Toward understanding the lithiation/delithiation process in Fe0.5TiOPO4/C electrode material for lithium-ion batteries

Lasri, Karima; Mahmoud, Abdelfattah; Saadoune, Ismael; Sougrati, Moulay Tahar; Stievano, Lorenzo; Lippens, Pierre-Emmanuel; Hermann, Raphaël Pierre; Ehrenberg, Helmut

doi:10.1016/j.solmat.2015.11.021

Title: Toward understanding the lithiation/delithiation process in Fe_0.5TiOPO₄/C electrode material for lithium-ion batteries

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Abstract

We used Fe_0.5TiOPO₄/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 Fe_0.5TiOPO₄/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:

Lasri, Karima ^[1]; Mahmoud, Abdelfattah ^[2]; Saadoune, Ismael ^[3]; Sougrati, Moulay Tahar ^[4]; Stievano, Lorenzo ^[4]; Lippens, Pierre-Emmanuel ^[4]; Hermann, Raphaël Pierre ^[5]; Ehrenberg, Helmut ^[6]

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:: Sat Nov 28 00:00:00 EST 2015

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.

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                    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

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                    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.

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@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}

}

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Title: Toward understanding the lithiation/delithiation process in Fe0.5TiOPO4/C electrode material for lithium-ion batteries

Abstract

Citation Formats

Title: Toward understanding the lithiation/delithiation process in Fe_0.5TiOPO₄/C electrode material for lithium-ion batteries