2D Nanochannel Interlayer Realizing High‐Performance Lithium–Sulfur Batteries

Abstract Commercialization of lithium–sulfur (Li–S) batteries is largely limited by polysulfide shuttling and sluggish kinetics. Herein, 2D nanochannel interlayer composed of alternatively‐stacked porous silica nanosheets (PSN) and Ti 3 C 2 T x ‐MXene are developed. The 2D nanochannels with selective cation transport characteristics facilitate lithium ion rapid transport, while reject the translocation of polysulfide anions across the separator. The hydroxylated MXene shifts the p ‐band center of the surface O on PSN closer to the Fermi level, leading to strong absorptive/catalytic effect for polysulfides and thus fast polysulfide transformation kinetics. Together with the ion/electron bi‐conduction function…

• NN
  National Natural Science Foundation of China

  Awards: Grant Nos. 52062004, Grant Nos. 52372185
• NS
  Natural Science Basic Research Program of Shaanxi Province

  Award: 2024JC‐YBQN‐0073
• SS
  Shenzhen Science and Technology Innovation Program

  Award: KQTD20210811090112002