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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202303444
|2 doi
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|a pubmed25n1196.xml
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|a (DE-627)NLM358967678
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|a (NLM)37395554
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
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|a Luo, Zhenya
|e verfasserin
|4 aut
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|a Surface Engineering of Fluorinated Graphene Nanosheets Enables Ultrafast Lithium/Sodium/Potassium Primary Batteries
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|c 2023
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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 04.10.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 Wiley-VCH GmbH.
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|a Fluorinated carbon (CFx ) is considered as a promising cathode material for lithium/sodium/potassium primary batteries with superior theoretical energy density. However, achieving high energy and power densities simultaneously remains a considerable challenge due to the strong covalency of the C-F bond in the highly fluorinated CFx . Herein, an efficient surface engineering strategy combining surface defluorination and nitrogen doping enables fluorinated graphene nanosheets (DFG-N) to possess controllable conductive nanolayers and reasonably regulated C-F bonds. The DFG-N delivers an unprecedented dual performance for lithium primary batteries with a power density of 77456 W kg-1 and an energy density of 1067 Wh kg-1 at an ultrafast rate of 50 C, which is the highest level reported to date. The DFG-N also achieves a record power density of 15 256 and 17 881 W kg-1 at 10 C for sodium and potassium primary batteries, respectively. The characterization results and density functional theory calculations demonstrate that the excellent performance of DFG-N is attributed to surface engineering strategies that remarkably improve electronic and ionic conductivity without sacrificing the high fluorine content. This work provides a compelling strategy for developing advanced ultrafast primary batteries that combine ultrahigh energy density and power density
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|a Journal Article
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|a fluorinated graphene nanosheets
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|a high power density
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| 650 |
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|a primary batteries
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| 650 |
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|a surface engineering
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| 650 |
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4 |
|a ultrafast discharge
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1 |
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|a Ma, Jun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Xiao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Duanwei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, Dazhuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Pan, Junan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Pan, Yong
|e verfasserin
|4 aut
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| 700 |
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|a Ouyang, Xiaoping
|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 35(2023), 40 vom: 06. Okt., Seite e2303444
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
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|g volume:35
|g year:2023
|g number:40
|g day:06
|g month:10
|g pages:e2303444
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|u http://dx.doi.org/10.1002/adma.202303444
|3 Volltext
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