NANOSHEET COMPOSITE FOR CATHODE OF LITHIUM-SULFUR BATTERY, PREPARATION METHOD THEREOF AND ELECTRODE AND BATTERY COMPRISING THE SAME

摘要

A composite nanosheet for the cathode of a lithium-sulfur battery, a preparation method thereof, and an electrode and a battery having the same. The composite nanosheet includes carbon nanotubes which are closely accumulated in a two-dimensional plane and are combined together by carbon derived from nanocellulose. Transition metal compound nanoparticles which are uniformly distributed in the nanosheet composite and are fixed by the carbon derived from nanocellulose. Sulfur adsorbed on the surface of the transition metal compound nanoparticles. The composite organically combines and exerts the respective advantages of porous carbon, carbon nanotubes and nano metal oxides/sulfide by designing and constructing the structure of the cathode material.