4.8 Article

Synthesis and characterization of Li3V(2-2x/3)Mgx(PO4)3/C cathode material for lithium-ion batteries

Journal

JOURNAL OF POWER SOURCES
Volume 195, Issue 15, Pages 5013-5018

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2010.02.009

Keywords

Lithium-ion battery; Li3V2(PO4)(3); Mg-doping; Sol-gel assisted

Funding

  1. National Key Project of China for Basic Research [2006CB202600]
  2. National High Technology Research and Development Program of China [2007AA03Z222]

Ask authors/readers for more resources

Li3V(2-2x/3)Mgx(PO4)(3)/C (x = 0, 0.15, 0.30, 0.45) composites have been synthesized by the sol-gel assisted solid state method, using adipic acid C6H10O4 (hexanedioic acid) as carbon source. The particle size of the composites is similar to 1 mu m. During the pyrolysis process. Li3V(2-2x/3)Mgx(PO4)(3)/C network structure is formed. The effect of Mg2+ doped on the electrochemical properties of Li3V2(PO4)(3)/C positive materials has been studied. Li3V1.8Mg0.30(PO4)(3)/C as the cathode materials of Li-ion batteries, the retention rate of discharge capacity is 91.4% (1 C) after 100 cycles. Compared with Li3V2(PO4)(3)/C, Li3V(2-2x/3)Mgx(PO4)(3)/C composites have shown enhanced capacity and retention rate capability. The long-term cycles and ex situ XRD tests disclose that Li3V1.8Mg0.30(PO4)(3) exhibits higher structural stability than the undoped system. (C) 2010 Elsevier B.V. All rights reserved.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.8
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available