High entropy FeCoNiMnZnS2 with a yolk–shell structure for high performance lithium–sulfur batteries

Abstract

For the first time, we report a high-entropy, yolk–shell structured FeCoNiMnZnS₂ catalyst, and used it as a separator modifier for lithium–sulfur batteries. The assembled battery exhibited a high discharge specific capacity of 1593 mAh g⁻¹ at 0.1C, and operated for 1700 cycles at 1C with low capacity fading.