Towards a green and cost-effective synthesis of polyanionic cathodes: comparative electrochemical behaviour of LiFePO4/C, Li2FeP2O7/C and Li2FeSiO4/C synthesized using methylcellulose matrix
Authors
Milović, Miloš
Jugović, Dragana

Vujković, Milica

Kuzmanović, Maja

Mraković, Ana

Mitrić, Miodrag

Article (Accepted Version)
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The polyanion cathodes for Li-ion batteries, namely LiFePO4, Li2FeP2O7 and Li2FeSiO4, were synthesized by very short high-temperature treatment (approximately several minutes) and subsequent quenching. Methylcellulose—a polymer with thermally driven water solubility—was used as the medium in which the precursor solutions were dispersed prior to high temperature treatment. The methylcellulose pyrolytically decomposes to carbon, thus producing the polyanion material/carbon composites of LiFePO4/C, Li2FeP2O7/C and Li2FeSiO4/C. The obtained powders have reduced crystallinity and significant microstructural characteristics: low crystallite size and notable microstrain. They exhibit stable electrochemical performances in both aqueous and organic electrolyte. The broadening of existing peaks in cyclic voltammetry and/or the emergence of new broad peaks was attributed to the presence of the amorphous phase in the samples. In galvanostatic charge–discharge tests, the materials provided high cap...acities at low current densities, while the highest rate performance was demonstrated by olivine-phosphate when compared to the other two materials.
Keywords:
polyanione cathodes / LiFePO4 / Li2FeP2O7 / Li2FeSiO4 / methylcellulose / quenchingSource:
Bulletin of Materials Science, 2021, 44, 2, 144-Publisher:
- Springer Science and Business Media LLC
Funding / projects:
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200175 (Institute of Technical Sciences of SASA, Belgrade) (RS-200175)
- Bilateral project Montenegro-Serbia: Bilateral project between Serbia and Slovenia "Developments of novel materials for alkaline-ion batteries"
Note:
- This is the peer-reviewed version of the article: Milović Miloš, Jugović Dragana, Vujković Milica, Kuzmanović Maja, Mraković Ana, Mitrić Miodrag, "Towards a green and cost-effective synthesis of polyanionic cathodes: comparative electrochemical behaviour of LiFePO4/C, Li2FeP2O7/C and Li2FeSiO4/C synthesized using methylcellulose matrix" Bulletin of Materials Science, 44, no. 2 (2021):144, https://doi.org/10.1007/s12034-021-02397-3
Related info:
- Version of
https://hdl.handle.net/21.15107/rcub_dais_11635 - Version of
http://dx.doi.org/10.1007/s12034-021-02397-3
DOI: 10.1007/s12034-021-02397-3
ISSN: 0250-4707; 0973-7669
WoS: 000653518500003
Scopus: 2-s2.0-85105817162
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Milović, Miloš AU - Jugović, Dragana AU - Vujković, Milica AU - Kuzmanović, Maja AU - Mraković, Ana AU - Mitrić, Miodrag PY - 2021 UR - https://dais.sanu.ac.rs/123456789/11636 AB - The polyanion cathodes for Li-ion batteries, namely LiFePO4, Li2FeP2O7 and Li2FeSiO4, were synthesized by very short high-temperature treatment (approximately several minutes) and subsequent quenching. Methylcellulose—a polymer with thermally driven water solubility—was used as the medium in which the precursor solutions were dispersed prior to high temperature treatment. The methylcellulose pyrolytically decomposes to carbon, thus producing the polyanion material/carbon composites of LiFePO4/C, Li2FeP2O7/C and Li2FeSiO4/C. The obtained powders have reduced crystallinity and significant microstructural characteristics: low crystallite size and notable microstrain. They exhibit stable electrochemical performances in both aqueous and organic electrolyte. The broadening of existing peaks in cyclic voltammetry and/or the emergence of new broad peaks was attributed to the presence of the amorphous phase in the samples. In galvanostatic charge–discharge tests, the materials provided high capacities at low current densities, while the highest rate performance was demonstrated by olivine-phosphate when compared to the other two materials. PB - Springer Science and Business Media LLC T2 - Bulletin of Materials Science T1 - Towards a green and cost-effective synthesis of polyanionic cathodes: comparative electrochemical behaviour of LiFePO4/C, Li2FeP2O7/C and Li2FeSiO4/C synthesized using methylcellulose matrix SP - 144 VL - 44 IS - 2 DO - 10.1007/s12034-021-02397-3 UR - https://hdl.handle.net/21.15107/rcub_dais_11636 ER -
@article{ author = "Milović, Miloš and Jugović, Dragana and Vujković, Milica and Kuzmanović, Maja and Mraković, Ana and Mitrić, Miodrag", year = "2021", abstract = "The polyanion cathodes for Li-ion batteries, namely LiFePO4, Li2FeP2O7 and Li2FeSiO4, were synthesized by very short high-temperature treatment (approximately several minutes) and subsequent quenching. Methylcellulose—a polymer with thermally driven water solubility—was used as the medium in which the precursor solutions were dispersed prior to high temperature treatment. The methylcellulose pyrolytically decomposes to carbon, thus producing the polyanion material/carbon composites of LiFePO4/C, Li2FeP2O7/C and Li2FeSiO4/C. The obtained powders have reduced crystallinity and significant microstructural characteristics: low crystallite size and notable microstrain. They exhibit stable electrochemical performances in both aqueous and organic electrolyte. The broadening of existing peaks in cyclic voltammetry and/or the emergence of new broad peaks was attributed to the presence of the amorphous phase in the samples. In galvanostatic charge–discharge tests, the materials provided high capacities at low current densities, while the highest rate performance was demonstrated by olivine-phosphate when compared to the other two materials.", publisher = "Springer Science and Business Media LLC", journal = "Bulletin of Materials Science", title = "Towards a green and cost-effective synthesis of polyanionic cathodes: comparative electrochemical behaviour of LiFePO4/C, Li2FeP2O7/C and Li2FeSiO4/C synthesized using methylcellulose matrix", pages = "144", volume = "44", number = "2", doi = "10.1007/s12034-021-02397-3", url = "https://hdl.handle.net/21.15107/rcub_dais_11636" }
Milović, M., Jugović, D., Vujković, M., Kuzmanović, M., Mraković, A.,& Mitrić, M.. (2021). Towards a green and cost-effective synthesis of polyanionic cathodes: comparative electrochemical behaviour of LiFePO4/C, Li2FeP2O7/C and Li2FeSiO4/C synthesized using methylcellulose matrix. in Bulletin of Materials Science Springer Science and Business Media LLC., 44(2), 144. https://doi.org/10.1007/s12034-021-02397-3 https://hdl.handle.net/21.15107/rcub_dais_11636
Milović M, Jugović D, Vujković M, Kuzmanović M, Mraković A, Mitrić M. Towards a green and cost-effective synthesis of polyanionic cathodes: comparative electrochemical behaviour of LiFePO4/C, Li2FeP2O7/C and Li2FeSiO4/C synthesized using methylcellulose matrix. in Bulletin of Materials Science. 2021;44(2):144. doi:10.1007/s12034-021-02397-3 https://hdl.handle.net/21.15107/rcub_dais_11636 .
Milović, Miloš, Jugović, Dragana, Vujković, Milica, Kuzmanović, Maja, Mraković, Ana, Mitrić, Miodrag, "Towards a green and cost-effective synthesis of polyanionic cathodes: comparative electrochemical behaviour of LiFePO4/C, Li2FeP2O7/C and Li2FeSiO4/C synthesized using methylcellulose matrix" in Bulletin of Materials Science, 44, no. 2 (2021):144, https://doi.org/10.1007/s12034-021-02397-3 ., https://hdl.handle.net/21.15107/rcub_dais_11636 .