NaTiOx‐modified high‐nickel layered oxide cathode for stable sodium‐ion batteries
Abstract The O3‐type layered cathode with high Ni content has attracted much attention because of its high capacity and simple synthesis process. However, surface side reaction and O3–P3 phase transitions would occur during Na+ insertion/extraction, resulting in unsatisfying electrochemical performa...
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| Format: | Article |
| Language: | English |
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Wiley
2025-01-01
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| Series: | Carbon Energy |
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| Online Access: | https://doi.org/10.1002/cey2.627 |
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| author | Yingcong Liu Xing Zhou Dongwei He Xiaowei Liu Chao Yang Dawei Xu Meilong Wang Ruitao Sun Bin Zhang Jingjing Xie Jin Han Wen Chen Ya You |
| author_facet | Yingcong Liu Xing Zhou Dongwei He Xiaowei Liu Chao Yang Dawei Xu Meilong Wang Ruitao Sun Bin Zhang Jingjing Xie Jin Han Wen Chen Ya You |
| author_sort | Yingcong Liu |
| collection | DOAJ |
| description | Abstract The O3‐type layered cathode with high Ni content has attracted much attention because of its high capacity and simple synthesis process. However, surface side reaction and O3–P3 phase transitions would occur during Na+ insertion/extraction, resulting in unsatisfying electrochemical performance. Herein, O3‐Na[Ni0.6Co0.2Mn0.2]O2 (NNCM622) cathode is modified by a NaTiOx coating layer in a wet chemistry method, which reduces the parasitic reaction and facilitates Na+ migration. Simultaneously, the partially doped Ti improves structural stability by restraining the irreversible multiple‐phase transition. As a result, the modified NNCM622 cathode obtains a high specific capacity of 143.4 mAh g−1 and an improved capacity retention of 69% after 300 cycles. Our work offers new prospects for stabilizing the NNCM622 cathode with a feasible coating strategy. |
| format | Article |
| id | doaj-art-13615c10eb5148eea13d60e77a809190 |
| institution | Kabale University |
| issn | 2637-9368 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Carbon Energy |
| spelling | doaj-art-13615c10eb5148eea13d60e77a8091902025-01-24T13:35:41ZengWileyCarbon Energy2637-93682025-01-0171n/an/a10.1002/cey2.627NaTiOx‐modified high‐nickel layered oxide cathode for stable sodium‐ion batteriesYingcong Liu0Xing Zhou1Dongwei He2Xiaowei Liu3Chao Yang4Dawei Xu5Meilong Wang6Ruitao Sun7Bin Zhang8Jingjing Xie9Jin Han10Wen Chen11Ya You12State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan ChinaYibin Libode New Materials Co. Ltd Sichuan ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan ChinaInternational School of Materials Science and Engineering, School of Materials Science and Microelectronics Wuhan University of Technology Wuhan ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan ChinaAbstract The O3‐type layered cathode with high Ni content has attracted much attention because of its high capacity and simple synthesis process. However, surface side reaction and O3–P3 phase transitions would occur during Na+ insertion/extraction, resulting in unsatisfying electrochemical performance. Herein, O3‐Na[Ni0.6Co0.2Mn0.2]O2 (NNCM622) cathode is modified by a NaTiOx coating layer in a wet chemistry method, which reduces the parasitic reaction and facilitates Na+ migration. Simultaneously, the partially doped Ti improves structural stability by restraining the irreversible multiple‐phase transition. As a result, the modified NNCM622 cathode obtains a high specific capacity of 143.4 mAh g−1 and an improved capacity retention of 69% after 300 cycles. Our work offers new prospects for stabilizing the NNCM622 cathode with a feasible coating strategy.https://doi.org/10.1002/cey2.627cathodehigh‐nickel layered oxidessodium‐ion batterysurface modification |
| spellingShingle | Yingcong Liu Xing Zhou Dongwei He Xiaowei Liu Chao Yang Dawei Xu Meilong Wang Ruitao Sun Bin Zhang Jingjing Xie Jin Han Wen Chen Ya You NaTiOx‐modified high‐nickel layered oxide cathode for stable sodium‐ion batteries Carbon Energy cathode high‐nickel layered oxides sodium‐ion battery surface modification |
| title | NaTiOx‐modified high‐nickel layered oxide cathode for stable sodium‐ion batteries |
| title_full | NaTiOx‐modified high‐nickel layered oxide cathode for stable sodium‐ion batteries |
| title_fullStr | NaTiOx‐modified high‐nickel layered oxide cathode for stable sodium‐ion batteries |
| title_full_unstemmed | NaTiOx‐modified high‐nickel layered oxide cathode for stable sodium‐ion batteries |
| title_short | NaTiOx‐modified high‐nickel layered oxide cathode for stable sodium‐ion batteries |
| title_sort | natiox modified high nickel layered oxide cathode for stable sodium ion batteries |
| topic | cathode high‐nickel layered oxides sodium‐ion battery surface modification |
| url | https://doi.org/10.1002/cey2.627 |
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