In-cell dehydration of sodium manganese hexacyanoferrate cathode revealed by solid-state NMR
The hard-to-remove lattice water has been regarded as a significant obstacle impeding the practical use of Prussian blue analogue cathodes for sodium-ion batteries. This work monitored the electrochemical evolution of a hydrated monoclinic sodium manganese hexacyanoferrate cathode by solid-state nuc...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co. Ltd.
2025-02-01
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| Series: | Magnetic Resonance Letters |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772516224000421 |
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| author | Zonglin Li Xiaobing Lou Shinuo Kang Dingming Liu Fushan Geng Ming Shen Bingwen Hu |
| author_facet | Zonglin Li Xiaobing Lou Shinuo Kang Dingming Liu Fushan Geng Ming Shen Bingwen Hu |
| author_sort | Zonglin Li |
| collection | DOAJ |
| description | The hard-to-remove lattice water has been regarded as a significant obstacle impeding the practical use of Prussian blue analogue cathodes for sodium-ion batteries. This work monitored the electrochemical evolution of a hydrated monoclinic sodium manganese hexacyanoferrate cathode by solid-state nuclear magnetic resonance (NMR). For the first time, we established a correlation between the chemical shifts of 23Na NMR signals and the presence or absence of lattice water within this cathode. Through this method, we verified the electrochemical dehydration process that coincides with the merging of two redox platforms and a phase transformation in the initial cycles. Furthermore, we discovered that the lattice water is completely removed after several-day cell rest following a single activation cycle. |
| format | Article |
| id | doaj-art-0f3e0f878f6f4f09a095b1c0145dc4c4 |
| institution | DOAJ |
| issn | 2772-5162 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | Magnetic Resonance Letters |
| spelling | doaj-art-0f3e0f878f6f4f09a095b1c0145dc4c42025-08-20T02:57:33ZengKeAi Communications Co. Ltd.Magnetic Resonance Letters2772-51622025-02-015120013510.1016/j.mrl.2024.200135In-cell dehydration of sodium manganese hexacyanoferrate cathode revealed by solid-state NMRZonglin Li0Xiaobing Lou1Shinuo Kang2Dingming Liu3Fushan Geng4Ming Shen5Bingwen Hu6Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, ChinaShanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China; School of Physics and Electrical Engineering, Anyang Normal University, Anyang, 455000, China; Corresponding author. Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China.Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, ChinaSchool of Physics and Electrical Engineering, Anyang Normal University, Anyang, 455000, ChinaShanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, ChinaShanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, ChinaShanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China; Corresponding author.The hard-to-remove lattice water has been regarded as a significant obstacle impeding the practical use of Prussian blue analogue cathodes for sodium-ion batteries. This work monitored the electrochemical evolution of a hydrated monoclinic sodium manganese hexacyanoferrate cathode by solid-state nuclear magnetic resonance (NMR). For the first time, we established a correlation between the chemical shifts of 23Na NMR signals and the presence or absence of lattice water within this cathode. Through this method, we verified the electrochemical dehydration process that coincides with the merging of two redox platforms and a phase transformation in the initial cycles. Furthermore, we discovered that the lattice water is completely removed after several-day cell rest following a single activation cycle.http://www.sciencedirect.com/science/article/pii/S2772516224000421Solid-state NMRDehydrationPrussian blue analoguesSodium-ion batteriesCathode |
| spellingShingle | Zonglin Li Xiaobing Lou Shinuo Kang Dingming Liu Fushan Geng Ming Shen Bingwen Hu In-cell dehydration of sodium manganese hexacyanoferrate cathode revealed by solid-state NMR Magnetic Resonance Letters Solid-state NMR Dehydration Prussian blue analogues Sodium-ion batteries Cathode |
| title | In-cell dehydration of sodium manganese hexacyanoferrate cathode revealed by solid-state NMR |
| title_full | In-cell dehydration of sodium manganese hexacyanoferrate cathode revealed by solid-state NMR |
| title_fullStr | In-cell dehydration of sodium manganese hexacyanoferrate cathode revealed by solid-state NMR |
| title_full_unstemmed | In-cell dehydration of sodium manganese hexacyanoferrate cathode revealed by solid-state NMR |
| title_short | In-cell dehydration of sodium manganese hexacyanoferrate cathode revealed by solid-state NMR |
| title_sort | in cell dehydration of sodium manganese hexacyanoferrate cathode revealed by solid state nmr |
| topic | Solid-state NMR Dehydration Prussian blue analogues Sodium-ion batteries Cathode |
| url | http://www.sciencedirect.com/science/article/pii/S2772516224000421 |
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