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Lithium Nickelate with Cadmium Iodide Structure

Published online by Cambridge University Press:  10 February 2011

Hanime Arai  and
Yoji Sakurai
Hanime Arai
Affiliation:
NTT Telecommunications Energy Laboratories, Tokai, Ibaraki 319-1193, Japan, [email protected]
Yoji Sakurai
Affiliation:
NTT Telecommunications Energy Laboratories, Tokai, Ibaraki 319-1193, Japan, [email protected]
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Abstract

We obtained a highly delithiated sample of Li0.04NiO2 using acid leaching. The Rietveld analysis of its X-ray diffraction pattern indicated that the sample was a mixture of three phases. Two of them maintained the pristine structure with cubic close-packing layers while the other phase had a cadmium iodide structure with hexagonal close-packing layers. We examined the electrochemical behavior of this sample as a positive electrode material for lithium batteries. The discharge capacity was smaller than that of a Li0.10NiO2 sample obtained by acid leaching, suggesting that the capacity loss is due to the formation of the phase with the cadmium iodide structure.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 575: Symposium CC – New Materials for Batteries & Fuel Cells , 1999 , 3
Copyright
Copyright © Materials Research Society 2000

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References

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