Binder-free cathodes based on sulfur–carbon nanofibers composites for lithium–sulfur batteries†
Abstract
Binder-free S-FCNF composite films with sulfur coated uniformly on the surface of FCNFs were used as cathodes for lithium–sulfur batteries. Such cathodes have both high sulfur content (78 wt%) and large areal mass loading (8 mg cm−2), and they can deliver a high areal specific capacity of 1.87 mA h cm−2 (234 mA h gelectrode−1) after 100 cycles at 0.1 C.