Quantum Spin Exchange Interactions to Accelerate the Redox Kinetics in Li–S Batteries

Highlights Compared with the traditional single-atom catalysts (SACs), the Mg SACs with axial displacement is accurately fabricated on the functional carbon nanotubes. The electronic spin polarization modulates the spin density of MgPc, facilitating the LiPSs conversion kinetics in Li-S batteries. The MgPc@FCNT achieves ultra-low capacity decay rate under the high sulfur loading.