Sinteza i karakterizacija LiFePo4/C katodnog materijala dobijenog pomoću postupka liofilizacije u prisustvu PVP-a
Synthesis and characterization of LiFePo4/C cathode material by freeze drying method with PVP
Аутори
Kuzmanović, MajaJugović, Dragana
Mitrić, Miodrag
Jokić, Bojan
Cvjetićanin, Nikola
Uskoković, Dragoljub P.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Lithium iron phosphate is a promising cathode material for lithium ion battery application thanks to its good characteristics. Here is presented the freeze drying method for the preparation of carbon coated LiFePO4, where PVP is used as a carbon source. The main advantage of this method is mixing at the atomic level and introducing the carbon source into the precursor solution. The synthesis process can be divided into three stages: freezing of a precursor solution, drying under vacuum until water evaporates and calicination of as-dried powder at slightly reductive atmosphere. Powder X-ray diffraction measurement demonstrated single phase LiFePO4 with crystallite size of 45.8 nm. Morphology and particle size was revealed with scanning electron microscopy and particle size analyzer. Galvanostatic cycling from 2.3 to 4.1 V vs. Li/Li+, shows typical LiFePO4 redox behavior with plateau at 3.4 V. The discharge capacity value obtained at C/10 rate was 154 mAh- 1, with decrease on greater C-r...ates.
Кључне речи:
LiFePO4 / cathode materials / lithium-ion batteries / freeze dryingИзвор:
Tehnika, 2014, 69, 3, 373-376Издавач:
- Belgrade : Union of Engineers and Technicians of Serbia
Финансирање / пројекти:
Институција/група
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Kuzmanović, Maja AU - Jugović, Dragana AU - Mitrić, Miodrag AU - Jokić, Bojan AU - Cvjetićanin, Nikola AU - Uskoković, Dragoljub P. PY - 2014 UR - http://www.ncbi.nlm.nih.gov/pubmed/0040-21761403373K UR - https://dais.sanu.ac.rs/123456789/11624 AB - Lithium iron phosphate is a promising cathode material for lithium ion battery application thanks to its good characteristics. Here is presented the freeze drying method for the preparation of carbon coated LiFePO4, where PVP is used as a carbon source. The main advantage of this method is mixing at the atomic level and introducing the carbon source into the precursor solution. The synthesis process can be divided into three stages: freezing of a precursor solution, drying under vacuum until water evaporates and calicination of as-dried powder at slightly reductive atmosphere. Powder X-ray diffraction measurement demonstrated single phase LiFePO4 with crystallite size of 45.8 nm. Morphology and particle size was revealed with scanning electron microscopy and particle size analyzer. Galvanostatic cycling from 2.3 to 4.1 V vs. Li/Li+, shows typical LiFePO4 redox behavior with plateau at 3.4 V. The discharge capacity value obtained at C/10 rate was 154 mAh- 1, with decrease on greater C-rates. PB - Belgrade : Union of Engineers and Technicians of Serbia T2 - Tehnika T1 - Sinteza i karakterizacija LiFePo4/C katodnog materijala dobijenog pomoću postupka liofilizacije u prisustvu PVP-a T1 - Synthesis and characterization of LiFePo4/C cathode material by freeze drying method with PVP SP - 373 EP - 376 VL - 69 IS - 3 DO - 10.5937/tehnika1403373K UR - https://hdl.handle.net/21.15107/rcub_dais_11624 ER -
@article{ author = "Kuzmanović, Maja and Jugović, Dragana and Mitrić, Miodrag and Jokić, Bojan and Cvjetićanin, Nikola and Uskoković, Dragoljub P.", year = "2014", abstract = "Lithium iron phosphate is a promising cathode material for lithium ion battery application thanks to its good characteristics. Here is presented the freeze drying method for the preparation of carbon coated LiFePO4, where PVP is used as a carbon source. The main advantage of this method is mixing at the atomic level and introducing the carbon source into the precursor solution. The synthesis process can be divided into three stages: freezing of a precursor solution, drying under vacuum until water evaporates and calicination of as-dried powder at slightly reductive atmosphere. Powder X-ray diffraction measurement demonstrated single phase LiFePO4 with crystallite size of 45.8 nm. Morphology and particle size was revealed with scanning electron microscopy and particle size analyzer. Galvanostatic cycling from 2.3 to 4.1 V vs. Li/Li+, shows typical LiFePO4 redox behavior with plateau at 3.4 V. The discharge capacity value obtained at C/10 rate was 154 mAh- 1, with decrease on greater C-rates.", publisher = "Belgrade : Union of Engineers and Technicians of Serbia", journal = "Tehnika", title = "Sinteza i karakterizacija LiFePo4/C katodnog materijala dobijenog pomoću postupka liofilizacije u prisustvu PVP-a, Synthesis and characterization of LiFePo4/C cathode material by freeze drying method with PVP", pages = "373-376", volume = "69", number = "3", doi = "10.5937/tehnika1403373K", url = "https://hdl.handle.net/21.15107/rcub_dais_11624" }
Kuzmanović, M., Jugović, D., Mitrić, M., Jokić, B., Cvjetićanin, N.,& Uskoković, D. P.. (2014). Sinteza i karakterizacija LiFePo4/C katodnog materijala dobijenog pomoću postupka liofilizacije u prisustvu PVP-a. in Tehnika Belgrade : Union of Engineers and Technicians of Serbia., 69(3), 373-376. https://doi.org/10.5937/tehnika1403373K https://hdl.handle.net/21.15107/rcub_dais_11624
Kuzmanović M, Jugović D, Mitrić M, Jokić B, Cvjetićanin N, Uskoković DP. Sinteza i karakterizacija LiFePo4/C katodnog materijala dobijenog pomoću postupka liofilizacije u prisustvu PVP-a. in Tehnika. 2014;69(3):373-376. doi:10.5937/tehnika1403373K https://hdl.handle.net/21.15107/rcub_dais_11624 .
Kuzmanović, Maja, Jugović, Dragana, Mitrić, Miodrag, Jokić, Bojan, Cvjetićanin, Nikola, Uskoković, Dragoljub P., "Sinteza i karakterizacija LiFePo4/C katodnog materijala dobijenog pomoću postupka liofilizacije u prisustvu PVP-a" in Tehnika, 69, no. 3 (2014):373-376, https://doi.org/10.5937/tehnika1403373K ., https://hdl.handle.net/21.15107/rcub_dais_11624 .