Multifunctional Ultrathin Ti3C2Tx MXene@CuCo2O4 /PE Separator for Ultra‐High‐Energy‐Density and Large‐Capacity Lithium‐Sulfur Pouch Cells

The shuttling of lithium polysulfides (LiPSs), sluggish reaction kinetics, and uncontrolled lithium deposition/stripping remain the main challenges in lithium-sulfur batteries (LSBs), which are aggravated under practical working conditions, i.e., high sulfur loading and lean electrolyte in large-capacity pouch cells. This study introduces a Ti