Mechanochemical/Solvothermal Synthesis of LiMn2O4 as a Cathode Material for Rechargeable Batteries

Osami Abe; S. Sato; S. Mitachi; T. Yamada

doi:10.4028/www.scientific.net/KEM.617.81

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 617Mechanochemical/Solvothermal Synthesis of LiMn2O4...

Mechanochemical/Solvothermal Synthesis of LiMn₂O₄ as a Cathode Material for Rechargeable Batteries

Abstract:

Highly-crystallized fine LiMn₂O₄ powders have been synthesized by a combination of the mechanochemical (MC) and solvothermal (ST) treatments of LiOH and MnO₂ in Acetone. The MC product is amorphous, but, shows the formation of Mn-O-Li bond. The ST post treatment promotes the nucleation of LiMn₂O₄ by the chemical reduction of Mn⁴⁺ to Mn³⁺. The estimated chemical compositions are LiMn (III)_0.11Mn (IV)_1.89O_4.45 (MC) and LiMn (III)_0.76Mn (IV)_1.12O_3.88 (MC/ST). The MC/ST powder crystallized at 800°C indicates the cell capacity of 119mA.h.g^-1. The dilution of Acetone with Tetrahydrofuran is effective to reduce the particle size. The MC/ST product using the diluent shows the fine particle size of 150nm and the excellent cell capacity of 134mA.h.g^-1.

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Periodical:

Key Engineering Materials (Volume 617)

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81-84

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.617.81

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Online since:

June 2014

Authors:

Osami Abe*, S. Sato, S. Mitachi, T. Yamada

Keywords:

Capacity, Crystallization, Lithium Mangamate, Mechanochemistry, Particle Size, Solvothermal Process, Synthesis

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References

[1] I. Taniguchi and Z. Bakenov, Spray pyrolysis synthesis of nanostructured LiFexMn2-xO4 cathode materials for lithium-ion batteries, Powder Technology, 159 (2005) 55-62.

DOI: 10.1016/j.powtec.2005.07.002

Google Scholar

[2] S. Oh, S. Jeon, W. Cho, C. Kim and B. Cho, Synthesis and characterization of the metal-doped high-voltage spinel LiNi0. 5Mn1. 5O4 by mechanochemical process, J. Alloys and Compounds, 452 (2008) 389-96.

DOI: 10.1016/j.jallcom.2006.10.153

Google Scholar

[3] O. Abe, T. Sano, Y. Yoshizaki and Y. Hosono, Mechanosynthesis of LiMn2O4 as a Cathode Material for Lithium Batteries, Trans. Mater. Soc., Jpn., 33 (2008) 941-44.

Google Scholar

[4] O. Abe and T. Sano, Mechanochemical Reduction of Manganese Dioxide by Grinding in Organic Vapors, J. Ceram. Soc., Jpn., 117 (2009) 999-1003.

DOI: 10.2109/jcersj2.117.999

Google Scholar