Integrated rocksalt-polyanion cathodes with excess lithium and stabilized cycling
Co- and Ni-free disordered rocksalt cathodes utilize oxygen redox to increase the energy density of lithium-ion batteries, but it is challenging to achieve good cycle life at high voltages >4.5 V (versus Li/Li+). Here we report a family of Li-excess Mn-rich cathodes that integrates rocksalt- and...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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Springer Nature
2024
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| Online Access: | https://hdl.handle.net/1721.1/156386 |
| _version_ | 1824457960130084864 |
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| author | Huang, Yimeng Dong, Yanhao Yang, Yang Liu, Tongchao Yoon, Moonsu Li, Sipei Wang, Baoming Zheng, Ethan Yupeng Lee, Jinhyuk Sun, Yongwen Han, Ying Ciston, Jim Ophus, Colin Song, Chengyu Penn, Aubrey Liao, Yaqi Ji, Haijin Shi, Ting Liao, Mengyi Cheng, Zexiao Xiang, Jingwei Peng, Yu Ma, Lu Xiao, Xianghui Kan, Wang Hay Chen, Huaican Yin, Wen Guo, Lingling Liu, Wei-Ren Muruganantham, Rasu Yang, Chun-Chuen Zhu, Yuntong Li, Qingjie Li, Ju |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Huang, Yimeng Dong, Yanhao Yang, Yang Liu, Tongchao Yoon, Moonsu Li, Sipei Wang, Baoming Zheng, Ethan Yupeng Lee, Jinhyuk Sun, Yongwen Han, Ying Ciston, Jim Ophus, Colin Song, Chengyu Penn, Aubrey Liao, Yaqi Ji, Haijin Shi, Ting Liao, Mengyi Cheng, Zexiao Xiang, Jingwei Peng, Yu Ma, Lu Xiao, Xianghui Kan, Wang Hay Chen, Huaican Yin, Wen Guo, Lingling Liu, Wei-Ren Muruganantham, Rasu Yang, Chun-Chuen Zhu, Yuntong Li, Qingjie Li, Ju |
| author_sort | Huang, Yimeng |
| collection | MIT |
| description | Co- and Ni-free disordered rocksalt cathodes utilize oxygen redox to increase the energy density of lithium-ion batteries, but it is challenging to achieve good cycle life at high voltages >4.5 V (versus Li/Li+). Here we report a family of Li-excess Mn-rich cathodes that integrates rocksalt- and polyanion-type structures. Following design rules for cation filling and ordering, we demonstrate the bulk incorporation of polyanion groups into the rocksalt lattice. This integration bridges the two primary families of lithium-ion battery cathodes—layered/spinel and phosphate oxides—dramatically enhancing the cycling stability of disordered rocksalt cathodes with 4.8 V upper cut-off voltage. The cathode exhibits high gravimetric energy densities above 1,100 Wh kg−1 and >70% retention over 100 cycles. This study opens up a broad compositional space for developing battery cathodes using earth-abundant elements such as Mn and Fe. |
| first_indexed | 2024-09-23T09:33:51Z |
| format | Article |
| id | mit-1721.1/156386 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2025-02-19T04:18:17Z |
| publishDate | 2024 |
| publisher | Springer Nature |
| record_format | dspace |
| spelling | mit-1721.1/1563862024-12-23T05:37:35Z Integrated rocksalt-polyanion cathodes with excess lithium and stabilized cycling Huang, Yimeng Dong, Yanhao Yang, Yang Liu, Tongchao Yoon, Moonsu Li, Sipei Wang, Baoming Zheng, Ethan Yupeng Lee, Jinhyuk Sun, Yongwen Han, Ying Ciston, Jim Ophus, Colin Song, Chengyu Penn, Aubrey Liao, Yaqi Ji, Haijin Shi, Ting Liao, Mengyi Cheng, Zexiao Xiang, Jingwei Peng, Yu Ma, Lu Xiao, Xianghui Kan, Wang Hay Chen, Huaican Yin, Wen Guo, Lingling Liu, Wei-Ren Muruganantham, Rasu Yang, Chun-Chuen Zhu, Yuntong Li, Qingjie Li, Ju Massachusetts Institute of Technology. Department of Materials Science and Engineering Massachusetts Institute of Technology. Department of Nuclear Science and Engineering MIT.nano Co- and Ni-free disordered rocksalt cathodes utilize oxygen redox to increase the energy density of lithium-ion batteries, but it is challenging to achieve good cycle life at high voltages >4.5 V (versus Li/Li+). Here we report a family of Li-excess Mn-rich cathodes that integrates rocksalt- and polyanion-type structures. Following design rules for cation filling and ordering, we demonstrate the bulk incorporation of polyanion groups into the rocksalt lattice. This integration bridges the two primary families of lithium-ion battery cathodes—layered/spinel and phosphate oxides—dramatically enhancing the cycling stability of disordered rocksalt cathodes with 4.8 V upper cut-off voltage. The cathode exhibits high gravimetric energy densities above 1,100 Wh kg−1 and >70% retention over 100 cycles. This study opens up a broad compositional space for developing battery cathodes using earth-abundant elements such as Mn and Fe. 2024-08-23T16:19:31Z 2024-08-23T16:19:31Z 2024-08-23 Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/156386 Huang, Y., Dong, Y., Yang, Y. et al. Integrated rocksalt–polyanion cathodes with excess lithium and stabilized cycling. Nat Energy (2024). en_US 10.1038/s41560-024-01615-6 Nature Energy Creative Commons Attribution-Noncommercial-ShareAlike Attribution-NonCommercial-ShareAlike 4.0 International http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Springer Nature Author |
| spellingShingle | Huang, Yimeng Dong, Yanhao Yang, Yang Liu, Tongchao Yoon, Moonsu Li, Sipei Wang, Baoming Zheng, Ethan Yupeng Lee, Jinhyuk Sun, Yongwen Han, Ying Ciston, Jim Ophus, Colin Song, Chengyu Penn, Aubrey Liao, Yaqi Ji, Haijin Shi, Ting Liao, Mengyi Cheng, Zexiao Xiang, Jingwei Peng, Yu Ma, Lu Xiao, Xianghui Kan, Wang Hay Chen, Huaican Yin, Wen Guo, Lingling Liu, Wei-Ren Muruganantham, Rasu Yang, Chun-Chuen Zhu, Yuntong Li, Qingjie Li, Ju Integrated rocksalt-polyanion cathodes with excess lithium and stabilized cycling |
| title | Integrated rocksalt-polyanion cathodes with excess lithium and stabilized cycling |
| title_full | Integrated rocksalt-polyanion cathodes with excess lithium and stabilized cycling |
| title_fullStr | Integrated rocksalt-polyanion cathodes with excess lithium and stabilized cycling |
| title_full_unstemmed | Integrated rocksalt-polyanion cathodes with excess lithium and stabilized cycling |
| title_short | Integrated rocksalt-polyanion cathodes with excess lithium and stabilized cycling |
| title_sort | integrated rocksalt polyanion cathodes with excess lithium and stabilized cycling |
| url | https://hdl.handle.net/1721.1/156386 |
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