A study of electrochemical kinetics of lithium ion in organic electrolytes

Shung Ik Lee; Un Ho Jung; Yun Sung Kim; Myung Hwan Kim; Dong June Ahn; Hai Soo Chun

doi:10.1007/BF02699310

A study of electrochemical kinetics of lithium ion in organic electrolytes

Shung Ik Lee, Un Ho Jung, Yun Sung Kim, Myung Hwan Kim, Dong June Ahn, Hai Soo Chun

KU-KIST Graduate School of Converging Science and Technology

Research output: Contribution to journal › Article › peer-review

65 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	638-644
Number of pages	7
Journal	Korean Journal of Chemical Engineering
Volume	19
Issue number	4
DOIs	https://doi.org/10.1007/BF02699310
Publication status	Published - 2002 Jul

Keywords

Diffusion coefficient
Electrolyte
Limiting current density
Lithium ion batteries
RDE

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1007/BF02699310

Cite this

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title = "A study of electrochemical kinetics of lithium ion in organic electrolytes",

abstract = "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.",

keywords = "Diffusion coefficient, Electrolyte, Limiting current density, Lithium ion batteries, RDE",

author = "Lee, {Shung Ik} and Jung, {Un Ho} and Kim, {Yun Sung} and Kim, {Myung Hwan} and Ahn, {Dong June} and Chun, {Hai Soo}",

year = "2002",

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doi = "10.1007/BF02699310",

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T1 - A study of electrochemical kinetics of lithium ion in organic electrolytes

AU - Lee, Shung Ik

AU - Jung, Un Ho

AU - Kim, Yun Sung

AU - Kim, Myung Hwan

AU - Ahn, Dong June

AU - Chun, Hai Soo

PY - 2002/7

Y1 - 2002/7

N2 - 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.

AB - 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.

KW - Diffusion coefficient

KW - Electrolyte

KW - Limiting current density

KW - Lithium ion batteries

KW - RDE

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A study of electrochemical kinetics of lithium ion in organic electrolytes

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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