Research on carbon-coated Li4Ti5O12 material for lithium ion batteries

Ju Bin Kim; Dong Jin Kim; Kyung Yoon Chung; Dongjin Byun; Byung Won Cho

doi:10.1088/0031-8949/2010/T139/014026

Research on carbon-coated Li₄Ti₅O₁₂ material for lithium ion batteries

Ju Bin Kim, Dong Jin Kim, Kyung Yoon Chung, Dongjin Byun, Byung Won Cho

Department of Materials Science and Engineering

Research output: Contribution to journal › Conference article › peer-review

24 Citations (Scopus)

Abstract

Carbon-coated Li₄Ti₅O₁₂ anode materials for the lithium ion battery were synthesized by using sucrose to improve the electrochemical properties of Li₄Ti₅O₁₂, and the carbon content was then tested. X-ray diffraction (XRD) showed that the coating of carbon does not influence the formation of Li₄Ti ₅O₁₂. Transmission electron microscopy (TEM) and Raman spectroscopy confirmed that carbon content exists on the surface of Li ₄Ti₅O₁₂. Electronic conductivity measurement indicated that the electronic conductivity of the carbon-coated Li ₄Ti₅O₁₂ material was 3.8×10^-4 S cm^-1, which is higher than that for the primary Li ₄Ti₅O₁₂ material (4.3×10^-7 S cm^-1). CV results show that carbon-coated Li₄Ti ₅O₁₂ shows a larger diffusion coefficient. Charge and discharge tests show that rate capability and cycle performance were improved because of the carbon coating.

Original language	English
Article number	014026
Journal	Physica Scripta
Volume	T139
DOIs	https://doi.org/10.1088/0031-8949/2010/T139/014026
Publication status	Published - 2010
Event	3rd International Symposium on Functional Materials 2009, ISFM 2009 - Jinju, Korea, Republic of Duration: 2009 Jun 15 → 2009 Jun 18

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Mathematical Physics
Condensed Matter Physics

UN SDGs

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

Access to Document

10.1088/0031-8949/2010/T139/014026

Cite this

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title = "Research on carbon-coated Li4Ti5O12 material for lithium ion batteries",

abstract = "Carbon-coated Li4Ti5O12 anode materials for the lithium ion battery were synthesized by using sucrose to improve the electrochemical properties of Li4Ti5O12, and the carbon content was then tested. X-ray diffraction (XRD) showed that the coating of carbon does not influence the formation of Li4Ti 5O12. Transmission electron microscopy (TEM) and Raman spectroscopy confirmed that carbon content exists on the surface of Li 4Ti5O12. Electronic conductivity measurement indicated that the electronic conductivity of the carbon-coated Li 4Ti5O12 material was 3.8×10-4 S cm-1, which is higher than that for the primary Li 4Ti5O12 material (4.3×10-7 S cm-1). CV results show that carbon-coated Li4Ti 5O12 shows a larger diffusion coefficient. Charge and discharge tests show that rate capability and cycle performance were improved because of the carbon coating.",

author = "Kim, {Ju Bin} and Kim, {Dong Jin} and Chung, {Kyung Yoon} and Dongjin Byun and Cho, {Byung Won}",

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T1 - Research on carbon-coated Li4Ti5O12 material for lithium ion batteries

AU - Kim, Ju Bin

AU - Kim, Dong Jin

AU - Chung, Kyung Yoon

AU - Byun, Dongjin

AU - Cho, Byung Won

PY - 2010

Y1 - 2010

N2 - Carbon-coated Li4Ti5O12 anode materials for the lithium ion battery were synthesized by using sucrose to improve the electrochemical properties of Li4Ti5O12, and the carbon content was then tested. X-ray diffraction (XRD) showed that the coating of carbon does not influence the formation of Li4Ti 5O12. Transmission electron microscopy (TEM) and Raman spectroscopy confirmed that carbon content exists on the surface of Li 4Ti5O12. Electronic conductivity measurement indicated that the electronic conductivity of the carbon-coated Li 4Ti5O12 material was 3.8×10-4 S cm-1, which is higher than that for the primary Li 4Ti5O12 material (4.3×10-7 S cm-1). CV results show that carbon-coated Li4Ti 5O12 shows a larger diffusion coefficient. Charge and discharge tests show that rate capability and cycle performance were improved because of the carbon coating.

AB - Carbon-coated Li4Ti5O12 anode materials for the lithium ion battery were synthesized by using sucrose to improve the electrochemical properties of Li4Ti5O12, and the carbon content was then tested. X-ray diffraction (XRD) showed that the coating of carbon does not influence the formation of Li4Ti 5O12. Transmission electron microscopy (TEM) and Raman spectroscopy confirmed that carbon content exists on the surface of Li 4Ti5O12. Electronic conductivity measurement indicated that the electronic conductivity of the carbon-coated Li 4Ti5O12 material was 3.8×10-4 S cm-1, which is higher than that for the primary Li 4Ti5O12 material (4.3×10-7 S cm-1). CV results show that carbon-coated Li4Ti 5O12 shows a larger diffusion coefficient. Charge and discharge tests show that rate capability and cycle performance were improved because of the carbon coating.

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