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Synthesis, electrochemical, and microstructural study of precursor-derived LiMn2O4 powders

Published online by Cambridge University Press:  31 January 2011

Yumi H. Ikuhara ,
Yuji Iwamoto ,
Koichi Kikuta  and
Shin-ichi Hirano
Yumi H. Ikuhara*
Affiliation:
Fine Ceramics Research Association, Synergy Ceramics Laboratory, 2-4-1, Mutsuno, Atsuta-ku, Nagoya, 456-8587, Japan
Yuji Iwamoto
Affiliation:
Fine Ceramics Research Association, Synergy Ceramics Laboratory, 2-4-1, Mutsuno, Atsuta-ku, Nagoya, 456-8587, Japan
Koichi Kikuta
Affiliation:
Graduate School of Engineering, Nagoya University, 1, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
Shin-ichi Hirano
Affiliation:
Graduate School of Engineering, Nagoya University, 1, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
*
a) Address all correspondence to this author. Present address: Japan Fine Ceramics Center, Research and Development Laboratory, 2-4-1 Mutsuno, Atsuta-ku, Nagoya, 456-8587, Japan.
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Abstract

Stable and homogeneous alkoxide precursor solutions of lithium ethoxyethoxide and manganese ethoxyethoxide in 2-ethoxyethanol were synthesized by ligand exchange reaction of lithium isopropoxide and manganese 2-ethoxide, respectively, with 2-ethoxyethanol. [Li–Mn–O] precursor solution was prepared by mixing these modified alkoxide precursor solutions. LiMn2O4 powders were successfully synthesized by pyrolysis of the [Li–Mn–O] precursor powder in O2 temperature as low as 200 °C. The nanocrystalline LiMn2O4 powders 20–50 mm in diameter after heat treatment up to 700 °C consisted of the ordered (111) plane and performed with good cyclability as the cathode materials for Li secondary batteries.

Type
Articles
Information
Journal of Materials Research , Volume 14 , Issue 7 , July 1999 , pp. 3102 - 3110
Copyright
Copyright © Materials Research Society 1999

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