Li2FeSiO4 cathode material: the structure and electrochemical performances
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Date
2014-09-01
Journal Title
Journal ISSN
Volume Title
Publisher
Materials Research Society of Serbia
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. © 2014 Materials Research Society of Serbia
Description
Keywords
Monoclinic lattices, Lithium ion batteries, X-ray diffraction, Cathodes, Crystal structure, Electrochemistry
Citation
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. Paper presented at Sixteenth Annual Conference YUCOMAT 2014, Hunguest Hotel Sun Resort Herceg Novi, Montenegro, September 1-5, 2014. In The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts, 2014, (pp. 6). Retrieved from https://www.mrs-serbia.org.rs/index.php/yucomat-books-of-abstracts/yucomat-2014.