Microporous Carbon Materials Derived From Sucrose as Sulfur Host for Lithium Sulfur Batteries

Lithium sulfur batteries have attracted increasing attention due to its high theoretical specific capacity (1675 mAh g⁻¹) and high energy density (2600Wh kg⁻¹⁾). However, to achieve the commercial application of lithium sulfur batteries, a cathode with excellent electrochemical performance is needed. Herein, we synthesized microporous carbon materials as sulfur host via a simple activation carbonization method. The MC/S delivered an excellent electrochemical performance. At 1 C rate, MC/S showed an initial discharge capacity of 899.5 mAh g⁻¹, and maintained a capacity of 617.6 mAh g⁻¹ after 150 cycles corresponding to a capacity decay rate of 0.208% per-cycle. (paper)