Carbon Hotels with Nanosulfur Guests: Promising High Capacity Cathode Architecture with Hybrid Electrolyte for Lithium-Sulfur Battery
Through this work, we understand the shuttle mechanisms and its effect on stable cycling performance and high columbic efficiency in Li-S systems. Initially, we have fabricated carbon hotels using starch based precursor with solid state synthesis approach. These premade hollow carbon particles are filled in situ with sulfur nanoparticles, sonochemically. The electrolyte used is DOL:D2:LiTFSI. The newly developed C-S composite cathode demonstrates high columbic efficiency (minimum 97%) and ~900 mAh/g reversible capacity during long cycling.
Bruce, P. G.; Freunberger, S. A.; Hardwick, L. J.; Tarascon, J.-M. Nature Materials 2012, 11.
W. Weng, V. G. Pol, K. Amine, Adv. Mater., 2013, 25, 1608–1615