Organic phosphoric sources for syntheses of Li₃V₂(PO₄)₃/C via improved rheological phase reaction

Li₃V₂(PO₄)₃/C is synthesized by an improved rheological phase method using Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) as organic phosphoric sources. The phosphoric sources with carbon chains can inhibit the grain growth of Li₃V₂(PO₄)₃ particles. X-ray powder diffraction pattern shows that the o...

Full description

Saved in:
Bibliographic Details
Published in:Materials letters 2012, Vol.66 (1), p.196-198
Main Authors: Huang, J.S, Yang, L, Liu, K.Y
Format: Article
Language:English
Subjects:
Carbon
Diffraction patterns
Discharge
Displays
electrodes
HEDP
Raman spectroscopy
Rheological properties
Synthesis
X-radiation
X-rays
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Li₃V₂(PO₄)₃/C is synthesized by an improved rheological phase method using Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) as organic phosphoric sources. The phosphoric sources with carbon chains can inhibit the grain growth of Li₃V₂(PO₄)₃ particles. X-ray powder diffraction pattern shows that the obtained Li₃V₂(PO₄)₃/C sample is monoclinic phase. Transmission electron microscope results show that the thickness of carbon layer is about 10nm. The form of residual carbon is confirmed by Raman spectroscopy. The Li₃V₂(PO₄)₃/C sample prepared by 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) displays the initial discharge capacity of 158mAhg⁻¹ and keeps 130mAhg⁻¹ after 100 cycles at 1C rate. The improved rheological phase reaction method can be used for synthesis of Li₃V₂(PO₄)₃ cathode material and other polyanion materials.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2011.08.097