Li3V2(PO4)3/C composite as an intercalation-type anode material for lithium-ion batteries

X. H. Rui, Murat Nulati Yesibolati, C. H. Chen

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The carbon coated monoclinic Li3V2(PO4)3 (LVP/C) powder is successfully synthesized by a carbothermal reduction method using crystal sugar as the carbon source Its structure and physicochemical properties are investigated using X-ray diffraction (XRD) scanning electron microscopy high-resolution transmission electron microscopy and electrochemical methods The LVP/C electrode exhibits stable reversible capacities of 203 and 102 mAh g-1 in the potential ranges of s 0-0 0 V and 30-1 0 V versus Li+/Li recpectively It is identified that the insertion/extraction of Li+ undergoes a series of two-phase transition processes between 30 and 1 6V and a single phase procees between 1 6 and 0 0 V The ex situ XRD patterns of the electrodes at various lithiated states indica that the monoclinic structure can still be retained during charge-discharge process and the insertion/deinsertion of lithium ions occur reversibly which provides an excellent cycling stability with high energy efficiency (C) 2010 Elsevier B V All rights reserved
Original languageEnglish
JournalJournal of Power Sources
Volume196
Issue number4
Pages (from-to)2279-2282
Number of pages4
ISSN0378-7753
DOIs
Publication statusPublished - 2011
Externally publishedYes

Keywords

  • Anode material
  • Intercalation
  • Lithium ion battery
  • Lithium vanadium phosphate

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