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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202100793
|2 doi
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|a pubmed24n1095.xml
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|a (DE-627)NLM328759023
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|a DE-627
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|a eng
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|a Li, Zhongzhong
|e verfasserin
|4 aut
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|a In Situ Chemical Lithiation Transforms Diamond-Like Carbon into an Ultrastrong Ion Conductor for Dendrite-Free Lithium-Metal Anodes
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|c 2021
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|a Text
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 15.09.2021
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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 Lithium (Li)-metal anodes are of great promise for next-generation batteries due to their high theoretical capacity and low redox potential. However, Li-dendrite growth during cycling imposes a tremendous safety concern on the practical application of Li-metal anodes. Herein, an effective approach to suppress Li-dendrite growth by coating a polypropylene (PP) separator with a thin layer of ultrastrong diamond-like carbon (DLC) is reported. Theoretical calculations indicate that the DLC coating layer undergoes in situ chemical lithiation once assembled with the lithium-metal anode, transforming the DLC/PP separator into an excellent 3D Li-ion conductor. This in situ lithiated DLC/PP separator can not only mechanically suppress Li-dendrite growth by its intrinsically high modulus (≈100 GPa), but also uniformly redistributes Li ions to render dendrite-free lithium deposition. The twofold effects of the DLC/PP separator result in stable cycling of lithium plating/stripping (over 4500 h) at a high current density of 3 mA cm-2 . Remarkably, this approach enables more than 1000 stable cycles at 5 C with a capacity retention of ≈71% in a Li || LiFePO4 coin cell and more than 200 stable cycles at 0.2 C in a Li || LiNi0.5 Co0.3 Mn0.2 O2 pouch cell with cathode mass loading of ≈9 mg cm-2
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|a Journal Article
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|a diamond-like carbon
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|a in situ chemical lithiation
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|a lithium dendrites
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|a lithium-metal anodes
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|a separators
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|a Peng, Manqi
|e verfasserin
|4 aut
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1 |
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|a Zhou, Xiaolong
|e verfasserin
|4 aut
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| 700 |
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|a Shin, Kyungsoo
|e verfasserin
|4 aut
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|a Tunmee, Sarayut
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Xiaoming
|e verfasserin
|4 aut
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| 700 |
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|a Xie, Chengde
|e verfasserin
|4 aut
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|a Saitoh, Hidetoshi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zheng, Yongping
|e verfasserin
|4 aut
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|a Zhou, Zhiming
|e verfasserin
|4 aut
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| 700 |
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|a Tang, Yongbing
|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), 37 vom: 29. Sept., Seite e2100793
|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:37
|g day:29
|g month:09
|g pages:e2100793
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|u http://dx.doi.org/10.1002/adma.202100793
|3 Volltext
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|d 33
|j 2021
|e 37
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|h e2100793
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