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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202201446
|2 doi
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|a pubmed24n1135.xml
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|a (DE-627)NLM340534486
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|a (NLM)35524951
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|a DE-627
|b ger
|c DE-627
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|a eng
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| 100 |
1 |
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|a Kim, Young-Hoon
|e verfasserin
|4 aut
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| 245 |
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|a Enabling 100C Fast-Charging Bulk Bi Anodes for Na-Ion Batteries
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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 07.07.2022
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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 It is challenging to develop alloying anodes with ultrafast charging and large energy storage using bulk anode materials because of the difficulty of carrier-ion diffusion and fragmentation of the active electrode material. Herein, a rational strategy is reported to design bulk Bi anodes for Na-ion batteries that feature ultrafast charging, long cyclability, and large energy storage without using expensive nanomaterials and surface modifications. It is found that bulk Bi particles gradually transform into a porous nanostructure during cycling in a glyme-based electrolyte, whereas the resultant structure stores Na ions by forming phases with high Na diffusivity. These features allow the anodes to exhibit unprecedented electrochemical properties; the developed Na-Bi half-cell delivers 379 mA h g-1 (97% of that measured at 1C) at 7.7 A g-1 (20C) during 3500 cycles. It also retained 94% and 93% of the capacity measured at 1C even at extremely fast-charging rates of 80C and 100C, respectively. The structural origins of the measured properties are verified by experiments and first-principles calculations. The findings of this study not only broaden understanding of the underlying mechanisms of fast-charging anodes, but also provide basic guidelines for searching battery anodes that simultaneously exhibit high capacities, fast kinetics, and long cycling stabilities
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|a Journal Article
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|a 3D porous nanostructures
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4 |
|a bismuth anodes
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|a sodium-ion batteries
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|a ultrafast charging
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|a An, Jae-Hyun
|e verfasserin
|4 aut
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|a Kim, Sung-Yeob
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Xiangmei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Song, Eun-Ji
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Park, Jae-Ho
|e verfasserin
|4 aut
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1 |
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|a Chung, Kyung Yoon
|e verfasserin
|4 aut
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| 700 |
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|a Choi, Yong-Seok
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Scanlon, David O
|e verfasserin
|4 aut
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|a Ahn, Hyo-Jun
|e verfasserin
|4 aut
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| 700 |
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|a Lee, Jae-Chul
|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 34(2022), 27 vom: 08. Juli, Seite e2201446
|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:27
|g day:08
|g month:07
|g pages:e2201446
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|u http://dx.doi.org/10.1002/adma.202201446
|3 Volltext
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