Nano Research

, Volume 3, Issue 10, pp 733–737

LiMn2O4 microspheres: Synthesis, characterization and use as a cathode in lithium ion batteries

Open AccessResearch Article

DOI: 10.1007/s12274-010-0037-1

Cite this article as:
Xiao, X., Lu, J. & Li, Y. Nano Res. (2010) 3: 733. doi:10.1007/s12274-010-0037-1

Abstract

Solid and hollow microspheres of LiMn2O4 have been synthesized by lithiating MnCO3 solid microspheres and MnO2 hollow microspheres, respectively. The LiMn2O4 solid microspheres and hollow microspheres had a similar size of about 1.5 ?m, and the shell thickness of the hollow microspheres was only 100 nm. When used as a cathode material in lithium ion batteries, the hollow microspheres exhibited better rate capability than the solid microspheres. However, the tap density of the LiMn2O4 solid microspheres (1.0 g/cm3) was about four times that of the hollow microspheres (0.27 g/cm3). The results show that controlling the particle size of LiMn2O4 is very important in terms of its practical application as a cathode material, and LiMn2O4 with moderate particle size may afford acceptable values of both rate capability and tap density.

Keywords

CathodeLiMn2O4 microspherestap densityrate capabilityparticle size
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Copyright information

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  1. 1.Department of Chemistry and State Key Laboratory of New Ceramics and Fine ProcessingTsinghua UniversityBeijingChina