Sulfur-graphene composite with molybdenum particles for stabilizing lithium–sulfur batteries

Abstract

Commercial Mo particles coated with an oxide layer of MoO₃ were introduced into the sulfur-graphene cathode of Li–S battery. Mo particles in the core could improve the electronic conductivity of the electrode and MoO₃ layer could alleviate polysulfides diffusion, which enhances the long life cycle. Note that the discharge capacity retention was 71.8% after 100 cycles at 0.1 C in the presence of 10 wt% Mo particles.