Understanding the correlation between ion transport and side chains in polymer electrolyte
The rise of the new energy market has driven the rapid development of solid-state batteries (SSBs). Polymer electrolytes, due to their excellent interfacial compatibility and high safety, have brought new opportunities to SSBs. We report a polymer side-chain design strategy that combines ionic liqui...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-06-01
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| Series: | Journal of Magnetic Resonance Open |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666441025000160 |
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| author | Ligang Xu Yuqi Li Yongchao shi Yachao Yan Wengui Yu Huajie Luo Jipeng Fu Haiyan Zheng Mingxue Tang |
| author_facet | Ligang Xu Yuqi Li Yongchao shi Yachao Yan Wengui Yu Huajie Luo Jipeng Fu Haiyan Zheng Mingxue Tang |
| author_sort | Ligang Xu |
| collection | DOAJ |
| description | The rise of the new energy market has driven the rapid development of solid-state batteries (SSBs). Polymer electrolytes, due to their excellent interfacial compatibility and high safety, have brought new opportunities to SSBs. We report a polymer side-chain design strategy that combines ionic liquids and low-molecular-weight ether-based molecules into a copolymer electrolyte (CPE). Using nuclear magnetic resonance (NMR) techniques, we investigated the spatial distribution of lithium ions (Li+) and the correlations between anions of different conformations in the CPE. This study found that the introduced ionic liquids and high-freedom ether groups enable rapid ion migration, resulting in an ion conductivity of 1.44 × 10–4 S cm-1 at 25 °C. The dual lithium symmetric battery based on CPE can cycle more than1000 h at a current density of 0.3 mA cm-2, while the LFP|CPE|Li full battery presents high retention after 120 cycles even at ultra-high loading (12.9 mg cm-2) and a high current density of 1 C. |
| format | Article |
| id | doaj-art-e773237fe7294dcd9764ccf7e01a7a8d |
| institution | OA Journals |
| issn | 2666-4410 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Magnetic Resonance Open |
| spelling | doaj-art-e773237fe7294dcd9764ccf7e01a7a8d2025-08-20T02:30:55ZengElsevierJournal of Magnetic Resonance Open2666-44102025-06-012310020010.1016/j.jmro.2025.100200Understanding the correlation between ion transport and side chains in polymer electrolyteLigang Xu0Yuqi Li1Yongchao shi2Yachao Yan3Wengui Yu4Huajie Luo5Jipeng Fu6Haiyan Zheng7Mingxue Tang8Center for High Pressure Science and Technology Advanced Research, Beijing 100193, PR ChinaUniversity of Science and Technology Beijing, Beijing 100083, PR ChinaCenter for High Pressure Science and Technology Advanced Research, Beijing 100193, PR ChinaCenter for High Pressure Science and Technology Advanced Research, Beijing 100193, PR China; University of Science and Technology Beijing, Beijing 100083, PR ChinaUniversity of Science and Technology Beijing, Beijing 100083, PR China; Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province, Institute of Optoelectronic Materials and Devices, China Jiliang University, 310018 Hangzhou, PR ChinaUniversity of Science and Technology Beijing, Beijing 100083, PR ChinaKey Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province, Institute of Optoelectronic Materials and Devices, China Jiliang University, 310018 Hangzhou, PR ChinaCenter for High Pressure Science and Technology Advanced Research, Beijing 100193, PR China; Corresponding author.Center for High Pressure Science and Technology Advanced Research, Beijing 100193, PR China; University of Science and Technology Beijing, Beijing 100083, PR China; Corresponding author at: Center for High Pressure Science and Technology Advanced Research, Beijing 100193, PR China.The rise of the new energy market has driven the rapid development of solid-state batteries (SSBs). Polymer electrolytes, due to their excellent interfacial compatibility and high safety, have brought new opportunities to SSBs. We report a polymer side-chain design strategy that combines ionic liquids and low-molecular-weight ether-based molecules into a copolymer electrolyte (CPE). Using nuclear magnetic resonance (NMR) techniques, we investigated the spatial distribution of lithium ions (Li+) and the correlations between anions of different conformations in the CPE. This study found that the introduced ionic liquids and high-freedom ether groups enable rapid ion migration, resulting in an ion conductivity of 1.44 × 10–4 S cm-1 at 25 °C. The dual lithium symmetric battery based on CPE can cycle more than1000 h at a current density of 0.3 mA cm-2, while the LFP|CPE|Li full battery presents high retention after 120 cycles even at ultra-high loading (12.9 mg cm-2) and a high current density of 1 C.http://www.sciencedirect.com/science/article/pii/S2666441025000160Polymer electrolytesSide-chain designNuclear magnetic resonanceSpatial distributionIon migration |
| spellingShingle | Ligang Xu Yuqi Li Yongchao shi Yachao Yan Wengui Yu Huajie Luo Jipeng Fu Haiyan Zheng Mingxue Tang Understanding the correlation between ion transport and side chains in polymer electrolyte Journal of Magnetic Resonance Open Polymer electrolytes Side-chain design Nuclear magnetic resonance Spatial distribution Ion migration |
| title | Understanding the correlation between ion transport and side chains in polymer electrolyte |
| title_full | Understanding the correlation between ion transport and side chains in polymer electrolyte |
| title_fullStr | Understanding the correlation between ion transport and side chains in polymer electrolyte |
| title_full_unstemmed | Understanding the correlation between ion transport and side chains in polymer electrolyte |
| title_short | Understanding the correlation between ion transport and side chains in polymer electrolyte |
| title_sort | understanding the correlation between ion transport and side chains in polymer electrolyte |
| topic | Polymer electrolytes Side-chain design Nuclear magnetic resonance Spatial distribution Ion migration |
| url | http://www.sciencedirect.com/science/article/pii/S2666441025000160 |
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