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  • One-step hydrothermal synthesis of Li2FeSiO4/C composites as lithium-ion battery cathode materials

    一步水热合成锂离子电池正极材料Li2FeSiO4/C复合材料

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    出版日期:2012

    作者单位:1.SchoolofMaterialsScienceandEngineering,HenanUniversityofTechnology,Zhengzhou,450007China2.MaterialsScienceandChemicalEngineeringDepartment,PolitecnicodiTorino,CorsoDucadegliAbruzzi24,10129Turin,Italy
    杂志名称:Journal of Materials Science
    卷号:47
    期数:5
    刊号:0022-2461
    出版日期:2012

    简介:Li2FeSiO4/Ccompositeswereone-stepsynthesizedunderhydrothermalconditionsat200°Cfor72husingglucoseascarbonsource.Byadjustingthequantityofaddedglucose,weobtainedvariedLi2FeSiO4/Ccompositeswithdifferentsizeandmorphology.AseriesofelectrochemicaltestsdemonstratethattheLi2FeSiO4/Cnanoparticleswithdiametersabout20nmhavehigherdischargecapacity,andslowercapacityfadingincomparisonwithLi2FeSiO4andotherLi2FeSiO4/Ccomposites.Li2FeSiO4/Cnanoparticlesdeliveradischargecapacityof136mAhg?1at0.2C,andafter100cycles,thedischargecapacityremains96.1%.Furthermore,Li2FeSiO4/Cnanoparticlesalsoexhibitanexcellentratecapabilitywithacapacityofabout80mAhg?1at10C.

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