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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201706637
|2 doi
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|a pubmed24n0941.xml
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|a (NLM)29603455
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|a DE-627
|b ger
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|e rakwb
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| 041 |
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|a eng
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| 100 |
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|a Huang, Shaozhuan
|e verfasserin
|4 aut
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|a Efficient Sodium Storage in Rolled-Up Amorphous Si Nanomembranes
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|c 2018
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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 Completed 01.08.2018
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Alloying-type materials are promising anodes for high-performance sodium-ion batteries (SIBs) because of their high capacities and low Na-ion insertion potentials. However, the typical candidates, such as P, Sn, Sb, and Pb, suffer from severe volume changes (≈293-487%) during the electrochemical reactions, leading to inferior cycling performances. Here, a high-rate and ultrastable alloying-type anode based on the rolled-up amorphous Si nanomembranes is demonstrated. The rolled-up amorphous Si nanomembranes show a very small volume change during the sodiation/desodiation processes and deliver an excellent rate capability and ultralong cycle life up to 2000 cycles with 85% capacity retention. The structural evolution and pseudocapacitance contribution are investigated by using the ex situ characterization techniques combined with kinetics analysis. Furthermore, the mechanism of efficient sodium-ion storage in amorphous Si is kinetically analyzed through an illustrative atomic structure with dangling bonds, offering a new perspective on understanding the sodium storage behavior. These results suggest that nanostructured amorphous Si is a promising anode material for high-performance SIBs
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|a Journal Article
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|a alloying-type anode materials
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4 |
|a amorphous Si nanomembranes
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4 |
|a dangling bonds
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|a pseudocapacitance contributions
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|a sodium storage mechanisms
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|a sodium-ion batteries
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| 700 |
1 |
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|a Liu, Lixiang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zheng, Yun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Ye
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kong, Dezhi
|e verfasserin
|4 aut
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1 |
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|a Zhang, Yingmeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shi, Yumeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Lin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Schmidt, Oliver G
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yang, Hui Ying
|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 30(2018), 20 vom: 04. Mai, Seite e1706637
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:30
|g year:2018
|g number:20
|g day:04
|g month:05
|g pages:e1706637
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|u http://dx.doi.org/10.1002/adma.201706637
|3 Volltext
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