Kinetic study on LiFePO4-positive electrode material of lithium-ion battery
锂离子电池正极材料LiFePO4的动力学研究
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标签：
Positive electrode material –
LiFePO4 –
Kinetics –
Electrochemical impedance spectroscopy –
Lithium
ai标签:
出版日期:2011
作者单位:1.SchoolofChemistryandChemicalEngineering,AnhuiUniversityofTechnology,59HudongRoad,Maanshan,Anhui243002,People鈥檚RepublicofChina2.KeyLaboratoryofFunctionalInorganicMaterialChemistry(HeilongjiangUniversity),MinistryofEducation,HeilongjiangUniversity,Harbin,150080People鈥檚RepublicofChina3.FacultyofMaterialsScienceandChemicalEngineering,NingboUniversity,Ningbo,Zhejiang315211,People鈥檚RepublicofChina杂志名称:Ionics
卷号:17
期数:5
刊号:0947-7047
出版日期:2011
简介:LiFePO4-positiveelectrodematerialwassuccessfullysynthesizedbyasolid-statemethod,andtheeffectofstoragetemperaturesonkineticsoflithium-ioninsertionforLiFePO4-positiveelectrodematerialwasinvestigatedbyelectrochemicalimpedancespectroscopy.Thecharge-transferresistanceofLiFePO4electrodedecreaseswithincreasingthestoragetemperatures.Thissuggeststhatithasahighelectrochemicalactivityathightemperature.Thediffusioncoefficientoflithiumionisgreatlyincreasedwithincreasingthestoragetemperatures,indicatingthatthekineticsofLi+andelectrontransferintotheelectrodesweremuchfastathighstoragetemperature.
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