Li2FeSiO4 cathode material: the structure and electrochemical performances

2014
Authors
Jugović, Dragana
Milović, Miloš

Mitrić, Miodrag

Ivanovski, Valentin N.

Avdeev, Maxim

Jokić, Bojan

Dominko, Robert

Uskoković, Dragan

Conference object (Published version)
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Show full item recordAbstract
Monoclinic Li2FeSiO4 that crystallizes in P21/n space group was investigated as a potential cathode material for lithium-ion batteries. A combined X-ray diffraction and Mössbauer spectroscopy study was used for the structural investigation. It was found that the crystal structure is prone to an “antisite” defect, the one in which the Fe ion and the Li ion exchange places. This finding was also confirmed by the Mössbauer spectroscopy. In order to obtain composites of Li2FeSiO4 and carbon, several synthesis techniques that use different carbon sources were involved. Electrochemical performances were investigated through galvanostatic charge/discharge tests. Discharge curve profile did not reflect a two-phase intercalation reaction (no obvious voltage plateau) due to the low conductivity at room temperature.
Keywords:
Li2FeSiO4 / cathode materials / Mössbauer spectroscopy / lithium-ion batteries / XRDSource:
The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts, 2014, 6-6Publisher:
- Belgrade : Materials Research Society of Serbia
Funding / projects:
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - CONF AU - Jugović, Dragana AU - Milović, Miloš AU - Mitrić, Miodrag AU - Ivanovski, Valentin N. AU - Avdeev, Maxim AU - Jokić, Bojan AU - Dominko, Robert AU - Uskoković, Dragan PY - 2014 UR - https://dais.sanu.ac.rs/123456789/590 AB - Monoclinic Li2FeSiO4 that crystallizes in P21/n space group was investigated as a potential cathode material for lithium-ion batteries. A combined X-ray diffraction and Mössbauer spectroscopy study was used for the structural investigation. It was found that the crystal structure is prone to an “antisite” defect, the one in which the Fe ion and the Li ion exchange places. This finding was also confirmed by the Mössbauer spectroscopy. In order to obtain composites of Li2FeSiO4 and carbon, several synthesis techniques that use different carbon sources were involved. Electrochemical performances were investigated through galvanostatic charge/discharge tests. Discharge curve profile did not reflect a two-phase intercalation reaction (no obvious voltage plateau) due to the low conductivity at room temperature. PB - Belgrade : Materials Research Society of Serbia C3 - The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts T1 - Li2FeSiO4 cathode material: the structure and electrochemical performances SP - 6 EP - 6 UR - https://hdl.handle.net/21.15107/rcub_dais_590 ER -
@conference{ author = "Jugović, Dragana and Milović, Miloš and Mitrić, Miodrag and Ivanovski, Valentin N. and Avdeev, Maxim and Jokić, Bojan and Dominko, Robert and Uskoković, Dragan", year = "2014", abstract = "Monoclinic Li2FeSiO4 that crystallizes in P21/n space group was investigated as a potential cathode material for lithium-ion batteries. A combined X-ray diffraction and Mössbauer spectroscopy study was used for the structural investigation. It was found that the crystal structure is prone to an “antisite” defect, the one in which the Fe ion and the Li ion exchange places. This finding was also confirmed by the Mössbauer spectroscopy. In order to obtain composites of Li2FeSiO4 and carbon, several synthesis techniques that use different carbon sources were involved. Electrochemical performances were investigated through galvanostatic charge/discharge tests. Discharge curve profile did not reflect a two-phase intercalation reaction (no obvious voltage plateau) due to the low conductivity at room temperature.", publisher = "Belgrade : Materials Research Society of Serbia", journal = "The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts", title = "Li2FeSiO4 cathode material: the structure and electrochemical performances", pages = "6-6", url = "https://hdl.handle.net/21.15107/rcub_dais_590" }
Jugović, D., Milović, M., Mitrić, M., Ivanovski, V. N., Avdeev, M., Jokić, B., Dominko, R.,& Uskoković, D.. (2014). Li2FeSiO4 cathode material: the structure and electrochemical performances. in The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts Belgrade : Materials Research Society of Serbia., 6-6. https://hdl.handle.net/21.15107/rcub_dais_590
Jugović D, Milović M, Mitrić M, Ivanovski VN, Avdeev M, Jokić B, Dominko R, Uskoković D. Li2FeSiO4 cathode material: the structure and electrochemical performances. in The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts. 2014;:6-6. https://hdl.handle.net/21.15107/rcub_dais_590 .
Jugović, Dragana, Milović, Miloš, Mitrić, Miodrag, Ivanovski, Valentin N., Avdeev, Maxim, Jokić, Bojan, Dominko, Robert, Uskoković, Dragan, "Li2FeSiO4 cathode material: the structure and electrochemical performances" in The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts (2014):6-6, https://hdl.handle.net/21.15107/rcub_dais_590 .