Research on carbon-coated Li 4Ti 5O 12 material for lithium ion batteries

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

23 Citations (Scopus)

Abstract

Carbon-coated Li 4Ti 5O 12 anode materials for the lithium ion battery were synthesized by using sucrose to improve the electrochemical properties of Li 4Ti 5O 12, and the carbon content was then tested. X-ray diffraction (XRD) showed that the coating of carbon does not influence the formation of Li 4Ti 5O 12. Transmission electron microscopy (TEM) and Raman spectroscopy confirmed that carbon content exists on the surface of Li 4Ti 5O 12. Electronic conductivity measurement indicated that the electronic conductivity of the carbon-coated Li 4Ti 5O 12 material was 3.8×10 -4 S cm -1, which is higher than that for the primary Li 4Ti 5O 12 material (4.3×10 -7 S cm -1). CV results show that carbon-coated Li 4Ti 5O 12 shows a larger diffusion coefficient. Charge and discharge tests show that rate capability and cycle performance were improved because of the carbon coating.

Original languageEnglish
Title of host publicationPhysica Scripta T
VolumeT139
DOIs
Publication statusPublished - 2010
Event3rd International Symposium on Functional Materials 2009, ISFM 2009 - Jinju, Korea, Republic of
Duration: 2009 Jun 152009 Jun 18

Other

Other3rd International Symposium on Functional Materials 2009, ISFM 2009
CountryKorea, Republic of
CityJinju
Period09/6/1509/6/18

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Kim, J. B., Kim, D. J., Chung, K. Y., Byun, D. J., & Cho, B. W. (2010). Research on carbon-coated Li 4Ti 5O 12 material for lithium ion batteries In Physica Scripta T (Vol. T139). [014026] https://doi.org/10.1088/0031-8949/2010/T139/014026