This title appears in the Scientific Report :
2016
Please use the identifier:
http://dx.doi.org/10.1016/j.solmat.2015.11.021 in citations.
Toward understanding the lithiation/delithiation process in Fe0.5TiOPO4/C electrode material for lithium-ion batteries
Toward understanding the lithiation/delithiation process in Fe0.5TiOPO4/C electrode material for lithium-ion batteries
Fe0.5TiOPO4/C composite was used as anode material for LIB and exhibits excellent cycling performance when the electrode is cycled in two different voltage ranges [3.0–1.3 V] and [3.0–0.02 V] where different insertion mechanisms were involved. A detailed in situ XANES spectroscopy study coupled to t...
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Personal Name(s): | Lasri, Karima |
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Mahmoud, Abdelfattah (Corresponding author) / Saadoune, Ismael / Sougrati, Moulay Tahar / Stievano, Lorenzo / Lippens, Pierre-Emmanuel / Ehrenberg, Helmut / Hermann, Raphael | |
Contributing Institute: |
Streumethoden; JCNS-2 JARA-FIT; JARA-FIT Streumethoden; PGI-4 |
Published in: | Solar energy materials & solar cells, 148 (2016) S. 11-19 |
Imprint: |
Amsterdam
North Holland
2016
|
DOI: |
10.1016/j.solmat.2015.11.021 |
Document Type: |
Journal Article |
Research Program: |
Jülich Centre for Neutron Research (JCNS) Materials and Processes for Energy and Transport Technologies Quantum Condensed Matter: Magnetism, Superconductivity Controlling Collective States Controlling Collective States |
Publikationsportal JuSER |
Fe0.5TiOPO4/C composite was used as anode material for LIB and exhibits excellent cycling performance when the electrode is cycled in two different voltage ranges [3.0–1.3 V] and [3.0–0.02 V] where different insertion mechanisms were involved. A detailed in situ XANES spectroscopy study coupled to the electrochemical analyses, clearly established that the structure of Fe0.5TiOPO4/C electrode materials is preserved when cycled between 3.0 and 1.3 V. Furthermore, a formation of new phase at the end of first discharge was evidenced, with a reversible capacity of 100 mA h g−1 after 50 cycles at C/5 rate. At highly lithiated states, [3.0–0.02 V] 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 mA h g−1 can still be maintained after 50 cycles at high cycling rate 5C. |