Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-29T10:31:19.997Z Has data issue: false hasContentIssue false
  • English
  • Français

Novel Non-aqueous Sol-Gel Synthesis of Carbon-Coated LiMPO4 (M = Fe, Mn, Co) for Lithium Ion Batteries

Published online by Cambridge University Press:  01 February 2011

Jingsi Yang  and
Jun John Xu
Jingsi Yang
Affiliation:
Materials Science and Engineering Rutgers, the State University of New Jersey Piscataway, NJ 08854, USA
Jun John Xu
Affiliation:
Materials Science and Engineering Rutgers, the State University of New Jersey Piscataway, NJ 08854, USA
Get access

Abstract

A simple organic solvent based sol-gel method for synthesis of carbon-coated LiFePO4 is developed. Phase pure LiFePO4 with uniform size of 200–300 nm and no agglomeration is obtained, with 1.8 wt % surface carbon formed in-situ. Such a material gives specific discharge capacities of 150 mAh/g and 145 mAh/g at C/5 and 2C at room temperature, respectively, with desirable cycling stability. The dependence of particle size and morphology on precursor concentrations is opposite to conventional solution based methods. Other LiMPO4 (M = Mn, Co, Ni, etc) with favorable physical characteristics can be synthesized the same way.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 835: Symposium K – Solid-State Ionics , 2004 , K11.9
Copyright
Copyright © Materials Research Society 2005

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Padhi, K., Nanjundaswamy, K. S. and Goodenough, J. B., J. Electrochem, Soc., 144, 1188 (1997)Google Scholar
2. Ravet, N., Goodenough, J. B., Besner, S., Simouneau, M., Hovington, P. and Armand, M., Abstract 127, The Electrochemical Society and The Electrochemical Society of Japan Meeting Abstracts, Vol. 99–2, Honolulu, HI, Oct. (1999).Google Scholar
3. Tarascon, J. M., Delacourt, C., Prakash, A. S., Morcrette, M., Hegde, M. S., Wurm, C. and Masquelier, C., Dalton Trans., 19, 2988 (2004)Google Scholar
4. Yang, S., Zavalij, P. Y. and Whittingham, M. S., Electrochem. Comm., 3, 505 (2001).Google Scholar
5. Arnold, G., Garche, J., Hemmer, R., Strobele, S., Vogler, C. and Wohlfahrt-Mehrens, M., J. Power Sources, 119–121, 247 (2003)Google Scholar
6. Croce, F., Epifanio, A. D., Hassoun, J., Deptula, A., Olczac, T. and Scrosati, B., Electrochem. Solid-State Lett., 5, A47 (2002).Google Scholar
7. Hu, Y., Doeff, M. M., Kostecki, R. and Finones, R., J. Electrochem, Soc., 151, A1279 (2004)Google Scholar
8. Yang, J. and Xu, J. J., Electrochem. Solid-State Lett., 7, A515 (2004).Google Scholar
9. Zhou, F., Cococcioni, M., Kang, K. and Ceder, G., Electrochem. Comm., 6, 1144 (2004)Google Scholar