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Natural graphite enhanced the electrochemical performance of LiV(PO) cathode material for lithium ion batteries.
- Source :
-
Journal of Solid State Electrochemistry . Feb2016, Vol. 20 Issue 2, p311-318. 8p. - Publication Year :
- 2016
-
Abstract
- Natural graphite treated by mechanical activation can be directly applied to the preparation of LiV(PO). The carbon-coated LiV(PO) with monoclinic structure was successfully synthesized by using natural graphite as carbon source and reducing agent. The amount of activated graphite is optimized by X-ray diffraction, scanning electron microscope, transmission electron microscope, Raman spectrum, galvanostatic charge/discharge measurements, cyclic voltammetry, and electrochemical impedance spectroscopy tests. Our results show that LiV(PO) (LVP)-10G exhibits the highest initial discharge capacity of 189 mAh g at 0.1 C and 162.9 mAh g at 1 C in the voltage range of 3.0-4.8 V. Therefore, natural graphite is a promising carbon source for LVP cathode material in lithium ion batteries. [ABSTRACT FROM AUTHOR]
- Subjects :
- *LITHIUM-ion batteries
*GRAPHITE
*ELECTROCHEMISTRY
*CATHODES
*CRYSTAL structure
Subjects
Details
- Language :
- English
- ISSN :
- 14328488
- Volume :
- 20
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Journal of Solid State Electrochemistry
- Publication Type :
- Academic Journal
- Accession number :
- 112404609
- Full Text :
- https://doi.org/10.1007/s10008-015-3044-z