The synergy of dis‐/ordering ensures the superior comprehensive performance of P2‐type Na‐based layered oxide cathodes
Abstract Two kinds of crystal orderings in layered oxides typically exhibit opposite influences on performances: Na+/vacancy ordering in alkali metal layers with an unfavorable effect on electrochemical performance and the cation ordering in transition metal layers with a positive effect on air stab...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-03-01
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| Series: | Carbon Neutralization |
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| Online Access: | https://doi.org/10.1002/cnl2.53 |
| _version_ | 1797829195662884864 |
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| author | Lu Gan Xin‐Guang Yuan Jia‐Jun Han Jiaxin Li Lituo Zheng Hu‐Rong Yao |
| author_facet | Lu Gan Xin‐Guang Yuan Jia‐Jun Han Jiaxin Li Lituo Zheng Hu‐Rong Yao |
| author_sort | Lu Gan |
| collection | DOAJ |
| description | Abstract Two kinds of crystal orderings in layered oxides typically exhibit opposite influences on performances: Na+/vacancy ordering in alkali metal layers with an unfavorable effect on electrochemical performance and the cation ordering in transition metal layers with a positive effect on air stability. However, because the two kinds of orderings are associated with each other and often occur at the same time, it is difficult to achieve an excellent comprehensive performance. Herein, we propose a strategy of introducing a new cation ordering to construct the coexistence of Na+ disordering and transition metal ordering. An absolute solid‐solution reaction mechanism is realized in the Na+ disordered system, resulting in a superior cycling stability of 90.4% retention after 150 cycles and a rate performance of 82.7 mAh g−1 capacity at 10C, much higher than the original 81.3% and 66.4 mAh g−1. Simultaneously, the cation ordering strengthens the interlayer interaction and inhibits the insertion of water molecules from the air, ensuring stable lattice stability and thermostability after air exposure. The synergy of dis‐/ordering configuration provides new insights to design high‐performance layered oxide cathode materials for secondary‐ion batteries. |
| first_indexed | 2024-04-09T13:16:30Z |
| format | Article |
| id | doaj.art-41094577f4c8408d81c39e8a98823b36 |
| institution | Directory Open Access Journal |
| issn | 2769-3325 |
| language | English |
| last_indexed | 2024-04-09T13:16:30Z |
| publishDate | 2023-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Carbon Neutralization |
| spelling | doaj.art-41094577f4c8408d81c39e8a98823b362023-05-11T17:25:26ZengWileyCarbon Neutralization2769-33252023-03-012223524410.1002/cnl2.53The synergy of dis‐/ordering ensures the superior comprehensive performance of P2‐type Na‐based layered oxide cathodesLu Gan0Xin‐Guang Yuan1Jia‐Jun Han2Jiaxin Li3Lituo Zheng4Hu‐Rong Yao5Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, College of Physics and Energy Fujian Normal University Fuzhou ChinaFujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, College of Physics and Energy Fujian Normal University Fuzhou ChinaFujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, College of Physics and Energy Fujian Normal University Fuzhou ChinaFujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, College of Physics and Energy Fujian Normal University Fuzhou ChinaFujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, College of Physics and Energy Fujian Normal University Fuzhou ChinaFujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, College of Physics and Energy Fujian Normal University Fuzhou ChinaAbstract Two kinds of crystal orderings in layered oxides typically exhibit opposite influences on performances: Na+/vacancy ordering in alkali metal layers with an unfavorable effect on electrochemical performance and the cation ordering in transition metal layers with a positive effect on air stability. However, because the two kinds of orderings are associated with each other and often occur at the same time, it is difficult to achieve an excellent comprehensive performance. Herein, we propose a strategy of introducing a new cation ordering to construct the coexistence of Na+ disordering and transition metal ordering. An absolute solid‐solution reaction mechanism is realized in the Na+ disordered system, resulting in a superior cycling stability of 90.4% retention after 150 cycles and a rate performance of 82.7 mAh g−1 capacity at 10C, much higher than the original 81.3% and 66.4 mAh g−1. Simultaneously, the cation ordering strengthens the interlayer interaction and inhibits the insertion of water molecules from the air, ensuring stable lattice stability and thermostability after air exposure. The synergy of dis‐/ordering configuration provides new insights to design high‐performance layered oxide cathode materials for secondary‐ion batteries.https://doi.org/10.1002/cnl2.53comprehensive performancelayered oxidesNa+/vacancy disorderingsodium‐ion batteriestransition meal ordering |
| spellingShingle | Lu Gan Xin‐Guang Yuan Jia‐Jun Han Jiaxin Li Lituo Zheng Hu‐Rong Yao The synergy of dis‐/ordering ensures the superior comprehensive performance of P2‐type Na‐based layered oxide cathodes Carbon Neutralization comprehensive performance layered oxides Na+/vacancy disordering sodium‐ion batteries transition meal ordering |
| title | The synergy of dis‐/ordering ensures the superior comprehensive performance of P2‐type Na‐based layered oxide cathodes |
| title_full | The synergy of dis‐/ordering ensures the superior comprehensive performance of P2‐type Na‐based layered oxide cathodes |
| title_fullStr | The synergy of dis‐/ordering ensures the superior comprehensive performance of P2‐type Na‐based layered oxide cathodes |
| title_full_unstemmed | The synergy of dis‐/ordering ensures the superior comprehensive performance of P2‐type Na‐based layered oxide cathodes |
| title_short | The synergy of dis‐/ordering ensures the superior comprehensive performance of P2‐type Na‐based layered oxide cathodes |
| title_sort | synergy of dis ordering ensures the superior comprehensive performance of p2 type na based layered oxide cathodes |
| topic | comprehensive performance layered oxides Na+/vacancy disordering sodium‐ion batteries transition meal ordering |
| url | https://doi.org/10.1002/cnl2.53 |
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