A high-areal-capacity lithium–sulfur cathode achieved by a boron-doped carbon–sulfur aerogel with consecutive core–shell structures

A boron doped carbon-sulfur (BCS) aerogel with consecutive "core-shell" structures, acting as a binder free cathode for lithium-sulfur batteries, has achieved a high specific capacity of 1326 mA h g-1, long cycling lifespan and a high areal capacity of 12.3 mA h cm-2.