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dc.contributor.authorZhuangquanchao
dc.contributor.author庄全超
dc.contributor.authorChenzuofeng
dc.contributor.author陈作锋
dc.contributor.authorDongquanfeng
dc.contributor.author董全峰
dc.contributor.authorJiangyanxia
dc.contributor.author姜艳霞
dc.contributor.authorZhouzhiyou
dc.contributor.author周志有
dc.contributor.authorSunshigang
dc.contributor.author孙世刚
dc.date.accessioned2011-10-18T14:45:19Z
dc.date.available2011-10-18T14:45:19Z
dc.date.issued2005
dc.identifier.citationCHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2005,26(11):2073-2075zh_CN
dc.identifier.issn0251-0790
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/10942
dc.description.abstractElectrochemical performance of graphite electrode cycled vs. Li in 1 mol/L LiPF6-EC/DEC/DMC (1: 1: 1, volume ratio) electrolyte solution, which contains different concentrations of methanol, was investigated by cyclic voltammetry and electrochemical impedance spectroscopy( EIS) in the process of first lithiation. It was demonstrated that methanol contaminant caused the deterioration of the electrochemical performance of graphite electrodes, which depends markedly on the concentration of methanol. Based on the experimental results and analysis, a mechanism of the deterioration of the electrochemical performance of graphite electrode caused by methanol contaminant was proposed. The methanol was reduced to lithium methoxide, that deposited on graphite electrode surface to form initial SEI ( solid electrolyte interphase) near 2.0 V, which resulted in ethylene carbonate excess decomposition and poor passive ability of the SEI ultimately formed.zh_CN
dc.language.isozhzh_CN
dc.publisherHIGHER EDUCATION PRESSzh_CN
dc.subjectlithium-ion batterieszh_CN
dc.subjectgraphite electrodezh_CN
dc.subjectelectrolytezh_CN
dc.subjectmethanol contaminantzh_CN
dc.subjectEISzh_CN
dc.titleEffects of methanol contaminant in electrolyte on performance of graphite electrodes for Li-ion batteries studied via electrochemical impedance spectroscopyzh_CN
dc.typeArticlezh_CN


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