材料科学
石墨烯
硫黄
储能
锂(药物)
纳米技术
微波食品加热
电极
复合材料
电化学
冶金
计算机科学
化学
量子力学
医学
电信
物理
内分泌学
物理化学
功率(物理)
作者
Zhouting Sun,Yangchang Jiang,Cong Zhi,Bin Zhao,Fei Shen,Xiaogang Han
出处
期刊:Nanotechnology
[IOP Publishing]
日期:2021-04-22
卷期号:32 (28): 285401-285401
被引量:6
标识
DOI:10.1088/1361-6528/abf4a8
摘要
Abstract Lithium−sulfur batteries are one of the most promising energy storage systems due to their high energy density. Many efforts have been made to improve the electrochemical performance of lithium−sulfur batteries. However, the complex and time-consuming preparation process hinders their practical application. In this work, an ultra-fast and facile method has been proposed to prepare the sulfur/graphene composites in a simplified and time-saving preparation process with the assistance of microwave. Microwave is introduced to help sulfur fleetly deposit uniformly on the surface of graphene within just 30 s. Nano-sized sulfur within 30 nm is generated in this ultra-fast process. Lithium−sulfur batteries with as-prepared sulfur/graphene composites exhibit good cycling life with a capacity of 503.5 mAh g −1 at 0.2 C. This method makes it possible for lithium−sulfur batteries to be practical.
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