▎ 摘　　要

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.