LITHIUM INTERCALATION IN THE DIVALENT METAL VANADATES MEV2O6 (ME=Cu, Co, Ni, Mn or Zn)

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Authors
  1. Andrukaitis, E.
  2. Cooper, J.P.
  3. Smit, J.H.
Corporate Authors
Chief of Research and Development, Ottawa ONT (CAN) Director Research and Development Air
Abstract
Divalent metal vanadates, Mex V2O6, where Me = Cu, Co, Zn, Mn or Ni, were found to reversibly intercalate lithium. These transition metal vanadates were made by a precipitation method which formed a hydrated divalent metal vanadate (Mex V2O6 2H2O). The hydrated water was removed by heating the vanadate above 300C and composite electrodes were prepared with carbon and polytetrafluoroethylene. The cell voltage and energy density were dependent on both the divalent metal present and the temperature to which the vanadate was annealed. The Zn, Mn, Co and Ni vandates were reversible to lithium intercalation at average voltages from 1.3 to 1.9 V (versus Li) and their specific capacities were dependent on the annealing temperature. The copper vanadate yielded the best cell voltage and energy density.
Keywords
Lithium intercalation
Date of publication
01 Jan 1995
Number of Pages
8
Reprinted from
Journal of Power Sources, vol 54, 1995, p 465-469
DSTKIM No
96-00648
CANDIS No
154693
Format(s):
Document Image stored on Optical Disk;Hardcopy

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