Synthesis of f-doped LiFePO4 via precipitation method
Аутори
Milović, MilošVukajlović, Filip R.
Jugović, Dragana
Mitrić, Miodrag
Jokić, Bojan M.
Cvjetićanin, Nikola
Milošević, Aleksandar S.
Popović, Zoran S.
Uskoković, Dragan
Остала ауторства
Uskoković, DraganКонференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Fluorine-doped, olivine-structured LiFePO4 suitable for cathode material in rechargeable lithium batteries was prepared by aqueous precipitation followed by high temperature treatment at 700°C under slightly reductive atmosphere (Ar+5%H2). The starting materials were equimolar quantities of (NH4)2HPO4, FeSO4·7H2O and LiF. LiF served as both lithium and fluorine source. Besides the lattice parameters and the primitive cell volume reductions, compared to the undoped sample synthesized under the same conditions using LiNO3 as lithium source, the Rietveld refinement also shows that fluorine ions preferably occupy specific oxygen sites. Particularly, the best refinement is accomplished when fluorine ions occupy O(2) sites exclusively. By means of up-to-date electronic structure and total energy calculations this experimental finding is theoretically confirmed. Such fluorine doping also produces closing of the gap in the electronic structure and consequently better conductivity properties of... the doped compound. In addition, the morphological and electrochemical performances of the synthesized powders are fully characterized.
Кључне речи:
LiFePO4 / lithium iron phosphate / precipitation / fluorine doping / cathode materialsИзвор:
The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts, 2013, 75-75Издавач:
- Belgrade : Materials Research Society of Serbia
Финансирање / пројекти:
- Молекуларно дизајнирање наночестица контролисаних морфолошких и физичко-хемијских карактеристика и функционалних материјала на њиховој основи (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45004)
Колекције
Институција/група
VinčaTY - CONF AU - Milović, Miloš AU - Vukajlović, Filip R. AU - Jugović, Dragana AU - Mitrić, Miodrag AU - Jokić, Bojan M. AU - Cvjetićanin, Nikola AU - Milošević, Aleksandar S. AU - Popović, Zoran S. AU - Uskoković, Dragan PY - 2013 UR - http://dais.sanu.ac.rs/123456789/399 UR - https://vinar.vin.bg.ac.rs/handle/123456789/7418 AB - Fluorine-doped, olivine-structured LiFePO4 suitable for cathode material in rechargeable lithium batteries was prepared by aqueous precipitation followed by high temperature treatment at 700°C under slightly reductive atmosphere (Ar+5%H2). The starting materials were equimolar quantities of (NH4)2HPO4, FeSO4·7H2O and LiF. LiF served as both lithium and fluorine source. Besides the lattice parameters and the primitive cell volume reductions, compared to the undoped sample synthesized under the same conditions using LiNO3 as lithium source, the Rietveld refinement also shows that fluorine ions preferably occupy specific oxygen sites. Particularly, the best refinement is accomplished when fluorine ions occupy O(2) sites exclusively. By means of up-to-date electronic structure and total energy calculations this experimental finding is theoretically confirmed. Such fluorine doping also produces closing of the gap in the electronic structure and consequently better conductivity properties of the doped compound. In addition, the morphological and electrochemical performances of the synthesized powders are fully characterized. PB - Belgrade : Materials Research Society of Serbia C3 - The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts T1 - Synthesis of f-doped LiFePO4 via precipitation method SP - 75 EP - 75 UR - https://hdl.handle.net/21.15107/rcub_vinar_7418 ER -
@conference{ author = "Milović, Miloš and Vukajlović, Filip R. and Jugović, Dragana and Mitrić, Miodrag and Jokić, Bojan M. and Cvjetićanin, Nikola and Milošević, Aleksandar S. and Popović, Zoran S. and Uskoković, Dragan", year = "2013", abstract = "Fluorine-doped, olivine-structured LiFePO4 suitable for cathode material in rechargeable lithium batteries was prepared by aqueous precipitation followed by high temperature treatment at 700°C under slightly reductive atmosphere (Ar+5%H2). The starting materials were equimolar quantities of (NH4)2HPO4, FeSO4·7H2O and LiF. LiF served as both lithium and fluorine source. Besides the lattice parameters and the primitive cell volume reductions, compared to the undoped sample synthesized under the same conditions using LiNO3 as lithium source, the Rietveld refinement also shows that fluorine ions preferably occupy specific oxygen sites. Particularly, the best refinement is accomplished when fluorine ions occupy O(2) sites exclusively. By means of up-to-date electronic structure and total energy calculations this experimental finding is theoretically confirmed. Such fluorine doping also produces closing of the gap in the electronic structure and consequently better conductivity properties of the doped compound. In addition, the morphological and electrochemical performances of the synthesized powders are fully characterized.", publisher = "Belgrade : Materials Research Society of Serbia", journal = "The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts", title = "Synthesis of f-doped LiFePO4 via precipitation method", pages = "75-75", url = "https://hdl.handle.net/21.15107/rcub_vinar_7418" }
Milović, M., Vukajlović, F. R., Jugović, D., Mitrić, M., Jokić, B. M., Cvjetićanin, N., Milošević, A. S., Popović, Z. S.,& Uskoković, D.. (2013). Synthesis of f-doped LiFePO4 via precipitation method. in The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts Belgrade : Materials Research Society of Serbia., 75-75. https://hdl.handle.net/21.15107/rcub_vinar_7418
Milović M, Vukajlović FR, Jugović D, Mitrić M, Jokić BM, Cvjetićanin N, Milošević AS, Popović ZS, Uskoković D. Synthesis of f-doped LiFePO4 via precipitation method. in The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts. 2013;:75-75. https://hdl.handle.net/21.15107/rcub_vinar_7418 .
Milović, Miloš, Vukajlović, Filip R., Jugović, Dragana, Mitrić, Miodrag, Jokić, Bojan M., Cvjetićanin, Nikola, Milošević, Aleksandar S., Popović, Zoran S., Uskoković, Dragan, "Synthesis of f-doped LiFePO4 via precipitation method" in The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts (2013):75-75, https://hdl.handle.net/21.15107/rcub_vinar_7418 .