An Aqueous Reduction Method To Synthesize Spinel-LiMn2O 4 Nanoparticles as a Cathode Material for Rechargeable Lithium-Ion Batteries

V. Ganesh Kumar, J. S. Gnanaraj, S. Ben-David, David M. Pickup, Ernst R.H. Van-Eck, A. Gedanken, D. Aurbach

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Abstract

A new synthetic method has been developed and demonstrated for the utilization of commercially cheap MnO2 for the production of nanoparticles of LiMn2O4 spinel as a cathode material for Li-ion batteries. The process involves the insertion of lithium into electrolytic manganese dioxide (EMD) in an aqueous medium with glucose as a mild reductant in open air. The material resulting from calcination is pure, spinel-structured Li0.96Mn2O4 particles of sub-micrometric and nanometric size that exhibit promising electrochemical behavior in nonaqueous Li-salt solutions. Further development of this process may be interesting for the commercial production of LiMn2O 4 for Li-ion batteries.

Original languageEnglish
Pages (from-to)4211-4216
Number of pages6
JournalChemistry of Materials
Volume15
Issue number22
DOIs
StatePublished - 4 Nov 2003

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