A few-layered Ti3C2 nanosheet/glass fiber composite separator as a lithium polysulphide reservoir for high-performance lithium–sulfur batteries

Abstract

We report in this work a new type composite separator that contains a conductive few-layered Ti₃C₂ nanosheet and a glass fiber (GF) membrane for lithium–sulfur (Li–S) batteries. Using commercial bulk S (particle size 2–10 μm) as the cathode directly, the Li–S battery delivers an initial discharge capacity of 820 mA h g⁻¹ at a current density of 0.5 A g⁻¹ and a discharge capacity of 721 mA h g⁻¹ after 100 cycles.