Title

Synthesis of spinel LiMn2O4 nanoparticles through one-step hydrothermal reaction

RIS ID

19945

Publication Details

Jiang, C., Dou, S. X., Liu, H. K., Ichihara, M. & Zhou, H. (2007). Synthesis of spinel LiMn2O4 nanoparticles through one-step hydrothermal reaction. Journal of Power Sources, 172 (1), 410-415.

Abstract

Phase pure spinel LiMn2O4 nanoparticles can be directly synthesized by one-step hydrothermal reaction of a3-MnO2 with LiOH in an initial Li/Mn ratio of 1 at 200 ~aDegreesC. The reaction might involve a redox reaction between Mn4+ and OH, and the formation of LiMn2O4 at the same time under the proposed hydrothermal conditions. This hydrothermal process is simple since only a3-MnO2 powders are used as the Mn source, whereas without use of any oxidants, reductants, or low valence Mn source. The electrochemical performance of the as-synthesized LiMn2O4 nanoparticles towards Li+ insertion/extraction was examined. Rather good capacity and cycle performance, and an especially excellent high rate capability, were observed for the sample that was hydrothermally reacted for 3 days.

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Link to publisher version (DOI)

http://dx.doi.org/10.1016/j.jpowsour.2007.07.039