Regeneration of Metal Sulfides in the Delithiation Process: The Key to Cyclic Stability

The regeneration of metal sulfides during the delithiation process is the key to achieving cyclic stability in electrode materials. A graphene-supported peony-like MoS2 nanocomposite with a long cycle life and a high rate capability is designed for this purpose. The synergistic effects of the MoS2 hierarchical structure and graphene can effectively improve the lithium diffusion dynamics and conductivity, thus greatly suppressing the oxidation of Li2S to polysulfides by improving the reversibility of the conversion reaction. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.