电化学2017，Vol.23Issue(6)：654-660,7.DOI:10.13208/j.electrochem.160928
PEG包覆涂层对含碳纤维导电剂的锂硫正极材料的影响
Effect of PEG Coating on Properties of Lithium-Sulfur Battery Cathode Material Containing Carbon Fiber Conductive Agent
摘要
Abstract
The composite materials contained high modulus carbon fiber (HMCF) were successfully prepared by employing a ballmilling process based on the coating treatment of polyethylene glycol (PEG),and their structures and morphologies were characterized by scanning electron microscopy (SEM),X-ray powder diffraction (XRD),and X-ray photoelectron spectroscopy (XPS) techniques.The influences of PEG content on sulfur cathode capacity,cycle stability and rate performance were systematically studied.It was found that by the pre-coating of PEG,the cathode exhibited the high initial discharge specific capacity of 1312.5 mAh· g-1 at a current rate of 0.2C,and the reversible discharge capacity of 650 mAh· g1 was obtained after 50 cycles at a current rate of 200 mA· g-1,showing the remarkably improved cycling stability.关键词
锂硫电池/硫正极/高模量碳纤维/包覆/聚乙二醇Key words
lithium-sulfur battery/sulfur cathode/high modulus carbon fiber/coated/polyethylene glycol分类
化学化工引用本文复制引用
谭杰成,田艳红,张学军,樊开乐..PEG包覆涂层对含碳纤维导电剂的锂硫正极材料的影响[J].电化学,2017,23(6):654-660,7.基金项目
北京市科委基金项目资助 （）
