Structural and electrochemical properties of gamma LiV2O5 cathode
2021
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For its capability to reversibly remove and insert lithium ions in the range of 0 ≤ x ≤ 1.4, gamma polymorph phase of Li x V2 O5 makes a solid candidate for cathode application in rechargeable batteries. Accommodation of lithium in concentrations higher than x ≈1.4 brings stability issues related to the transformation towards the metastable ζ phase, which significantly limits utilization of higher capacities the material could achieve. The presented investigation has been conducted on γ-LiV2 O5 powder obtained via solid state reaction at high temperatures. Structural refinement of the prepared γ phase has been carried out. Based on bond valence analysis of γ as well as of metastable γ’ and ζ phase, which occur at low and high lithium concentrations, respectively, mechanism is proposed for the observed capacity decrease. Electrochemical characteristics of γ-LiV2 O5 were investigated in both aqueous and organic electrolyte in the voltage range 4-2.3 V vs. Li + /Li in order to record perf...ormances of all three occurring phases, γ and both lithium poor γ’ (high voltage region) and lithium rich ζ (low voltage region). Ionic exchange of Li + with Mg2+ , Ca 2+ and Al 3+ in their respective aqueous electrolytes has been conducted to examine potential use of the material in the post- lithium rechargeable batteries.
Izvor:
Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade, 2021, 84-Izdavač:
- Belgrade : Serbian Ceramic Society
Napomena:
- IX Serbian Ceramic Society Conference - Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts; September 20-21, 2021; Belgrade
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Institucija/grupa
VinčaTY - CONF AU - Milović, Miloš AU - Vujković, Milica AU - Jugović, Dragana AU - Mitrić, Miodrag PY - 2021 UR - https://vinar.vin.bg.ac.rs/handle/123456789/10842 AB - For its capability to reversibly remove and insert lithium ions in the range of 0 ≤ x ≤ 1.4, gamma polymorph phase of Li x V2 O5 makes a solid candidate for cathode application in rechargeable batteries. Accommodation of lithium in concentrations higher than x ≈1.4 brings stability issues related to the transformation towards the metastable ζ phase, which significantly limits utilization of higher capacities the material could achieve. The presented investigation has been conducted on γ-LiV2 O5 powder obtained via solid state reaction at high temperatures. Structural refinement of the prepared γ phase has been carried out. Based on bond valence analysis of γ as well as of metastable γ’ and ζ phase, which occur at low and high lithium concentrations, respectively, mechanism is proposed for the observed capacity decrease. Electrochemical characteristics of γ-LiV2 O5 were investigated in both aqueous and organic electrolyte in the voltage range 4-2.3 V vs. Li + /Li in order to record performances of all three occurring phases, γ and both lithium poor γ’ (high voltage region) and lithium rich ζ (low voltage region). Ionic exchange of Li + with Mg2+ , Ca 2+ and Al 3+ in their respective aqueous electrolytes has been conducted to examine potential use of the material in the post- lithium rechargeable batteries. PB - Belgrade : Serbian Ceramic Society C3 - Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade T1 - Structural and electrochemical properties of gamma LiV2O5 cathode SP - 84 UR - https://hdl.handle.net/21.15107/rcub_vinar_10842 ER -
@conference{ author = "Milović, Miloš and Vujković, Milica and Jugović, Dragana and Mitrić, Miodrag", year = "2021", abstract = "For its capability to reversibly remove and insert lithium ions in the range of 0 ≤ x ≤ 1.4, gamma polymorph phase of Li x V2 O5 makes a solid candidate for cathode application in rechargeable batteries. Accommodation of lithium in concentrations higher than x ≈1.4 brings stability issues related to the transformation towards the metastable ζ phase, which significantly limits utilization of higher capacities the material could achieve. The presented investigation has been conducted on γ-LiV2 O5 powder obtained via solid state reaction at high temperatures. Structural refinement of the prepared γ phase has been carried out. Based on bond valence analysis of γ as well as of metastable γ’ and ζ phase, which occur at low and high lithium concentrations, respectively, mechanism is proposed for the observed capacity decrease. Electrochemical characteristics of γ-LiV2 O5 were investigated in both aqueous and organic electrolyte in the voltage range 4-2.3 V vs. Li + /Li in order to record performances of all three occurring phases, γ and both lithium poor γ’ (high voltage region) and lithium rich ζ (low voltage region). Ionic exchange of Li + with Mg2+ , Ca 2+ and Al 3+ in their respective aqueous electrolytes has been conducted to examine potential use of the material in the post- lithium rechargeable batteries.", publisher = "Belgrade : Serbian Ceramic Society", journal = "Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade", title = "Structural and electrochemical properties of gamma LiV2O5 cathode", pages = "84", url = "https://hdl.handle.net/21.15107/rcub_vinar_10842" }
Milović, M., Vujković, M., Jugović, D.,& Mitrić, M.. (2021). Structural and electrochemical properties of gamma LiV2O5 cathode. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade Belgrade : Serbian Ceramic Society., 84. https://hdl.handle.net/21.15107/rcub_vinar_10842
Milović M, Vujković M, Jugović D, Mitrić M. Structural and electrochemical properties of gamma LiV2O5 cathode. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade. 2021;:84. https://hdl.handle.net/21.15107/rcub_vinar_10842 .
Milović, Miloš, Vujković, Milica, Jugović, Dragana, Mitrić, Miodrag, "Structural and electrochemical properties of gamma LiV2O5 cathode" in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade (2021):84, https://hdl.handle.net/21.15107/rcub_vinar_10842 .