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	Effects of temperature on the intercalation-deintercalation process of lithium ion in LiCOO2
	Zhuang, Quan-Chao ; Zhuang QC(庄全超) ; Wei, Guo-Zhen ; Wei GZ(魏国祯) ; Xu, Jin-Mei ; Xu JM(许金梅) ; Fan, Xiao-Yong ; Fan XY(樊小勇) ; Dong, Quan-Feng ; Dong QF(董全峰) ; Sun, Shi-Gang ; Sun SG(孙世刚)
	2008
关键词	lithium-ion battery LiCoO2 SEI film electronic resistance charge transfer reaction resistance
英文摘要	The temperature dependent properties of the impedance spectral characters, the electronic resistance, the resistances of the SEI (solid electrolyte interphase) film as well as the charge transfer reaction of the LiCoO2 electrode in 1 mol/L LiPF6-EC (ethylene carbonate); DEC (diethyl carbonate):DMC (dimethyl carbonate) and I mol/L LiPF6-PC (propylene carbonate):DMC+5% VC (vinylene carbonate) electrolyte solutions were studied and reported. The temperature was varied from 0 to 30 degrees C. The studies of electrochemical impedance spectroscopy (EIS) revealed that, the common EIS features' of the LiCoO2 electrode in the I mol/L LiPF6-EC:DEC:DMC and I mol/L LiPF6-PC:DMC+5% VC electrolyte solutions were related to the temperature, and a straight line reflecting solid state Li ion diffusion in the bulk of active mass appeared at 10 and 20 V, respectively. In I mol/L LiPF6-EC:DEC:DMC and I mol/L LiPF6-PC:DMC+5% VC electrolyte solutions, the energy barriers for the ion jump relating to migration of lithium ions through the SEI film of the LiCoO2 electrode were determined to be 37.74 and 26.55 kJ/mol, the thermal active energy of the electronic conductivities to be 39.08 and 53.81 kJ/mol, and the intercalation-deintercalation reaction active energies to be 68.97 and 73.73 kJ/mol, respectively.
语种	英语
出版者	SCIENCE CHINA PRESS
内容类型	期刊论文
源URL	[http://dx.doi.org/doi:CNKI:SUN:HXXB.0.2008-07-007]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Zhuang, Quan-Chao,Zhuang QC,Wei, Guo-Zhen,et al. Effects of temperature on the intercalation-deintercalation process of lithium ion in LiCOO2[J],2008.
APA	Zhuang, Quan-Chao.,庄全超.,Wei, Guo-Zhen.,魏国祯.,Xu, Jin-Mei.,...&孙世刚.(2008).Effects of temperature on the intercalation-deintercalation process of lithium ion in LiCOO2..
MLA	Zhuang, Quan-Chao,et al."Effects of temperature on the intercalation-deintercalation process of lithium ion in LiCOO2".(2008).

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