Charge-discharge properties of surface-modified carbon by resin coating in Li-ion battery

J. S. Kim; W. Y. Yoon; Kwang Soo Yoo; G. S. Park; C. W. Lee; Y. Murakami; D. Shindo

doi:10.1016/S0378-7753(01)00909-0

Charge-discharge properties of surface-modified carbon by resin coating in Li-ion battery

J. S. Kim, W. Y. Yoon, Kwang Soo Yoo, G. S. Park, C. W. Lee, Y. Murakami, D. Shindo

Department of Materials Science and Engineering

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

26 Scopus citations

Abstract

The effect of an epoxy resin coating on the electrochemical performance of Li-ion batteries is investigated. Mesocarbon microbeads (MCMB), which constitute a promising carbon anode material for rechargeable Li-ion batteries is used as a starting carbon material. The surface coating of the MCMB is carried out by refluxing in a dilute H₂SO₄ solution and mixing in the epoxy resin-dissolved tetrahydrofuran (THF) solution. After heat treatment at 1000-1300 °C, the resin coating layer on the MCMB is converted to an amorphous phase which is identified by means of a high resolution transmission electron microscope (HRTEM) and a electron energy loss spectroscopy (EELS) analyses. The Brunauer-Emmett-Teller (BET) surface area of MCMB is increased by the formation of the amorphous epoxy resin coating layer. The electrochemical performance of the MCMB, such as the charge-discharge capacity and cycleability, is enhanced by the surface modification through epoxy resin coating. The reasons for the improvement of electrochemical performance are discussed in terms of the results from HRTEM observation, EELS analysis, and cyclicvoltammetry.

Original language	English
Pages (from-to)	175-180
Number of pages	6
Journal	Journal of Power Sources
Volume	104
Issue number	2
DOIs	https://doi.org/10.1016/S0378-7753(01)00909-0
State	Published - 15 Feb 2002

Keywords

Carbon electrode
Electrochemical reaction
Li-ion battery
Surface modification

UN SDGs

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

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10.1016/S0378-7753(01)00909-0

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title = "Charge-discharge properties of surface-modified carbon by resin coating in Li-ion battery",

abstract = "The effect of an epoxy resin coating on the electrochemical performance of Li-ion batteries is investigated. Mesocarbon microbeads (MCMB), which constitute a promising carbon anode material for rechargeable Li-ion batteries is used as a starting carbon material. The surface coating of the MCMB is carried out by refluxing in a dilute H2SO4 solution and mixing in the epoxy resin-dissolved tetrahydrofuran (THF) solution. After heat treatment at 1000-1300 °C, the resin coating layer on the MCMB is converted to an amorphous phase which is identified by means of a high resolution transmission electron microscope (HRTEM) and a electron energy loss spectroscopy (EELS) analyses. The Brunauer-Emmett-Teller (BET) surface area of MCMB is increased by the formation of the amorphous epoxy resin coating layer. The electrochemical performance of the MCMB, such as the charge-discharge capacity and cycleability, is enhanced by the surface modification through epoxy resin coating. The reasons for the improvement of electrochemical performance are discussed in terms of the results from HRTEM observation, EELS analysis, and cyclicvoltammetry.",

keywords = "Carbon electrode, Electrochemical reaction, Li-ion battery, Surface modification",

author = "Kim, {J. S.} and Yoon, {W. Y.} and Yoo, {Kwang Soo} and Park, {G. S.} and Lee, {C. W.} and Y. Murakami and D. Shindo",

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T1 - Charge-discharge properties of surface-modified carbon by resin coating in Li-ion battery

AU - Kim, J. S.

AU - Yoon, W. Y.

AU - Yoo, Kwang Soo

AU - Park, G. S.

AU - Lee, C. W.

AU - Murakami, Y.

AU - Shindo, D.

PY - 2002/2/15

Y1 - 2002/2/15

N2 - The effect of an epoxy resin coating on the electrochemical performance of Li-ion batteries is investigated. Mesocarbon microbeads (MCMB), which constitute a promising carbon anode material for rechargeable Li-ion batteries is used as a starting carbon material. The surface coating of the MCMB is carried out by refluxing in a dilute H2SO4 solution and mixing in the epoxy resin-dissolved tetrahydrofuran (THF) solution. After heat treatment at 1000-1300 °C, the resin coating layer on the MCMB is converted to an amorphous phase which is identified by means of a high resolution transmission electron microscope (HRTEM) and a electron energy loss spectroscopy (EELS) analyses. The Brunauer-Emmett-Teller (BET) surface area of MCMB is increased by the formation of the amorphous epoxy resin coating layer. The electrochemical performance of the MCMB, such as the charge-discharge capacity and cycleability, is enhanced by the surface modification through epoxy resin coating. The reasons for the improvement of electrochemical performance are discussed in terms of the results from HRTEM observation, EELS analysis, and cyclicvoltammetry.

AB - The effect of an epoxy resin coating on the electrochemical performance of Li-ion batteries is investigated. Mesocarbon microbeads (MCMB), which constitute a promising carbon anode material for rechargeable Li-ion batteries is used as a starting carbon material. The surface coating of the MCMB is carried out by refluxing in a dilute H2SO4 solution and mixing in the epoxy resin-dissolved tetrahydrofuran (THF) solution. After heat treatment at 1000-1300 °C, the resin coating layer on the MCMB is converted to an amorphous phase which is identified by means of a high resolution transmission electron microscope (HRTEM) and a electron energy loss spectroscopy (EELS) analyses. The Brunauer-Emmett-Teller (BET) surface area of MCMB is increased by the formation of the amorphous epoxy resin coating layer. The electrochemical performance of the MCMB, such as the charge-discharge capacity and cycleability, is enhanced by the surface modification through epoxy resin coating. The reasons for the improvement of electrochemical performance are discussed in terms of the results from HRTEM observation, EELS analysis, and cyclicvoltammetry.

KW - Carbon electrode

KW - Electrochemical reaction

KW - Li-ion battery

KW - Surface modification

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JO - Journal of Power Sources

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ER -

Charge-discharge properties of surface-modified carbon by resin coating in Li-ion battery

Abstract

Keywords

UN SDGs

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