Design of a sulfur host with CuCo 2 O 4 supported on carbon cloth for lithium sulfur batteries.

A high-efficiency sulfur host with bimetallic oxide CuCo 2 O 4 cubes supported on carbon cloth has been designed and used in lithium sulfur batteries, which can suppress the "shuttle effect" and boost the redox reaction kinetics. The unique three-dimensional cube-based structure realized a high sulfur loading of 7.1 mg cm -2 , and the corresponding assembled lithium sulfur battery delivered excellent cycling stability over 100 cycles at 0.1C.