title: A Sheet-like Carbon Matrix Hosted Sulfur as Cathode for High-performance Lithium-Sulfur Batteries.
abstract: Lithium-sulfur (Li-S) batteries are a promising candidate of next generation energy storage systems owing to its high theoretical capacity and energy density. However, to date, its commercial application was hindered by the inherent problems of sulfur cathode. Additionally, with the rapid decline of non-renewable resources and active appeal of green chemistry, the intensive research of new electrode materials was conducted worldwide. We have obtained a sheet-like carbon material (shaddock peel carbon sheets SPCS) from organic waste shaddock peel, which can be used as the conductive carbon matrix for sulfur-based cathodes. Furthermore, the raw materials are low-cost, truly green and recyclable. As a result, the sulfur cathode made with SPCS (SPCS-S), can deliver a high reversible capacity of 722.5 mAh g(-1) at 0.2 C after 100 cycles with capacity recuperability of ~90%, demonstrating that the SPCS-S hybrid is of great potential as the cathode for rechargeable Li-S batteries. The high electrochemical performance of SPCS-S hybrid could be attributed to the sheet-like carbon network with large surface area and high conductivity of the SPCS, in which the carbon sheets enable the uniform distribution of sulfur, better ability to trap the soluble polysulfides and accommodate volume expansion/shrinkage of sulfur during repeated charge/discharge cycles.
authors: Department of Chemistry, Harbin Institute of Technology, Harbin, Heilongjiang 150001, PR China.
authors: Songtao
authors: S
authors: Lu
authors: Department of Chemistry, Harbin Institute of Technology, Harbin, Heilongjiang 150001, PR China.
authors: Yan
authors: Y
authors: Chen
authors: Department of Chemistry, Harbin Institute of Technology, Harbin, Heilongjiang 150001, PR China.
authors: Jia
authors: J
authors: Zhou
authors: Department of Chemistry, Harbin Institute of Technology, Harbin, Heilongjiang 150001, PR China.
authors: Zhida
authors: Z
authors: Wang
authors: Department of Chemistry, Harbin Institute of Technology, Harbin, Heilongjiang 150001, PR China.
authors: Xiaohong
authors: X
authors: Wu
authors: Hubei Institute of Aerospace Chemotechnology, Hubei 441003, PR China.
authors: Jian
authors: J
authors: Gu
authors: Hubei Institute of Aerospace Chemotechnology, Hubei 441003, PR China.
authors: Xiaoping
authors: X
authors: Zhang
authors: Hubei Institute of Aerospace Chemotechnology, Hubei 441003, PR China.
authors: Aimin
authors: A
authors: Pang
authors: Science and Technology on Reliability and Environmental Engineering Laboratory, Beijing Institute of Satellite Environment Engineering, Beijing, 100094, PR China.
authors: Zilong
authors: Z
authors: Jiao
authors: Science and Technology on Reliability and Environmental Engineering Laboratory, Beijing Institute of Satellite Environment Engineering, Beijing, 100094, PR China.
authors: Lixiang
authors: L
authors: Jiang