Physicochemical properties of lithium iron phosphate-carbon as lithium polymer battery cathodes
Article first published online: 4 OCT 2011
Copyright © 2011 John Wiley & Sons, Ltd.
International Journal of Energy Research
Volume 37, Issue 6, pages 500–509, May 2013
How to Cite
Jin, B., Sun, G., Liang, J. and Gu, H.-B. (2013), Physicochemical properties of lithium iron phosphate-carbon as lithium polymer battery cathodes. Int. J. Energy Res., 37: 500–509. doi: 10.1002/er.1927
- Issue published online: 18 APR 2013
- Article first published online: 4 OCT 2011
- Manuscript Accepted: 27 JUL 2011
- Manuscript Revised: 21 JUL 2011
- Manuscript Received: 3 SEP 2010
- Lithium iron phosphate-carbon;
- solid polymer electrolyte;
- lithium polymer battery
Lithium iron phosphate-carbon (LiFePO4/multiwalled carbon nanotubes (MWCNTs)) composite cathode materials were prepared by a hydrothermal method. In this study, we used MWCNTs as conductive additive. Poly (vinylidene fluoride-co-hexafluoropropylene)-based solid polymer electrolyte (SPE) was applied. The structural and morphological performance of LiFePO4/MWCNTs cathode materials was investigated by X-ray diffraction and scanning electron microscopy/mapping. The electrochemical properties of Li/SPE/LiFePO4-MWCNTs coin-type polymer batteries were analyzed by cyclic voltammetry, ac impedance and galvanostatic charge/discharge tests. Li/SPE/LiFePO4-MWCNTs polymer battery with 5 wt % MWCNTs demonstrates the highest discharge capacity and stable cyclability at room temperature. It is indicated that LiFePO4-MWCNTs can be used as the cathode materials for lithium polymer batteries. Copyright © 2011 John Wiley & Sons, Ltd.