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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202008810
|2 doi
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|a pubmed24n1095.xml
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|a (DE-627)NLM328759317
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|a (NLM)34331349
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Dong, Ruiqi
|e verfasserin
|4 aut
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| 245 |
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|a Elucidating the Mechanism of Fast Na Storage Kinetics in Ether Electrolytes for Hard Carbon Anodes
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 10.09.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2021 Wiley-VCH GmbH.
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|a The sodium storage performance of a hard carbon (HC) anode in ether electrolytes exhibits a higher initial Coulombic efficiency (ICE) and better rate performance compared to conventional ester electrolytes. However, the mechanism behind faster Na storage kinetics for HC in ether electrolytes remains unclear. Herein, a unique solvated Na+ and Na+ co-intercalation mechanism in ether electrolytes is reported using designed monodispersed HC nanospheres. In addition, a thin solid electrolyte interphase film with a high inorganic proportion formed in an ether electrolyte is visualized by cryo transmission electron microscopy and depth-profiling X-ray photoelectron spectroscopy, which facilitates Na+ transportation, and results in a high ICE. Furthermore, the fast solvated Na+ diffusion kinetics in ether electrolytes are also revealed via molecular dynamics simulation. Owing to the contribution of the ether electrolytes, an excellent rate performance (214 mAh g-1 at 10 A g-1 with an ultrahigh plateau capacity of 120 mAh g-1 ) and a high ICE (84.93% at 1 A g-1 ) are observed in a half cell; in a full cell, an attractive specific capacity of 110.3 mAh g-1 is achieved after 1000 cycles at 1 A g-1
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|a Journal Article
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|a anode
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|a ether electrolytes
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|a hard carbon
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|a kinetics
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|a sodium-ion batteries
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| 700 |
1 |
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|a Zheng, Lumin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bai, Ying
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ni, Qiao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Yu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, Feng
|e verfasserin
|4 aut
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| 700 |
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|a Ren, Haixia
|e verfasserin
|4 aut
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| 700 |
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|a Wu, Chuan
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 33(2021), 36 vom: 05. Sept., Seite e2008810
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:33
|g year:2021
|g number:36
|g day:05
|g month:09
|g pages:e2008810
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|u http://dx.doi.org/10.1002/adma.202008810
|3 Volltext
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