Three Dimensional Carbon Host Materials

Recently, various carbonaceous materials including porous carbon, one-dimensional and two-dimensional carbon structures are gaining momentum to be used as the promising host materials for better sulphur cathode design in Li–S secondary batteries. But still Li–S batteries are facing some technological challenges such as polysulphides intermediates dissolution resulting shuttle effect, large volume expansion of active sulphur, suitable electrolyte matching and less sulphur loading in the carbon/sulphur composite cathode. A step forward to overcome the addressed problems is to find the appropriate cathode using three dimensional carbon as a host material which not only ensure the higher sulphur loading in the carbon/sulphur composite but also can enhance the electrochemical performance of Li–S batteries. This chapter summarizes the chemical properties of three dimensional carbon host materials used in the Li–S batteries. It mainly focuses on the influences of these materials in achieving higher electrochemical performance of Li–S batteries.