A Free-Standing Sulfur/Nitrogen-Doped Carbon Nanotube Electrode for High-Performance Lithium/Sulfur Batteries

Table 1 Literature comparison between the electrochemical performances of S/CNT and S/N-CNT composite cathodes for Li/S batteries

Materials	1st discharge capacity (mAh g⁻¹)	nth cycle reversible capacity (mAh g⁻¹)	Current density	Reference
Sulfur-porous carbon nanotubes	895	625 (100th)	0.1 C	[25]
Sulfur-multiwalled carbon nanotubes	1254	716 (40th)	0.2 C	[26]
Aligned carbon nanotube/sulfur	1097.5	~600 (85th)	0.1 C	[27]
Multiwalled carbon nanotubes-sulfur	741	592 (50th)	200 mA g⁻¹	[28]
Sulfur-MWNTs	1274	637 (100th)	0.1 C	[29]
Sulfur/N-CNT composite	1267	807 (100th)	0.2 C	This study