A Sheet-like Carbon Matrix Hosted Sulfur as Cathode for High-performance Lithium-Sulfur Batteries

• DOI: 10.1038/srep20445
• Publication Date: 2016-02-04T10:42:28Z
• Authors: Songtao Lu; Yan Chen; Jia Zhou; Zhida Wang; Xiaohong Wu; Jian Gu; Xiaoping Zhang; Aimin Pang; Zilong Jiao; Lixiang Jiang
• Keywords: Carbon fibers

Abstract Lithium-sulfur (Li-S) batteries are a promising candidate of next generation energy storage systems owing to its high theoretical capacity and density. However, date, commercial application was hindered by the inherent problems sulfur cathode. Additionally, with rapid decline non-renewable resources active appeal green chemistry, intensive research new electrode materials conducted worldwide. We have obtained sheet-like carbon material (shaddock peel sheets SPCS) from organic waste shaddock peel, which can be used as conductive matrix for sulfur-based cathodes. Furthermore, raw low-cost, truly recyclable. As result, cathode made SPCS (SPCS-S), deliver reversible 722.5 mAh g −1 at 0.2 C after 100 cycles recuperability ~90%, demonstrating that SPCS-S hybrid is great potential rechargeable Li-S batteries. The electrochemical performance could attributed network large surface area conductivity SPCS, in enable uniform distribution sulfur, better ability trap soluble polysulfides accommodate volume expansion/shrinkage during repeated charge/discharge cycles.