Synthesis and electrochemical performance of LiCoPO4 micron-rods by dispersant-aided hydrothermal method for lithium ion batteries

LiCoPO 4 micron-rods with an average diameter of about 500 nm and length of about 5 μm were synthesized by dispersant-aided hydrothermal method. Poly( n -vinylpyrrolidone) (PVP) was used as dispersant in the hydrothermal method. The starting solution and the concentration of dispersant have signific...

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Bibliographic Details
Published in:Rare metals 2009-04, Vol.28 (2), p.117-121
Main Authors: Zhao, Yujuan, Wang, Suijun, Zhao, Chunsong, Xia, Dingguo
Format: Article
Language:English
Subjects:
Biomaterials
Chemistry and Materials Science
Energy
Lithium
Materials Engineering
Materials Science
Metallic Materials
Nanoscale Science and Technology
Physical Chemistry
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Summary:LiCoPO 4 micron-rods with an average diameter of about 500 nm and length of about 5 μm were synthesized by dispersant-aided hydrothermal method. Poly( n -vinylpyrrolidone) (PVP) was used as dispersant in the hydrothermal method. The starting solution and the concentration of dispersant have significant influences on the morphology of LiCoPO 4 , and the electrochemical performance is improved via controlling the particle size and morphology by the hydrothermal method. The cell using smaller particle LiCoPO 4 as cathode delivers a larger capacity and lower cell polarization.
ISSN:1001-0521
1867-7185
DOI:10.1007/s12598-009-0023-5