The incorporation of vanadium into olivine LiFePO4/C: improvement of lithium intercalation from both organic and aqueous electrolyte

2013
Authors
Vujković, Milica
Jugović, Dragana

Mitrić, Miodrag

Stojković Simatović, Ivana

Cvjetićanin, Nikola

Mentus, Slavko

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The simple and fast (malonic acid+glycine)-assisted gel-combustion process, followed by a heat treatment at 750oC under reductive atmosphere, is found to be a very effective way for the synthesis of (V-doped LiFePO4)/C composites. The Rietveld refinement confirms that vanadium incorporation into olivine structure was accompanied by the formation of iron phosphide conducting phase. The coulombic capacity and rate capability of (V-doped LiFePO4)/C composite, in both organic and aqueous electrolyte solutions, were significantly improved relative to an undoped sample, as revealed by both galvanostatic cycling and cyclic voltammetry. The average discharging capacities of ~5mol.%V-doped LiFePO4/C composite in an aqueous LiNO3 solution were 91, 73 and 35 mAh g-1 at 1, 10 and 100 C, respectively, with no perceivable capacity fade upon 100 charging/discharging cycles.
Keywords:
lithium iron phosphate and carbon / vanadium doping / olivine structureSource:
The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts, 2013, 101-101Publisher:
- Belgrade : Materials Research Society of Serbia
Funding / projects:
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - CONF AU - Vujković, Milica AU - Jugović, Dragana AU - Mitrić, Miodrag AU - Stojković Simatović, Ivana AU - Cvjetićanin, Nikola AU - Mentus, Slavko PY - 2013 UR - https://dais.sanu.ac.rs/123456789/407 AB - The simple and fast (malonic acid+glycine)-assisted gel-combustion process, followed by a heat treatment at 750oC under reductive atmosphere, is found to be a very effective way for the synthesis of (V-doped LiFePO4)/C composites. The Rietveld refinement confirms that vanadium incorporation into olivine structure was accompanied by the formation of iron phosphide conducting phase. The coulombic capacity and rate capability of (V-doped LiFePO4)/C composite, in both organic and aqueous electrolyte solutions, were significantly improved relative to an undoped sample, as revealed by both galvanostatic cycling and cyclic voltammetry. The average discharging capacities of ~5mol.%V-doped LiFePO4/C composite in an aqueous LiNO3 solution were 91, 73 and 35 mAh g-1 at 1, 10 and 100 C, respectively, with no perceivable capacity fade upon 100 charging/discharging cycles. PB - Belgrade : Materials Research Society of Serbia C3 - The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts T1 - The incorporation of vanadium into olivine LiFePO4/C: improvement of lithium intercalation from both organic and aqueous electrolyte SP - 101 EP - 101 UR - https://hdl.handle.net/21.15107/rcub_dais_407 ER -
@conference{ author = "Vujković, Milica and Jugović, Dragana and Mitrić, Miodrag and Stojković Simatović, Ivana and Cvjetićanin, Nikola and Mentus, Slavko", year = "2013", abstract = "The simple and fast (malonic acid+glycine)-assisted gel-combustion process, followed by a heat treatment at 750oC under reductive atmosphere, is found to be a very effective way for the synthesis of (V-doped LiFePO4)/C composites. The Rietveld refinement confirms that vanadium incorporation into olivine structure was accompanied by the formation of iron phosphide conducting phase. The coulombic capacity and rate capability of (V-doped LiFePO4)/C composite, in both organic and aqueous electrolyte solutions, were significantly improved relative to an undoped sample, as revealed by both galvanostatic cycling and cyclic voltammetry. The average discharging capacities of ~5mol.%V-doped LiFePO4/C composite in an aqueous LiNO3 solution were 91, 73 and 35 mAh g-1 at 1, 10 and 100 C, respectively, with no perceivable capacity fade upon 100 charging/discharging cycles.", publisher = "Belgrade : Materials Research Society of Serbia", journal = "The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts", title = "The incorporation of vanadium into olivine LiFePO4/C: improvement of lithium intercalation from both organic and aqueous electrolyte", pages = "101-101", url = "https://hdl.handle.net/21.15107/rcub_dais_407" }
Vujković, M., Jugović, D., Mitrić, M., Stojković Simatović, I., Cvjetićanin, N.,& Mentus, S.. (2013). The incorporation of vanadium into olivine LiFePO4/C: improvement of lithium intercalation from both organic and aqueous electrolyte. in The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts Belgrade : Materials Research Society of Serbia., 101-101. https://hdl.handle.net/21.15107/rcub_dais_407
Vujković M, Jugović D, Mitrić M, Stojković Simatović I, Cvjetićanin N, Mentus S. The incorporation of vanadium into olivine LiFePO4/C: improvement of lithium intercalation from both organic and aqueous electrolyte. in The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts. 2013;:101-101. https://hdl.handle.net/21.15107/rcub_dais_407 .
Vujković, Milica, Jugović, Dragana, Mitrić, Miodrag, Stojković Simatović, Ivana, Cvjetićanin, Nikola, Mentus, Slavko, "The incorporation of vanadium into olivine LiFePO4/C: improvement of lithium intercalation from both organic and aqueous electrolyte" in The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts (2013):101-101, https://hdl.handle.net/21.15107/rcub_dais_407 .