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7756714 
Journal Article 
A study of electrochemical kinetics of lithium ion in organic electrolytes 
Lee, SI; Jung, UH; Kim, YS; Kim, MH; Ahn, DJ; Chun, HS 
2002 
1 
Korean Journal of Chemical Engineering
ISSN: 0256-1115
EISSN: 1975-7220 
Springer New York 
SEOUL 
19 
4 
638-644 
English 
WOS:000177226300019 
Limiting current densities equivalent to the transport-controlling step oflithium ions in organic electrolytes were measured by using a rotating disk electrode (RDE). The diffusion coefficients of lithium ion in the electrolyte of PC/LiClO4, EC : DEC/LiPF6 and EC: DMC/LiPF6 were determined by the limiting current density data according to the Levich equation. The diffusion coefficients increased in the order of PC/LiClO 4<EC: DEC/LiPF6<EC : DMC/ LiPF6 with respect to molar concentration oflithium salt. The maximum value of diffusivity was 1.39× 10-5cm2/s for 1 M LiPF6 in EC: DMC=1:1. Exchange current densities and transfer coefficients of each electrolyte were determined according to the Butler-Volmer equation. 
lithium ion batteries; RDE; electrolyte; limiting current density; diffusion coefficient