Synthesis and characterization of LiFePO(4)/C composite obtained by sonochemical method
Authorized Users Only
2008
Authors
Jugović, Dragana
Mitrić, Miodrag

Cvjetićanin, Nikola

Jančar, Boštjan

Mentus, Slavko

Uskoković, Dragan

Article (Published version)

Metadata
Show full item recordAbstract
Lithium iron phosphate has become of great interest as storage cathode for the next generation of rechargeable lithium batteries. Olivine structure LiFePO(4)/C composite powder was prepared by ultrasound assisted synthesis. A polyvinyl alcohol solution was used as the source of an in situ formed carbon. X-ray powder diffraction confirmed the phase purity. X-ray powder diffraction data were used for the crystal structure refinement, based on Rietveld full profile method. All relevant structural and microstructural crystal parameters that could be significant for electrochemical intercalation/deintercalation processes were determined. The Rietveld refinement also showed additional electron density on the lithium sites, indicating 3 at.% iron on the lithium site. Electrochemical characteristic of the composite was evaluated by using galvanostatic charge/discharge tests. While cycling at C/3 (C/10) rate the discharge capacity increases, starting from the value of 94.1 (116.0) mAh/g and rea...ching 99.5 (124.0) mAh/g at the end of the cycling. Particle morphology was revealed by both scanning and transmission electron microscopies. On the thin particle edges carbon film with a typical thickness of several nanometers can be observed, as well as small carbon agglomerates (typical size LT 6 nm) at certain spots on the substrate surface. (c) 2008 Elsevier B.V. All rights reserved.
Keywords:
olivine / Rietveld analysis / lithium iron phosphate (LiFePO(4)) / sonochemistry / cathode materialSource:
Solid State Ionics, 2008, 179, 11-12, 415-419Funding / projects:
- Sinteza funkcionalnih materijala sa kontrolisanom strukturom na molekularnom i nano nivou (RS-142006)
DOI: 10.1016/j.ssi.2008.03.014
ISSN: 0167-2738 (print)
WoS: 000256200100007
Scopus: 2-s2.0-42749086758
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Jugović, Dragana AU - Mitrić, Miodrag AU - Cvjetićanin, Nikola AU - Jančar, Boštjan AU - Mentus, Slavko AU - Uskoković, Dragan PY - 2008 UR - https://dais.sanu.ac.rs/123456789/2739 AB - Lithium iron phosphate has become of great interest as storage cathode for the next generation of rechargeable lithium batteries. Olivine structure LiFePO(4)/C composite powder was prepared by ultrasound assisted synthesis. A polyvinyl alcohol solution was used as the source of an in situ formed carbon. X-ray powder diffraction confirmed the phase purity. X-ray powder diffraction data were used for the crystal structure refinement, based on Rietveld full profile method. All relevant structural and microstructural crystal parameters that could be significant for electrochemical intercalation/deintercalation processes were determined. The Rietveld refinement also showed additional electron density on the lithium sites, indicating 3 at.% iron on the lithium site. Electrochemical characteristic of the composite was evaluated by using galvanostatic charge/discharge tests. While cycling at C/3 (C/10) rate the discharge capacity increases, starting from the value of 94.1 (116.0) mAh/g and reaching 99.5 (124.0) mAh/g at the end of the cycling. Particle morphology was revealed by both scanning and transmission electron microscopies. On the thin particle edges carbon film with a typical thickness of several nanometers can be observed, as well as small carbon agglomerates (typical size LT 6 nm) at certain spots on the substrate surface. (c) 2008 Elsevier B.V. All rights reserved. T2 - Solid State Ionics T1 - Synthesis and characterization of LiFePO(4)/C composite obtained by sonochemical method SP - 415 EP - 419 VL - 179 IS - 11-12 DO - 10.1016/j.ssi.2008.03.014 UR - https://hdl.handle.net/21.15107/rcub_dais_2739 ER -
@article{ author = "Jugović, Dragana and Mitrić, Miodrag and Cvjetićanin, Nikola and Jančar, Boštjan and Mentus, Slavko and Uskoković, Dragan", year = "2008", abstract = "Lithium iron phosphate has become of great interest as storage cathode for the next generation of rechargeable lithium batteries. Olivine structure LiFePO(4)/C composite powder was prepared by ultrasound assisted synthesis. A polyvinyl alcohol solution was used as the source of an in situ formed carbon. X-ray powder diffraction confirmed the phase purity. X-ray powder diffraction data were used for the crystal structure refinement, based on Rietveld full profile method. All relevant structural and microstructural crystal parameters that could be significant for electrochemical intercalation/deintercalation processes were determined. The Rietveld refinement also showed additional electron density on the lithium sites, indicating 3 at.% iron on the lithium site. Electrochemical characteristic of the composite was evaluated by using galvanostatic charge/discharge tests. While cycling at C/3 (C/10) rate the discharge capacity increases, starting from the value of 94.1 (116.0) mAh/g and reaching 99.5 (124.0) mAh/g at the end of the cycling. Particle morphology was revealed by both scanning and transmission electron microscopies. On the thin particle edges carbon film with a typical thickness of several nanometers can be observed, as well as small carbon agglomerates (typical size LT 6 nm) at certain spots on the substrate surface. (c) 2008 Elsevier B.V. All rights reserved.", journal = "Solid State Ionics", title = "Synthesis and characterization of LiFePO(4)/C composite obtained by sonochemical method", pages = "415-419", volume = "179", number = "11-12", doi = "10.1016/j.ssi.2008.03.014", url = "https://hdl.handle.net/21.15107/rcub_dais_2739" }
Jugović, D., Mitrić, M., Cvjetićanin, N., Jančar, B., Mentus, S.,& Uskoković, D.. (2008). Synthesis and characterization of LiFePO(4)/C composite obtained by sonochemical method. in Solid State Ionics, 179(11-12), 415-419. https://doi.org/10.1016/j.ssi.2008.03.014 https://hdl.handle.net/21.15107/rcub_dais_2739
Jugović D, Mitrić M, Cvjetićanin N, Jančar B, Mentus S, Uskoković D. Synthesis and characterization of LiFePO(4)/C composite obtained by sonochemical method. in Solid State Ionics. 2008;179(11-12):415-419. doi:10.1016/j.ssi.2008.03.014 https://hdl.handle.net/21.15107/rcub_dais_2739 .
Jugović, Dragana, Mitrić, Miodrag, Cvjetićanin, Nikola, Jančar, Boštjan, Mentus, Slavko, Uskoković, Dragan, "Synthesis and characterization of LiFePO(4)/C composite obtained by sonochemical method" in Solid State Ionics, 179, no. 11-12 (2008):415-419, https://doi.org/10.1016/j.ssi.2008.03.014 ., https://hdl.handle.net/21.15107/rcub_dais_2739 .