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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202104763
|2 doi
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|a pubmed24n1101.xml
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|a (DE-627)NLM330527894
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|a (NLM)34510588
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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 Yin, Linghong
|e verfasserin
|4 aut
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| 245 |
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|a Abnormally High-Lithium Storage in Pure Crystalline C60 Nanoparticles
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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
|b cr
|2 rdacarrier
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|a Date Revised 26.10.2021
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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 Li+ intercalates into a pure face-centered-cubic (fcc) C60 structure instead of being adsorbed on a single C60 molecule. This hinders the excess storage of Li ions in Li-ion batteries, thereby limiting their applications. However, the associated electrochemical processes and mechanisms have not been investigated owing to the low electrochemical reactivity and poor crystallinity of the C60 powder. Herein, a facile method for synthesizing pure fcc C60 nanoparticles with uniform morphology and superior electrochemical performance in both half- and full-cells is demonstrated using a 1 m LiPF6 solution in ethylene carbonate/diethyl carbonate (1:1 vol%) with 10% fluoroethylene carbonate. The specific capacity of the C60 nanoparticles during the second discharge reaches ≈750 mAh g-1 at 0.1 A g-1 , approximately twice that of graphite. Moreover, by applying in situ X-ray diffraction, high-resolution transmission electron microscopy, and first-principles calculations, an abnormally high Li storage in a crystalline C60 structure is proposed based on the vacant sites among the C60 molecules, Li clusters at different sites, and structural changes during the discharge/charge process. The fcc of C60 transforms tetragonal via orthorhombic Lix C60 and back to the cubic phase during discharge. The presented results will facilitate the development of novel fullerene-based anode materials for Li-ion batteries
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|a Journal Article
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|a crystalline C60 nanoparticles
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|a first-principles calculation
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|a high lithium storage
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|a lithium-ion battery anodes
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|a phase evolution
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1 |
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|a Cho, Jiung
|e verfasserin
|4 aut
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|a Kim, Su Jae
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jeon, Il
|e verfasserin
|4 aut
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1 |
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|a Jeon, Injun
|e verfasserin
|4 aut
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|a Park, Mihee
|e verfasserin
|4 aut
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|a Park, Minjoon
|e verfasserin
|4 aut
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|a Jeong, Se-Young
|e verfasserin
|4 aut
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|a Lee, Dae Hyung
|e verfasserin
|4 aut
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|a Seo, Dong-Hwa
|e verfasserin
|4 aut
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| 700 |
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|a Cho, Chae-Ryong
|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), 43 vom: 30. Okt., Seite e2104763
|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:43
|g day:30
|g month:10
|g pages:e2104763
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|u http://dx.doi.org/10.1002/adma.202104763
|3 Volltext
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