Unraveling the Solvent Effect on Solid-Electrolyte Interphase Formation for Sodium Metal Batteries
© 2023 Wiley-VCH GmbH..
Ether-based electrolytes are considered as an ideal electrolyte system for sodium metal batteries (SMBs) due to their superior compatibility with the sodium metal anode (SMA). However, the selection principle of ether solvents and the impact on solid electrolyte interphase formation are still unclear. Herein, we systematically compare the chain ether-based electrolyte and understand the relationship between the solvation structure and the interphasial properties. The linear ether solvent molecules with different terminal group lengths demonstrate remarkably distinct solvation effects, thus leading to different electrochemical performance as well as deposition morphologies for SMBs. Computational calculations and comprehensive characterizations indicate that the terminal group length significantly regulates the electrolyte solvation structure and consequently influences the interfacial reaction mechanism of electrolytes on SMA. Cryogenic electron microscopy clearly reveals the difference in solid electrolyte interphase in various ether-based electrolytes. As a result, the 1,2-diethoxyethane-based electrolyte enables a high Coulombic efficiency of 99.9 %, which also realizes the stable cycling of Na||Na3 V2 (PO4 )3 full cell with a mass loading of ≈9 mg cm-2 over 500 cycles.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:62 |
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| Enthalten in: |
Angewandte Chemie (International ed. in English) - 62(2023), 50 vom: 11. Dez., Seite e202313447 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Wang, Shiyang [VerfasserIn] |
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| Links: |
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| Themen: |
Electrolyte |
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| Anmerkungen: |
Date Revised 06.12.2023 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1002/anie.202313447 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM363771727 |
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| 520 | |a © 2023 Wiley-VCH GmbH. | ||
| 520 | |a Ether-based electrolytes are considered as an ideal electrolyte system for sodium metal batteries (SMBs) due to their superior compatibility with the sodium metal anode (SMA). However, the selection principle of ether solvents and the impact on solid electrolyte interphase formation are still unclear. Herein, we systematically compare the chain ether-based electrolyte and understand the relationship between the solvation structure and the interphasial properties. The linear ether solvent molecules with different terminal group lengths demonstrate remarkably distinct solvation effects, thus leading to different electrochemical performance as well as deposition morphologies for SMBs. Computational calculations and comprehensive characterizations indicate that the terminal group length significantly regulates the electrolyte solvation structure and consequently influences the interfacial reaction mechanism of electrolytes on SMA. Cryogenic electron microscopy clearly reveals the difference in solid electrolyte interphase in various ether-based electrolytes. As a result, the 1,2-diethoxyethane-based electrolyte enables a high Coulombic efficiency of 99.9 %, which also realizes the stable cycling of Na||Na3 V2 (PO4 )3 full cell with a mass loading of ≈9 mg cm-2 over 500 cycles | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Electrolyte | |
| 650 | 4 | |a Molecular Structure | |
| 650 | 4 | |a Sodium Metal Anode | |
| 650 | 4 | |a Solid Electrolyte Interphase | |
| 650 | 4 | |a Solvation Structure | |
| 700 | 1 | |a Weng, Suting |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Xinpeng |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Yue |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Xiangling |e verfasserin |4 aut | |
| 700 | 1 | |a Jie, Yulin |e verfasserin |4 aut | |
| 700 | 1 | |a Pan, Yuxue |e verfasserin |4 aut | |
| 700 | 1 | |a Zhou, Hongmin |e verfasserin |4 aut | |
| 700 | 1 | |a Jiao, Shuhong |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Qi |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Xuefeng |e verfasserin |4 aut | |
| 700 | 1 | |a Cheng, Tao |e verfasserin |4 aut | |
| 700 | 1 | |a Cao, Ruiguo |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Dongsheng |e verfasserin |4 aut | |
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