Waste cotton cloth derived carbon microtube textile: a robust and scalable interlayer for lithium–sulfur batteries

Abstract

A robust carbonized cotton cloth interlayer composed of numerous knitted hollow carbon microtubes is simply derived from waste cotton cloth by scalable carbonization. The interlayer acts as an upper current collector and a lithium polysulfide barrier simultaneously, thus greatly improving the electrochemical performances of the lithium–sulfur batteries.