Study of Mex(VO3)2 vanadates, (Me = Co, Ni, Mn, 1 < x < 2) for lithium rechargeable cells

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Author	Search for: Andrukaitis, E.¹; Search for: Torlone, G. L.¹; Search for: Hill, I. R.
Affiliation	National Research Council of Canada. NRC Institute for Chemical Process and Environmental Technology
Format	Text, Article
Subject	Lithium insertion; Transition metal oxides; Vanadate; Vanadium oxide
Abstract	Transition metal vanadates, Mex(VO3)2.2H2O, where Me = Co, Ni and Mn and 1.0 < x < 2.0, were found to reversibly insert lithium. The efficiency of reversible insertion depended on both the transition metal present and the stoichiometric ratio of Me:V in the vanadate structure. The Ni and Co vanadates gave the highest specific capacities using lithium metal coin cells, with initial specific capacities above 0.7 A h/g (1.0 W h/g) when x is near 1.0. The operating voltage of these materials was in the range of 1.0 to 2.0 V. Lithium ion coin cells using LiCoO2 coupled with the vanadates, were also examined. These were found to deliver about 200 mA h/g, with average voltages of 2.5 to 2.0 V for values of x from 1.1 to 1.2.
Publication date	1999
In	Journal of Power Sources 81-82 (1999): 651–655.
Language	English
Peer reviewed	Yes
NRC number	NRCC 51875 NRCC 51775
NPARC number	13063725
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Record identifier	4fb69661-8965-4e8d-8167-8e7ea35f9fd0
Record created	2011-04-05
Record modified	2020-03-20

Date modified:: 2024-07-06