The influence of fluorine doping on the structural and electrical properties of the LiFePO4 powder
Samo za registrovane korisnike
2017
Autori
Jugović, DraganaMitrić, Miodrag
Milović, Miloš
Cvjetićanin, Nikola
Jokić, Bojan
Umićević, Ana
Uskoković, Dragan
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Low intrinsic electronic conductivity is the main disadvantage of LiFePO4 when used as a cathode material in lithium ion batteries. The paper offers experimental proofs of the theoretical prediction that fluorine doping of LiFePO4 can enhance its electrical conductivity. The LiFePO4 and fluorine-doped LiFePO4 olivine type, carbon-free powders are synthesized and examined. The crystal structure refinements in the Pnma space group reveal that doping with fluorine ions preserves the olivine structure, while reducing both the lattice parameters and the antisite defect, and increasing the crystallite size. A small amount of incorporated fluorine enhances the electrical conductivity from 4.6×10−7 S cm−1 to 2.3×10−6 S cm−1 and has a positive impact on the electrochemical performance. Several spectroscopy techniques (Mössbauer, FTIR, and Raman) reveal differences between the two powders and additionally support the findings of both the Rietveld refinement and the conductivity measurements.
Ključne reči:
Powders: solid state reaction / Spectroscopy / Electrical properties / ElectrodesIzvor:
Ceramics International, 2017, 43, 3, 3224-3230Izdavač:
- Elsevier
Finansiranje / projekti:
- Molekularno dizajniranje nanočestica kontrolisanih morfoloških i fizičko-hemijskih karakteristika i funkcionalnih materijala na njihovoj osnovi (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45004)
- Magnetni i radionuklidima obeleženi nanostrukturni materijali za primene u medicini (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45015)
- Litijum-jon baterije i gorivne ćelije-istraživanje i razvoj (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45014)
- Istraživanje intermetalika i poluprovodnika i moguća primena u obnovljivim izvorima energije (RS-MESTD-Basic Research (BR or ON)-171001)
DOI: 10.1016/j.ceramint.2016.11.149
ISSN: 0272-8842
WoS: 000392769600045
Scopus: 2-s2.0-85006469947
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Jugović, Dragana AU - Mitrić, Miodrag AU - Milović, Miloš AU - Cvjetićanin, Nikola AU - Jokić, Bojan AU - Umićević, Ana AU - Uskoković, Dragan PY - 2017 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5856 AB - Low intrinsic electronic conductivity is the main disadvantage of LiFePO4 when used as a cathode material in lithium ion batteries. The paper offers experimental proofs of the theoretical prediction that fluorine doping of LiFePO4 can enhance its electrical conductivity. The LiFePO4 and fluorine-doped LiFePO4 olivine type, carbon-free powders are synthesized and examined. The crystal structure refinements in the Pnma space group reveal that doping with fluorine ions preserves the olivine structure, while reducing both the lattice parameters and the antisite defect, and increasing the crystallite size. A small amount of incorporated fluorine enhances the electrical conductivity from 4.6×10−7 S cm−1 to 2.3×10−6 S cm−1 and has a positive impact on the electrochemical performance. Several spectroscopy techniques (Mössbauer, FTIR, and Raman) reveal differences between the two powders and additionally support the findings of both the Rietveld refinement and the conductivity measurements. PB - Elsevier T2 - Ceramics International T1 - The influence of fluorine doping on the structural and electrical properties of the LiFePO4 powder EP - 3230 IS - 3 SP - 3224 VL - 43 DO - 10.1016/j.ceramint.2016.11.149 UR - https://hdl.handle.net/21.15107/rcub_dais_2352 ER -
@article{ author = "Jugović, Dragana and Mitrić, Miodrag and Milović, Miloš and Cvjetićanin, Nikola and Jokić, Bojan and Umićević, Ana and Uskoković, Dragan", year = "2017", abstract = "Low intrinsic electronic conductivity is the main disadvantage of LiFePO4 when used as a cathode material in lithium ion batteries. The paper offers experimental proofs of the theoretical prediction that fluorine doping of LiFePO4 can enhance its electrical conductivity. The LiFePO4 and fluorine-doped LiFePO4 olivine type, carbon-free powders are synthesized and examined. The crystal structure refinements in the Pnma space group reveal that doping with fluorine ions preserves the olivine structure, while reducing both the lattice parameters and the antisite defect, and increasing the crystallite size. A small amount of incorporated fluorine enhances the electrical conductivity from 4.6×10−7 S cm−1 to 2.3×10−6 S cm−1 and has a positive impact on the electrochemical performance. Several spectroscopy techniques (Mössbauer, FTIR, and Raman) reveal differences between the two powders and additionally support the findings of both the Rietveld refinement and the conductivity measurements.", publisher = "Elsevier", journal = "Ceramics International", title = "The influence of fluorine doping on the structural and electrical properties of the LiFePO4 powder", pages = "3230-3224", number = "3", volume = "43", doi = "10.1016/j.ceramint.2016.11.149", url = "https://hdl.handle.net/21.15107/rcub_dais_2352" }
Jugović, D., Mitrić, M., Milović, M., Cvjetićanin, N., Jokić, B., Umićević, A.,& Uskoković, D.. (2017). The influence of fluorine doping on the structural and electrical properties of the LiFePO4 powder. in Ceramics International Elsevier., 43(3), 3224-3230. https://doi.org/10.1016/j.ceramint.2016.11.149 https://hdl.handle.net/21.15107/rcub_dais_2352
Jugović D, Mitrić M, Milović M, Cvjetićanin N, Jokić B, Umićević A, Uskoković D. The influence of fluorine doping on the structural and electrical properties of the LiFePO4 powder. in Ceramics International. 2017;43(3):3224-3230. doi:10.1016/j.ceramint.2016.11.149 https://hdl.handle.net/21.15107/rcub_dais_2352 .
Jugović, Dragana, Mitrić, Miodrag, Milović, Miloš, Cvjetićanin, Nikola, Jokić, Bojan, Umićević, Ana, Uskoković, Dragan, "The influence of fluorine doping on the structural and electrical properties of the LiFePO4 powder" in Ceramics International, 43, no. 3 (2017):3224-3230, https://doi.org/10.1016/j.ceramint.2016.11.149 ., https://hdl.handle.net/21.15107/rcub_dais_2352 .