초록 |
A carbon host capable of effective sulfur loading is the key for lithium–sulfur(Li-S) batteries. Despite the various application of porous carbon materials, the carbon hosts capable of uniformly impregnating sulfur is still challenging. To address this issue, we demonstrate a CNT particles containing spherical macropores. The spherical macropores improve the penetration of sulfur into the carbon nanotube matrix. Consequently, The S-loaded CNT particle cathode shows a highly reversible capacity of 1343 mAh/g at a current density even with 70wt% of sulfur contents. |