三峡大学学报(自然科学版)2011,Vol.33Issue(5):80-83,4.
高性能锂离子电池SiO/C复合负极材料研究
High-performance SiO/C Composite Anode Material for Lithium Ion Battery
摘要
Abstract
SiO/C composite anode material with high capacity, high cycling stability for lithium ion battery is synthesized by high-energy mechanical milling and subsequent heat treatment using silicon-monoxide and citric acid as raw materials. The phase composition and micro morphology of the composite material are investigated by the X-ray diffractometer(XRD) and scanning electron microscope(SEM), indicating nano-sized SiO particles was coated by pyrolytic carbon with porous feature. SiO/C composite electrode presents excellent electrochemical performance with reversible capacity as high as 803.1 mA·h/g and capacity retention rate of 89% after 100 cycles.关键词
一氧化硅/柠檬酸/负极/锂离子电池Key words
silicon-monoxide/citric acid/anode/lithium ion battery分类
化学化工引用本文复制引用
余德馨,杨学林,石长川,张鹏昌..高性能锂离子电池SiO/C复合负极材料研究[J].三峡大学学报(自然科学版),2011,33(5):80-83,4.基金项目
国家自然科学基金项目(50972075) (50972075)
教育部科学技术研究重点项目(209083) (209083)
湖北省教育厅产学研合作重大项目(CXY2009A004) (CXY2009A004)