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Synthesis and properties of a vanadium oxide based lithium ion Cathode

Published online by Cambridge University Press:  10 February 2011

Benjamin Chaloner-Gill  and
Dale R. Shackle
Benjamin Chaloner-Gill
Affiliation:
Rentech, Inc., 20 Great Oaks Boulevard, Suite 130, San Jose, California 95119-1309
Dale R. Shackle
Affiliation:
Rentech, Inc., 20 Great Oaks Boulevard, Suite 130, San Jose, California 95119-1309
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Abstract

The development of high capacity cathode materials for lithium ion batteries has resulted in three materials dominating the market, lithiated manganese, cobalt and nickel oxides and mixtures thereof. In the search for greater energy storage, we have examined a number of vanadium oxides.

Comparing the ratio of lithium to metal atom in the three compounds listed above allows for the extraction of one lithium atom per two metal atoms. If the cathode is vanadium based, the number of cycleable lithiums increases to a value closer to 0.75–1.00.

Despite the fact that vanadium oxides operate at lower voltages, a net gain in energy is observed from the use of LixVyOz over the currently available materials. Lithiation of LiV3O7.9 for use in a lithium ion cell is the focus of this paper. Chemical lithiation by reducing lithium salt will be described.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 575: Symposium CC – New Materials for Batteries & Fuel Cells , 1999 , 91
Copyright
Copyright © Materials Research Society 2000

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References

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