Journal
JOURNAL OF POWER SOURCES
Volume 196, Issue 16, Pages 6893-6897Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2010.12.095
Keywords
Lithium-ion battery; Amorphous FePO4; Mossbauer spectroscopy; Lithiation
Funding
- NSERC
- Phostech Lithium
- Industrial Research Chair program
Ask authors/readers for more resources
LiFePO4 was prepared using two synthetic routes which involved the precipitation and lithiation of an amorphous FePO4 precursor followed by a thermal treatment. Both hydrated and dehydrated FePO4 were used. The XRD patterns confirm the amorphous nature of both the precipitated and the lithiated product, while a crystalline LiFePO4 product is obtained after thermal treatment. Mossbauer spectroscopy was used to analyse the oxidation state of iron during various stages of the reaction. The Mossbauer data demonstrates a large amount of Fe3+ ions in the lithiated samples which suggest that the lithiation reaction does not go to completion. Therefore, the formation of LiFePO4 may be in part associated with the thermal treatment and not the lithiation step. (C) 2011 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available