Performances and Ageing Mechanisms of LiMn1-XFexPO4 // Graphite Prototype Cells
Several publications,, present promising results on this type of material with good rate capabilities, good cycle life, but these results are mainly obtained in half cells vs Li° with low loaded electrodes.
Our work is focused on C-LiMn2/3Fe1/3PO4which has shown an excellent cyclability in half cells vs Li°.
Prototype cells vs graphite have been assembled using high loaded electrodes, with a design close to industrial cells. Results obtained show:
- excellent rate capability: >90% of capacity is recovered at 5C
- excellent cycle life: 80% of capacity is still remaining after 900 cycles
The study of ageing mechanisms by post-mortem analyses will be discussed.
Acknowledgment: All results presented here have been obtained on a material supplied by Clariant
 A. K. Padhi, K. S. Nanjundaswamy and J. B. Goodenough, Journal of The Electrochemical Society 1997, 144, 1188-1194.
 S.-M. Oh, H.-G. Jung, C. S. Yoon, S.-T. Myung, Z. Chen, K. Amine and Y.-K. Sun, Journal of Power Sources 2011, 196, 6924-6928.
 B. Z. Li, Y. Wang, L. Xue, X. P. Li and W. S. Li, Journal of Power Sources 2013.