Preparing a Composite Including SnS 2, Carbon Nanotubes and S and Using as Cathode Material of Lithium-Sulfur Battery

Abstract

A new SnS₂/CNTs/S composite is prepared and used as the lithium-sulfur battery cathode material. SnS₂ works as the adsorbent to hinder or reduce the shuttle effect of lithium polysulfides. CNTs work as the conductive network of the composite. The synergistic effect come from the SnS₂ and CNTs commits to the Li-S battery electrochemical performance. The composite has shown a good electrochemical performance: the first discharge capacity is 1308.6 mAh g^-1 (0.1 C) and a reversible capacity of 1002.3mAh.g^-1 after 100 cycles, indicating a good potential application.