Protective interlayer for trapping polysulfides and a conducting host for sulfur: dual role of candle soot carbon for the development of high performance lithium–sulfur batteries

Abstract

Candle soot was investigated as conducting host and inbuilt interlayer for lithium–sulfur batteries. The material showed outstanding electrochemical performance with a specific capacity of 667 mAh g⁻¹ at 1C after 200 cycles.