Li-doped transition metal high-entropy oxides (Li/TM-HEOs) as Li-Ion batteries cathodes: a first report on capacity fading and cycling stability
High-Entropy Oxides (HEOs) have gained significant attention for their wide range of compositions and potential applications across various sectors, including rechargeable batteries. This study explores the characterization of two distinct HEO systems as potential cathode materials for Lithium-ion b...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2024-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ad36b4 |
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| author | Luca Spiridigliozzi Andrea Filippo Di Feo Grazia Accardo Uxue Gonzalez Mendizabal Emanuele Di Bona Gianfranco Dell’Agli |
| author_facet | Luca Spiridigliozzi Andrea Filippo Di Feo Grazia Accardo Uxue Gonzalez Mendizabal Emanuele Di Bona Gianfranco Dell’Agli |
| author_sort | Luca Spiridigliozzi |
| collection | DOAJ |
| description | High-Entropy Oxides (HEOs) have gained significant attention for their wide range of compositions and potential applications across various sectors, including rechargeable batteries. This study explores the characterization of two distinct HEO systems as potential cathode materials for Lithium-ion batteries (LIBs). A series of rock salt structured HEOs with varying Li loadings (16Li/RS-HEO, 25Li/RS-HEO, 33Li/RS-HEO, and 41Li/RS-HEO) and a spinel-structured HEO with 16 mol% of Li loading (16Li/SP-HEO) were firstly synthesized through co-precipitation. Electrochemical analyses via cyclic voltammetry revealed stark differences in the behavior of these structures. The Li/SP-HEO sample displayed broad and strongly irreversible hysteresis cycles, while the Li/RS-HEO series manifested thin, narrow hysteresis cycles with single oxidation peaks between 0.5 V and 0.7 V. As the lithium content increases in the RS-HEO system, the cycling stability of the cell decreases, most likely due to the reduced ratio of transition metal cations to lithium ions. Although there was a noticeable decrease in capacity under higher current rates, the higher lithium loadings positively impact the cell capacity, albeit with notable capacity fading under higher current rates. Li-doped rock salt structured high entropy materials show potential for LIB cathodes in terms of high specific capacities; the observed stability issues at medium and high current densities indicate a rapid electrode degradation. |
| first_indexed | 2024-04-24T13:12:49Z |
| format | Article |
| id | doaj.art-6c8afea85fe54f228bd3e1dffc5834f4 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-04-24T13:12:49Z |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-6c8afea85fe54f228bd3e1dffc5834f42024-04-05T04:10:09ZengIOP PublishingMaterials Research Express2053-15912024-01-0111404550410.1088/2053-1591/ad36b4Li-doped transition metal high-entropy oxides (Li/TM-HEOs) as Li-Ion batteries cathodes: a first report on capacity fading and cycling stabilityLuca Spiridigliozzi0Andrea Filippo Di Feo1Grazia Accardo2Uxue Gonzalez Mendizabal3Emanuele Di Bona4Gianfranco Dell’Agli5https://orcid.org/0000-0001-7690-846XDepartment of Civil and Mechanical Engineering, University of Cassino and Southern Lazio , Via G. Di Biasio 43, 03043 Cassino (FR), ItalyDepartment of Civil and Mechanical Engineering, University of Cassino and Southern Lazio , Via G. Di Biasio 43, 03043 Cassino (FR), ItalyCentre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510, Vitoria-Gasteiz, SpainCentre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510, Vitoria-Gasteiz, SpainDepartment of Industrial Engineering, University of Trento , Via Sommarive 9, 38123 Trento, ItalyDepartment of Civil and Mechanical Engineering, University of Cassino and Southern Lazio , Via G. Di Biasio 43, 03043 Cassino (FR), Italy; INSTM—National Interuniversity Consortium of Materials Science and Technology, Via G. Giusti 9, 50121 Florence, ItalyHigh-Entropy Oxides (HEOs) have gained significant attention for their wide range of compositions and potential applications across various sectors, including rechargeable batteries. This study explores the characterization of two distinct HEO systems as potential cathode materials for Lithium-ion batteries (LIBs). A series of rock salt structured HEOs with varying Li loadings (16Li/RS-HEO, 25Li/RS-HEO, 33Li/RS-HEO, and 41Li/RS-HEO) and a spinel-structured HEO with 16 mol% of Li loading (16Li/SP-HEO) were firstly synthesized through co-precipitation. Electrochemical analyses via cyclic voltammetry revealed stark differences in the behavior of these structures. The Li/SP-HEO sample displayed broad and strongly irreversible hysteresis cycles, while the Li/RS-HEO series manifested thin, narrow hysteresis cycles with single oxidation peaks between 0.5 V and 0.7 V. As the lithium content increases in the RS-HEO system, the cycling stability of the cell decreases, most likely due to the reduced ratio of transition metal cations to lithium ions. Although there was a noticeable decrease in capacity under higher current rates, the higher lithium loadings positively impact the cell capacity, albeit with notable capacity fading under higher current rates. Li-doped rock salt structured high entropy materials show potential for LIB cathodes in terms of high specific capacities; the observed stability issues at medium and high current densities indicate a rapid electrode degradation.https://doi.org/10.1088/2053-1591/ad36b4high-entropy oxidesLi-Ion BatteriesCo-precipitationNMRCyclicvoltammetry |
| spellingShingle | Luca Spiridigliozzi Andrea Filippo Di Feo Grazia Accardo Uxue Gonzalez Mendizabal Emanuele Di Bona Gianfranco Dell’Agli Li-doped transition metal high-entropy oxides (Li/TM-HEOs) as Li-Ion batteries cathodes: a first report on capacity fading and cycling stability Materials Research Express high-entropy oxides Li-Ion Batteries Co-precipitation NMR Cyclicvoltammetry |
| title | Li-doped transition metal high-entropy oxides (Li/TM-HEOs) as Li-Ion batteries cathodes: a first report on capacity fading and cycling stability |
| title_full | Li-doped transition metal high-entropy oxides (Li/TM-HEOs) as Li-Ion batteries cathodes: a first report on capacity fading and cycling stability |
| title_fullStr | Li-doped transition metal high-entropy oxides (Li/TM-HEOs) as Li-Ion batteries cathodes: a first report on capacity fading and cycling stability |
| title_full_unstemmed | Li-doped transition metal high-entropy oxides (Li/TM-HEOs) as Li-Ion batteries cathodes: a first report on capacity fading and cycling stability |
| title_short | Li-doped transition metal high-entropy oxides (Li/TM-HEOs) as Li-Ion batteries cathodes: a first report on capacity fading and cycling stability |
| title_sort | li doped transition metal high entropy oxides li tm heos as li ion batteries cathodes a first report on capacity fading and cycling stability |
| topic | high-entropy oxides Li-Ion Batteries Co-precipitation NMR Cyclicvoltammetry |
| url | https://doi.org/10.1088/2053-1591/ad36b4 |
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