Hydrothermal synthesis of LiFePO4 powders as cathode material for li-ion batteries
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Phospho-olivine LiFePO4 have been intensively studied as lithium insertion cathode materials for next generation of Li-ion secondary batteries. LiFePO4 has an interesting theoretical specific capacity of about 170 mAhg-1, a good cycle stability and technically attractive flat voltage versus current profile of 3.45 V versus Li+/Li. A further advantage of this material, thanks to its stability, is the improved safety at high temperatures. In this work, LiFePO4 was prepared by hydrothermal reaction starting from water solutions of LiOH, FeSO4 and H3PO4. After hydrothermal reaction the obtained powder was heat treated in reduction atmosphere to avoid oxidation of Fe2+ to Fe3+. Powder was additionally treated by high energy ball-milling. The structural and morphological properties of LiFePO4 powder was characterized by X- ray diffraction and scanning electron microscopy. LiFePO4/Li battery was characterized electrochemically by constant current charge-discharge cycling.
Keywords:
LiFePO4 / cathode materials / Li-ion secondary batteries / hydrothermal synthesisSource:
Programme and The Book of Abstracts / Eleventh Annual Conference YUCOMAT 2009, Herceg Novi, August 31 – September 4, 2009, 2009, 91-91Publisher:
- Belgrade : Institute of Technical Sciences of SASA
Funding / projects:
- Sinteza funkcionalnih materijala sa kontrolisanom strukturom na molekularnom i nano nivou (RS-142006)
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - CONF AU - Jović, Maja AU - Stojanović, Zoran S. AU - Veselinović, Ljiljana AU - Uskoković, Dragan PY - 2009 UR - https://dais.sanu.ac.rs/123456789/4936 AB - Phospho-olivine LiFePO4 have been intensively studied as lithium insertion cathode materials for next generation of Li-ion secondary batteries. LiFePO4 has an interesting theoretical specific capacity of about 170 mAhg-1, a good cycle stability and technically attractive flat voltage versus current profile of 3.45 V versus Li+/Li. A further advantage of this material, thanks to its stability, is the improved safety at high temperatures. In this work, LiFePO4 was prepared by hydrothermal reaction starting from water solutions of LiOH, FeSO4 and H3PO4. After hydrothermal reaction the obtained powder was heat treated in reduction atmosphere to avoid oxidation of Fe2+ to Fe3+. Powder was additionally treated by high energy ball-milling. The structural and morphological properties of LiFePO4 powder was characterized by X- ray diffraction and scanning electron microscopy. LiFePO4/Li battery was characterized electrochemically by constant current charge-discharge cycling. PB - Belgrade : Institute of Technical Sciences of SASA C3 - Programme and The Book of Abstracts / Eleventh Annual Conference YUCOMAT 2009, Herceg Novi, August 31 – September 4, 2009 T1 - Hydrothermal synthesis of LiFePO4 powders as cathode material for li-ion batteries SP - 91 EP - 91 UR - https://hdl.handle.net/21.15107/rcub_dais_4936 ER -
@conference{ author = "Jović, Maja and Stojanović, Zoran S. and Veselinović, Ljiljana and Uskoković, Dragan", year = "2009", abstract = "Phospho-olivine LiFePO4 have been intensively studied as lithium insertion cathode materials for next generation of Li-ion secondary batteries. LiFePO4 has an interesting theoretical specific capacity of about 170 mAhg-1, a good cycle stability and technically attractive flat voltage versus current profile of 3.45 V versus Li+/Li. A further advantage of this material, thanks to its stability, is the improved safety at high temperatures. In this work, LiFePO4 was prepared by hydrothermal reaction starting from water solutions of LiOH, FeSO4 and H3PO4. After hydrothermal reaction the obtained powder was heat treated in reduction atmosphere to avoid oxidation of Fe2+ to Fe3+. Powder was additionally treated by high energy ball-milling. The structural and morphological properties of LiFePO4 powder was characterized by X- ray diffraction and scanning electron microscopy. LiFePO4/Li battery was characterized electrochemically by constant current charge-discharge cycling.", publisher = "Belgrade : Institute of Technical Sciences of SASA", journal = "Programme and The Book of Abstracts / Eleventh Annual Conference YUCOMAT 2009, Herceg Novi, August 31 – September 4, 2009", title = "Hydrothermal synthesis of LiFePO4 powders as cathode material for li-ion batteries", pages = "91-91", url = "https://hdl.handle.net/21.15107/rcub_dais_4936" }
Jović, M., Stojanović, Z. S., Veselinović, L.,& Uskoković, D.. (2009). Hydrothermal synthesis of LiFePO4 powders as cathode material for li-ion batteries. in Programme and The Book of Abstracts / Eleventh Annual Conference YUCOMAT 2009, Herceg Novi, August 31 – September 4, 2009 Belgrade : Institute of Technical Sciences of SASA., 91-91. https://hdl.handle.net/21.15107/rcub_dais_4936
Jović M, Stojanović ZS, Veselinović L, Uskoković D. Hydrothermal synthesis of LiFePO4 powders as cathode material for li-ion batteries. in Programme and The Book of Abstracts / Eleventh Annual Conference YUCOMAT 2009, Herceg Novi, August 31 – September 4, 2009. 2009;:91-91. https://hdl.handle.net/21.15107/rcub_dais_4936 .
Jović, Maja, Stojanović, Zoran S., Veselinović, Ljiljana, Uskoković, Dragan, "Hydrothermal synthesis of LiFePO4 powders as cathode material for li-ion batteries" in Programme and The Book of Abstracts / Eleventh Annual Conference YUCOMAT 2009, Herceg Novi, August 31 – September 4, 2009 (2009):91-91, https://hdl.handle.net/21.15107/rcub_dais_4936 .