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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202202902
|2 doi
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|a pubmed24n1136.xml
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|a (DE-627)NLM341070548
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|a (NLM)35584284
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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 |
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|a Zhao, Yu
|e verfasserin
|4 aut
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| 245 |
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|a An Anode-Free Potassium-Metal Battery Enabled by a Directly Grown Graphene-Modulated Aluminum Current Collector
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|c 2022
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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
|b cr
|2 rdacarrier
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|a Date Revised 21.07.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 Wiley-VCH GmbH.
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|a Potassium (K)-metal batteries have emerged as a promising energy-storage device owing to abundant K resources. An anode-free architecture that bypasses the need for anode host materials can deliver an elevated energy density. However, the poor efficiency of K plating/stripping on potassiophobic anode current collectors results in rapid K inventory loss and a short cycle life. Herein, commercial Al foils are decorated with an ultrathin graphene-modified layer (AlG) through roll-to-roll plasma-enhanced chemical vapor deposition. By harnessing strong adhesion (10.52 N m-1 ) and a high surface energy (66.6 mJ m-2 ), the designed Al@G structure ensures a highly smooth and ordered K plating/stripping process. Consequently, during K-metal plating/stripping, Al@G can operate at a current density of up to 4.0 mA cm-2 and cyclic capacity of up to 4.0 mAh cm-2 , with an ultralong lifespan of up to 1000 h at 0.5 mA cm-2 and stable cycling of up to 750 h under periodic current fluctuations of 0.1-2.0 mA cm-2 . In addition, a novel anode-free K-metal full-cell prototype enabled by Al@G anode current collectors is constructed, demonstrating ameliorative cyclic stability
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|a Journal Article
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|a aluminum foil
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|a anode-free potassium-metal batteries
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|a current collectors
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|a direct growth
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4 |
|a graphene
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1 |
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|a Liu, Bingzhi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yi, Yuyang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lian, Xueyu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Menglei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Shuo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yang, Xianzhong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sun, Jingyu
|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 34(2022), 29 vom: 01. Juli, Seite e2202902
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:34
|g year:2022
|g number:29
|g day:01
|g month:07
|g pages:e2202902
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|u http://dx.doi.org/10.1002/adma.202202902
|3 Volltext
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