The influence of fluorine doping on the structural and electrical properties of the LiFePO4 powder
Само за регистроване кориснике
2017
Аутори
Jugović, DraganaMitrić, Miodrag
Milović, Miloš
Cvjetićanin, Nikola
Jokić, Bojan M.
Umićević, Ana
Uskoković, Dragan
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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 4.6x10(-7) S cm(-1) to 2.3x10(-6) S cm(-1) and has a positive impact on the electrochemical performance. Several spectroscopy techniques (Mossbauer, FTIR, and Raman) reveal differences between the two powders and additionally support the findings of both the Rietveld refinement and the conductivity measureme...nts.
Кључне речи:
Powders: solid state reaction / Spectroscopy / Electrical properties / ElectrodesИзвор:
Ceramics International, 2017, 43, 3, 3224-3230Финансирање / пројекти:
- Молекуларно дизајнирање наночестица контролисаних морфолошких и физичко-хемијских карактеристика и функционалних материјала на њиховој основи (RS-45004)
- Магнетни и радионуклидима обележени наноструктурни материјали за примене у медицини (RS-45015)
- Литијум-јон батерије и горивне ћелије-истраживање и развој (RS-45014)
DOI: 10.1016/j.ceramint.2016.11.149
ISSN: 0272-8842; 1873-3956
WoS: 000392769600045
Scopus: 2-s2.0-85006469947
Колекције
Институција/група
VinčaTY - JOUR AU - Jugović, Dragana AU - Mitrić, Miodrag AU - Milović, Miloš AU - Cvjetićanin, Nikola AU - Jokić, Bojan M. AU - Umićević, Ana AU - Uskoković, Dragan PY - 2017 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1401 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 4.6x10(-7) S cm(-1) to 2.3x10(-6) S cm(-1) and has a positive impact on the electrochemical performance. Several spectroscopy techniques (Mossbauer, FTIR, and Raman) reveal differences between the two powders and additionally support the findings of both the Rietveld refinement and the conductivity measurements. T2 - Ceramics International T1 - The influence of fluorine doping on the structural and electrical properties of the LiFePO4 powder VL - 43 IS - 3 SP - 3224 EP - 3230 DO - 10.1016/j.ceramint.2016.11.149 ER -
@article{ author = "Jugović, Dragana and Mitrić, Miodrag and Milović, Miloš and Cvjetićanin, Nikola and Jokić, Bojan M. 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 4.6x10(-7) S cm(-1) to 2.3x10(-6) S cm(-1) and has a positive impact on the electrochemical performance. Several spectroscopy techniques (Mossbauer, FTIR, and Raman) reveal differences between the two powders and additionally support the findings of both the Rietveld refinement and the conductivity measurements.", journal = "Ceramics International", title = "The influence of fluorine doping on the structural and electrical properties of the LiFePO4 powder", volume = "43", number = "3", pages = "3224-3230", doi = "10.1016/j.ceramint.2016.11.149" }
Jugović, D., Mitrić, M., Milović, M., Cvjetićanin, N., Jokić, B. M., Umićević, A.,& Uskoković, D.. (2017). The influence of fluorine doping on the structural and electrical properties of the LiFePO4 powder. in Ceramics International, 43(3), 3224-3230. https://doi.org/10.1016/j.ceramint.2016.11.149
Jugović D, Mitrić M, Milović M, Cvjetićanin N, Jokić BM, 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 .
Jugović, Dragana, Mitrić, Miodrag, Milović, Miloš, Cvjetićanin, Nikola, Jokić, Bojan M., 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 . .