Toward understanding the lithiation/delithiation process in Fe0.5TiOPO4/C electrode material for lithium-ion batteries
Abstract
We used Fe0.5TiOPO4/C composite as anode material for LIB and exhibits excellent cycling performance when the electrode is cycled in two different voltage ranges [3.0-1.3V] and [3.0- 0.02V] where different insertion mechanisms were involved. Based on in situ X-ray diffraction, in situ XANES spectroscopy results, and various electrochemical analyses at high and low voltage cut-off, we found that Fe0.5TiOPO4/C electrode materials still maintains its structure crystallinity after cycling between [3.0-1.3V] showing formation of new phase at the end of first discharge, with a reversible capacity of 100 mAhg-1 after 50 cycles at C/5 rate. Moreover, at highly lithiated states, [3.0-0.02V] voltage range, a reduction decomposition reaction highlights the Li-insertion/extraction behaviors, and low phase crystallinity is observed during cycling, in addition an excellent rate behavior and a reversible capacity of 250 mAhg- 1 can still be maintained after 50 cycles at high cycling rate 5C.
- Authors:
-
- Cadi Ayyad Univ., Marrakech (Morrocco)
- Julich Research Centre (Germany)
- Cadi Ayyad Univ., Marrakech (Morrocco); Mohammad VI Polytechnical Univ., Ben Guerir (Morrocco)
- Univ. of Montpellier (France); Research Center on Batteries and Supercapacitors, Amiens Cedex (France)
- Julich Research Centre (Germany); Univ. of Liege, (Belgium). Faculty of Sciences; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Karlsruhe Inst. of Technology (KIT) (Germany)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1261325
- Alternate Identifier(s):
- OSTI ID: 1254046
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Solar Energy Materials and Solar Cells
- Additional Journal Information:
- Journal Volume: 148; Journal Issue: C; Journal ID: ISSN 0927-0248
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 25 ENERGY STORAGE; Lithium-ion batteries; Anode material; Fe0.5TiOPO4; Reaction mechanism; In situ XRD; In situ XANES
Citation Formats
Lasri, Karima, Mahmoud, Abdelfattah, Saadoune, Ismael, Sougrati, Moulay Tahar, Stievano, Lorenzo, Lippens, Pierre-Emmanuel, Hermann, Raphaël Pierre, and Ehrenberg, Helmut. Toward understanding the lithiation/delithiation process in Fe0.5TiOPO4/C electrode material for lithium-ion batteries. United States: N. p., 2015.
Web. doi:10.1016/j.solmat.2015.11.021.
Lasri, Karima, Mahmoud, Abdelfattah, Saadoune, Ismael, Sougrati, Moulay Tahar, Stievano, Lorenzo, Lippens, Pierre-Emmanuel, Hermann, Raphaël Pierre, & Ehrenberg, Helmut. Toward understanding the lithiation/delithiation process in Fe0.5TiOPO4/C electrode material for lithium-ion batteries. United States. https://doi.org/10.1016/j.solmat.2015.11.021
Lasri, Karima, Mahmoud, Abdelfattah, Saadoune, Ismael, Sougrati, Moulay Tahar, Stievano, Lorenzo, Lippens, Pierre-Emmanuel, Hermann, Raphaël Pierre, and Ehrenberg, Helmut. Sat .
"Toward understanding the lithiation/delithiation process in Fe0.5TiOPO4/C electrode material for lithium-ion batteries". United States. https://doi.org/10.1016/j.solmat.2015.11.021. https://www.osti.gov/servlets/purl/1261325.
@article{osti_1261325,
title = {Toward understanding the lithiation/delithiation process in Fe0.5TiOPO4/C electrode material for lithium-ion batteries},
author = {Lasri, Karima and Mahmoud, Abdelfattah and Saadoune, Ismael and Sougrati, Moulay Tahar and Stievano, Lorenzo and Lippens, Pierre-Emmanuel and Hermann, Raphaël Pierre and Ehrenberg, Helmut},
abstractNote = {We used Fe0.5TiOPO4/C composite as anode material for LIB and exhibits excellent cycling performance when the electrode is cycled in two different voltage ranges [3.0-1.3V] and [3.0- 0.02V] where different insertion mechanisms were involved. Based on in situ X-ray diffraction, in situ XANES spectroscopy results, and various electrochemical analyses at high and low voltage cut-off, we found that Fe0.5TiOPO4/C electrode materials still maintains its structure crystallinity after cycling between [3.0-1.3V] showing formation of new phase at the end of first discharge, with a reversible capacity of 100 mAhg-1 after 50 cycles at C/5 rate. Moreover, at highly lithiated states, [3.0-0.02V] voltage range, a reduction decomposition reaction highlights the Li-insertion/extraction behaviors, and low phase crystallinity is observed during cycling, in addition an excellent rate behavior and a reversible capacity of 250 mAhg- 1 can still be maintained after 50 cycles at high cycling rate 5C.},
doi = {10.1016/j.solmat.2015.11.021},
journal = {Solar Energy Materials and Solar Cells},
number = C,
volume = 148,
place = {United States},
year = {Sat Nov 28 00:00:00 EST 2015},
month = {Sat Nov 28 00:00:00 EST 2015}
}
Web of Science