Layered CaV2O6 as promising electrode material for multivalent storage
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While the world is facing a higher demand for lithium, its limited resources associated with the high price, are becoming problematic. Other crucial drawbacks of Li-ion batteries are their toxicity and safety concerns. Therefore, researchers are oriented towards development of non-Li batteries based on eco-friendly and earth-abundant materials to overcome drawbacks of Li-ion technology. Alternative abundant metals and their ions such as Mg and Ca could be a good choice for rechargeable batteries in terms of cost and eco-friendliness. Mg2+ and Ca2+ ions could transfer two electrons per redox process which theoretically has a positive effect on battery performance. The materials upon which multivalent ions will intercalate with fast diffusion rate are hard to find. Metal vanadium oxide (MxVyOz) materials become promising materials for rechargeable batteries, so herein, a standard sol-gel combustion route was used for the preparation of the CaV2O6 layered precursor. Two samples are synthe...sized from the vanadate precursor, the first when it was heated at 400 °C (CaVO) and the second when CaVO was integrated with 10 wt % of sucrose under thermal treatment at 400 °C, in Ar atmosphere (CaVO/C). Obtained CaVO and CaVO/C powders were thoroughly characterized by XRD, TG-DTA, FTIR, and Raman spectroscopy. The electrochemical performance of the obtained samples was evaluated for multivalent-ion storage in saturated aqueous electrolytic solutions of Mg (NO3)2 and Ca (NO3)2 by cyclic voltammetry and chronopotentiometry. For comparison, measurements were also done in saturated LiNO3. Results indicated that CaVO can store more Li+ ions than Mg2+ and Ca2+ ions, but CaVO in LiNO3 shows a substantial loss of capacity upon cycling, which is not observed in the case of Mg (NO3)2 and Ca (NO3)2. On the other hand, CaVO/C composite showed a significant improvement for Ca an Mg storage capacity, which exceeded capacity storage of Li+ ions. The high and stable discharge capacity of CaVO/C, amounting to 89.3 mA h g−1 at 0.5 A g-1, was obtained in Ca (NO3)2. Obtained results are promising and open novel directions regarding the use of CaV2O6 for multivalent rechargeable batteries, especially for Ca-ion batteries.
Кључне речи:
rechargeable batteries / multivalent storage / CaV2O6 / electrochemical performanceИзвор:
Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia, 2021, 53-53Издавач:
- Belgrade : Institute of Technical Sciences of SASA
Финансирање / пројекти:
- HiSuperBat - High-Capacity Electrodes for Aqueous Rechargeable Multivalent-Ion Batteries and Supercapacitors: Next Step Towards a Hybrid Model (RS-ScienceFundRS-Promis-6062667)
Институција/група
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - CONF AU - Petrović, Tamara AU - Milović, Miloš AU - Bajuk Bogdanović, Danica AU - Vujković, Milica PY - 2021 UR - https://dais.sanu.ac.rs/123456789/12275 AB - While the world is facing a higher demand for lithium, its limited resources associated with the high price, are becoming problematic. Other crucial drawbacks of Li-ion batteries are their toxicity and safety concerns. Therefore, researchers are oriented towards development of non-Li batteries based on eco-friendly and earth-abundant materials to overcome drawbacks of Li-ion technology. Alternative abundant metals and their ions such as Mg and Ca could be a good choice for rechargeable batteries in terms of cost and eco-friendliness. Mg2+ and Ca2+ ions could transfer two electrons per redox process which theoretically has a positive effect on battery performance. The materials upon which multivalent ions will intercalate with fast diffusion rate are hard to find. Metal vanadium oxide (MxVyOz) materials become promising materials for rechargeable batteries, so herein, a standard sol-gel combustion route was used for the preparation of the CaV2O6 layered precursor. Two samples are synthesized from the vanadate precursor, the first when it was heated at 400 °C (CaVO) and the second when CaVO was integrated with 10 wt % of sucrose under thermal treatment at 400 °C, in Ar atmosphere (CaVO/C). Obtained CaVO and CaVO/C powders were thoroughly characterized by XRD, TG-DTA, FTIR, and Raman spectroscopy. The electrochemical performance of the obtained samples was evaluated for multivalent-ion storage in saturated aqueous electrolytic solutions of Mg (NO3)2 and Ca (NO3)2 by cyclic voltammetry and chronopotentiometry. For comparison, measurements were also done in saturated LiNO3. Results indicated that CaVO can store more Li+ ions than Mg2+ and Ca2+ ions, but CaVO in LiNO3 shows a substantial loss of capacity upon cycling, which is not observed in the case of Mg (NO3)2 and Ca (NO3)2. On the other hand, CaVO/C composite showed a significant improvement for Ca an Mg storage capacity, which exceeded capacity storage of Li+ ions. The high and stable discharge capacity of CaVO/C, amounting to 89.3 mA h g−1 at 0.5 A g-1, was obtained in Ca (NO3)2. Obtained results are promising and open novel directions regarding the use of CaV2O6 for multivalent rechargeable batteries, especially for Ca-ion batteries. PB - Belgrade : Institute of Technical Sciences of SASA C3 - Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia T1 - Layered CaV2O6 as promising electrode material for multivalent storage SP - 53 EP - 53 UR - https://hdl.handle.net/21.15107/rcub_dais_12275 ER -
@conference{ author = "Petrović, Tamara and Milović, Miloš and Bajuk Bogdanović, Danica and Vujković, Milica", year = "2021", abstract = "While the world is facing a higher demand for lithium, its limited resources associated with the high price, are becoming problematic. Other crucial drawbacks of Li-ion batteries are their toxicity and safety concerns. Therefore, researchers are oriented towards development of non-Li batteries based on eco-friendly and earth-abundant materials to overcome drawbacks of Li-ion technology. Alternative abundant metals and their ions such as Mg and Ca could be a good choice for rechargeable batteries in terms of cost and eco-friendliness. Mg2+ and Ca2+ ions could transfer two electrons per redox process which theoretically has a positive effect on battery performance. The materials upon which multivalent ions will intercalate with fast diffusion rate are hard to find. Metal vanadium oxide (MxVyOz) materials become promising materials for rechargeable batteries, so herein, a standard sol-gel combustion route was used for the preparation of the CaV2O6 layered precursor. Two samples are synthesized from the vanadate precursor, the first when it was heated at 400 °C (CaVO) and the second when CaVO was integrated with 10 wt % of sucrose under thermal treatment at 400 °C, in Ar atmosphere (CaVO/C). Obtained CaVO and CaVO/C powders were thoroughly characterized by XRD, TG-DTA, FTIR, and Raman spectroscopy. The electrochemical performance of the obtained samples was evaluated for multivalent-ion storage in saturated aqueous electrolytic solutions of Mg (NO3)2 and Ca (NO3)2 by cyclic voltammetry and chronopotentiometry. For comparison, measurements were also done in saturated LiNO3. Results indicated that CaVO can store more Li+ ions than Mg2+ and Ca2+ ions, but CaVO in LiNO3 shows a substantial loss of capacity upon cycling, which is not observed in the case of Mg (NO3)2 and Ca (NO3)2. On the other hand, CaVO/C composite showed a significant improvement for Ca an Mg storage capacity, which exceeded capacity storage of Li+ ions. The high and stable discharge capacity of CaVO/C, amounting to 89.3 mA h g−1 at 0.5 A g-1, was obtained in Ca (NO3)2. Obtained results are promising and open novel directions regarding the use of CaV2O6 for multivalent rechargeable batteries, especially for Ca-ion batteries.", publisher = "Belgrade : Institute of Technical Sciences of SASA", journal = "Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia", title = "Layered CaV2O6 as promising electrode material for multivalent storage", pages = "53-53", url = "https://hdl.handle.net/21.15107/rcub_dais_12275" }
Petrović, T., Milović, M., Bajuk Bogdanović, D.,& Vujković, M.. (2021). Layered CaV2O6 as promising electrode material for multivalent storage. in Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia Belgrade : Institute of Technical Sciences of SASA., 53-53. https://hdl.handle.net/21.15107/rcub_dais_12275
Petrović T, Milović M, Bajuk Bogdanović D, Vujković M. Layered CaV2O6 as promising electrode material for multivalent storage. in Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia. 2021;:53-53. https://hdl.handle.net/21.15107/rcub_dais_12275 .
Petrović, Tamara, Milović, Miloš, Bajuk Bogdanović, Danica, Vujković, Milica, "Layered CaV2O6 as promising electrode material for multivalent storage" in Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia (2021):53-53, https://hdl.handle.net/21.15107/rcub_dais_12275 .