Carbon-Based Nanocomposites

Lithium-sulfur batteries are one of the most promising technologies among the emerging electrochemical energy storage due to its high energy density, high theoretical capacity, low cost and abundance of sulfur cathode.. It can be a potential alternative to Li–ion batteries for electric vehicle industries. However, issues like high polysulfide shutting, insulating sulfur species; large volume expansion have hindered its commercial application. In this chapter we have demonstrated the carbon nanostructure-Sulfur composite cathodes which can easily be able to alleviate these technical issues in the future. The development of different sulfur/carbon composite cathode which includes different porous carbons, carbon nanotubes, graphene, carbon nanorod, carbon nanofibers, and their composites are demonstrated. The change in the chemical interaction of lithium polysulfides with cathode surface can successfully be tuned by modification of these carbons with different metal inorganic, organics, polymers have been discussed in this chapter.