Facile synthesis of nano-Li 4Ti 5O 12 for high-rate Li-ion battery anodes

Yun Ho Jin, Kyung Mi Min, Hyun Woo Shim, Seung Deok Seo, In Sung Hwang, Kyung Soo Park, Dong-Wan Kim

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

One of the most promising anode materials for Li-ion batteries, Li 4Ti 5O 12, has attracted attention because it is a zero-strain Li insertion host having a stable insertion potential. In this study, we suggest two different synthetic processes to prepare Li 4Ti 5O 12 using anatase TiO 2 nanoprecursors. TiO 2 powders, which have extraordinarily large surface areas of more than 250 m 2 g -1, were initially prepared through the urea-forced hydrolysis/precipitation route below 100°C. For the synthesis of Li 4Ti 5O 12, LiOH and Li 2CO 3 were added to TiO2 solutions prepared in water and ethanol media, respectively. The powders were subsequently dried and calcined at various temperatures. The phase and morphological transitions from TiO 2 to Li 4Ti 5O 12 were characterized using X-ray powder diffraction and transmission electron microscopy. The electrochemical performance of nanosized Li 4Ti 5O 12 was evaluated in detail by cyclic voltammetry and galvanostatic cycling. Furthermore, the high-rate performance and long-term cycle stability of Li 4Ti 5O 12 anodes for use in Li-ion batteries were discussed.

Original languageEnglish
Article number10
Pages (from-to)1-13
Number of pages13
JournalNanoscale Research Letters
Volume7
DOIs
Publication statusPublished - 2012 Jan 25
Externally publishedYes

Fingerprint

Powders
electric batteries
Anodes
anodes
insertion
synthesis
Urea
X ray powder diffraction
Titanium dioxide
Cyclic voltammetry
Hydrolysis
ions
cycles
Ethanol
Transmission electron microscopy
ureas
anatase
hydrolysis
Water
ethyl alcohol

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Jin, Y. H., Min, K. M., Shim, H. W., Seo, S. D., Hwang, I. S., Park, K. S., & Kim, D-W. (2012). Facile synthesis of nano-Li 4Ti 5O 12 for high-rate Li-ion battery anodes. Nanoscale Research Letters, 7, 1-13. [10]. https://doi.org/10.1186/1556-276X-7-10

Facile synthesis of nano-Li 4Ti 5O 12 for high-rate Li-ion battery anodes. / Jin, Yun Ho; Min, Kyung Mi; Shim, Hyun Woo; Seo, Seung Deok; Hwang, In Sung; Park, Kyung Soo; Kim, Dong-Wan.

In: Nanoscale Research Letters, Vol. 7, 10, 25.01.2012, p. 1-13.

Research output: Contribution to journalArticle

Jin, Yun Ho ; Min, Kyung Mi ; Shim, Hyun Woo ; Seo, Seung Deok ; Hwang, In Sung ; Park, Kyung Soo ; Kim, Dong-Wan. / Facile synthesis of nano-Li 4Ti 5O 12 for high-rate Li-ion battery anodes. In: Nanoscale Research Letters. 2012 ; Vol. 7. pp. 1-13.
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