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|a 10.1002/adma.202505368
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|a eng
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|a Liu, Mingquan
|e verfasserin
|4 aut
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|a Constructing Continuously-Distributed and Crystalline-NaF-Rich SEI on Hard Carbon Anode Through Binder Chemistry for High-Performance Sodium-Ion Batteries
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|c 2025
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 09.10.2025
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2025 Wiley‐VCH GmbH.
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|a Constructing the continuously-distributed and crystalline-NaF-rich solid electrolyte interface (CC-NaF-SEI) is expected to greatly promote the sodium storage performance of hard carbon (HC) anodes. However, such an impressive concept remains extremely intractable to achieve and lacks an efficiently cost-less strategy. Herein, the application of the commercially available LA133 binder is pioneered to engineer such a CC-NaF-SEI. Through comparative analysis of representative binders with distinct functional groups, reveals the critical role of binder chemistry on SEI regulation. Specifically, the LA133 binder demonstrates a dual-regulation mechanism for CC-NaF-SEI formation. The anion-coordination preferred ─CN bonds induce an anion-enriched interfacial solvation structure, and the ─CONH/─CN groups catalytically cleave P─F bond dissociation in PF6 -, synergistically promoting anion decomposition kinetics to form crystalline NaF. Furthermore, robust hydrogen bonds between multiple polar groups in LA133 and HC surface create the spatially anion-confined microenvironments to guide orderly anion decomposition and facilitate continuous NaF growth into a mechanically integrated SEI. The optimized CC-NaF-SEI endows HC anodes with exceptional sodium storage performance: an ultrahigh initial Coulombic efficiency (95.9%), remarkable reversible capacity (356.6 mAh g-1), and stable cycling under extreme conditions (-20-60 °C). This work provides fundamental insights into binder-SEI correlations, establishing a novel paradigm for interfacial optimization in sodium-ion batteries
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|a Journal Article
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|a anion decomposition
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|a binder
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|a continuously‐distributed
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|a crystalline‐NaF‐rich SEI
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|a hard carbon
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|a Cai, Junming
|e verfasserin
|4 aut
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|a Zuo, Yinze
|e verfasserin
|4 aut
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|a Luo, Wenhao
|e verfasserin
|4 aut
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|a Huang, Yifeng
|e verfasserin
|4 aut
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|a Qiu, Ruoxue
|e verfasserin
|4 aut
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|a Luo, Yiyuan
|e verfasserin
|4 aut
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|a Lei, Jie
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|4 aut
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|a Yan, Hao
|e verfasserin
|4 aut
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|a Yan, Wei
|e verfasserin
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|a Zhang, Jiujun
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 37(2025), 40 vom: 01. Okt., Seite e05368
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
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|g volume:37
|g year:2025
|g number:40
|g day:01
|g month:10
|g pages:e05368
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|u http://dx.doi.org/10.1002/adma.202505368
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