Improved cycle life of Fe-substituted LiCoPO4
1
U.S. ARMY RESEARCH LABORATORY , 2800 POWDER MILL ROAD, ADELPHI, MD, 20783-1197, USA
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Тип публикации: Journal Article
Дата публикации: 2011-10-01
scimago Q1
wos Q1
БС1
SJR: 1.784
CiteScore: 14.9
Impact factor: 7.9
ISSN: 03787753, 18732755
Physical and Theoretical Chemistry
Electrical and Electronic Engineering
Energy Engineering and Power Technology
Renewable Energy, Sustainability and the Environment
Краткое описание
Fe-substituted LiCoPO4 exhibits greatly improved cycle life relative to LiCoPO4. Whereas, pure LiCoPO4 loses more than half of its discharge capacity at the 10th cycle, the Fe-substituted LiCoPO4 retains about 100% of its discharge capacity at the 10th cycle and about 80% of its capacity at the 500th cycle. It is suggested that improved cycle life results from Fe3+ substitution on the Li and Co sites. The partial substitution of Li+ by Fe3+ and Co2+ by Fe2+ and Fe3+ was evidenced from Rietveld analysis of X-ray powder diffraction data, infrared spectroscopy, X-ray photoelectron spectroscopy and Mossbauer spectroscopy. The majority of the Fe3+ substitutes at the Co2+ site. The composition of Fe-substituted LiCoPO4 is Li0.92Co0.8Fe2+0.12Fe3+0.08PO4 for a sample of starting composition LiCo0.8Fe0.2PO4.
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Allen J., Jow T. R., Wolfenstine J. Improved cycle life of Fe-substituted LiCoPO4 // Journal of Power Sources. 2011. Vol. 196. No. 20. pp. 8656-8661.
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Allen J., Jow T. R., Wolfenstine J. Improved cycle life of Fe-substituted LiCoPO4 // Journal of Power Sources. 2011. Vol. 196. No. 20. pp. 8656-8661.
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TY - JOUR
DO - 10.1016/j.jpowsour.2011.06.057
UR - https://doi.org/10.1016/j.jpowsour.2011.06.057
TI - Improved cycle life of Fe-substituted LiCoPO4
T2 - Journal of Power Sources
AU - Allen, J.L.
AU - Jow, T. R.
AU - Wolfenstine, Jeff
PY - 2011
DA - 2011/10/01
PB - Elsevier
SP - 8656-8661
IS - 20
VL - 196
SN - 0378-7753
SN - 1873-2755
ER -
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@article{2011_Allen,
author = {J.L. Allen and T. R. Jow and Jeff Wolfenstine},
title = {Improved cycle life of Fe-substituted LiCoPO4},
journal = {Journal of Power Sources},
year = {2011},
volume = {196},
publisher = {Elsevier},
month = {oct},
url = {https://doi.org/10.1016/j.jpowsour.2011.06.057},
number = {20},
pages = {8656--8661},
doi = {10.1016/j.jpowsour.2011.06.057}
}
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MLA
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Allen, J.L., et al. “Improved cycle life of Fe-substituted LiCoPO4.” Journal of Power Sources, vol. 196, no. 20, Oct. 2011, pp. 8656-8661. https://doi.org/10.1016/j.jpowsour.2011.06.057.