Due to the highest theoretical specific capacities and energy, low cost and toxicity, elemental sulfur has caused wildly attention and be considered the most competitive cathode material for the next generation lithium batteries. However, for the insulating nature of sulfur and the loss of polysulfides in the liquid organic electrolyte, lithium-sulfur batteries exhibited low active material utilization and poor cycle performance. In order to overcome these problems, researchers have done a lot of work. Rece...