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Vanadium-doped lithium thiochromite: properties, crystal structure and electrochemical performance in rechargeable Li cells

Authors
Journal
Journal of Power Sources
0378-7753
Publisher
Elsevier
Publication Date
Volume
34
Issue
2
Identifiers
DOI: 10.1016/0378-7753(91)85032-r
Disciplines
  • Chemistry

Abstract

Abstract The physicochemical properties and crystal structure of vanadium-doped lithium thiochromite, produced by thermal synthesis in a sulfur melt and a subsequent delithiation in oxygen-containing aqueous suspension, are described. The compound is characterized by a rigid crystal structure, which can sustain the mechanical tensions developed during lithium intercalation and deintercalation upon cycling. The electrochemical performance of this compound as cathode material in lithium secondary cells, specific capacity of 0.15–0.16 mA h g −1, mild-discharge voltage of 2.5 V, and cycling efficiency above 99%, make it attractive for practical applications.

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