1 research outputs found
Free-Standing Mn<sub>3</sub>O<sub>4</sub>@CNF/S Paper Cathodes with High Sulfur Loading for Lithium–Sulfur Batteries
Free-standing
paper cathodes with layer-by-layer structure are synthesized for high-loading
lithium–sulfur (Li–S) battery. Sulfur is loaded in a
three-dimensional (3D) interconnected nitrogen-doped carbon nanofiber
(CNF) framework impregnated with Mn<sub>3</sub>O<sub>4</sub> nanoparticles.
The 3D interconnected CNF framework creates an architecture with outstanding
mechanical properties. Synergetic effects generated from physical
and chemical entrapment could effectively suppress the dissolution
and diffusion of the polysulfides. Electrochemical measurements suggest
that the rationally designed structure endows the electrode with high
utilization of sulfur and good cycle performance. Specifically, the
cathode with a high areal sulfur loading of 11 mg cm<sup>–2</sup> exhibits a reversible areal capacity over 8 mAh cm<sup>–2</sup>. The fabrication procedure is of low cost and readily scalable.
We believe that this work will provide a promising choice for potential
practical applications