-sulfur batteries (LSB), the further reduction of LiPSs is impeded due to their low conductivity. This process results in sluggish redox kinetics at the interface of cathode/electrolyte and escaped LiPSs to electrolytes during long-term cycling. Herein, by advantageous functional integration of immobilization and conversion capability for LiPSs, a 3D aerogel with the composition of Co@CoO@N-doped carbon@graphene (Co@CoO@N-C/rGO) is designed and prepared. The dual-shells of N-C and polar CoO enable the strong chemical adsorption towards LiPSs through pyridinic – N-Li-bond and Co···S coordination, respectively. And the conductive Co core acts as a “scissor”, which catalyzes the transformation of adsorbed LiPSs into low-order ones, thus accelerating the kinetics of the liquid–solid nucleation and growth of Li S. Moreover, the ma