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240311s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202312508
|2 doi
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|a pubmed24n1439.xml
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|a (NLM)38465829
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|a DE-627
|b ger
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|a eng
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|a Vaidyula, Rinish Reddy
|e verfasserin
|4 aut
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|a Binary Solvent Induced Stable Interphase Layer for Ultra-Long Life Sodium Metal Batteries
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 13.06.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2024 Wiley‐VCH GmbH.
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|a Sodium foil, promising for high-energy-density batteries, faces reversibility challenges due to its inherent reactivity and unstable solid electrolyte interphase (SEI) layer. In this study, a stable sodium metal battery (SMB) is achieved by tuning the electrolyte solvation structure through the addition of co-solvent 2-methyl tetrahydrofuran (MTHF) to diglyme (Dig). The introduction of cyclic ether-based MTHF results in increased anion incorporation in the solvation structure, even at lower salt concentrations. Specifically, the anion stabilization capabilities of the environmentally sustainable MTHF co-solvent lead to a contact-ion pair-based solvation structure. Time-of-flight mass spectroscopy analysis reveals that a shift toward an anion-dominated solvation structure promotes the formation of a thin and uniform SEI layer. Consequently, employing a NaPF6-based electrolyte with a Dig:MTHF ratio of 50% (v/v) binary solvent yields an average Coulombic efficiency of 99.72% for 300 cycles in Cu||Na cell cycling. Remarkably, at a C/2 cycling rate, Na||Na symmetric cell cycling demonstrates ultra-long-term stability exceeding 7000 h, and full cells with Na0.44MnO2 as a cathode retain 80% of their capacity after 500 cycles. This study systematically examines solvation structure, SEI layer composition, and electrochemical cycling, emphasizing the significance of MTHF-based binary solvent mixtures for high-performance SMBs
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|a Journal Article
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|a electrolyte
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|a long‐term stability
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|a sodium metal batteries
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|a solvation structure
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|a solvent mixtures
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|a Nguyen, Mai H
|e verfasserin
|4 aut
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|a Weeks, Jason A
|e verfasserin
|4 aut
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|a Wang, Yixian
|e verfasserin
|4 aut
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|a Wang, Ziqing
|e verfasserin
|4 aut
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|a Kawashima, Kenta
|e verfasserin
|4 aut
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|a Paul-Orecchio, Austin G
|e verfasserin
|4 aut
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|a Celio, Hugo
|e verfasserin
|4 aut
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|a Dolocan, Andrei
|e verfasserin
|4 aut
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|a Henkelman, Graeme
|e verfasserin
|4 aut
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|a Mullins, C Buddie
|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 36(2024), 24 vom: 01. Juni, Seite e2312508
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:36
|g year:2024
|g number:24
|g day:01
|g month:06
|g pages:e2312508
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|u http://dx.doi.org/10.1002/adma.202312508
|3 Volltext
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