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Ionic Conductivities of Lithium Phosphorus Oxynitride Glasses, Polycrystals and Thin Films

Published online by Cambridge University Press:  16 February 2011

B. Wang ,
J. B. Bates ,
B. C. Chakoumakos ,
B. C. Sales ,
B. S. Kwak ,
R. A. Zuhr  and
J. D. Robertson
B. Wang
Affiliation:
Solid State Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
J. B. Bates
Affiliation:
Solid State Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
B. C. Chakoumakos
Affiliation:
Solid State Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
B. C. Sales
Affiliation:
Solid State Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
B. S. Kwak
Affiliation:
Solid State Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
R. A. Zuhr
Affiliation:
Solid State Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
J. D. Robertson
Affiliation:
Department of Chemistry, University of Kentucky, Lexington, KY 40502, USA
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Abstract

Various lithium phosphorus oxynitrides have been prepared in the form of glasses, polycrystals, and thin films. The structures of these compounds were investigated by X-ray and neutron diffraction, X-ray photoelectron spectroscopy (XPS), and high-performance liquid chromatography (HPLC). The ac impedance measurements indicate a significant improvement of ionic conductivity as the result of incorporation of nitrogen into the structure. In the case of polycrystalline Li2.88PO3.73N0.14 with the γ-Li3PO4 structure, the conductivity increased by several orders of magnitude on small addition of nitrogen. The highest conductivities in the bulk glasses and thin films were found to be 3.0 × 10-7 and 8.9 × 10-7 S-cm-1 at 25°C, respectively.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 369: Symposium U – Solid State Ionics IV , 1994 , 445
Copyright
Copyright © Materials Research Society 1995

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References

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