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dc.contributor.authorQiu, Xiang-Yun( China Univ Min & Technol, Sch Mat Sci & Engn)zh_CN
dc.contributor.authorZhuang, Quan-Chao( China Univ Min & Technol, Sch Mat Sci & Engn)zh_CN
dc.contributor.authorWang, Hong-Ming( China Univ Min & Technol, Sch Mat Sci & Engn)zh_CN
dc.contributor.authorCui, Yong-Li( China Univ Min & Technol, Sch Mat Sci & Engn)zh_CN
dc.contributor.authorFang, Liang( China Univ Min & Technol, Sch Mat Sci & Engn)zh_CN
dc.contributor.authorSun, Shi-Gangzh_CN
dc.contributor.author孙世刚zh_CN
dc.date.accessioned2011-04-26T08:03:16Z
dc.date.available2011-04-26T08:03:16Z
dc.date.issued2010-06zh_CN
dc.identifier.citationACTA PHYSICO-CHIMICA SINICA,2010,26(6):1493-1498zh_CN
dc.identifier.issn1000-6818zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/2131
dc.description.abstractVariations in the impedance spectra of the commercially available spinel LiMn2O4 electrode from -20 to 20 degrees C were investigated by electrochemical impedance spectroscopy (EIS) in 1 mol center dot L-1 LiPF6-EC (ethylene carbonate). DEC (diethyl carbonate). DMC (dimethyl carbonate), 1 mol center dot L-1 LiPF6-EC:DEC:EMC (ethyl methyl carbonate) and 1 mol center dot L-1 LiPF6-EC. DMC electrolyte solutions. We found that the impedance spectral characteristics of the spinel LiMn2O4 electrode was strongly influenced by temperature and only slightly influenced by the electrolyte composition. However, the electronic resistance and the resistance of the SEI filmas well as the charge transfer reaction resistance of the spinel LiMn2O4 electrode were strongly influenced by the electrolyte composition. In 1 mol center dot L-1 LiPF6:EC:DEC. DMC, 1 mol center dot L-1 LiPF6-EC:DEC:EMC and 1 mol center dot L-1 LiPF6-EC:DMC electrolyte solutions, the energy barriers for the ion jump relating to the migration of lithium ions through the solid electrolyte interphase (SEI) film of the spinel LiMn2O4 electrode were determined to be 7.60, 16.40, and 18.40 kJ center dot mol(-1). The thermal active energies of the electronic conductivities were 44.77, 35.47, and 68.06 kJ center dot mol(-1) and the intercalation. deintercalation reaction active energies were 52.19, 46.19, and 69.86 kJ center dot mol- 1, respectively.zh_CN
dc.language.isoenzh_CN
dc.publisherPEKING UNIV PRESSzh_CN
dc.subjectLithium-ion batteryzh_CN
dc.subjectSpinel LiMn2O4zh_CN
dc.subjectSolid electrolyte interphase filmzh_CN
dc.subjectElectronic resistancezh_CN
dc.subjectCharge transfer reaction resistancezh_CN
dc.titleIn situ ESR Study of Hydroxyl Radical Generation on a Boron Doped Diamond Film Electrode Surfacezh_CN
dc.typeArticlezh_CN


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