Spinel LiMn 2O 4 nanorods as lithium ion battery cathodes

Do Kyung Kim, P. Muralidharan, Hyun Wook Lee, Riccardo Ruffo, Yuan Yang, Candace Chan, Hailin Peng, Robert A. Huggins, Yi Cui

Research output: Contribution to journalArticle

462 Citations (Scopus)

Abstract

Spinel LiMn 2O 4 is a low-cost, environmentally friendly, and highly abundant material for Li-ion battery cathodes. Here, we report the hydrothermal synthesis of single-crystalline β-MnO 2 nanorods and their chemical conversion into free-standing single-crystalline LiMn 2O 4 nanorods using a simple solid-state reaction. The LiMn 2O 4 nanorods have an average diameter of 130 nm and length of 1.2 μm. Galvanostatic battery testing showed that LiMn 2O 4 nanorods have a high charge storage capacity at high power rates compared with commercially available powders. More than 85% of the initial charge storage capacity was maintained for over 100 cycles. The structural transformation studies showed that the Li ions intercalated into the cubic phase of the LiMn 2O 4 with a small change of lattice parameter, followed by the coexistence of two nearly identical cubic phases in the potential range of 3.5 to 4.3V.

Original languageEnglish (US)
Pages (from-to)3948-3952
Number of pages5
JournalNano Letters
Volume8
Issue number11
DOIs
StatePublished - Nov 2008
Externally publishedYes

Fingerprint

Nanorods
nanorods
spinel
electric batteries
Cathodes
lithium
cathodes
ions
Crystalline materials
Hydrothermal synthesis
Solid state reactions
Powders
Lattice constants
lattice parameters
Ions
solid state
cycles
spinell
Lithium-ion batteries
Testing

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanical Engineering

Cite this

Kim, D. K., Muralidharan, P., Lee, H. W., Ruffo, R., Yang, Y., Chan, C., ... Cui, Y. (2008). Spinel LiMn 2O 4 nanorods as lithium ion battery cathodes. Nano Letters, 8(11), 3948-3952. https://doi.org/10.1021/nl8024328

Spinel LiMn 2O 4 nanorods as lithium ion battery cathodes. / Kim, Do Kyung; Muralidharan, P.; Lee, Hyun Wook; Ruffo, Riccardo; Yang, Yuan; Chan, Candace; Peng, Hailin; Huggins, Robert A.; Cui, Yi.

In: Nano Letters, Vol. 8, No. 11, 11.2008, p. 3948-3952.

Research output: Contribution to journalArticle

Kim, DK, Muralidharan, P, Lee, HW, Ruffo, R, Yang, Y, Chan, C, Peng, H, Huggins, RA & Cui, Y 2008, 'Spinel LiMn 2O 4 nanorods as lithium ion battery cathodes', Nano Letters, vol. 8, no. 11, pp. 3948-3952. https://doi.org/10.1021/nl8024328
Kim DK, Muralidharan P, Lee HW, Ruffo R, Yang Y, Chan C et al. Spinel LiMn 2O 4 nanorods as lithium ion battery cathodes. Nano Letters. 2008 Nov;8(11):3948-3952. https://doi.org/10.1021/nl8024328
Kim, Do Kyung ; Muralidharan, P. ; Lee, Hyun Wook ; Ruffo, Riccardo ; Yang, Yuan ; Chan, Candace ; Peng, Hailin ; Huggins, Robert A. ; Cui, Yi. / Spinel LiMn 2O 4 nanorods as lithium ion battery cathodes. In: Nano Letters. 2008 ; Vol. 8, No. 11. pp. 3948-3952.
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