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Synthesis and Characterization of Manganese Vanadium Oxides as Cathodes in Lithium Batteries

Published online by Cambridge University Press:  21 February 2011

Fan Zhang ,
Peter Zavalij  and
M. Stanley Whittingham
Fan Zhang
Affiliation:
Materials Research Center and Chemistry Department, State University of New York at Binghamton, Binghamton, NY 13902-6000
Peter Zavalij
Affiliation:
Materials Research Center and Chemistry Department, State University of New York at Binghamton, Binghamton, NY 13902-6000
M. Stanley Whittingham
Affiliation:
Materials Research Center and Chemistry Department, State University of New York at Binghamton, Binghamton, NY 13902-6000
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Abstract

Our research on new cathode nano-materials for advanced lithium batteries has focused on the hydrothermal method for synthesis. We have synthesized two novel manganese vanadium oxides using the hydrothermal reactions of vanadium (V) pentoxide, [N(CH3)4]MnO4, and MnSO4 with an organic templating cation at 165°C. The 6-type [N(CH3)4]zMnyV2O5*nH2O has a monoclinic structure, a= 11.66(2)Å, b=3.610(9)Å, c= 13.91(4)Å, β= 108.8(2)°. It has a disordered V2O5 double layer and the Mn and N(CH3)4 ions reside between the layers. The γ-type MnV2O5 is orthorhombic, belongs to the space group Pnma, a=9.7585(2) Å, b=3.5825(l)Å, c= 11.2653(2) Å. These compounds were also characterized by electron microprobe, FTIR and TGA. They reacted readily with lithium, and their electrochemical behavior in lithium cells was determined.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 581: Symposium F – Nanophase & Nanocomposite Materials II , 1999 , 497
Copyright
Copyright © Materials Research Society 2000

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