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

Xiao, Xiaoling and Lu, Jun and Li, Yadong (2010) LiMn2O4 microspheres: Synthesis, characterization and use as a cathode in lithium ion batteries. Nano Research, 3 (10). pp. 733-737.

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Official URL: http://www.springerlink.com/content/n1u756rq376315...

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.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:9875
Deposited By:JNCASR
Deposited On:26 Nov 2010 05:40
Last Modified:26 Nov 2010 05:40

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