Potassium Ion–Assisted Self–Assembled MXene-K-CNT Composite as High–Quality Sulfur–Loaded Hosts for Lithium–Sulfur Batteries

We successfully synthesized hybrid MXene-K-CNT composites composed of alkalized two-dimensional (2D) metal carbide and carbon nanotubes (CNTs), which were employed as host materials for lithium-sulfur (Li-S) battery cathodes. The unique three-dimensional (3D) intercalated structure through electrostatic interactions by K